CN102016319B - Scroll compressor - Google Patents
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- CN102016319B CN102016319B CN200980114359.9A CN200980114359A CN102016319B CN 102016319 B CN102016319 B CN 102016319B CN 200980114359 A CN200980114359 A CN 200980114359A CN 102016319 B CN102016319 B CN 102016319B
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Abstract
A scroll compressor in which timing of communication between a high-pressure region and a back pressure chamber and timing of communication between the back pressure chamber and a compression chamber are controlled to prevent excessive back pressure, allowing application of stable back pressure. As a result, the scroll compressor has high efficiency and high reliability. The scroll compressor has a first route (54) for intermittently interconnecting a high-pressure region (30) and a back pressure chamber (29), and also has a second route (55) for intermittently interconnecting the back pressure chamber (29) and a compression chamber (15).
Description
Technical field
The present invention relates to the scroll compressor of a kind of refrigeration plant for cold-warm conditioner and refrigerator etc. or heat pump type water supply device etc.
Background technique
In the past, the scroll compressor that is used for refrigerating and air-conditioning and refrigerator is all generally to make spiral scroll wrap parts intermeshing from fixed scroll member and rotary vortex rotary part that panelling (or wallboard) erects, and between forms pressing chamber.When the rotation vortex is rotated along circular orbit according to the rotation restriction of rotation limting mechanism, change its volume while pressing chamber moves, thereby suck, compress, discharge.Working fluid becomes high pressure conditions along with rotatablely moving of vortex of rotation gradually reduced gradually towards central part.Therefore, deviating from power is rotating on vortex along the directive effect away from fixed scroll.As a result, produce the gap on rotation vortex and fixed scroll, therefore, compression is leaked in the way, causes mis-behave.In order to address this problem, it is to apply intermediate pressure at the back side of rotation vortex that a kind of method is arranged, and prevents from deviating from (for example, with reference to patent documentation 1) from fixed scroll.
Figure 32 is the sectional view of the compressing mechanism of the existing scroll compressor described in patent documentation 1.It is included in and arranges on the end plate of rotation vortex 103 and the service channel 122 from being communicated with the back pressure chamber side opening 122b of section to back pressure chamber 122 openings to the pressing chamber side opening 122c of section of pressing chamber 114 1 side openings, along with rotatablely moving of rotation vortex 103, the pressing chamber side opening 122c of section is by the end plate folding of fixed scroll 102, so, carry out the connection of service channel 122 and close.According to this connection and the operation of closing, the flow resistance of further dwindling the fluid of inflow and outflow between back pressure chamber 112 and pressing chamber 114, and the pressure of back pressure chamber 112 is remained authorized pressure (=intermediate pressure).
Summary of the invention
The problem to be solved in the present invention is as follows:
But, in described existing structure, not open about the situation to back pressure chamber 112 fuel feeding.That is, owing to being configured to the rotation limting mechanism 108 that partition ring is representative in back pressure chamber 112, therefore, the machine oil that need to be used for lubricating.Therefore, generally, derive the machine oil of oil conservator and then supply with back pressure chamber 112.But the machine oil of oil conservator is high pressure conditions.Therefore, if fuel feeding in large quantities, so, the pressure of back pressure chamber 112 will increase, and superfluous back pressure just might be applied to rotates on vortex 103.In the situation that apply superfluous back pressure, thrust load will increase, and therefore, causes that mis-behave and reliability worsen.
In addition, although by service channel 122,114 fuel feeding from back pressure chamber 112 to pressing chamber,, according to the oil supply mode to back pressure chamber 112, a large amount of machine oil flows into pressing chamber 114, and therefore, the viscosity power due to the machine oil that flows into causes mis-behave.And only 114 the service channel 122 from back pressure chamber 112 to pressing chamber, pressing chamber 114 oil supply, be difficult to another one pressing chamber 114 oil supply wherein, therefore, because machine oil is not enough, causes mis-behave.
In addition, pressing chamber 114 openings that the pressing chamber side opening 122c of section of the service channel 122 that back pressure chamber 112 and pressing chamber 114 be communicated with do not formed to the inboard at rotation vortex 103.Therefore, sometimes be difficult to supply with sufficient machine oil to this pressing chamber 114, the compression efficiency that the earial drainage because of working fluid causes occur descend.
Particularly at the suction volume of the outside pressing chamber that scroll wrap outer wall one side of rotation vortex forms with in the different scroll compressor (being called later on asymmetric scroll compressor) of the suction volume of inwall one side forms inboard compression chamber, if by the scroll wrap side leakage, so, compare with the leakage of outside pressing chamber from from outside pressing chamber a to low voltage terminal, the leakage from the inboard compression chamber to the inboard compression chamber of a low voltage terminal increases.
In the capacious asymmetric scroll compressor of suction of the suction volume ratio inboard compression chamber of side pressing chamber, suck the little inboard compression machine of volume and be characterised in that outside, because it sucks difference in volume, large for the rate of pressure rise of crankangle.On the other hand, in any one compressor of the outside and inboard compression machine, also form next pressing chamber revolving the moment of turning around from the airtight end of each pressing chamber up to the rotation vortex, this and symmetrical scroll compressor are same.
Use accompanying drawing that above explanation is replenished.In Figure 33 and Figure 34, there is the scroll wrap side gap D2 of the second inboard compression chamber 114b-2 of cutting apart the first inboard compression chamber 114b-1 and forming after this inboard compression chamber 114b-1; And cut apart the first outside pressing chamber 114a-1 and the scroll wrap side gap D1 of the second outside pressing chamber 114a-2 of forming after the pressing chamber 114a-1 of this outside.
In Figure 34, in the situation that compare the rate of pressure rise of outside pressing chamber 114a and inboard compression chamber 114b, the pressure that sucks the little inboard compression chamber 114b of volume changes and increases.Therefore, compare with the scroll wrap side gap D1 of cutting apart two outside pressing chamber 114a, more easily leak in cutting apart two scroll wrap side gap D2 between inboard compression chamber 114b.Cause the recompression of refrigeration agent by the leakage in gap, scroll wrap side, therefore, descend because unnecessary operation causes compression performance.
Therefore, the present invention is in order to solve above-mentioned existing technical task, and its purpose is, a kind of each Lifetime by restriction high-pressure area and back pressure chamber and back pressure chamber and pressing chamber is provided, thereby can prevent superfluous back pressure, apply the scroll compressor of stable back pressure.
In addition, a pressing chamber is supplied with appropriate machine oil wherein, is communicated with high-pressure area and another pressing chamber, also supplies with appropriate machine oil to another pressing chamber.
Have, its purpose also is, controls with the oil supply path of having considered leakage paths and to oil mass by the pressing chamber pressure distribution of asymmetric scroll compressor, and a kind of realize efficient and the high scroll compressor of reliability are provided again.
The technological means that the present invention solves problem is as follows:
the described scroll compressor of the present invention of scheme 1, make fixed scroll and the engagement of rotation vortex and between formation pressing chamber from runner plate erect whirlpool shape scroll wrap (ラ ッ プ), the back side at described rotation vortex forms high-pressure area and back pressure chamber, restriction by the rotation limting mechanism makes described rotation vortex rotate along the turning radius of circular orbit with regulation, thereby described pressing chamber moves towards the center while changing volume, suck working fluid from the suction port that forms in described fixed scroll, compress, the a series of actions of discharging, it is characterized in that, be provided with: the first path that is communicated with off and on described high-pressure area and described back pressure chamber, and the second path that is communicated with off and on described back pressure chamber and described pressing chamber.
The described the present invention of scheme 2 is characterized in that, in the described scroll compressor of scheme 1, the connection ratio that makes described the second path with respect to the connection ratio in described the first path for more than equal.
The described the present invention of scheme 3 is characterized in that, in the described scroll compressor of scheme 1, when only being communicated with in described the second path, described the first path is communicated with.
The described the present invention of scheme 4 is characterized in that, in the described scroll compressor of scheme 1, make described back pressure chamber by described the second path only with a pair of described pressing chamber in one be communicated with.
The described the present invention of scheme 5 is characterized in that, in the described scroll compressor of scheme 1, makes the minimal path sectional area in minimal path sectional area ratio described the first path in described the second path large.
The described the present invention of scheme 6 is characterized in that, in the described scroll compressor of scheme 1, the described back side configuration sealed member at described rotation vortex is separated into described high-pressure area and described back pressure chamber with described sealed member.
The described the present invention of scheme 7 is characterized in that, in the described scroll compressor of scheme 6, an opening end in described the first path comes and goes on described sealed member.
The described the present invention of scheme 8 is characterized in that, in the described scroll compressor of scheme 1, described the second path is by the first control path that then is communicated with the scroll wrap front end of described rotation vortex through the inside of described rotation vortex from described back pressure chamber; And consist of at the recess that the scroll wrap groove bottom of described fixed scroll forms, rotatablely move by described, described first controls the path to described recess opening off and on.
The described the present invention of scheme 9, it is characterized in that, in the described scroll compressor of scheme 1, described the second path is by consisting of through the second control path that then inside of described rotation vortex is communicated with the thrust face of described rotation vortex from described back pressure chamber, rotatablely move by described, described second controls the path to the vortex teeth groove of described fixed scroll opening off and on.
The described the present invention of scheme 10 is characterized in that, in the described scroll compressor of scheme 1, uses the refrigerator oil of intermiscibility.
The described the present invention of scheme 11 is characterized in that, at the described scroll compressor of scheme 1, the Third Road footpath that is communicated with described high-pressure area and described pressing chamber is set.
The described the present invention of scheme 12, it is characterized in that, in the described scroll compressor of scheme 11, described the second path is communicated with the inboard compression chamber, and described Third Road footpath is communicated with outside pressing chamber, perhaps, described the second path is communicated with described outside pressing chamber, and described Third Road footpath is communicated with described inboard compression chamber.
The described the present invention of scheme 13, it is characterized in that, in the described scroll compressor of scheme 11, described Third Road footpath is set in the inside of described rotation vortex, the opening end of the described pressing chamber side in described Third Road footpath is set at the scroll wrap front end of described rotation vortex.
The described the present invention of scheme 14 is characterized in that, in the described scroll compressor of scheme 13, and the recess that always is communicated with described pressing chamber in described opening end setting.
The described the present invention of scheme 15 is characterized in that, in the described scroll compressor of scheme 11, makes described Third Road footpath be communicated with off and on described high-pressure area and described pressing chamber.
The described the present invention of scheme 16, it is characterized in that, in the described scroll compressor of scheme 15, the described opening end of the described pressing chamber side in described Third Road footpath is set at the scroll wrap front end of described vortex, scroll wrap groove bottom in described fixed scroll arranges recess, so that described opening end is by the opening off and on that rotatablely moves of described rotation vortex.
The described the present invention of scheme 17, it is characterized in that, in the described scroll compressor of scheme 11, described Third Road footpath is set in the inside of described rotation vortex, the opening end of the described pressing chamber side in described Third Road footpath is set in the scroll wrap groove bottom of described rotation vortex.
The described the present invention of scheme 18 is characterized in that, in the described scroll compressor of scheme 11, makes the opening end of described high-pressure area side in the opening end of described high-pressure area side in described the first path and described Third Road footpath at same position.
The described the present invention of scheme 19 is characterized in that, in the described scroll compressor of scheme 1, described the second path is set on the thrust face of described fixed scroll.
the described the present invention of scheme 20, make fixed scroll and the engagement of rotation vortex and between formation pressing chamber from runner plate erect whirlpool shape scroll wrap, described pressing chamber has in the outside pressing chamber of the scroll wrap outside formation of described rotation vortex and the inboard compression chamber that forms in the inboard of described rotation vortex, the suction volume of the described inboard compression of the suction volume ratio chamber of described outside pressing chamber is large, the back side at described rotation vortex forms high-pressure area and back pressure chamber, rotate along the turning radius of circular orbit with regulation by described rotation vortex, thereby described pressing chamber is moved towards the center while changing volume, suck working fluid from formed suction port on described fixed scroll, after in being sealed in described pressing chamber, compress, the a series of actions of discharging, it is characterized in that, be provided with: the first path that is communicated with described high-pressure area and described back pressure chamber, the 4th path of the pressing chamber that is communicated with described back pressure chamber and is not communicated with described suction port, the pressing chamber side opening end in described at least the 4th path is opening off and on to described outside pressing chamber or described inboard compression chamber, supply to described inboard compression chamber always to oil mass than supplying to the total many to oil mass of described outside pressing chamber.
The described the present invention of scheme 21, it is characterized in that, in the described scroll compressor of scheme 20, the described pressing chamber side opening end in described the 4th path is set at the scroll wrap front end of described rotation vortex, along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is at the set recess of the scroll wrap groove bottom of fixed scroll opening off and on.
The described the present invention of scheme 22, it is characterized in that, in the described scroll compressor of scheme 20, the described pressing chamber side opening end in a plurality of described the 4th paths is set on the thrust face of the scroll wrap groove bottom of described rotation vortex or described rotation vortex, along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is at the scroll wrap front end of described pressing chamber and described fixed scroll or periodically move on the thrust face of described pressing chamber and described fixed scroll, thereby off and on to described pressing chamber opening.
