CN1924358A - Eddy liquid machinery - Google Patents
Eddy liquid machinery Download PDFInfo
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- CN1924358A CN1924358A CNA2006101288721A CN200610128872A CN1924358A CN 1924358 A CN1924358 A CN 1924358A CN A2006101288721 A CNA2006101288721 A CN A2006101288721A CN 200610128872 A CN200610128872 A CN 200610128872A CN 1924358 A CN1924358 A CN 1924358A
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- scroll
- mentioned
- pressing chamber
- flow path
- circling round
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0028—Internal leakage control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0035—Equalization of pressure pulses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
To discharge high pressure liquid compressed when liquid refrigerant is sucked into a compression chamber to an outside without making the same enter into a back pressure area of a turning scroll or the like. A communication flow path 21 establishing communication between the compression chamber and the back pressure area of the turning scroll 20 is provided in a base plate and a lap of the turning scroll, and a relief mechanism 1 releasing predetermined pressure fluid in the compression chamber connecting to the communication flow path provided in the lap of the turning scroll 20 is provided in a fixed scroll 10. Consequently, entrance of liquid refrigerant into the back pressure area 31 is reduced while easily discharging liquid refrigerant at a time of pressure rise due to suction of liquid refrigerant to the compression chamber. Also, if oil containing much refrigerant foams in the back pressure area 31 or the like, oil is discharged to the compression camber through the communication flow path 21 of the turning scroll 20 and is discharged from the relief mechanism 11 of the fixed scroll 10. Consequently, unexpected pressure rise in the back pressure area and the compression camber is reduced.
Description
Technical field
The present invention relates to a kind of fluid compression engine and fluid conveying machine that is used for refrigerating air-conditioning, air compressor etc., particularly a kind of scroll compressor.
Background technique
In the past, in being applicable to the scroll compressor of indoor air conditioner, scroll compressor with following formation is because patent documentation 1 and by known for example, that is: make the fixed scroll that on base plate, is formed with helical clinch (lap) and the scroll clinch interlock mutually relatively of circling round, and form a plurality of pressing chambers, the scroll back side applies back pressure to circling round, make panel (periphery of the base plate) contact of two scroll, and be equipped with at the scroll back side of circling round the anti-locking mechanism of rotation make circle round scroll not from then carry out circumnutation, compresses chamber volume carries out the compression of fluid continuously thus.
And, in patent documentation 1, disclose, it connects the circle round clinch of scroll and the through hole of base plate by being provided with, and by this through hole support or oppose from the high-pressure area of bearing portion nip territory or pressing chamber fuel feeding, improves the sealing (formation oil film seal) of pressing chamber thus.
Patent documentation: the spy opens the 2004-225644 communique
In above-mentioned patent documentation 1 disclosed scroll compressor, what become problem is, when a large amount of liquid refrigerant that sucks from freeze cycle, exists the incompressible liquid refrigerant of compression to cause taking place the situation of high hydraulic pressure in pressing chamber.In patent documentation 1 disclosed scroll compressor, connect the circle round clinch of scroll and the through hole of base plate owing to be provided with, thereby consider to make liquid refrigerant to flow into non-pressing chamber zone (back pressure zone or bearing portion) through through hole from the pressing chamber side.When liquid refrigerant flows into, in the back pressure zone or bearing portion take place that lubricity reduces and because of the liquid refrigerant foaming produces oil film breakage etc., have the possibility of reduction reliability.
In addition, also exist such problem, when under cryogenic conditions, stopping the certain hour operation, dissolved refrigeration agent in the oil in compressor (constituting) by compressing mechanism and motor, when the refrigeration agent ratio is high in the oil of oil, following phenomenon takes place in oil easily: in the back pressure zone, the oil aeration that is dissolved with refrigeration agent causes back pressure to rise, the increase of the scroll of circling round pushing force, in the refrigerant gas that foams and produce (ratio enters the higher refrigeration agent of pressure of the refrigerant gas of pressing chamber when moving usually) the inflow pressing chamber, compression indoor pressure is risen to outside the imagination, cause performance, reliability reduces.
Summary of the invention
The object of the present invention is to provide a kind of scroll compressor, the highly pressurised liquid that is compressed by liquid state when it is drawn into liquid refrigerant in the pressing chamber, be discharged to the outside rather than the connection stream by the scroll of circling round makes it to enter back pressure zone etc., and when the oil that contains a large amount of refrigeration agents is located foaming in the back pressure zone etc. and when causing back pressure to rise, easily the connection stream by the scroll of circling round will flow into the refrigeration agent discharge in the pressing chamber.
