CN103032320B - There is the scroll fluid displacement device of steady pressure back pressure chamber - Google Patents
There is the scroll fluid displacement device of steady pressure back pressure chamber Download PDFInfo
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- CN103032320B CN103032320B CN201110319117.2A CN201110319117A CN103032320B CN 103032320 B CN103032320 B CN 103032320B CN 201110319117 A CN201110319117 A CN 201110319117A CN 103032320 B CN103032320 B CN 103032320B
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Abstract
The invention discloses a kind of scroll fluid displacement device with steady pressure back pressure chamber, comprise, one fixed scroll and a moving scrollwork are placed in main casing inside, at least one air flue is provided with in described moving scrollwork, described air flue can do relative motion in process at described moving scrollwork and described fixed scroll, be communicated with described back pressure air chamber and described sealed air chamber, wherein, an one-way valve is also provided with in described moving scrollwork, passage residing for this one-way valve and described air flue through, the valve head of described one-way valve points to described air flue, described one-way valve can be opened with the rising of the pressure of the described sealed air chamber be connected with described air flue.Use scroll fluid displacement device of the present invention, by the air flue in moving scrollwork being arranged an one-way valve, the pressure in back pressure air chamber is not changed with the pressure height of the sealed air chamber communicated with it, and the power partially that maintains axially maintains in rational scope.
Description
Technical field
The present invention relates to a kind of scroll devices, particularly relate to a kind of scroll fluid displacement device with steady pressure back pressure chamber.
Background technique
By the mutual conjugation of swirl elements of two intermeshing screw types or involute-type, and be separately fixed on respective end plate, form fixed scroll and moving scrollwork respectively.These two swirl elements are intermeshed between swirl elements, form linear contact lay.During work, between a pair linear contact lay and end sheet surface, at least form a sealed air chamber.When moving scrollwork does orbiting (circular translation) relative to fixed scroll, the linear contact lay on screw type sidewall can move along this sidewall, thus changes the size of sealed air chamber.
Compressor is divided in actual applications oil lubrication and oil-free lubrication two kinds.That discharges compressor is contained a large amount of lubricant oil by pressurized gas, and needing to reach gasoline weight ratio through gas and oil separating plant is that the compressor of the oil content of 1-3ppm has been referred to as hydraulic shrinking machine usually.And lubricant oil is not introduced completely in by pressurized gas, the compressor being the oil content of below 0.001ppm by the gasoline weight ratio in pressurized gas of discharge is referred to as oilless compressor usually.Gasoline weight ratio is that the compressor of the oil content of 0.001-0.1ppm is referred to as micro-oil (trace amount) compressor.
U. S. Patent 4,861,245 provide dynamic scrollwork relative to the floating type scroll compressor determining scrollwork and do axially to comply with motion.Moving, the pressed gas of certain compression air chamber formed between fixed scroll is introduced in dynamic scrollwork back pressure air chamber behind, creates to promote dynamic scrollwork and overcome axial separation force to the axially inclined power of determining scrollwork and comply with motion.
U. S. Patent 4,877,382 provide fixed scroll does axially to comply with motion floating type scroll compressor relative to moving scrollwork.Moving, the pressed gas of certain the close air chamber formed between fixed scroll is introduced in fixed scroll back pressure air chamber behind, creates promotion fixed scroll and overcomes axial separation force complys with axially inclined power from motion to moving scrollwork.
Above two inventions are that the axis of single scrollwork complys with structure.U. S. Patent 6,758,659 illustrate and a kind ofly entirely to comply with, and namely has axially and radial mechanism of complying with, the oilless compressor of " suspensions " formula pair scrollwork.The invention provides dynamic scrollwork relative to determining the axial floating type scroll compressor complying with motion of scrollwork work.Moving, the pressed gas of certain sealed air chamber formed between fixed scroll is introduced in moving scrollwork back pressure air chamber behind, creates promotion two moving scrollworks and overcomes axial separation force does axially to comply with axially inclined power from motion to the fixed scroll engaged with it respectively.