The described the present invention of scheme 23, it is characterized in that, in the described scroll compressor of scheme 20, the back pressure chamber side opening end in described the first path is arranged on the described back side of described rotation vortex, and comes and goes on the sealed member of separating described high-pressure area and described back pressure chamber.
The described the present invention of scheme 24 is characterized in that, in the described scroll compressor of scheme 20, the 5th path is set, the pressing chamber that the 5th path is communicated with described back pressure chamber and is communicated with described suction port.
The described the present invention of scheme 25 is characterized in that, in the described scroll compressor of scheme 20, the 6th path is set, the pressing chamber that the 6th path is communicated with described high-pressure area and is communicated with described suction port.
The described the present invention of scheme 26 is characterized in that, in the described scroll compressor of scheme 24, the pressing chamber side opening end in described the 5th path is set at the scroll wrap front end of described rotation vortex.
The described the present invention of scheme 27 is characterized in that, in the described scroll compressor of scheme 25, the pressing chamber side opening end in described the 6th path is set at the scroll wrap front end of described rotation vortex.
The described the present invention of scheme 28, it is characterized in that, in the described scroll compressor of scheme 24, the pressing chamber side opening end in described the 5th path is set at the scroll wrap front end of described rotation vortex, along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is to the recess that arranges in the scroll wrap groove bottom of described fixed scroll opening off and on.
The described the present invention of scheme 29, it is characterized in that, in the described scroll compressor of scheme 25, the pressing chamber side opening end in described the 6th path is set at the scroll wrap front end of described rotation vortex, along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is to the recess that arranges in the scroll wrap groove bottom of described fixed scroll opening off and on.
The described the present invention of scheme 30, it is characterized in that, in the described scroll compressor of scheme 24, the pressing chamber side opening end in a plurality of described the 5th paths is set on the thrust face of the scroll wrap groove bottom of described rotation vortex or described rotation vortex, along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is at the scroll wrap front end of described pressing chamber and described fixed scroll or periodically move on the thrust face of described pressing chamber and described fixed scroll, thereby to described pressing chamber opening off and on.
The described the present invention of scheme 31, it is characterized in that, in the described scroll compressor of scheme 25, the pressing chamber side opening end in a plurality of described the 6th paths is set on the thrust face of the scroll wrap groove bottom of described rotation vortex or described rotation vortex, along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is at the scroll wrap front end of described pressing chamber and described fixed scroll or periodically move on the thrust face of described pressing chamber and described fixed scroll, thereby to described pressing chamber opening off and on.
The described the present invention of scheme 32 is characterized in that, at the described scroll compressor of scheme 1 or 20, described working fluid adopts high-pressure liquid, and described high-pressure liquid is carbon dioxide.
Invention effect of the present invention is as follows:
Scroll compressor of the present invention can prevent superfluous back pressure, and apply stable back pressure by being communicated with off and on respectively high-pressure area and back pressure chamber and back pressure chamber and pressing chamber.
Owing to can enough connection rate controls supplying with the fuel delivery of back pressure chamber from the high-pressure area, therefore, need not the throttling of pore etc., can solve the problem that foreign matter snaps in and stops up.Therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, scroll compressor of the present invention can apply stable pressure at the formed back pressure chamber in the back side of rotation vortex.Simultaneously, can supply with appropriate machine oil to the formed pressing chamber of between.Therefore, can realize efficient and the high scroll compressor of reliability.
And scroll compressor of the present invention is to the inboard compression chamber that is not communicated with suction port and outside pressing chamber fuel feeding, and compares with the total fuel delivery that supplies to outside pressing chamber, makes the total fuel delivery that supplies to the inboard compression chamber more.So just can effectively suppress working fluid from the circinate scroll wrap side slot leakage between two pressing chambers, therefore, can improve compression efficiency.Simultaneously, to these pressing chamber oil supply, can enlarge the width of controlling to oil mass by off and on to the direction of regulating to oil mass.Like this, just can suppress to increase because of the viscosity loss that too much causes to oil mass, therefore, can provide a kind of efficient scroll compressor.
Description of drawings
Fig. 1 is the longitudinal section of the scroll compressor in the first embodiment of the present invention.
Fig. 2 is the sectional view of compressing mechanism of the scroll compressor of Fig. 1.
Fig. 3 is the stator vortex and the sectional elevation that rotates the intermeshing state of vortex that makes the compressing mechanism of Fig. 2.
The first path of the scroll compressor of Fig. 4 presentation graphs 1 and the connected state in the second path.
The first path of the scroll compressor of Fig. 5 presentation graphs 1 and the connected state in the second path.
Fig. 6 is the stator vortex and the plan view that rotates the intermeshing state of vortex that makes the scroll compressor of Fig. 1.
Fig. 7 is the sectional view of the compressing mechanism of the scroll compressor in the second embodiment of the present invention.
Fig. 8 is the stator vortex and the sectional elevation that rotates the intermeshing state of vortex that makes the compressing mechanism of Fig. 7.
Fig. 9 is the longitudinal section of the scroll compressor in the third embodiment of the present invention.
Figure 10 is the sectional view of compressing mechanism of the scroll compressor of Fig. 9.
Figure 11 is the stator vortex and the sectional elevation that rotates the intermeshing state of vortex that makes the compressing mechanism of Figure 10.
Figure 12 is the sectional view of the compressing mechanism of the scroll compressor in the fourth embodiment of the present invention.
Figure 13 is the sectional view of the compressing mechanism of the scroll compressor in the fifth embodiment of the present invention.
Figure 14 is the sectional view of the compressing mechanism of the scroll compressor in the sixth embodiment of the present invention.
Figure 15 is the stator vortex and the sectional elevation that rotates the intermeshing state of vortex that makes the compressing mechanism of Figure 14.
Figure 16 is the sectional view of the compressing mechanism of the scroll compressor in the seventh embodiment of the present invention.
Figure 17 is the sectional view of the compressing mechanism of the scroll compressor in the seventh embodiment of the present invention.
Figure 18 is the stator vortex and the plan view that rotates the intermeshing state of vortex that makes the compressing mechanism of Figure 16 and Figure 17.
Figure 19 is the stator vortex and the sectional elevation that rotates the intermeshing state of vortex that makes the compressing mechanism of Figure 16 and Figure 17.
Figure 20 is the sectional view of the compressing mechanism of the scroll compressor in the eighth embodiment of the present invention.
Figure 21 is the sectional view of the compressing mechanism of the scroll compressor in the eighth embodiment of the present invention.
Figure 22 is the stator vortex and the sectional elevation that rotates the intermeshing state of vortex that makes the compressing mechanism of Figure 20 and Figure 21.
Figure 23 is the sectional view of the compressing mechanism of the scroll compressor in the ninth embodiment of the present invention.
Figure 24 is the sectional view of the compressing mechanism of the scroll compressor in the ninth embodiment of the present invention.
Figure 25 is the stator vortex and the sectional elevation that rotates the intermeshing state of vortex that makes the compressing mechanism of Figure 23 and Figure 24.
Figure 26 is the sectional view of the compressing mechanism of the scroll compressor in other embodiments of the invention.
Figure 27 is the sectional view of the compressing mechanism of the scroll compressor in other embodiments of the invention.
Figure 28 is the sectional view of the compressing mechanism of the scroll compressor in the one 0 embodiment of the present invention.
Figure 29 is the sectional view of the compressing mechanism of the scroll compressor in the one 0 embodiment of the present invention.
Figure 30 is the sectional view of the compressing mechanism of the scroll compressor in other embodiments of the invention.
Figure 31 is the sectional view of the compressing mechanism of the scroll compressor in other embodiments of the invention.
Figure 32 is the sectional view of the compressing mechanism of existing scroll compressor.
Figure 33 is the sectional view of the pressing chamber that forms in existing asymmetric whirlpool scroll wrap.
Figure 34 means the performance plot of the pressure rise of the pressing chamber that forms in existing asymmetric whirlpool scroll wrap.
Description of reference numerals
1 seal container
2 compressing mechanisms
3 motor part
4 crankshafts
The 4a eccentric axial portion
6 machine oil
11 main bearing parts
12 fixed scroll
The 12a runner plate
The 12b scroll wrap
12c scroll wrap groove bottom
12d scroll wrap front end
The 12e recess
The 12f thrust face
12g vortex teeth groove
13 rotation vortexs
The 13a runner plate
The 13b scroll wrap
13c scroll wrap groove bottom
13d scroll wrap front end
The 13e back side
The 13f thrust face
14 rotation limting mechanisms
15 pressing chambers
15a inboard compression chamber
15b outside pressing chamber
16 suction pipes
17 suction ports
18 exhaust ports
19 leaf valves
20 oil conservators
25 pumps
26 oil supply holes
29 back pressure chambers
30 high-pressure areas
54 first paths
54a opening end (high-pressure area side)
54b opening end (back pressure chamber side)
Minimal path sectional area in 54s the first path
55 second paths
55a opening end (back pressure chamber side)
55b opening end (pressing chamber side)
Minimal path sectional area in 55s the second path
56 second paths
56a opening end (back pressure chamber side)
56b opening end (pressing chamber side)
57 second paths
57a back pressure chamber side opening end
66 bearing portions
78 sealed members
81 first paths
81a high-pressure area side opening end
81b back pressure chamber side opening end
82 second paths
82a back pressure chamber side opening end
82b pressing chamber side opening end
83 Third Road footpaths
83a high-pressure area side opening end
83b pressing chamber side opening end
84,85,86 recesses
87 Third Road footpaths
87a high-pressure area side opening end
87b pressing chamber side opening end
90 control the path to oil mass
91 first paths
91a high-pressure area side opening end
91b back pressure chamber side opening end
92 the 4th paths
92a back pressure chamber side opening end
92b pressing chamber side opening end
92c inboard compression chamber side opening end
92d outside pressing chamber side opening end
93 the 5th paths
93a back pressure chamber side opening end
93b suction chamber side opening end
94 the 6th paths
94a high-pressure area side opening end
94b suction chamber side opening end
95a outside pressing chamber
95b inboard compression chamber
96 suction chambers
The inboard suction chamber of 96a
96b outside suction chamber
97 spot facings (ザ グ リ)
The inboard suction chamber of 98a is communicated with recess
98b outside suction chamber is communicated with recess
99a outside pressing chamber is communicated with recess
99b inboard compression chamber is communicated with recess
A, B control the path
D1, gap, D2 scroll wrap side
Embodiment
The scroll compressor of the first mode of execution of the present invention is provided with: the first path that is communicated with off and on high-pressure area and back pressure chamber; The second path that is communicated with off and on back pressure chamber and pressing chamber.According to present embodiment, can prevent superfluous back pressure, apply stable back pressure.In addition, due to can be according to being communicated with rate control from the high-pressure area to the fuel delivery of back pressure chamber, therefore, do not need the throttling of pore etc., can eliminate foreign matter yet and snap in and stop up.Therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The second mode of execution of the present invention is in the scroll compressor of the first mode of execution, the connection ratio that makes the second path with respect to the connection ratio in the first path for more than equal.According to present embodiment, in rotation once, and to compare from the high-pressure area to the interval that back pressure chamber is supplied with machine oil, the interval that is communicated to pressing chamber from back pressure chamber is longer, and therefore, the pressure of back pressure chamber can not raise singularly.That is, do not have superfluous back pressure to be applied on the rotation vortex, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The 3rd mode of execution of the present invention is in the scroll compressor of the first mode of execution, and when only being communicated with in the second path, the first path is communicated with.According to present embodiment, during the supply machine oil from the high-pressure area to back pressure chamber, must be communicated with pressing chamber.Therefore, machine oil can not be trapped in back pressure chamber, and back pressure can not raise singularly yet.That is, do not have superfluous back pressure to be applied on the rotation vortex, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The 4th mode of execution of the present invention is in the scroll compressor of the first mode of execution, by the second path, make back pressure chamber only with a pair of pressing chamber in one be communicated with.According to present embodiment, because back pressure chamber only is communicated with a pressing chamber, therefore, the change of every rotation back pressure once is little, so just is easy to be set into the back pressure of regulation.In addition, under steady state, the adverse current from back pressure chamber to pressing chamber can not occur, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The 5th mode of execution of the present invention is in the scroll compressor of the first mode of execution, makes the minimal path sectional area in minimal path sectional area ratio the first path in the second path large.According to present embodiment, compare to the machine oil inflow resistance that back pressure chamber flows into machine oil, can reduce the machine oil resistance to outflow that machine oil flows out from back pressure chamber.Therefore, no matter how high pressure changes, and can make the pressure of back pressure chamber depend on the pressure of pressing chamber.That is, do not have superfluous back pressure to be applied on the rotation vortex, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The 6th mode of execution of the present invention is in the scroll compressor of the first mode of execution, at the back side of rotation vortex configuration sealed member, uses sealed member to separate high-pressure area and back pressure chamber.According to present embodiment, can prevent that pressure from leaking to back pressure chamber from the high-pressure area, therefore, can only control machine oil in the first path and flow into back pressure chamber.That is, be easy to be set into the back pressure of regulation, simultaneously, can apply stable back pressure, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The 7th mode of execution of the present invention is in the scroll compressor of the 6th mode of execution, and an opening end in the first path comes and goes on sealed member.According to present embodiment, an opening end in the first path is to and from high-pressure area and back pressure chamber, like this, when only two opening ends in the first path produce pressure difference, supplies with machine oil to back pressure chamber.That is, can adjust engine oil supplying with the ratio that opening end is to and from sealed member, therefore, need not the throttling of pore etc., also can eliminate foreign matter and snap in and stop up.Therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The 8th mode of execution of the present invention is in the scroll compressor of the first mode of execution, the second path is by the first control path that then is communicated with the scroll wrap front end of rotation vortex through the inside of rotation vortex from back pressure chamber and consist of at the recess that the scroll wrap groove bottom of fixed scroll forms, by rotatablely moving, first controls the path at recess opening off and on.According to present embodiment, utilize to control path and recess back pressure chamber is communicated with off and on pressing chamber arbitrarily.According to its purposes, the required counterpressure of scroll compressor is different, still, so long as present embodiment just can be tackled suction pressure to any back pressure between head pressure.Therefore, can provide a kind of efficient and high scroll compressor of reliability that meets purposes.