For addressing the above problem, the present invention mainly adopts following formation.
A kind of scroll compressor, the fixed scroll that is provided with the helical clinch and the scroll of circling round are so that the relative mode interlock of clinch separately and form a plurality of pressing chambers, the back side to the above-mentioned scroll of circling round applies back pressure, make above-mentioned circle round scroll not from then carry out circumnutation, the volume of above-mentioned pressing chamber is dwindled continuously carry out the fluid compression, wherein
Clinch and base plate in the above-mentioned scroll of circling round are provided with the connection stream, and this connection stream is communicated to the zone beyond the above-mentioned pressing chambers such as the back pressure zone of the above-mentioned scroll of circling round or bearing portion from above-mentioned pressing chamber,
Be provided with the releasing mechanism that the indoor authorized pressure fluid of pressing chamber is discharged to the outside in the said fixing scroll, this pressing chamber is connected with the connection stream of the clinch that is arranged at the above-mentioned scroll of circling round.
And in above-mentioned scroll compressor, the flow path resistance of releasing mechanism that is arranged at the said fixing scroll is littler than the flow path resistance of above-mentioned connection stream.
In addition, a kind of scroll compressor, the fixed scroll that is provided with the helical clinch and the scroll of circling round are so that the relative mode interlock of clinch separately and form a plurality of pressing chambers, the back side to the above-mentioned scroll of circling round applies back pressure, make above-mentioned circle round scroll not from then carry out circumnutation, the volume of above-mentioned pressing chamber is dwindled continuously carry out the fluid compression, wherein
Clinch and base plate in the above-mentioned scroll of circling round are provided with the connection stream, and this connection stream is communicated to the zone beyond the above-mentioned pressing chambers such as the back pressure zone of the above-mentioned scroll of circling round or bearing portion from above-mentioned pressing chamber,
Be provided with the releasing mechanism that the indoor authorized pressure fluid of pressing chamber is discharged to the outside in the said fixing scroll, this pressing chamber is connected with the connection stream of the clinch that is arranged at the above-mentioned scroll of circling round,
Be provided with the flow path resistance changeable mechanism that changes flow path resistance according to the flow direction of fluid at the connection stream that is arranged at the above-mentioned scroll of circling round,
Above-mentioned flow path resistance variant mechanism has: first flow path resistance of the fluid flow direction in the zone beyond increasing from above-mentioned pressing chamber to above-mentioned pressing chamber, reduce function from the zone beyond the above-mentioned pressing chamber to second flow path resistance of the fluid flow direction of above-mentioned pressing chamber
Make the flow path resistance of the releasing mechanism that is arranged at the said fixing scroll littler than above-mentioned first flow path resistance of above-mentioned flow path resistance changeable mechanism.
(effect of invention)
According to the present invention, a kind of compressor with high efficiency and high reliability can be provided, it especially can reduce the zone (for example back pressure zone, circle round scroll bearing portion etc.) of liquid beyond from the pressing chamber side inflow to pressing chamber.
In addition, even be fed into back pressure zone and during foaming, the useless pressure that also can suppress in back pressure zone and the pressing chamber rises, thereby improves the performance and the reliability of compressor at the oil that contains a large amount of refrigeration agents.
Description of drawings
Fig. 1 is that the section of the pressing chamber in the scroll compressor of expression embodiments of the present invention is promptly along the sectional view of the A-A ' line shown in the arrow among Fig. 2.
Fig. 2 is the whole figure that constitutes of summary of the scroll compressor of expression present embodiment.
Fig. 3 is the figure of an example of change in resistance of the connection stream of the clinch that is arranged at the scroll of circling round in the scroll compressor of expression present embodiment.
Fig. 4 is the figure of another example of change in resistance of the connection stream of the clinch that is arranged at the scroll of circling round in the scroll compressor of expression present embodiment.
Fig. 5 is the figure of another example of change in resistance of the connection stream of the clinch that is arranged at the scroll of circling round in the scroll compressor of expression present embodiment.
The reference numeral explanation
1 fluid input
2 fluid outputs
3 central exits
The 5 scroll base plates that circle round
6 fixed scroll base plates
The 7 scroll panels that circle round
8 fixed scroll panels
10 fixed scroll
11 releasing mechanisms
12,12a, 12b release port
The 15 scroll clinchs that circle round
16 fixed scroll clinchs
20 scroll of circling round
21 through holes
22 adverse currents reduce mechanism
23 Fluid diodes
30,30a, 30b pressing chamber
31 back pressure zones
40 gaps
50 frameworks
60 axostylus axostyles
Locking mechanism is prevented in 70 rotations
80 back pressure regulating mechanisms.