In above three inventions, from moving, the pressure that certain sealed air chamber of being formed between fixed scroll introduces back pressure air chamber does the change gone round and begun again with the change of sealed air chamber's pressure cycle at the volley.Moving, the sum of products being equaled the area of gas pressure in each compression air chamber and this compression air chamber by the Separating force produced by pressurized gas between fixed scroll.To increase thus its product keeps more stable numerical value owing to reducing simultaneously pressure at the area of periodic compression air chamber.And in back pressure air chamber, because area is fixed and pressure cycle change causes axially partially power to do large cyclically-varying.Like this, when axially the minimum value of power is enough to overcome the Separating force having pressurized gas to produce partially, axially the maximum value of power just greatly exceed corresponding Separating force partially, thus causes frictional loss excessive between moving scrollwork pre-assessment scrollwork.This point especially looms large in the application of high pressure compressor.
Summary of the invention
The object of the present invention is to provide a kind of scroll fluid displacement device with steady pressure back pressure chamber, to reach the problem of back pressure air chamber internal air pressure, make the axially inclined power in compressor less and keep stable.
A kind of scroll fluid displacement device with steady pressure back pressure chamber of the present invention, comprises, and it is inner that a fixed scroll and a moving scrollwork are placed in a main casing; The swirl elements of the upper head plate of described moving scrollwork contacts with the swirl elements conjugation of described fixed scroll lower end sheet, and the described swirl elements of described moving scrollwork and described fixed scroll in the shape of a spiral or involute-type; The part be contacting and separating between the swirl elements of adjacent described moving scrollwork and the swirl elements of described fixed scroll, and described upper head plate and described lower end sheet, form at least one sealed air chamber jointly; The upper end portion of one main shaft connects the middle part of the lower end sheet of moving scrollwork by bearing, to drive described moving scrollwork to move, main casing offers suction port, so that extraneous gas is delivered to described sealed air chamber; Described fixed scroll has exhaust chamber, discharges with the pressurized gas that will move in the described sealed air chamber at described fixed scroll center; The lower end sheet of described moving scrollwork contacts with a moving thrust plate, and forms at least one back pressure air chamber, and described moving thrust plate connects described main shaft by bearing; At least one air flue is provided with in described moving scrollwork, described air flue can do relative motion in process at described moving scrollwork and described fixed scroll, be communicated with described back pressure air chamber and described sealed air chamber, wherein, an one-way valve is also provided with in described moving scrollwork, passage residing for this one-way valve and described air flue through, the valve head of described one-way valve points to described air flue, and described one-way valve can be opened with the rising of the pressure of the described sealed air chamber be connected with described air flue.
The present invention has an embodiment of the scroll fluid displacement device of steady pressure back pressure chamber, and wherein, described valve head rear portion has elastic element, makes described air flue under different pressure, described valve head can by described air flue can conducting or close.
The present invention has an embodiment of the scroll fluid displacement device of steady pressure back pressure chamber, and wherein, described moving scrollwork upper head plate contacts with described main casing in part and is provided with a circle lip sealing groove.
The present invention has an embodiment of the scroll fluid displacement device of steady pressure back pressure chamber, and wherein, the upper head plate of described moving scrollwork, the part between described lip sealing groove and the swirl elements of described moving scrollwork is latticed.
The present invention has an embodiment of the scroll fluid displacement device of steady pressure back pressure chamber, and wherein, the upper-end surface of the swirl elements of described moving scrollwork and/or the swirl elements of described fixed scroll is set to latticed.
The present invention has an embodiment of the scroll fluid displacement device of steady pressure back pressure chamber, and wherein, the degree of depth of each lattice of described grid is between 0.05 millimeter to 5 millimeters.