The 9th mode of execution of the present invention is in the scroll compressor of the first mode of execution, the second path by from back pressure chamber through the rotation vortex inside then with the rotation vortex thrust face is communicated with second control the path consist of, by rotatablely moving, second controls the path at the vortex teeth groove discontinuous ground of fixed scroll opening.According to present embodiment, thrust face (scroll wrap peripheral part) and the vortex teeth groove of fixed scroll is to and from the second path, and back pressure chamber and pressing chamber are communicated with off and on.In addition, the key element that consists of the second path is just being rotated the control path that forms on vortex, and therefore, the impact of tolerance of size is little.That is, controlled by the uneven of opening of vortex teeth groove, result, the change of back pressure is also controlled.Therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The one 0 mode of execution of the present invention is in the scroll compressor of the first mode of execution, uses the refrigerator oil of intermiscibility.According to present embodiment, supplying with the moment of machine oil to back pressure chamber from the high-pressure area, the machine oil decompression, therefore, the working fluid that dissolves in machine oil bubbles.As a result, there is the working fluid that becomes gaseous state in back pressure chamber.Therefore, even just in case the balance that the machine oil of back pressure chamber flows into and machine oil flows out is destroyed, this gas is also compressed, can not cause extreme backpressure rising.That is, do not have superfluous back pressure to be applied on the rotation vortex, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The one 1 mode of execution of the present invention is in the scroll compressor of the first mode of execution, and the Third Road footpath that is communicated with high-pressure area and pressing chamber is set.According to present embodiment, be communicated with off and on high-pressure area and back pressure chamber and back pressure chamber and pressing chamber, so just can apply stable back pressure.Simultaneously, can be with one of them pressing chamber of appropriate engine oil supplying.And, by being communicated with high-pressure area and pressing chamber, also can be with another pressing chamber of appropriate engine oil supplying.So just can realize efficient and the high scroll compressor of reliability.
The one 2 mode of execution of the present invention is in the scroll compressor of the one 1 mode of execution, the second path is communicated with the inboard compression chamber, the Third Road footpath is communicated with, perhaps with outside pressing chamber, the second path is communicated with outside pressing chamber, the Third Road footpath is communicated with the inboard compression chamber.According to present embodiment, can pressing chamber and outside pressing chamber be supplied with machine oil to the inside by other path.Therefore, not only can supply with to each pressing chamber the machine oil of optimal dose, and a kind of scroll compressor of realizing efficiently reaching high reliability can be provided.
The one 3 mode of execution of the present invention is in the scroll compressor of the one 1 mode of execution, in the inside of rotation vortex, the Third Road footpath is set, and the opening end of the pressing chamber side in Third Road footpath is set at the scroll wrap front end of rotation vortex.According to present embodiment, the opening end of the pressing chamber side in Third Road footpath is set due to the scroll wrap front end at the rotation vortex, therefore, be easy to adjust setting position and the shape of opening end.Therefore, not only can supply with the machine oil of optimal dose to pressing chamber in the position of the best, and can realize efficient and the high scroll compressor of reliability.
The one 4 mode of execution of the present invention is in the scroll compressor of the one 3 mode of execution, the recess that always is communicated with pressing chamber in the opening end setting.According to present embodiment, the position of the recess that arranges by the scroll wrap front end that is adjusted at the rotation vortex can be with via the engine oil supplying inboard compression chamber in Third Road footpath or any one pressing chamber in the pressing chamber of the outside.In addition, by adjusting shape and the degree of depth of recess, the fuel delivery of supplying with pressing chamber not only can be adjusted at an easy rate, efficient scroll compressor can also be realized.
The one 5 mode of execution of the present invention is in the scroll compressor of the one 1 mode of execution, and the Third Road footpath is communicated with off and on high-pressure area and pressing chamber.According to present embodiment, be communicated with off and on pressing chamber by making the high-pressure area, not only can supply with appropriate machine oil to pressing chamber at an easy rate, and can realize efficient scroll compressor.
The one 6 mode of execution of the present invention is in the scroll compressor of the one 5 mode of execution, the opening end of the pressing chamber side in Third Road footpath is set at the scroll wrap front end of vortex, scroll wrap groove bottom in fixed scroll arranges recess, make its by rotatablely moving of vortex of rotation opening off and on.According to present embodiment, the shape of the recess that arranges by the scroll wrap groove bottom that is adjusted at fixed scroll, the opening end that can control at an easy rate the pressing chamber side in Third Road footpath is communicated with the needed time with pressing chamber.Therefore, not only can be with appropriate engine oil supplying pressing chamber, and can realize efficient scroll compressor.
The one 7 mode of execution of the present invention is in the scroll compressor of the one 1 mode of execution, in the inside of rotation vortex, the Third Road footpath is set, and the opening end of the pressing chamber side in Third Road footpath is set in the scroll wrap groove bottom of rotation vortex.According to present embodiment, due to the scroll wrap of not processing the rotation vortex, therefore, can simplify processing.The rigidity that can suppress simultaneously to rotate the scroll wrap of vortex reduces.
The one 8 mode of execution of the present invention is in the scroll compressor of the one 1 mode of execution, makes the opening end of high-pressure area one side in the opening end of high-pressure area one side in the first path and Third Road footpath be positioned at same position.According to present embodiment, can simplify processing, simultaneously, can unify the required parts in each path, reduce number of components.In addition, because processing place reduces, therefore, the rigidity that can suppress the rotation vortex that causes because of processing reduces.
The one 9 mode of execution of the present invention is in the scroll compressor of the first mode of execution, and the second path is set on the thrust face of fixed scroll.According to present embodiment, can prevent superfluous back pressure, apply stable back pressure.In addition, due to can be according to the fuel delivery that is communicated with rate control and supplies with to back pressure chamber from the high-pressure area, therefore, need not the throttling of pore etc., just can eliminate foreign matter and snap in and stop up.Therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
The scroll compressor of the 20 mode of execution of the present invention arranges the first path of being communicated with high-pressure area and back pressure zone, be communicated with back pressure chamber and the 4th path of the pressing chamber that is not communicated with suction port, the pressing chamber side opening end at least the four path is pressing chamber or inboard compression chamber opening off and on laterally, and the total fuel delivery that supplies to the inboard compression machine is more than the total fuel delivery that supplies to outside pressing chamber.According to present embodiment, in inboard compression chamber and outside pressing chamber, can effectively suppress from the leakage in the gap, scroll wrap side between the pressing chamber of enclosing working fluid at pressing chamber and the next one of previous inclosure working fluid, and can suppress to increase because of the viscosity loss that too much causes to oil mass.
The 21 mode of execution of the present invention is in the scroll compressor of the 20 mode of execution, the pressing chamber side opening in the 4th path is set at the scroll wrap front end of rotation vortex, along with rotation the rotatablely moving of vortex, the recess that pressing chamber side opening end arranges to the scroll wrap groove bottom in fixed scroll is opening off and on.According to present embodiment, shape according to diameter and length and the recess in the 4th path, can control fuel delivery by enough Lifetimes, therefore, supply with the adjustment range of the fuel delivery in pressing chamber and the pressure adjustment range of back pressure chamber and enlarge, can further improve the efficient of compressor and the stability of back pressure.
The 22 mode of execution of the present invention is in the scroll compressor of the 20 mode of execution, in the scroll wrap groove bottom of rotation vortex or the pressing chamber side opening end in a plurality of the 4th paths is set on the thrust face of rotation vortex, along with rotatablely moving of rotation vortex, periodically move on the thrust face of the scroll wrap front end of pressing chamber and fixed scroll or pressing chamber and fixed scroll, so pressing chamber side opening end is just to pressing chamber opening off and on.According to present embodiment, except the effect of the 21 mode of execution, only runner plate is implemented hole processing, just can form the 4th path, therefore, can reduce processing quantity.
The 23 mode of the present invention is in the scroll compressor of the 20 mode of execution, and the back pressure chamber side opening end in the first path is arranged on the described back side of described rotation vortex, and comes and goes on the sealed member of separating high-pressure area and back pressure chamber.According to present embodiment, can further dwindle supply with pressing chamber to oil mass, therefore, supply with the adjustment range of the fuel delivery in pressing chamber and the pressure adjustment range of back pressure chamber and enlarge, can further improve the efficient of compressor and the stability of back pressure.In addition, even in the once rotation of crankshaft, exist the 4th path not to be communicated with the state of back pressure chamber and pressing chamber, be communicated with off and on by making the first path, so also can suppress superfluous pressure rise.And, can control the oil level that flows into back pressure chamber from the high-pressure area according to Lifetime.Therefore, need not in the first path to arrange and be used for the restriction of adjusting oil mass, can avoid foreign matter to snap in restriction, also can put forward the high property of reliability.
The 24 mode of execution of the present invention is in the scroll compressor of the 20 mode of execution, and the 5th path is set, the pressing chamber that the 5th path is communicated with back pressure chamber and is communicated with suction port.According to present embodiment, the effect of the pressing chamber that the machine oil performance sealing of supplying with from back pressure chamber is communicated with suction port.Therefore, the leakage of the working fluid in suction stroke is suppressed, and volumetric efficiency improves, and therefore, can further improve the efficient of compressor.
The 25 mode of execution of the present invention is in the scroll compressor of the 20 mode of execution, and the 6th path is set, the pressing chamber that the 6th path is communicated with the high-pressure area and is communicated with suction port.According to present embodiment, the machine oil of high pressure is supplied to the pressing chamber that is communicated with suction port.Therefore, the greasy property during the large high loaded process of differential pressure improves, and the inordinate wear of scroll wrap is controlled, and therefore, can put forward the high property of reliability.
The 26 mode of execution of the present invention is in the scroll compressor of the 24 mode of execution, and the pressing chamber side opening end in the 5th path is set at the scroll wrap front end of rotation vortex.According to present embodiment, the water hammer that the folding because of the oil supply path causes can not occur, can reduce the noise that produces because of working fluid.
The 27 mode of execution of the present invention is in the scroll compressor of the 25 mode of execution, and the pressing chamber side opening end in the 6th path is set at the scroll wrap front end of rotation vortex.According to present embodiment, the shape of the spot facing that forms according to the diameter in the 6th path and length and in tip portion can be controlled fuel delivery.Therefore, the adjustment range of the fuel delivery in pressing chamber enlarges, and the volumetric efficiency variation that the suction heating causes is controlled, therefore, can improve the efficient of compressor.
The 28 mode of execution of the present invention is in the scroll compressor of the 24 mode of execution, the pressing chamber side opening end in the 5th path is set at the scroll wrap front end of rotation vortex, along with rotation the rotatablely moving of vortex, the recess that pressing chamber side opening end arranges to the scroll wrap groove bottom in fixed scroll is opening off and on.According to present embodiment, the Lifetime of the recess of the pressing chamber side opening end of the scroll wrap front end of the enough rotation vortexs of energy and the scroll wrap groove bottom of fixed scroll is controlled fuel delivery, therefore, can carry out more careful adjustment, the volumetric efficiency variation that the suction heating causes is controlled, therefore, can improve the efficient of compressor.
The 29 mode of execution of the present invention is in the scroll compressor of the 25 mode of execution, the pressing chamber side opening end in the 6th path is set at the scroll wrap front end of rotation vortex, along with rotation the rotatablely moving of vortex, the recess that pressing chamber side opening end arranges to the scroll wrap groove bottom in fixed scroll is opening off and on.According to present embodiment, the Lifetime of the recess of the pressing chamber side opening end of the scroll wrap front end of the enough rotation vortexs of energy and the scroll wrap groove bottom of fixed scroll is controlled fuel delivery, therefore, can carry out more careful adjustment, the volumetric efficiency variation that the suction heating causes is controlled, therefore, can improve the efficient of compressor.
The 30 mode of execution of the present invention is in the scroll compressor of the 24 mode of execution, the pressing chamber side opening end in a plurality of the 5th paths is set on the thrust face of the scroll wrap groove bottom of rotating vortex or rotation vortex, along with rotatablely moving of rotation vortex, pressing chamber side opening end periodically moves in the thrust face of the scroll wrap front end of pressing chamber and fixed scroll or pressing chamber and fixed scroll, like this to pressing chamber opening off and on.According to present embodiment, owing to only the rotation vortex just being processed and can therefore, can be reduced manufacturing procedure off and on to the pressing chamber fuel feeding, can adjust to oil mass by enough Lifetimes simultaneously.