Embodiment
Below, with reference to Fig. 1～Fig. 5, the scroll compressor of embodiments of the present invention is described in detail.Fig. 1 is that the section of the pressing chamber in the scroll compressor of expression embodiments of the present invention is promptly along the sectional view of the A-A ' line of Fig. 2.Fig. 2 is the whole figure that constitutes of summary in the scroll compressor of expression present embodiment.Fig. 3 is the figure of an example of change in resistance of the connection stream of the clinch that is arranged at the scroll of circling round in the scroll compressor of expression present embodiment.Fig. 4 is the figure of another example of change in resistance of the connection stream of the clinch that is arranged at the scroll of circling round in the scroll compressor of expression present embodiment.Fig. 5 is the figure of another example of change in resistance of the connection stream of the clinch that is arranged at the scroll of circling round in the scroll compressor of expression present embodiment.
In the accompanying drawings, symbol 1 expression fluid input, 2 expression fluid outputs, 3 expression central exits, 5 represent to circle round the scroll base plate, 6 expression fixed scroll base plates, 7 represent to circle round the scroll panel, 8 expression fixed scroll panels, 10 expression fixed scroll, 11 expression releasing mechanisms, 12,12a, 12b represents release port, and 15 represent to circle round the scroll clinch, 16 expression fixed scroll clinchs, 20 represent to circle round scroll, 21 expression through holes, and 22 expression adverse currents reduce mechanisms, 23 expression Fluid diodes, 30,30a, 30b represents pressing chamber, 31 expression back pressure zones, 40 expression gaps, 50 expression frameworks (frame), 60 expression axostylus axostyles (shaft), the anti-locking mechanism of 70 expression rotations, 80 expression back pressure regulating mechanisms.
In Fig. 1 and Fig. 2, the scroll compressor of present embodiment is by constituting with lower member: main motor (not shown) and the main compressing mechanism that is made of pressing chamber 30a, 30b, fixed scroll 10, the scroll of circling round 20 and back pressure zone 31 that is made of stator and rotor.Be applicable at this scroll compressor under the situation of freeze cycle, the refrigerant gas that will be used for freeze cycle imports fluid input 1, makes it to compress thus by pressing chamber 30a, 30b, pressurized gas is sent from the centre outlet, and exports from fluid output 2 through scroll compressor inside.
The schematic structure that shows from Fig. 3 also as can be known, the scroll compressor of present embodiment, on fixed scroll base plate 6, formed helical clinch 16 fixed scroll 10, with the scroll 20 of circling round that has formed clinch 15 with mutually towards the mutual interlock of mode of clinch 15,16, and form a plurality of pressing chamber 30a, 30b, these scroll 20 back sides of circling round are applied back pressure, make panel 7,8 contacts of two scroll.And then, the anti-locking mechanism 70 of rotation is set on scroll 20 back sides of circling round, make the scroll 20 not rotations ground that circles round carry out circumnutation, compresses chamber 30 volumes carry out the compression of fluid continuously thus.
In addition, at the clinch 15 of scroll 20 that circles round, be provided with through hole 21, an end of this through hole 21 is at the clinch end face opening of the scroll 20 of circling round, and the other end is connected with back pressure zone 31.That is, through hole 21 is the holes that connect clinch 15 and base plate 5. Pressing chamber 30a and 30b form (with reference to Fig. 1) in the mode of the opening portion (opening portion of clinch end face side) that clips through hole 21.At this moment, with reference to Fig. 3, form gap 40 between the end face side of clinch and the base plate 6 of fixed scroll 10.So, between pressing chamber 30 and back pressure zone 31, being formed with gap 40 and through hole 21, the connection stream of pressing chamber 30 by being made of gap 40 and through hole 21 is communicated with back pressure zone 31.
In addition, in the present embodiment,, offer the release port 12a that is arranged at fixed scroll 10 at pressing chamber 30a, same, offer release port 12b at pressing chamber 30b, this formation is one of the feature of the scroll compressor of present embodiment.Here, the function with releasing mechanism 11 of release port 12 is when pressing chamber 30 reaches predefined authorized pressure, this pressure to be discharged to the outside.