The present invention has an embodiment of the scroll fluid displacement device of steady pressure back pressure chamber, wherein, the geometrical shape of grid can be square, circular, rectangle and other any shape, the design of the linear dimension of grid will match with the moving radius of moving scrollwork, grid structure is made to do in moving motion at moving scrollwork, areas all in the plane of the inswept cooperation corresponding to it of energy, discontiguous surface, any point can not be left in the plane of cooperation corresponding to it, such as, when moving radius is 1mm, the length of side of square net must not be greater than 1mm, the concave surface obtaining grid can not leave discontiguous vestige in the plane of corresponding cooperation.
The present invention has an embodiment of the scroll fluid displacement device of steady pressure back pressure chamber, and wherein, be provided with at least one seal element between the lower end sheet of described moving scrollwork and described moving thrust plate, described at least one seal element is for sealing described back pressure chamber.
The scroll fluid displacement device with steady pressure back pressure chamber provided by the invention, the good effect making it to have is:
By the air flue in moving scrollwork being arranged an one-way valve, the pressure in back pressure air chamber is not changed with the pressure height of the sealed air chamber communicated with it, and the power partially that maintains axially maintains in rational scope.
Accompanying drawing explanation
Fig. 1 is the sectional view that the present invention has the scroll fluid displacement device of steady pressure back pressure chamber;
Fig. 2 is the amplification assumption diagram at A place in Fig. 1;
Fig. 3 is the plan view that the present invention has the moving scrollwork of the scroll fluid displacement device of steady pressure back pressure chamber;
Fig. 4 is the amplification assumption diagram at C place in Fig. 3.
Embodiment
A kind of embodiment with the scroll fluid displacement device of steady pressure back pressure chamber of the present invention is provided below in conjunction with accompanying drawing.
Fig. 1 is the sectional view that the present invention has the scroll fluid displacement device of steady pressure back pressure chamber, Fig. 2 is the amplification assumption diagram at A place in Fig. 1, as shown in Figure 1 and Figure 2, the structure that the present invention has the scroll fluid displacement device of steady pressure back pressure chamber comprises: the main casing 20 that a fixed scroll 50 and a moving scrollwork 61 are placed in device is inner, base casing 70 is connected with main casing 20, jointly by fixed scroll 50 and moving scrollwork 61 and other each portions house in inside; The swirl elements 62 of the upper-end surface of moving scrollwork 61 and the swirl elements 52 of fixed scroll 50 lower end surface mutually conjugation abut, and operationally swirl elements 62 can swirl elements 52 moving relatively, and swirl elements 62 and swirl elements 52 are in the shape of a spiral or involute-type.The part be contacting and separating between swirl elements 62 and swirl elements 52, and between the lower end sheet of the upper head plate of moving scrollwork 61 and fixed scroll 50, at least one sealed air chamber of common formation, as the sealed air chamber 81 in Fig. 1, the top of one main shaft 40 is by driving joint 64 connection bearing 260, bearing 260 is fixedly connected with moving scrollwork 61 by bushing 270, main shaft 40 drives moving scrollwork 61 to do moving, main casing 20 offers suction port 80, this suction port 80 be positioned at swirl elements 52 and be communicated with the sealed air chamber that swirl elements 62 outmost turns is formed, sealed air chamber in the course of the work, by orbiting relative between swirl elements 52 with swirl elements 62, also circular translation or moving can be referred to as, sealed air chamber moves gradually from outside to inside, and volume reduces gradually, therefore the gas in sealed air chamber is compressed, air pressure increases gradually, the middle part of fixed scroll 50 has exhaust chamber 82, and the use of this exhaust chamber 82 is that the pressurized gas of the sealed air chamber by being positioned at innermost circle are discharged, and exhaust chamber 82 is also communicated with the outlet valve 100 be arranged on above fixed scroll 50 and relief opening 110.