The 31 mode of execution of the present invention is in the scroll compressor of the 25 mode of execution, the pressing chamber side opening end in a plurality of the 5th paths is set on the thrust face of the scroll wrap groove bottom of rotating vortex or rotation vortex, along with rotatablely moving of rotation vortex, pressing chamber side opening end periodically moves in the thrust face of the scroll wrap front end of pressing chamber and fixed scroll or pressing chamber and fixed scroll, like this to pressing chamber opening off and on.According to present embodiment, owing to only the rotation vortex just being processed and can therefore, can be reduced manufacturing procedure off and on to the pressing chamber fuel feeding, can adjust to oil mass by enough Lifetimes simultaneously.
The 32 mode of execution of the present invention be first or the scroll compressor of the 20 mode of execution in, working fluid adopts for example carbon dioxide of high-pressure refrigerant.According to present embodiment, even operation pressure is high, change is also few, can obtain stable back pressure.That is, successful of the present invention can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
(embodiment 1)
Below, with reference to accompanying drawing, embodiments of the invention are described.Have, the present invention is not limited to these embodiments again.
The first embodiment of the present invention is described.Fig. 1 is the longitudinal section of the scroll compressor in the first embodiment of the present invention, and Fig. 2 is the sectional view of compressing mechanism of the scroll compressor of Fig. 1.Below, structure, operation and the effect of the scroll compressor of the present embodiment 1 described.
As shown in Figure 1 and Figure 2, the scroll compressor of the present embodiment is made of seal container 1, the compressing mechanism 2 that has in the inside of this seal container 1, motor part 3 and oil conservator 20.
At the main bearing parts 11 of the fixing crankshaft 4 of the methods such as the interior employing welding of seal container 1 and shrink fit and between the fixed scroll 12 of fixing with bolt on these main bearing parts 11, clip the rotation vortex 13 that meshes with fixed scroll 12, consist of scroll compressor structure 2.Between rotation vortex 13 and main bearing parts 11, rotation limting mechanism 14 is set, this rotation limting mechanism 14 guides it to carry out the formations such as partition ring of circular orbit motion by the rotation that prevents from rotating vortex 13.
And, be positioned at the eccentric axial portion 4a of crankshaft 4 upper ends by use, come eccentric drive rotation vortex 13, and make rotation vortex 13 do the circular orbit motion.
Like this, the pressing chamber 15 that forms between fixed scroll 12 and rotation vortex 13 moves towards central part from outer circumferential side, simultaneously its volume reducing.Utilize this volume-variation, from the refrigerant gas that sucks as working fluid with the suction port 17 of the peripheral part of the outer suction pipe that is communicated with 16 of seal container 1 and fixed scroll 12, enclose in pressing chamber 15 and compression.And, adopt followingly to consist of: make to become the above refrigerant gas of authorized pressure and push leaf valve 19 open, from the exhaust port 18 of the central part of fixed scroll 12 repeatedly to the interior discharge of seal container 1.
At the scroll wrap front end 13d of rotation vortex 13, according to the result of measuring the temperature distribution in operation process, from winding top to the mode that the winding end as peripheral part increases gradually as central part, the gentle slope shape is set according to the spring height.The dimensional changes that causes with regard to the energy absorbing thermal expansion like this prevents micro-slip.
In addition, form high-pressure area 30 and be configured to high pressure and the middle back pressure chamber 29 of pressing of low pressure at the back side 13e of rotation vortex 13.By exerting pressure on the 13e of this back side, rotation vortex 13 just stably is pressed on fixed scroll 12, therefore, can reduce leakage.Simultaneously, can stably carry out the circular orbit motion.
And, in the lower end of crankshaft 4, pump 25. being set, this pump 25 is simultaneously driven with scroll compressor in the compressor operation process.Like this, the machine oil 6 that has in the oil conservator 20 that the bottom of seal container 1 arranges of pump 25 sucking-offs.And machine oil 6 is fed into compressing mechanism 2 by connecting the oil supply hole 26 in crankshaft 4.The supply pressure of this moment equates substantially with the head pressure of scroll compressor, becomes the back pressure source to rotation vortex 13.Like this, rotation vortex 13 can not separate with fixed scroll or inhomogeneous contact, plays consistently the compression function of regulation.
Like this, the part of the machine oil 6 of supplying with enters eccentric axial portion 4a and the embedding part of rotation vortex 13 and the bearing portion 66 between crankshaft 4 and main bearing parts 11, to obtain pressure release because supplying with pressure and deadweight.And this machine oil 6 falls after lubricated various piece, returns to oil conservator 20.
As shown in Figure 2, form always at back pressure chamber 29 split sheds on rotation vortex 13, control the path as first of the second path 55 with one of them opening end 55a.And along with rotatablely moving of rotation vortex 13, this second path 55 is communicated with back pressure chamber 29 and pressing chamber 15 off and on.
Fig. 3 is the sectional elevation when making rotation vortex 13 and fixed scroll 12 intermeshing state, and Fig. 3 (A), (B), (C), (D) represent that successively phase place is offset respectively the figure of 90 degree.
For example, in the situation that adopt structure shown in Figure 3, control recess 12e that another opening end 55b that the path has forms to the scroll wrap groove bottom 12c in fixed scroll 12 opening periodically by making as first of the second path 55, thereby realize intermittently being communicated with.
Under the state of Fig. 3 (B), opening end 55b is to recess 12e opening.Under this state, machine oil 6 is supplied to pressing chamber 15 by controlling the path as first of the second path 55 from back pressure chamber 29.
Relative with it, under the state of Fig. 3 (A), (C), (D), opening end 55b is to recess 12e opening, therefore, can be from back pressure chamber 29 to pressing chamber 15 do not supply with machine oil 16.
As known from the above, the machine oil 6 that enters back pressure chamber 29 by the first path 54 is directed to pressing chamber 15 by the second path 55, the sealing when performance improves compression and the effect that improves lubricity.
Herein, the oil mass in back pressure chamber 29 is described.This oil mass is related to by the machine oil 6 of the first path 54 30 inflow back pressure chambers 29 from the high-pressure area and the machine oil 6 that pass through 15 outflows from back pressure chamber 29 to pressing chamber of the second path 55.
And in the situation that the former oil mass is many, superfluous machine oil 6 is fed into back pressure chamber 29, therefore, and pressure rise.Its result, superfluous back pressure are applied on rotation vortex 13.In the situation that apply superfluous back pressure, thrust load increases, and therefore, exists to cause that mis-behave and reliability worsen such problem.
Therefore, in the scroll compressor of the present embodiment, the first path 54 and the second path 55 are communicated with off and on.Specifically, an opening end 54a who makes the first path 54 is 30 openings to the high-pressure area always, make another opening end 54b that forms at the back side 13e of rotation vortex 13 be to and from periodically high-pressure area 30 and back pressure chamber 29.
Like this, owing to the machine oil 6 of surplus can not being supplied to back pressure chamber 29, therefore, can prevent the abnormal rising of pressure.As a result, not only can prevent that superfluous back pressure is applied on rotation vortex 13, can also apply stable back pressure.
In addition, can control from the high-pressure area 30 fuel deliveries that supply to back pressure chamber 29 to be communicated with ratio.Therefore, can consist of with the size more than 10 times of oil strainer the diameter in the first path 54.So just can not snap in foreign matter in passage stops up.Therefore, can apply stable back pressure, simultaneously can be with the lubricated kilter that remains of thrust slide part and rotation limting mechanism 14.Therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
Have, as shown in Figure 2, the first path 54 has an opening end 54a and another opening end 54b in the end in the first path 54, and is communicated with off and on high-pressure area 30 and back pressure chamber 29 again.
In addition, the connection ratio that makes the second path 55 with respect to the connection ratio in the first path 54 for more than equal.Fig. 4 means the phase place with respect to rotation vortex 13, the figure of the connected state in the first path 54 and the second path 55.
As shown in Figure 4, in rotation once, 30 compare to the interval that back pressure chamber 29 is communicated with from the high-pressure area with the first path 54, with the second path 55 from the interval that back pressure chamber 29 is communicated to pressing chamber 15 be set as its equal more than.
According to this structure, to compare with machine oil inlet time that machine oil in the first path 54 flows in back pressure chamber 29, the machine oil in the second path 55 is longer from the machine oil delivery time that back pressure chamber 29 flows out, and therefore, the pressure of back pressure chamber 29 can not raise singularly.That is, owing to not applying superfluous back pressure on rotation vortex 13, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, only when the second path 55 is communicated with, the first path 54 is communicated with.Fig. 5 and Fig. 4 are same, mean the phase place for rotation vortex 13, the figure of the connected state in the first path 54 and the second path 55.
As shown in Figure 5, set for: in rotation once, be communicated to the interval of pressing chamber 15 from back pressure chamber 29 in the second path 55, the first path 54 30 is communicated with to back pressure chamber 29 from the high-pressure area.
According to this structure, by the first path 54 from high-pressure area 30 to back pressure chamber 29 supply with machine oil 6 during, must 15 supply with machine oil 6 from back pressure chamber 29 to pressing chamber by the second path 55.Therefore, machine oil 6 can not be trapped in back pressure chamber 29, and the pressure of back pressure chamber 29 can not raise singularly yet.That is, owing to not applying superfluous back pressure on rotation vortex 13, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, by the second path 55, back pressure chamber 29 only is communicated with a pressing chamber 15a in a pair of pressing chamber 15.Like this, because back pressure chamber 29 only is communicated with pressing chamber 15a, therefore, the change of every rotation back pressure once is all little, so just easily sets the back pressure of regulation for.Under steady state, do not have the adverse current that flows to pressing chamber 15 from back pressure chamber 29 yet, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, make the minimal path sectional area 55s in the second path 55 larger than the minimal path sectional area 54s in the first path 54.Like this, the machine oil inflow resistance that flows into back pressure chamber 29 with machine oil is compared, and can dwindle the machine oil resistance to outflow that machine oil flows out from back pressure chamber 29.Therefore, no matter how high pressure changes, and can make the pressure of back pressure chamber 29 depend on the pressure of pressing chamber 15.That is, owing to not applying superfluous back pressure on rotation vortex 13, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, configure sealed member 78 by the back side 13e at rotation vortex 13, and can be separated to form high-pressure area 30 and back pressure chamber 29.Like this, just can prevent that with sealed member 78 pressure from 30 revealing to back pressure chamber 29 from the high-pressure area, therefore, only just can control machine oil inflow back pressure chamber 29 with the first path 54.That is, easily set the back pressure of regulation for, can apply stable back pressure simultaneously, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, form the opening end 54b in the first path 54 at the back side 13e of rotation vortex 13, and contact on sealed member 78.And, adopt to make the always structure of 30 openings to the high-pressure area of another opening end 54a.According to this structure, realize that be communicated with the intermittence of high-pressure area 30 and back pressure chamber 29.
Fig. 6 makes rotation vortex 13 intermeshing with fixed scroll 12, and the plan view when observing from the back side of rotation vortex 13, Fig. 6 (A), (B), (C), (D) are to represent that successively phase place is offset respectively the figure of 90 degree.
The zone, the back side that as shown in Figure 6, will rotate vortex 13 with sealed member 78 is separated to form inboard high-pressure area 30 and the back pressure chamber 29 in the outside.
Under the state of Fig. 6 (B), opening end 54b is to back pressure chamber 29 openings as sealed member 78 outsides, and therefore, machine oil 6 30 is fed into back pressure chamber 29 from the high-pressure area.
In contrast, under the state of Fig. 6 (A), (C), (D), opening end 54b is to high-pressure area 30 openings as sealed member 78 inboards, and therefore, machine oil 6 can be from the high-pressure area 30 supply to back pressure chamber 29.
That is, when the opening end 54b in the first path 54 was to and from high-pressure area 30 and back pressure chamber 29, when only producing pressure difference between the opening end 54a in the first path 54 and opening end 54b, 30 supplied with machine oil 6 to back pressure chamber 29 from the high-pressure area.
In this structure, be to and from the ratio of sealed member 78 by changing opening end 54b and just can adjust fuel feeding.Therefore, can be to consist of the diameter in the first path 54 with respect to the size more than 10 times of oil strainer.So just can not snap in foreign matter in passage stops up.Therefore, can apply stable back pressure, simultaneously can be with the lubricated kilter that remains on of thrust slide part and rotation limting mechanism 14.Therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, in the present embodiment, always be in high-pressure area 30 for the opening end 54a in the first path 54, the example that opening end 54b is to and from the situation of high-pressure area 30 and back pressure chamber 29 is illustrated.But the opening end 54a in the first path 54 is to and from high-pressure area 30 and back pressure chamber 29, and opening end 54b always is positioned in the situation of back pressure chamber 29, also can produce pressure difference at two opening end 54a, 54b, therefore, can realize intermittently being communicated with, obtain same effect.
(embodiment 2)
The second embodiment of the present invention is described.Fig. 7 is the sectional view of the compressing mechanism of the scroll compressor in the second embodiment of the present invention.In the present embodiment, the invention different from embodiment 1 partly described.That is, in Fig. 7, use identical mark for the member identical with Fig. 2, and the description thereof will be omitted.