In addition, the back pressure in back pressure zone 31 is set to, and produces the pressing chamber opposition side of the base plate 5 that acts on the scroll 20 of circling round in compressor operating, and the power of scroll 20 to fixed scroll 10 pushings of will circling round, thereby obtain the required sealing of compression, and reduce the sliding friction loss.Here, back pressure reduces by bearing portion in compressor shoots out pressure, and is imported into the back pressure zone.On the other hand, via being arranged at the valve body in the fixed scroll 10 and making up the back pressure regulating mechanism 80 that spring is arranged, the refrigerant gas of back pressure chamber is discharged to the pressing chamber that roughly forms suction pressure from back pressure chamber.And the formation of formation the following stated: via the through hole 21 of being located at the scroll 20 of circling round, discharge in the zone from the back pressure zone near the back pressure in the pressing chamber.Owing to compare with the suction fluid, the fluid that flows into the suction zone of pressing chamber by back pressure regulating mechanism 80 is a High Temperature High Pressure, so there are influences such as the fluid that reexpands when flowing into or suck is heated, but by configuration through hole 21, make the zone that condition such as feed pressure and temperature and back pressure zone 31 is approximate, thereby can reduce above-mentioned loss.
Like this, present embodiment is by being provided with releasing mechanism 11 at pressing chamber 30, when causing that from returning of the liquid of freeze cycle liquid is inhaled into pressing chamber, refrigeration agent is discharged from release port easily, and then, by the discharge of this liquid refrigerant, can reduce refrigeration agent and flow into back pressure zone 31, thereby performance, reliability get a greater increase by being communicated with through hole 21.Like this, do not make the interior refrigeration agent of pressing chamber by being communicated with the bearing portion that stream imports to the back pressure zone or the scroll of circling round.
Secondly, following explanation is carried out in the function and the effect of the connection stream relevant with releasing mechanism (being arranged at pressing chamber 30 and fixed scroll 10).The scroll of circling round 20 is in axostylus axostyle 60, the anti-80 groups of particular spaces of going between fixed scroll 10 and framework 50 of locking mechanism of rotation.Usually moving usefulness, the scroll of circling round 20 presses against fixed scroll 10 and the running of circling round upward by the back pressure effect in back pressure zone 31 in the diagram configuration example of Fig. 2.
Yet, flow into pressing chamber and liquid towards refrigeration agent when compressing (the imagination pressure that causes pressing chamber rises) at liquid refrigerant, because also there is the scroll 20 of circling round is broken away from from fixed scroll 10 situation of the framework 50 contact edges running of limit and below in this unlifting pressure.Like this, consider to connect the scroll 20 of circling round clinch 15 through hole 21 and when running usually, be in floating on the clearance (clearance) (gap 40) of state and the clearance (gap 40) that when carrying out the fluid compression, is in the state that breaks away from downwards, preferably, the flow path resistance of releasing mechanism 11 is set at, littler than the flow path resistance of the connection stream that is communicated with pressing chamber 30 and the back pressure zone 31 21+ gap, hole 40 of base plate 5 and clinch 15 of scroll 20 (perforation circle round).In other words, preferably, when the pressure in the pressing chamber 30 rises, make the refrigeration agent in the pressing chamber not be communicated to back pressure zone 31 or bearing portion, but discharge by releasing mechanism 11 via being communicated with stream.
Thus, as the size of the clearance 40 of the configuration relation that depends on framework 50, the size shape of through hole 21, can diminish by the sectional area that suitably makes stream, as shown in Figure 3, make sectional area be stepped (actual add man-hour easily appropriate change flow path resistance) or the shape that changes continuously waits and realizes.
Below, with reference to Fig. 4 and Fig. 5, other configuration examples that make the flow path resistance variation that is communicated with stream are carried out the following description.Fig. 4 is illustrated in to possess the example that adverse current reduces mechanism in the scroll 20 of circling round.Adverse current is set in the scroll 20 of circling round reduces mechanism 22, when when back pressure zone 31 flows into pressing chamber 30, making resistance force diminishes, and (flowing when rising based on the outer pressure of imagination of the compression of liquid refrigerant) makes flow path resistance become big when adverse current occurring, thereby reduces adverse current.From the last figure of Fig. 4 as can be known, because from the pressure in back pressure zone, make the slide block that is subjected to the spring ejection overcome elastic force and move right, thereby make fluid be subjected to resistance to be admitted to pressing chamber (guaranteeing the sealing of pressing chamber) littlely from the back pressure zone.To this, the structure shown in figure below of Fig. 4 has following function: be subjected to the slide block of spring ejection to stop up the connection stream, make the resistance increase from the liquid refrigerant stream of compressor.