As shown in Figure 7, in the scroll compressor of the present embodiment, the second path 56 is by from back pressure chamber 29 inside through rotation vortexs 13, and what then is communicated with the thrust face 13f of rotation vortex 13 second controls the path formation.And according to rotatablely moving, second controls the path at the vortex teeth groove 12g of fixed scroll 12 opening off and on.
Fig. 8 is the sectional elevation under rotation vortex 13 and the intermeshing state of fixed scroll 12, and Fig. 8 (A), (B), (C), (D) represent that successively phase place is offset respectively the figure of 90 degree.
For example, in the situation that adopt structure shown in Figure 8, be to and from thrust face 12f and the vortex teeth groove 12g of fixed scroll 12 by making the second opening end 56b that controls the path as the second path 56, and realize that be communicated with the intermittence of back pressure chamber 29 and pressing chamber 15.
Under the state of Fig. 8 (B), opening end 56b is at vortex teeth groove 12g opening.Under this state, machine oil 6 is fed into pressing chamber 15 from back pressure chamber 29 by vortex teeth groove 12g by controlling the path as second of the second path 56.
Relative with it, under the state of Fig. 8 (A), (C), (D), opening end 56b faces thrust face 12f, therefore, and not at vortex teeth groove 12g opening.Therefore, can be from back pressure chamber 29 to pressing chamber 15 do not supply with machine oil 6.
Usually, rotation vortex 13 and fixed scroll 12 are assembled under the state that the core that makes mutual circinate scroll wrap coincide, and the gap when realizing running is even.
As described in Example 1, be two (for example 2 holes) in the situation that consist of the key element in the second path 55, each key element and each scroll wrap have tolerance, and therefore, the tolerance of size of two key elements exerts an influence.That is, back pressure change and aberrations in property in the situation that opening is minimum and maximum, occur in the opening ratio expanded range in the second path 55.
Relative with it, as shown in this embodiment, are one (for example 1 hole) in the situation that consist of the key element in the second path 56, the impact of tolerance of size is only a key element.That is, the scope of opening ratio is dwindled, result, and back pressure change and aberrations in property are controlled, and therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
But, the refrigerator oil of use intermiscibility in scroll compressor of the present invention, so, in 30 moment to back pressure chamber 29 supply machine oil 6 from the high-pressure area, machine oil 6 decompressions, therefore, the working fluid that dissolves in machine oil 6 bubbles.As a result, there is the working fluid that becomes gaseous state in back pressure chamber 29.Therefore, even just in case the balance that the machine oil of back pressure chamber 29 flows into and machine oil flows out is destroyed, this gas also can be compressed, can not cause extreme backpressure rising.That is, owing to not applying superfluous back pressure on rotation vortex 13, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, in the situation that working fluid adopts for example carbon dioxide of high-pressure refrigerant, according to scroll compressor of the present invention, pressure oscillation is few, also can apply stable back pressure.
(embodiment 3)
The third embodiment of the present invention is described.Fig. 9 is the longitudinal section of the scroll compression body in the third embodiment of the present invention, and Figure 10 is the sectional view of compressing mechanism of the scroll compressor of Fig. 9, and Figure 11 is the fixed scroll of compressing mechanism of Figure 10 and the sectional elevation under the intermeshing state of rotation vortex.
As shown in Figure 9, the scroll compressor of the present embodiment is at the main bearing parts 11 of the fixing crankshaft 4 of the methods such as the interior employing welding of seal container 1 and shrink fit and between the fixed scroll 12 of fixing with bolt on these main bearing parts 11, clip the rotation vortex 13 that meshes with fixed scroll 12, consist of scroll compressor structure 2.And, between rotation vortex 13 and main bearing parts 11, rotation limting mechanism 14 is set, this rotation limting mechanism 14 by the rotation that prevents from rotating vortex 13, guide its partition ring that carries out the circular orbit motion etc. to consist of.
And, by being come eccentric drive rotation vortex 13 by the eccentric axial portion 4a that is positioned at crankshaft 4 upper ends, and make rotation vortex 13 do the circular orbit motion.Like this, between fixed scroll 12 and rotation vortex 13, form outer wall and the inwall of the scroll wrap 12b of the inboard compression chamber 15a of the inwall clamping of the scroll wrap 13b of rotation vortex 13 and the vortex 12 that is fixed and the outside pressing chamber 15b of the outer wall clamping of the scroll wrap 13b of rotation vortex 13 of the scroll wrap 12b of the vortex 12 that is fixed.(with reference to Figure 11)
The volume of each of this each inboard compression chamber 15a (below be called pressing chamber 15a) and outside pressing chamber 15b (below be called pressing chamber 15b) all reduces towards central part from outer circumferential side.Utilize this variation, then compress from sucking refrigerant gas with the suction port 17 of the peripheral part of the outer suction pipe that is communicated with 16 of seal container 1 and fixed scroll 12.And, adopt followingly to consist of: make to become the above refrigerant gas of authorized pressure and push leaf valve 19 open, be discharged to repeatedly in seal container 1 from the exhaust port 18 of the central part of fixed scroll 12.
Back portion at rotation vortex 13 has the sealed member 78 that is configured on main bearing parts 11.And, when being rotated motion, utilize sealed member 78 be separated to form as the high-pressure area 30 of the head pressure atmosphere of the medial region of sealed member 78 and as exterior lateral area be configured to high pressure and low pressure in the middle of the back pressure chamber 29 of pressing.By exerting pressure on this back side, rotation vortex 13 just stably is pressed on fixed scroll 12, therefore, can reduce leakage.Can stably carry out simultaneously the circular orbit motion.
The other end down at crankshaft 4 arranges pump 25, and this pump 25 is simultaneously driven with scroll compressor in the compressor operation process.Like this, the machine oil 6 that has in the oil conservator 20 that seal container 1 bottom arranges of pump 25 sucking-offs.And machine oil 6 is supplied to compressing mechanism 2 by connecting the oil supply hole 26 in crankshaft 4.The supply pressure of this moment equates substantially with the head pressure of scroll compressor, becomes the back pressure source to rotation vortex 13.Like this, rotation vortex 13 can not separate with fixed scroll or contact unevenly, plays consistently the compression function of regulation.
Like this, the part of the machine oil 6 of supplying with enters eccentric axial portion 4a and the embedding part of rotation vortex 13 and the bearing portion 66 between crankshaft 4 and main bearing parts 11, to obtain pressure release because supplying with pressure and deadweight.And, fall after the lubricated various piece of this machine oil 6, return to oil conservator 20.
And, by the first path 81 being set in rotation in vortex 13, thereby will be fed into the rotatablely moving across sealed member 78 ground and 30 supply with to back pressure chamber 29 off and on from the high-pressure area of another part utilization rotation vortex 13 of machine oil 6 of high-pressure area 30 at the runner plate 13a back side of rotation vortex 13.
As shown in figure 10, along with rotatablely moving, rotation vortex 13 repeats the state of Figure 10 (a), Figure 10 (b).At this moment, at the back side 13e of the runner plate 13a that rotates vortex 13, the inboard of sealed member 78 forms high-pressure area 30, and its peripheral part forms back pressure chamber 29.Therefore, only in the situation that the back pressure chamber side opening end 81b of back pressure chamber 29 sides in the first path 81 is positioned at the peripheral part of sealed member 78, high-pressure area 30 and back pressure chamber 29 are communicated with by the first path 81.And the machine oil 6 of high pressure 30 is fed into back pressure chamber 29 from the high-pressure area.What can supply with machine oil 6 is the state of Figure 10 (a).
According to above-mentioned structure, 30 is to be undertaken by connection intermittently to back pressure chamber 29 supply machine oil 6 from the high-pressure area.Therefore, by adjusting its Lifetime, just can supply with appropriate machine oil 6 to back pressure chamber 29.And, the slide part of machine oil 6 lubricated rotation limting mechanisms 14, and help to apply back pressure on rotation vortex 13 in back pressure chamber 29.
In addition, on rotation vortex 13, the second path 82 that is used for being communicated with back pressure chamber 29 and pressing chamber 15 is set.Simultaneously, the pressing chamber side opening end 82b that is provided with pressing chamber 15 sides that make the second path 82 of rotatablely moving by rotation vortex 13 on the scroll wrap groove bottom 12c of fixed scroll 12 is the recess 84 of opening off and on.
That is, when the state of Figure 10 (a), recess 84 openings that the pressing chamber side opening end 82b in the second path 82 arranges to the scroll wrap groove bottom 12c in fixed scroll 12.And because recess 84 is communicated with pressing chamber 15b, therefore, back pressure chamber 29 is communicated with pressing chamber 15b.And the machine oil 6 of back pressure chamber 29 is fed into pressing chamber 15b, helps to prevent the leakage between pressing chamber 15 and helps the lubricated of slide part.
On the other hand, when the state of Figure 10 (b), pressing chamber side opening end 82b is not to recess 84 openings, and therefore, back pressure chamber 29 is not communicated with pressing chamber 15b.
According to above-mentioned structure, due to back pressure chamber 29 and pressing chamber 15 connection off and at short notice, therefore, be easy to the pressure of back pressure chamber 29 is remained the few authorized pressure of change.In addition, because back pressure chamber 29 only is communicated with pressing chamber 15b in a pair of pressing chamber 15, therefore, the pressure of back pressure chamber 29 becomes always high than the pressure of pressing chamber 15 state.Therefore, the adverse current of back pressure chamber 29 can be prevented from flowing to from pressing chamber 15, thereby high efficiency can be realized.
Have again, as shown in Figure 10 (a), be provided with Third Road footpath 83 at rotation vortex 13, the different pressing chamber 15a of pressing chamber 15b that Third Road footpath 83 is used for being communicated with high-pressure area 30 and is communicated with from the second path 82.Simultaneously, at the scroll wrap front end 13d of rotation vortex 13, recess 85 is set, so that the pressing chamber side opening end 83b of pressing chamber 15 sides in Third Road footpath 83 and pressing chamber 15a are communicated with.
Like this, can supply with from back pressure chamber 29 to pressing chamber 15b appropriate machine oil 6 by the second path 82, then have, can be from the high-pressure area 30 supply with appropriate machine oil 6 to pressing chamber 15a by Third Road footpath 83.So just can realize efficient and the high scroll compressor of reliability.
In addition, by the setting position of adjustment recess 85 and the degree of depth of shape or recess 85, can supply with the machine oil 6 of optimal dose.
Although in the above-described embodiments, adopted the second path 82 to be communicated with pressing chamber 15b, the structure that Third Road footpath 83 is communicated with pressing chamber 15a, but, even adopt the second path 82 to be communicated with pressing chamber 15a, the structure that Third Road footpath 83 is communicated with pressing chamber 15b also has same effect certainly.
(embodiment 4)
The fourth embodiment of the present invention is described.Figure 12 is the sectional view of the compressing mechanism of the scroll compressor in the fourth embodiment of the present invention.In the present embodiment, partly describe for the invention different from embodiment 3.That is, in Figure 12, use identical mark for the member identical with Figure 10, the description thereof will be omitted.In embodiment 5 described later too.
As shown in figure 12, be provided with Third Road footpath 83 at rotation vortex 13, the different pressing chamber 15a of pressing chamber 15b that Third Road footpath 83 is used for being communicated with high-pressure area 30 and is communicated with from the second path 82.Simultaneously, at the scroll wrap groove bottom 12c of fixed scroll 12, the pressing chamber side opening end 83b recess 86 of opening off and on that is used for making by rotatablely moving Third Road footpath 83 is set.
That is, when the state of Figure 12 (a), recess 86 openings that the pressing chamber side opening end 83b in Third Road footpath 83 arranges to the scroll wrap groove bottom 12c in fixed scroll 12.And because recess 86 is communicated with pressing chamber 15a, therefore, high-pressure area 30 is communicated with pressing chamber 15a.And the machine oil 6 of high-pressure area 30 is fed into pressing chamber 15a, helps to prevent the leakage between pressing chamber 15 and helps the lubricated of slide part.
On the other hand, when the state of Figure 12 (b), pressing chamber side opening end 83b is not to recess 86 openings, and therefore, high-pressure area 30 is not communicated with pressing chamber 15a.
According to this structure, by the second path 82, can supply with appropriate machine oil 6 to pressing chamber 15b, and, by Third Road footpath 83, also can supply with machine oil 6 to pressing chamber 15a.At this moment, shape, position and the degree of depth of the recess 86 that arranges by the scroll wrap groove bottom 12c that is adjusted at fixed scroll 12, the pressing chamber side opening end 83b that can control Third Road footpath 83 is communicated with the path resistance in required time and Third Road footpath 83 with pressing chamber 15a.Control according to this, can supply with appropriate machine oil 6 to pressing chamber 15a, and can realize efficient scroll compressor.
(embodiment 5)
The fifth embodiment of the present invention is described.Figure 13 is the sectional view of the compressing mechanism of the scroll compressor in the fifth embodiment of the present invention.
As shown in figure 13, the pressing chamber side opening end 87b of pressing chamber 15 sides in Third Road footpath 87 is set, the different pressing chamber 15a of pressing chamber 15b that this pressing chamber side opening end 87b is used for being communicated with high-pressure area 30 and is communicated with from the second path 82 at the scroll wrap groove bottom 13c of rotation vortex 13.
That is, when the state of Figure 13 (a), the pressing chamber side opening end 87b in Third Road footpath 87 is to pressing chamber 15a opening, and therefore, high-pressure area 30 is communicated with pressing chamber 15a.And the machine oil 6 of high-pressure area 30 is fed into pressing chamber 15a, helps to prevent the leakage between pressing chamber 15 and helps the lubricated of slide part.
On the other hand, when the state of Figure 13 (b), be fixed scroll wrap front end 12d or the runner plate 12a of vortex 12 of the pressing chamber side opening end 87b in Third Road footpath 87 stops up, and not to pressing chamber 15a opening, therefore, high-pressure area 30 is not communicated with pressing chamber 15a.
According to this structure, owing to supplying with appropriate machine oil 6 by the second path 82 to pressing chamber 15b, and supply with machine oil 6 to pressing chamber 15a off and on by Third Road footpath 87, therefore, can realize efficient scroll compressor.
In addition, therefore the scroll wrap 13b owing to not processing rotation vortex 13, can simplify processing, and the rigidity that can suppress to rotate the scroll wrap 13b of vortex 13 descends.
In addition, make the high-pressure area side opening end 87a of high-pressure area 30 sides in the high-pressure area side opening end 81a of high-pressure area 30 sides in the first path 81 and Third Road footpath 87 be positioned at same position.Like this, just can simplify processing, and can unify the required parts in each path, reduce number of components.In addition, because machining location reduces, therefore, the rigidity that can suppress the rotation vortex 13 that causes because of processing descends.
But, in the situation that adopt high-pressure refrigerant for example carbon dioxide be used as working fluid, according to scroll compressor of the present invention, also can supply with appropriate machine oil.
(embodiment 6)
The sixth embodiment of the present invention is described.Figure 14 is the sectional view of the compressing mechanism of the scroll compressor in the sixth embodiment of the present invention.Figure 15 is the fixed scroll and the sectional elevation that rotates under the intermeshing state of vortex of the compressing mechanism of Figure 14.The present embodiment and embodiment 1 and embodiment 2 are similar, in embodiment 6, partly describe for the invention different from embodiment 1 and embodiment 2.That is, in Figure 14, use identical mark for the member identical with Fig. 2 and Fig. 7, and the description thereof will be omitted.
As shown in figure 14, be to and from sealed member 78 by the back pressure chamber side opening end 54b that makes the first path 54, and high-pressure area 30 and back pressure chamber 29 are communicated with off and on.
In addition, form on the thrust face 12f of fixed scroll 12 and have to the second path 57 of the back pressure chamber side opening end 57a of back pressure chamber 29 openings.Along with rotatablely moving of rotation vortex 13, this back pressure chamber side opening end 57a is opened and closed by the thrust face 13f of rotation vortex 13, thereby back pressure chamber 29 and pressing chamber 15 are communicated with off and on.
That is, Figure 15 (a) is the detailed maps of the back pressure chamber side opening end 57a in the second path 57 when being communicated with back pressure chamber 29, and Figure 15 (b) is the detailed maps of the back pressure chamber side opening end 57a in the second path 57 when not being communicated with back pressure chamber 29.
According to this structure, the machine oil 6 that enters back pressure chamber 29 by the first path 54 is directed to pressing chamber 15 by the back pressure chamber side opening end 57a in the second path 57, can bring into play sealing when improving compression and the effect of lubricity.
As illustrated in embodiment 1, in the situation that 30 flow into the oil level of machine oil 6 of back pressure chambers 29 than Duoing by the oil level of the second path 57 machine oil 6 of 15 outflows from back pressure chamber 29 to pressing chamber by the first path 54 from the high-pressure area, superfluous machine oil 6 is fed into back pressure chamber 29, therefore, pressure raises.As a result, superfluous pressure just is applied on rotation vortex 13, and thrust load increases, and exists to cause that mis-behave and reliability worsen such problem.
Therefore, in the scroll compressor of the present embodiment, the first path 54 and the second path 57 are communicated with off and on.Like this, can to the machine oil 6 of back pressure chamber 29 excess supplies, therefore, can not prevent the abnormal rising of pressure.Its result can prevent that superfluous back pressure is applied on rotation vortex 13, and can apply stable back pressure.
In addition, can control to be communicated with ratio the fuel delivery of the 30 supply back pressure chambers 29 from the high-pressure area.Therefore, need not the throttling of pore etc., just can eliminate foreign matter to snap in and stop up, and a kind of scroll compressor of realizing efficiently reaching high reliability can be provided.
The connection ratio in the second path 57 is more than connection ratio equal in the first path 54.Like this, in once rotating, flow into the interval with the machine oil of the 30 inflow back pressure chambers 29 from the high-pressure area and compare, it is longer that the machine oil of machine oil 15 outflows from back pressure chamber 29 to pressing chamber flow out the interval, and therefore, the pressure of back pressure chamber 29 can not raise singularly.That is, owing to not applying superfluous back pressure on rotation vortex 13, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, when only being communicated to pressing chamber 25 in the second path 57 from back pressure chamber 29, with the first path 54, high-pressure area 30 is communicated with back pressure chamber 29.Like this, during the 29 supply machine oil 6 from high-pressure area 30 to back pressure chamber, back pressure chamber 29 necessarily is communicated with pressing chamber 15.Therefore, machine oil 6 can not be trapped in back pressure chamber 29, and back pressure can not raise singularly.That is, owing to not applying superfluous back pressure on rotation vortex 13, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
In addition, adopt the structure that the second path 57 is arranged on back pressure chamber 29 and suction port 17 disconnected positions.According to this structure, back pressure chamber 29 only is communicated with pressing chamber 15, and therefore, the change of every rotation back pressure once is all little, so just can set at an easy rate the back pressure of regulation for, therefore, can provide a kind of scroll compressor of realizing efficiently reaching high reliability.
(embodiment 7)
The seventh embodiment of the present invention is described.Figure 16 and Figure 17 are the sectional views of the compressing mechanism of the scroll compressor in the seventh embodiment of the present invention, and Figure 16 represents interior connection, and Figure 17 represents outer connection.Figure 18 is the fixed scroll and the plan view that rotates under the intermeshing state of vortex of the compressing mechanism of Figure 16 and Figure 17, and Figure 19 is the fixed scroll and the sectional elevation that rotates under the intermeshing state of vortex of the compressing mechanism of Figure 16 and Figure 17.
The present embodiment is similar to Example 1, in embodiment 7, partly describes for the invention different from embodiment 1.That is, in Figure 16 and Figure 17, use identical mark for the member identical with Fig. 2, and the description thereof will be omitted.
As Figure 16 and shown in Figure 17, in the pressing chamber 15 that is formed by fixed scroll 12 and rotation vortex 13, have the outside pressing chamber 95a that forms at the scroll wrap outer wall side that rotates vortex 13 and the inboard compression chamber 95b that forms in scroll wrap inwall side, the suction volume of the suction volume ratio inboard compression chamber 95b of outside pressing chamber 95a is large.And as illustrated in Figure 33, Figure 34, inboard compression chamber 114b is faster than the rate of pressure rise of outside pressing chamber 114a to the rate of pressure rise of crankangle.As a result, increased by the inboard compression chamber 114b-1 of scroll wrap side gap D2 separation and the pressure difference of inboard compression chamber 114b-2.
Therefore, compare with the scroll wrap side gap D1 of the outside pressing chamber 95a identical with outside pressing chamber 114a, the scroll wrap side gap D2 of the inboard compression chamber 95b identical with inboard compression chamber 114b more easily leaks working fluid.
Therefore, in the scroll compressor of the present embodiment, consisted of by the first path 91 and the 4th path 92 that form rotation vortex 13 from the oil supply path of oil conservator 20 pressing chamber 95b guiding to the inside.And, set the sectional area of inboard compression chamber connection recess 99b larger than the sectional area of outside pressing chamber connection recess 99a.Like this, by supplying with machine oil to the large inboard compression chamber 95b of rate of pressure rise energetically, can suppress working fluid and leak to the inboard compression chamber 95b-2 that the next one forms from the inboard compression chamber 95b-1 of previous formation.
And in crankangle shown in Figure 16 (crankangle shown in Figure 18 (B), (C), (D)), the back pressure chamber side opening end 91b in the first path 91 is 30 openings to the high-pressure area.Therefore, the pressure difference of the high-pressure area side opening end 91a in the first path 91 and back pressure chamber side opening end 91b disappears, and therefore, the machine oil 6 in the first path 91 can not move.
Relative with it, in crankangle shown in Figure 17 (crankangle shown in Figure 18 (A)), the back pressure chamber side opening end 91b in the first path 91 across sealed member 78 to back pressure chamber 29 openings.The pressure of back pressure chamber 29 is retained as high pressure and sucks the intermediate pressure of pressing, and is therefore, low than the pressure of high-pressure area 30.Therefore, due to this pressure difference, machine oil 6 is 30 inflow back pressure chambers 29 from the high-pressure area.
That is, according to crankangle, the back pressure chamber side opening end 91b in the first path 91 is to and from sealed member 78, thereby repeats to realize non-connected state and the connected state of high-pressure area 30 and back pressure chamber 29.Therefore, can regulate the fuel delivery of the machine oil 6 of supplying with back pressure chamber 29 or inboard compression chamber 95b.Therefore, can enlarge the adjustment range of the fuel delivery in pressing chamber 95b to the inside.Therefore, not only can suppress to cause viscosity loss to increase because of the machine oil 6 of excess supply in pressing chamber 95b to the inside, and can improve the efficient of compressor.
30 adjustment ranges that flow into the machine oil 6 of back pressure chamber 29 also enlarge from the high-pressure area, can reduce back pressure.Therefore, can alleviate the pressing force of 13 pairs of fixed scroll 12 of rotation vortex.Therefore, the thrust face 13f of rotation vortex 13 and the slippage loss of scroll wrap front end 13d not only can be alleviated, and the efficient of compressor can be improved.
In addition, even exist the 4th path 92 not to be communicated with the situation of back pressure chamber 29 and inboard compression chamber 95b in the once rotation of crankshaft, be communicated with off and on by making the first path 91, also can suppress the rising of superfluous back pressure, improve the reliability of compressing mechanism 2.
Have again, owing to can enough Lifetimes controlling from the high-pressure area 30 oil levels that flow into back pressure chambers 29, therefore, needn't arrange in the first path 91 and be used for the restriction of adjusting oil mass, foreign matter not only can be avoided snapping in restriction, and the reliability of compressing mechanism 2 can be improved.
Below, the machine oil 6 of inflow back pressure chamber 29 arrives the pressing chamber side opening end 92b in the 4th path 92 from the back pressure chamber side opening end 92a in the 4th path 92 through the 4th path 92.And machine oil 6 is communicated with recess 99a through inboard compression chamber connection recess 99b and the outside pressing chamber that the scroll wrap groove bottom 12c in fixed scroll 12 arranges, and is assigned to inboard compression chamber 95b and outside pressing chamber 95a, then flows into each pressing chamber.
Namely, in crankangle shown in Figure 16 (crankangle shown in Figure 19 (C)), the pressing chamber side opening end 92b in the 4th path 92 pressing chamber to the inside is communicated with recess 99b opening, back pressure chamber 29 be the state that is communicated with inboard compression chamber 95b (namely, interior connection), machine oil 6 is fed into inboard compression chamber 95b.
Relative with it, in crankangle shown in Figure 17 (crankangle shown in Figure 19 (A)), the pressing chamber side opening end 92b in the 4th path 92 pressing chamber laterally is communicated with recess 99a opening, back pressure chamber 29 be the state that is communicated with outside pressing chamber 95a (namely, outer connection), machine oil 6 is fed into outside pressing chamber 95a.
In addition, adopt the large formation of sectional area of the sectional area ratio outside pressing chamber connection recess 99a of inboard compression chamber connection recess 99b.Therefore, along with the rotation of rotation vortex 13, the opening time of pressing chamber side opening end 92b and inboard compression chamber connection recess 99b is longer than the opening time of pressing chamber side opening end 92b and outside pressing chamber connection recess 99a.Therefore, the fuel delivery that supplies to inboard compression chamber 95b is more than the fuel delivery that supplies to outside pressing chamber 95a.According to this structure, not only can be energetically supply with machine oil 6 to the large inboard compression chamber 95b of rate of pressure rise, and can suppress working fluid and leak to the inboard compression chamber 95b-2 that the next one forms from the inboard compression chamber 95b-1 of previous formation.
In other words, no matter in inboard compression chamber 95b or outside in side pressing chamber 95a, can effectively suppress working fluid and leak from scroll wrap side gap D1 and D2 between the pressing chamber 15 of the pressing chamber 15 of previous inclosure working fluid and next inclosure working fluid, and can suppress to recompress the compression efficiency decline that causes.
But sectional area and the aperture position of the back pressure chamber side opening end 91b by changing the first path 91 can be controlled from the high-pressure area 30 fuel deliveries of supplying with to back pressure chamber 29.And the sectional area of the sectional area by changing the 4th path 92 and the pressing chamber side opening end 92b in the 4th path 92 can be controlled from back pressure chamber 29 fuel delivery supplied with of pressing chamber 95b and outside pressing chamber 95a to the inside.