Reduce mechanism as adverse current, also have combinaing valve body and elastomeric mechanism, based on the mechanism of the temperature sense that reduces corresponding to the liquid refrigerant temperature, in addition, also can use the so-called Fluid diode 23 that makes the flow path resistance variation by flow direction as shown in Figure 5.Particularly, the scroll of circling round 20 under the gap that moves up and down along the running shaft direction becomes big situation, the adverse current of easier generation refrigeration agent, it is more effective that therefore above-mentioned adverse current reduces mechanism.In addition, can certainly be the structure that not only can reduce adverse current but also can suppress adverse current.
According to above explanation, the major character of the scroll compressor of embodiments of the present invention is, on the one hand, being communicated with stream and can reducing by back pressure zone and pressing chamber by reexpanding or by based on the loss of heating, on the other hand, on pressing chamber and fixed scroll, releasing mechanism is set, makes the compression of the liquid refrigerant in pressing chamber cause when pressure rises, do not make refrigeration agent enter the back pressure zone by being communicated with stream.
As concrete formation and effect, the connection stream of outside the circle round setting of scroll clinch and pressing chamber and pressing chamber, locating to be communicated with (in concrete example, being through hole), to the pressing chamber that is communicated with the opening portion of the pressing chamber side that is communicated with stream, can on fixed scroll, offer releasing mechanism, thus suck liquid refrigerant the time discharge easily and reduce liquid refrigerant and enter into outside the pressing chamber and locate.In addition, when the back pressure zone of outside pressing chamber, locating, bearing portion etc. locate contain the oil aeration of a large amount of refrigeration agents the time, not only the stream by the vortex that circles round is discharged to pressing chamber, but also be discharged from from fixed scroll, the useless pressure that also can reduce back pressure zone and pressing chamber thus rises.Though be illustrated as example, in the scroll of circling round possesses the compressor of through hole of connection pressing chamber and bearing portion, also obtain same effect with the compressor that is communicated with pressing chamber and back pressure zone.In addition, scroll compressor is illustrated as illustration in the above description, but the present invention being not limited to this, is the technology applicable to fluid compression engine and fluid conveying machine.
Claims (7)
1. scroll compressor, the fixed scroll that is provided with the helical clinch and the scroll of circling round are so that the relative mode interlock of clinch separately and form a plurality of pressing chambers, the back side to the above-mentioned scroll of circling round applies back pressure, make above-mentioned circle round scroll not from then carry out circumnutation, the volume of above-mentioned pressing chamber is dwindled continuously carry out the fluid compression, this scroll compressor is characterised in that
Clinch and base plate in the above-mentioned scroll of circling round are provided with the connection stream, and this connection stream is communicated to the zone beyond the above-mentioned pressing chambers such as the back pressure zone of the above-mentioned scroll of circling round or bearing portion from above-mentioned pressing chamber,
Be provided with the releasing mechanism that the indoor authorized pressure fluid of pressing chamber is discharged to the outside in the said fixing scroll, this pressing chamber is connected with the connection stream of the clinch that is arranged at the above-mentioned scroll of circling round.
2. scroll compressor according to claim 1 is characterized in that,
Above-mentioned connection stream is made of the gap between the base plate of the clinch end face of the through hole of clinch that connects the above-mentioned scroll of circling round and base plate and the above-mentioned scroll of circling round and said fixing scroll.
3. scroll compressor according to claim 1 and 2 is characterized in that,
Be provided with above-mentioned releasing mechanism at a plurality of pressing chambers adjacent with the opening portion that is communicated with stream of the clinch that is arranged at the above-mentioned scroll of circling round.
4. scroll compressor according to claim 1 and 2 is characterized in that,
Make the flow path resistance of the releasing mechanism that is arranged at the said fixing scroll littler than the flow path resistance of above-mentioned connection stream.
5. scroll compressor according to claim 2 is characterized in that,
Make the sectional area of the through hole that is arranged at the above-mentioned scroll of circling round be cascade or variation continuously,
Make the flow path resistance of the releasing mechanism that is arranged at the said fixing scroll littler than the flow path resistance of above-mentioned connection stream.