In addition, in the crankangle shown in Figure 19 (B), (D), pressing chamber connection recess 99b and outside pressing chamber are not communicated with recess 99a opening to the pressing chamber side opening end 92b in the 4th path 92 to the inside.That is, back pressure chamber 29 is not communicated with inboard compression chamber 95b and outside pressing chamber 95a.Therefore, not pressing chamber 95b and outside pressing chamber 95a fuel feeding to the inside.Therefore, the viscosity loss that can suppress too much to cause because of fuel delivery increases, thereby can improve the efficient of compressor.
Have again, although the formation of the present embodiment is to control the size of the fuel delivery of inboard compression chamber 95b and outside pressing chamber 95a by the size of the sectional area of inboard compression chamber connection recess 99b and outside pressing chamber connection recess 99a, but, also can adopt the depth and place that is communicated with recess 99a by changing inboard compression chamber connection recess 99b and outside pressing chamber to control the formation of the size of fuel delivery.
(embodiment 8)
The eighth embodiment of the present invention is described.Figure 20 and Figure 21 are the sectional views of the compressing mechanism of the scroll compressor in the eighth embodiment of the present invention.Have, Figure 20 represents interior connection again, and Figure 21 represents outer connection.Figure 22 is the fixed scroll and the sectional elevation that rotates under the intermeshing state of vortex of the scroll compressor of Figure 20 and Figure 21.
In Figure 20 and Figure 21, except to the pressing chamber side opening end in the 4th relevant path 92 of pressing chamber 15 fuel feeding, all the other are all identical with embodiment 7, therefore, for the member identical with Figure 16, use identical mark, only the pressing chamber side opening end in the 4th path 92 described all the other omissions.
As shown in figure 20, in the present embodiment, the pressing chamber side opening end in the 4th path 92 is by the inboard compression chamber side opening end 92c that forms at rotation vortex 13 (scroll wrap groove bottom 13c) and outside pressing chamber side opening end 92d formation.The machine oil 6 that flows into back pressure chamber 29 through the 4th path 92, is assigned to inboard compression chamber side opening end 92c and the outside pressing chamber side opening end 92d in the 4th path 92 from the back pressure chamber side opening end 92a in the 4th path 92.
And in crankangle shown in Figure 20 (crankangle of Figure 22 (C), (D)), the inboard compression chamber side opening end 92c in the 4th path 92 is pressing chamber 95b opening to the inside.Therefore, back pressure chamber 29 is the states (that is, interior connection) that are communicated with inboard compression chamber 95b, and machine oil 6 is fed into inboard compression chamber 95b from back pressure chamber 29.
Relative with it, in crankangle shown in Figure 21 (crankangle shown in Figure 22 (A)), the outside pressing chamber side opening end 92d in the 4th path 92 is pressing chamber 95a opening laterally.Therefore, back pressure chamber 29 is the states (that is, outer connection) that are communicated with outside pressing chamber 95a, and machine oil 6 is fed into outside pressing chamber 95a from back pressure chamber 29.
In addition, adopt the large formation of sectional area of the sectional area ratio outside pressing chamber side opening end 92d of inboard compression chamber side opening end 92c.Therefore, the fuel delivery that supplies to inboard compression chamber 95b is more than the fuel delivery that supplies to outside pressing chamber 95a.According to this structure, not only can be energetically supply with machine oil 6 to the large inboard compression chamber 95b of rate of pressure rise, and can suppress working fluid and leak to the inboard compression chamber 95b-2 that the next one forms from the inboard compression chamber 95b-1 of previous formation.
In other words, no matter in inboard compression chamber 95b or outside in side pressing chamber 95a, can effectively suppress working fluid and leak from scroll wrap side gap D1 and D2 between the pressing chamber 15 of the pressing chamber 15 of previous inclosure working fluid and next inclosure working fluid, and can suppress to recompress the compression efficiency decline that causes.
But the inboard compression chamber side opening end 92c by changing the 4th path 92 and the sectional area of outside pressing chamber side opening end 92d can be controlled from back pressure chamber 29 fuel delivery supplied with of pressing chamber 95b and outside pressing chamber 95a to the inside.
In addition, in the crankangle shown in Figure 22 (B), the inboard compression chamber side opening end 92c in the 4th path 92 and outside pressing chamber side opening end 92d vortex 12 and the scroll wrap front end 12d sealing that is fixed.Therefore, back pressure chamber 29 is not communicated with inboard compression chamber 95b and outside pressing chamber 95a, thus not pressing chamber 95b and outside pressing chamber 95a fuel feeding to the inside.Therefore, the viscosity loss that can suppress too much to cause because of fuel delivery increases, thereby can improve the efficient of compressor.
(embodiment 9)
The ninth embodiment of the present invention is described.Figure 23 and Figure 24 are the sectional views of the compressing mechanism of the scroll compressor in the ninth embodiment of the present invention, and Figure 23 represents interior connection, and Figure 24 represents outer connection.Figure 25 is the fixed scroll and the sectional elevation that rotates under the intermeshing state of vortex of the scroll compressor of Figure 23 and Figure 24.
In Figure 23 and Figure 24, except to the 5th relevant path 93 of suction chamber 96 fuel feeding, all the other are all identical with embodiment 7, therefore, for the member identical with Figure 16, use identical mark, only the 5th path 93 are described all the other omissions.
As shown in figure 23, in the present embodiment, at rotation vortex 13, the pressing chamber 15 (that is, suction chamber 96) that 93, the five paths 93, the 5th path are used for being communicated with back pressure chamber 29 and are communicated with suction port 17 is set.One end in the 5th path 93 is back pressure chamber side opening end 93a, always to back pressure chamber 29 openings.The other end is suction chamber side opening end 93b, is arranged on the scroll wrap front end 13d of rotation vortex 13.And the spot facing 97 of suction chamber side opening end 93b by arranging at scroll wrap front end 13d is always to suction chamber 96 openings.
And, the machine oil 6 that flows into back pressure chamber 29 from the back pressure chamber side opening end 93a in the 5th path 93 through the 5th path 93, then from the suction chamber side opening end 93b in the 5th path 93 through flowing into suction chamber 96 after spot facing 97.
Too, that is, in all crankangles shown in Figure 25 (A) to (D), the suction chamber side opening end 93b in the 5th path 93 is the states that always are communicated with by spot facing 97 and suction chamber 96 in Figure 23 and Figure 24.Like this, machine oil 6 always is fed into suction chamber 96.
Therefore, always be fed into suction chamber 96 from back pressure chamber 29 by machine oil 6, and make the effect of machine oil 6 performance sealing, can reduce the leakage of the working fluid in the suction stroke of the pressing chamber 15 (that is, suction chamber 96) that is communicated with suction port 17.By reducing this leakage, can improve volumetric efficiency, therefore, can improve the efficient of compressor.
In addition, by the sectional area that changes the 5th path 93, the sectional area of back pressure chamber side opening end 93a, the sectional area of suction chamber side opening end 93b and sectional area and the degree of depth of aperture position and spot facing 97, can control the oil mass of giving that supplies to suction chamber 96 from back pressure chamber 29.In addition, also spot facing 97 can be set.
Have, Figure 26 and Figure 27 are the sectional views of the compressing mechanism of the scroll compressor in other embodiments of the invention again.
As shown in the figure, also can adopt following formation: the suction chamber side opening end 93b that makes the 5th path 93 suction chamber laterally is communicated with recess 98b or inboard suction chamber is communicated with recess 98a opening, makes suction chamber 96 connections of the pressing chamber 15 that back pressure chamber 29 is communicated with conduct and suction port 17 off and on.
In the case, only suction chamber side opening end 93b laterally suction chamber be communicated with during recess 98b or inboard suction chamber be communicated with the crankangle of recess 98a opening, machine oil 6 is fed into outside suction chamber 96b or inboard suction chamber 96a, therefore, can be from back pressure chamber 29 to suction chamber 96 oil supply off and on.
In addition, according to diameter and length, the sectional area of suction chamber side opening end 93b and the shape that aperture position, outside suction chamber are communicated with recess 98b and inboard suction chamber connection recess 98a in the 5th path 93, can control the fuel delivery that supplies to suction chamber 96 by enough Lifetimes.Therefore, the adjustment range that supplies to the fuel delivery of the machine oil 6 in suction chamber 96 enlarges, and not only can suppress to heat because sucking the volumetric efficiency deterioration that causes, and can also improve the efficient of compressor.
In addition, can be also to use Fig. 7 and Figure 20 to Figure 22 is illustrated, the oil supply path that consists of according to method shown in embodiment 2 and embodiment 8 as oil supply at the intermittence path in the 5th path 93 of the present embodiment.
(embodiment 10)
The one 0 embodiment of the present invention is described.Figure 28 and Figure 29 are the sectional views of the compressing mechanism of the scroll compressor in the one 0 embodiment of the present invention, and Figure 28 represents interior connection, and Figure 29 represents outer connection.
In Figure 28 and Figure 29, except to the 6th relevant path 94 of suction chamber 96 fuel feeding, all the other are all identical with embodiment 7, therefore, for the member identical with Figure 16, use identical mark, only the 6th path 94 are described all the other omissions.
As shown in figure 28, in the present embodiment, in rotation vortex 13, the pressing chamber 15 (that is, suction chamber 96) that 94, the six paths 94, the 6th path are used for being communicated with high-pressure area 30 and are communicated with suction port 17 is set.One end in the 6th path 94 is high-pressure area side opening end 94a, always 30 openings to the high-pressure area.The other end is suction chamber side opening end 94b, is arranged on the scroll wrap front end 13d of rotation vortex 13.The spot facing 97 of suction chamber side opening end 94b by arranging at scroll wrap front end 13d is always to suction chamber 96 openings.
And the machine oil 6 that flows into high-pressure area 30 through the 6th path 94, then flows into suction chambers 96 from the suction chamber side opening end 94b in the 6th path 94 through spot facing 97 from the high-pressure area side opening end 94a in the 6th path 94.
In Figure 28 and the present embodiment shown in Figure 29, also similarly to Example 9, in all crankangles shown in Figure 25 (A) to (D), the suction chamber side opening end 94b in the 6th path 94 is the states that always are communicated with suction chamber 96 by spot facing 97.Like this, the machine oil 6 of high pressure just always is fed into suction chamber 96.
Therefore, the machine oil 6 of high pressure always 30 is supplied to suction chamber 96 from the high-pressure area, and like this, the greasy property during the large high loaded process of differential pressure improves.And due to above the scroll wrap that can suppress to rotate vortex 13 and fixed scroll 12 and the inordinate wear of side, therefore, the reliability of compressor improves.
In addition, by the sectional area that changes the 6th path 94, the sectional area of high-pressure area side opening end 94a, the sectional area of suction chamber side opening end 94b and sectional area and the degree of depth of aperture position and spot facing 97, and can control from the high-pressure area 30 supply to suction chamber 96 to oil mass.In addition, also can adopt the structure that spot facing 97 is not set.
Have, Figure 30 and Figure 31 are the sectional views of the compressing mechanism of the scroll compressor in other embodiments of the invention again.
As shown in the figure, also can adopt following formation: the suction chamber side opening end 94b that makes the 6th path 94 suction chamber laterally is communicated with recess 98b or inboard suction chamber is communicated with recess 98a opening, makes suction chamber 96 connections of the pressing chamber 15 that high-pressure area 30 is communicated with conduct and suction port 17 off and on.
In the case, only suction chamber side opening end 94b laterally suction chamber be communicated with during recess 98b or inboard suction chamber be communicated with the crankangle of recess 98a opening, machine oil 6 is fed into outside suction chamber 96b or inboard suction chamber 96a, therefore, can be from the high-pressure area 30 to suction chamber 96 oil supply off and on.
In addition, by diameter and length, the sectional area of suction chamber side opening end 94b and the shape that aperture position, outside suction chamber are communicated with recess 98b and inboard suction chamber connection recess 98a in the 6th path 94, can control the fuel delivery that supplies to suction chamber 96 with Lifetime.Therefore, the adjustment range that supplies to the fuel delivery of the machine oil 6 in suction chamber 96 enlarges, and can suppress to heat because sucking the volumetric efficiency deterioration that causes, and can improve the efficient of compressor.
Having, can be also to use Fig. 7 and Figure 20 to Figure 22 is illustrated, the oil supply path that consists of according to method shown in embodiment 2 and embodiment 8 as oil supply at the intermittence path in the 6th path 94 of the present embodiment again.
Have again, in the situation that adopt high-pressure refrigerant for example carbon dioxide be used as working fluid, according to scroll compressor of the present invention, also can effectively suppress working fluid from the circinate scroll wrap side slot leakage between pressing chamber, and can apply stable back pressure.
The present invention is as follows in industrial practicability:
As mentioned above, scroll compressor of the present invention is by making machine oil enter back pressure chamber from the high-pressure area off and on, and enters pressing chamber from back pressure chamber, so just can apply stable back pressure, therefore, leakage paths between the considering compression chamber carries out effective and required MIN fuel feeding, so just can guarantee sealing, suppressing machine oil snaps in, therefore, working fluid is not limited to refrigeration agent, also can be applied in the purposes of the scroll fluid machines such as air eddy compressor, vacuum pump, scroll expansion machine.