6. scroll compressor, the fixed scroll that is provided with the helical clinch and the scroll of circling round are so that the relative mode interlock of clinch separately and form a plurality of pressing chambers, the back side to the above-mentioned scroll of circling round applies back pressure, make above-mentioned circle round scroll not from then carry out circumnutation, the volume of above-mentioned pressing chamber is dwindled continuously carry out the fluid compression, this scroll compressor is characterised in that
Clinch and base plate in the above-mentioned scroll of circling round are provided with the connection stream, and this connection stream is communicated to the zone beyond the above-mentioned pressing chambers such as the back pressure zone of the above-mentioned scroll of circling round or bearing portion from above-mentioned pressing chamber,
Be provided with the releasing mechanism that the indoor authorized pressure fluid of pressing chamber is discharged to the outside in the said fixing scroll, this pressing chamber is connected with the connection stream of the clinch that is arranged at the above-mentioned scroll of circling round,
Be provided with the flow path resistance changeable mechanism that changes flow path resistance according to the flow direction of fluid at the connection stream that is arranged at the above-mentioned scroll of circling round,
Above-mentioned flow path resistance variant mechanism has: first flow path resistance of the fluid flow direction in the zone beyond increasing from above-mentioned pressing chamber to above-mentioned pressing chamber, reduce function from the zone beyond the above-mentioned pressing chamber to second flow path resistance of the fluid flow direction of above-mentioned pressing chamber
Make the flow path resistance of the releasing mechanism that is arranged at the said fixing scroll littler than above-mentioned first flow path resistance of above-mentioned flow path resistance changeable mechanism.
7. scroll compressor according to claim 6 is characterized in that,
Above-mentioned flow path resistance changeable mechanism is a Fluid diode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005253530 | 2005-09-01 | ||
| JP2005253530A JP4355308B2 (en) | 2005-09-01 | 2005-09-01 | Scroll fluid machinery |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110144337.6A Division CN102207088B (en) | 2005-09-01 | 2006-08-31 | Scroll fluid machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1924358A true CN1924358A (en) | 2007-03-07 |
Family
ID=37817126
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110144337.6A Expired - Fee Related CN102207088B (en) | 2005-09-01 | 2006-08-31 | Scroll fluid machine |
| CNA2006101288721A Pending CN1924358A (en) | 2005-09-01 | 2006-08-31 | Eddy liquid machinery |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110144337.6A Expired - Fee Related CN102207088B (en) | 2005-09-01 | 2006-08-31 | Scroll fluid machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4355308B2 (en) |
| KR (1) | KR100811398B1 (en) |
| CN (2) | CN102207088B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512259B (en) * | 2013-03-21 | 2016-04-20 | 广东美芝制冷设备有限公司 | Heat pump, refrigeration system |
| JP7280726B2 (en) * | 2019-03-20 | 2023-05-24 | サンデン株式会社 | scroll compressor |
| CN112922828B (en) * | 2021-03-08 | 2023-03-14 | 青岛科技大学 | Prevent pressure pulsation's vortex liquid pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0830471B2 (en) * | 1986-12-04 | 1996-03-27 | 株式会社日立製作所 | Air conditioner equipped with an inverter-driven scroll compressor |
| JPH04132889A (en) * | 1990-09-20 | 1992-05-07 | Tokico Ltd | Scroll type fluid machine |
| JPH051677A (en) * | 1991-06-27 | 1993-01-08 | Hitachi Ltd | Scroll compressor |
| JPH0626472A (en) * | 1992-07-10 | 1994-02-01 | Toshiba Corp | Scroll compressor |
| CN1182835A (en) * | 1996-11-19 | 1998-05-27 | 刘文化 | Vortex compressor |
| US5762483A (en) * | 1997-01-28 | 1998-06-09 | Carrier Corporation | Scroll compressor with controlled fluid venting to back pressure chamber |
| JP4107903B2 (en) | 2002-07-29 | 2008-06-25 | 株式会社デンソー | Scroll compressor |
-
2005
- 2005-09-01 JP JP2005253530A patent/JP4355308B2/en not_active Expired - Fee Related
-
2006
- 2006-08-31 KR KR1020060083200A patent/KR100811398B1/en active IP Right Grant
- 2006-08-31 CN CN201110144337.6A patent/CN102207088B/en not_active Expired - Fee Related
- 2006-08-31 CN CNA2006101288721A patent/CN1924358A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070026177A (en) | 2007-03-08 |
| CN102207088A (en) | 2011-10-05 |
| KR100811398B1 (en) | 2008-03-07 |
| CN102207088B (en) | 2015-06-17 |
| JP2007064147A (en) | 2007-03-15 |
| JP4355308B2 (en) | 2009-10-28 |
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