Claims (32)
1. screw compressor, make fixed scroll and the engagement of rotation vortex and between formation discharge chambe from runner plate erect whirlpool shape scroll wrap, the back side at described rotation vortex forms high-pressure area and back pressure chamber, by the formed restriction of rotation limiting mechanism, described rotation vortex is rotated along the radius of turn of circular orbit with regulation, thereby described discharge chambe is moved towards center while changing volume, suck working fluid from the suction inlet that forms in described fixed scroll, a series of actions of compressing, discharging, it is characterized in that
Be provided with: the first path that is communicated with off and on described high-pressure area and described back pressure chamber; The second path that is communicated with off and on described back pressure chamber and described pressing chamber,
In the once rotation of described rotation vortex, compare from the interval that described high-pressure area is communicated to described back pressure chamber with described the first path, with described the second path from the interval that described back pressure chamber is communicated to described pressing chamber be set as its equal more than.
2. scroll compressor as claimed in claim 1, is characterized in that, the connection ratio that makes described the second path with respect to the connection ratio in described the first path for more than equal.
3. scroll compressor as claimed in claim 1, is characterized in that, when only being communicated with in described the second path, described the first path is communicated with.
4. scroll compressor as claimed in claim 1, is characterized in that, make described back pressure chamber by described the second path only with a pair of described pressing chamber in one be communicated with.
5. scroll compressor as claimed in claim 1, is characterized in that, makes the minimal path sectional area in minimal path sectional area ratio described the first path in described the second path large.
6. scroll compressor as claimed in claim 1, is characterized in that, the described back side configuration sealed member at described rotation vortex is separated into described high-pressure area and described back pressure chamber with described sealed member.
7. scroll compressor as claimed in claim 6, is characterized in that, an opening end in described the first path comes and goes on described sealed member.
8. scroll compressor as claimed in claim 1, it is characterized in that, described the second path consists of by the first control path that then is communicated with the scroll wrap front end of described rotation vortex through the inside of described rotation vortex from described back pressure chamber and at the recess that the scroll wrap groove bottom of described fixed scroll forms
Rotatablely move by described, described first controls the path to described recess opening off and on.
9. scroll compressor as claimed in claim 1, is characterized in that, described the second path is by consisting of through the second control path that then inside of described rotation vortex is communicated with the thrust face of described rotation vortex from described back pressure chamber,
Rotatablely move by described, described second controls the path to the vortex teeth groove of described fixed scroll opening off and on.
10. scroll compressor as claimed in claim 1, is characterized in that, uses the refrigerator oil of intermiscibility.
11. scroll compressor as claimed in claim 1 is characterized in that, the Third Road footpath that is communicated with described high-pressure area and described pressing chamber is set.
12. scroll compressor as claimed in claim 11, it is characterized in that, the pressing chamber that forms outside the scroll wrap of described rotation vortex is as outside pressing chamber, the pressing chamber that forms in the inboard of described rotation vortex is as the inboard compression chamber, described the second path is communicated with the inboard compression chamber, and described Third Road footpath is communicated with outside pressing chamber, perhaps, described the second path is communicated with described outside pressing chamber, and described Third Road footpath is communicated with described inboard compression chamber.
13. scroll compressor as claimed in claim 11 is characterized in that, described Third Road footpath is set in the inside of described rotation vortex, and the opening end of the described pressing chamber side in described Third Road footpath is set at the scroll wrap front end of described rotation vortex.
14. scroll compressor as claimed in claim 13 is characterized in that, the recess that always is communicated with described pressing chamber in described opening end setting.
15. scroll compressor as claimed in claim 11 is characterized in that, makes described Third Road footpath be communicated with off and on described high-pressure area and described pressing chamber.
16. scroll compressor as claimed in claim 15, it is characterized in that, the opening end of the described pressing chamber side in described Third Road footpath is set at the scroll wrap front end of described vortex, scroll wrap groove bottom in described fixed scroll arranges recess, so that described opening end is by the opening off and on that rotatablely moves of described rotation vortex.
17. scroll compressor as claimed in claim 11 is characterized in that, described Third Road footpath is set in the inside of described rotation vortex,
The opening end of the described pressing chamber side in described Third Road footpath is set in the scroll wrap groove bottom of described rotation vortex.
18. scroll compressor as claimed in claim 11 is characterized in that, makes the opening end of described high-pressure area side in the opening end of described high-pressure area side in described the first path and described Third Road footpath at same position.
19. scroll compressor as claimed in claim 1 is characterized in that, described the second path is set on the thrust face of described fixed scroll.
20. scroll compressor, make fixed scroll and the engagement of rotation vortex and between formation pressing chamber from runner plate erect whirlpool shape scroll wrap, described pressing chamber has in the outside pressing chamber of the scroll wrap outside formation of described rotation vortex and the inboard compression chamber that forms in the inboard of described rotation vortex, the suction volume of the described inboard compression of the suction volume ratio chamber of described outside pressing chamber is large, the back side at described rotation vortex forms high-pressure area and back pressure chamber, rotate along the turning radius of circular orbit with regulation by described rotation vortex, thereby described pressing chamber is moved towards the center while changing volume, suck working fluid from the suction port that forms in described fixed scroll, after being enclosed in it in described pressing chamber, compress, the a series of actions of discharging, it is characterized in that,
Be provided with: the first path that is communicated with described high-pressure area and described back pressure chamber; The 4th path of the pressing chamber that is communicated with described back pressure chamber and is not communicated with described suction port,
The pressing chamber side opening end in described at least the 4th path is opening off and on to described outside pressing chamber or described inboard compression chamber,
Supply to described inboard compression chamber always to oil mass than supplying to the total many to oil mass of described outside pressing chamber.
21. scroll compressor as claimed in claim 20 is characterized in that, the described pressing chamber side opening end in described the 4th path is set at the scroll wrap front end of described rotation vortex,
Along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is at the set recess of the scroll wrap groove bottom of fixed scroll opening off and on.
22. scroll compressor as claimed in claim 20 is characterized in that, the described pressing chamber side opening end in a plurality of described the 4th paths is set on the thrust face of the scroll wrap groove bottom of described rotation vortex or described rotation vortex,
Along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is at the scroll wrap front end of described pressing chamber and described fixed scroll or periodically move on the thrust face of described pressing chamber and described fixed scroll, thereby off and on to described pressing chamber opening.
23. scroll compressor as claimed in claim 20 is characterized in that, the back pressure chamber side opening end in described the first path is arranged on the described back side of described rotation vortex and comes and goes on the sealed member of separating described high-pressure area and described back pressure chamber.
24. scroll compressor as claimed in claim 20 is characterized in that, the 5th path is set, the pressing chamber that the 5th path is communicated with described back pressure chamber and is communicated with described suction port.
25. scroll compressor as claimed in claim 20 is characterized in that, the 6th path is set, the pressing chamber that the 6th path is communicated with described high-pressure area and is communicated with described suction port.
26. scroll compressor as claimed in claim 24 is characterized in that, the pressing chamber side opening end in described the 5th path is set at the scroll wrap front end of described rotation vortex.
27. scroll compressor as claimed in claim 25 is characterized in that, the pressing chamber side opening end in described the 6th path is set at the scroll wrap front end of described rotation vortex.
28. scroll compressor as claimed in claim 24 is characterized in that, the pressing chamber side opening end in described the 5th path is set at the scroll wrap front end of described rotation vortex,
Along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is to the recess that arranges in the scroll wrap groove bottom of described fixed scroll opening off and on.
29. scroll compressor as claimed in claim 25 is characterized in that, the pressing chamber side opening end in described the 6th path is set at the scroll wrap front end of described rotation vortex,
Along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is to the recess that arranges in the scroll wrap groove bottom of described fixed scroll opening off and on.
30. scroll compressor as claimed in claim 24, it is characterized in that, the pressing chamber side opening end in a plurality of described the 5th paths is set on the thrust face of the scroll wrap groove bottom of described rotation vortex or described rotation vortex, along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is at the scroll wrap front end of described pressing chamber and described fixed scroll or periodically move on the thrust face of described pressing chamber and described fixed scroll, thereby to described pressing chamber opening off and on.
31. scroll compressor as claimed in claim 25, it is characterized in that, the pressing chamber side opening end in a plurality of described the 6th paths is set on the thrust face of the scroll wrap groove bottom of described rotation vortex or described rotation vortex, along with rotatablely moving of described rotation vortex, described pressing chamber side opening end is at the scroll wrap front end of described pressing chamber and described fixed scroll or periodically move on the thrust face of described pressing chamber and described fixed scroll, thereby to described pressing chamber opening off and on.
32. scroll compressor as described in claim 1 or 20 is characterized in that, described working fluid adopts high-pressure liquid, and described high-pressure liquid is carbon dioxide.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-111207 | 2008-04-22 | ||
| JP2008111207 | 2008-04-22 | ||
| JP2008-199353 | 2008-08-01 | ||
| JP2008199353A JP5141432B2 (en) | 2008-08-01 | 2008-08-01 | Scroll compressor |
| JP2008-282726 | 2008-11-04 | ||
| JP2008282726A JP5304178B2 (en) | 2008-04-22 | 2008-11-04 | Scroll compressor |
| JP2008-298969 | 2008-11-25 | ||
| JP2008298969A JP2010127071A (en) | 2008-11-25 | 2008-11-25 | Scroll compressor |
| JP2009-022135 | 2009-02-03 | ||
| JP2009022135A JP5304285B2 (en) | 2009-02-03 | 2009-02-03 | Scroll compressor |
| PCT/JP2009/001799 WO2009130878A1 (en) | 2008-04-22 | 2009-04-20 | Scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102016319A CN102016319A (en) | 2011-04-13 |
| CN102016319B true CN102016319B (en) | 2013-11-06 |
Family
ID=43332868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980114359.9A Active CN102016319B (en) | 2008-04-22 | 2009-04-20 | Scroll compressor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102016319B (en) |
| AU (1) | AU2009239310A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5359997B2 (en) * | 2010-06-11 | 2013-12-04 | パナソニック株式会社 | Scroll compressor |
| JP5861035B2 (en) * | 2011-10-26 | 2016-02-16 | パナソニックＩｐマネジメント株式会社 | Compressor |
| JP5701230B2 (en) * | 2012-02-14 | 2015-04-15 | 日立アプライアンス株式会社 | Scroll compressor |
| JP5951456B2 (en) * | 2012-11-26 | 2016-07-13 | 三菱重工業株式会社 | Scroll compressor |
| JP5812083B2 (en) * | 2013-12-02 | 2015-11-11 | ダイキン工業株式会社 | Scroll compressor |
| KR101573598B1 (en) | 2014-02-20 | 2015-12-01 | 엘지전자 주식회사 | A scroll compressor |
| KR101596583B1 (en) | 2014-06-24 | 2016-02-22 | 엘지전자 주식회사 | A scroll compressor |
| CN105889064A (en) * | 2016-06-15 | 2016-08-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
| DE102017105175B3 (en) | 2017-03-10 | 2018-08-23 | OET GmbH | Positive displacement machine according to the spiral principle, method for operating a positive displacement machine, positive displacement spiral, vehicle air conditioning system and vehicle |
| DE102017206172A1 (en) * | 2017-04-11 | 2018-10-11 | Robert Bosch Gmbh | Scroll expansion machine and exhaust residual heat utilization device, in particular a vehicle, with such an expansion machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2790126B2 (en) * | 1996-06-17 | 1998-08-27 | 松下電器産業株式会社 | Scroll gas compressor |
| JP2870490B2 (en) * | 1996-06-14 | 1999-03-17 | 松下電器産業株式会社 | Scroll gas compressor |
| CN1489673A (en) * | 2001-01-29 | 2004-04-14 | 松下电器产业株式会社 | Scroll compressor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185892A (en) * | 1983-04-05 | 1984-10-22 | Toyoda Autom Loom Works Ltd | Scroll type compressor |
| JP2005048666A (en) * | 2003-07-29 | 2005-02-24 | Matsushita Electric Ind Co Ltd | Scroll compressor |
| JP2005147101A (en) * | 2003-11-20 | 2005-06-09 | Mitsubishi Electric Corp | Scroll compressor and refrigerating air conditioner |
-
2009
- 2009-04-20 AU AU2009239310A patent/AU2009239310A1/en not_active Abandoned
- 2009-04-20 CN CN200980114359.9A patent/CN102016319B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2870490B2 (en) * | 1996-06-14 | 1999-03-17 | 松下電器産業株式会社 | Scroll gas compressor |
| JP2790126B2 (en) * | 1996-06-17 | 1998-08-27 | 松下電器産業株式会社 | Scroll gas compressor |
| CN1489673A (en) * | 2001-01-29 | 2004-04-14 | 松下电器产业株式会社 | Scroll compressor |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2005-147101A 2005.06.09 |
| JP第2790126号B2 1998.06.12 |
| JP第2870490号B2 1999.01.08 |
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|---|---|
| AU2009239310A1 (en) | 2009-10-29 |
| CN102016319A (en) | 2011-04-13 |
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