As shown in Figure 2, the upper head plate of moving scrollwork 61 is provided with a pressure air chamber 624, and this pressure air chamber is positioned at the edge of fixed scroll 50 and moving scrollwork 61 phase-contact surface, fixed scroll 50 offers an air flue 56, this air flue 56 is communicated with pressure air chamber 624 by air flue 564, the other end is by air flue 562 and between swirl elements 62 and swirl elements 52, and be positioned on the path of one or more sealed air chamber motion, make air flue 56 can do relative motion in process at moving scrollwork 61 and fixed scroll 50, be communicated with pressure air chamber 624 and certain selected sealed air chamber with appropriate pressure.In the present embodiment one, pressure air chamber 624 can be a groove arranging a week along the outer of described fixed scroll and moving scrollwork phase-contact surface.
As shown in Figure 2, the upper head plate of moving scrollwork 61 contacts with main casing 20 in part and is provided with a circle lip sealing groove 68, to place lip envelope, in the present embodiment, lip sealing groove 68 is opened on the upper head plate of moving scrollwork 61, certainly also can be opened on main casing 20, by arranging lip envelope in the inside of lip sealing groove 68, can stop and be positioned at outside lip sealing groove 68, lubricant oil between moving scrollwork 61 and main casing 20 infiltrate inside lip sealing groove 68 without oily region, especially prevent lubricant oil from entering swirl elements 52 with swirl elements 62.In reality, even if add a circle lip sealing groove 68, owing to rubbing for a long time between the upper head plate of moving scrollwork 61 and main casing 20, parts of lubricating oil also can be caused to infiltrate inside to lip sealing groove 68, the lubricant oil infiltrated can be discharged into outside with pressurized gas, causes the pollution of pressurized gas.
Therefore, by the scroll fluid displacement device with steady pressure back pressure chamber described in embodiment one, pressure air chamber 624 is positioned at the outside of swirl elements 52 and swirl elements 62, because pressure air chamber 624 does in the process of moving at moving scrollwork 61, be communicated with sealed air chamber wherein, the air pressure of pressure air chamber 624 is made to be greater than the air pressure in lubricant oil infiltration direction, make lubricant oil cannot infiltrate swirl elements in pressure air chamber 624 52 and swirl elements 62, also just ensure that swirl elements 52 and swirl elements 62 without oil condition.
Certainly, in some cases, compressor needs swirl elements 52 and swirl elements 62 to have micro-oil, namely described in the background section gasoline gravity is the compressor of the oil content of 0.001-0.1ppm, in this case, lip envelope can not be set, reduce or even the gas pressure cancelled in pressure air chamber makes micro-oil can infiltrate swirl elements 52 in pressure air chamber 624 and swirl elements 62.Material is thus formed a kind of swirl elements 52 and the state of swirl elements 62 containing micro-oil, meet the requirement of micro-hydraulic shrinking machine.
Simultaneously, by the scroll fluid displacement device with steady pressure back pressure chamber described in embodiment one, do in the process of moving at moving scrollwork 61 relative to fixed scroll 50, because air flue 56 can be communicated with pressure air chamber 624 and a sealed air chamber, because the air pressure in sealed air chamber is higher, the air pressure of pressure air chamber 624 is raised.Because pressure air chamber 624 is in the junction of main casing 20, moving scrollwork 61 and fixed scroll 50, moving scrollwork 61 carries out in moving course of action, moving scrollwork 61 and the frictional force between fixed scroll 50 and main casing 20 reduce, this makes it possible to the large calorimetric effectively reduced because rubbing action produces, reach the effect of under nothing oil or micro-oil condition, other moving elements and load parts being lubricated.
Fig. 3 is the plan view that the present invention has the moving scrollwork of the scroll fluid displacement device of steady pressure back pressure chamber, and as shown in Figure 3, swirl elements 62 is helical.Part between lip sealing groove 68 and the swirl elements 62 of described moving scrollwork is latticed part 621 and latticed part 623, is pressure air chamber 624 between latticed part 621 and latticed part 623.Because latticed part 621 and latticed part 623 are arranged in moving scrollwork 61 in the process doing moving motion, be in main casing 20 for a long time, surface of contact between moving scrollwork 61 and fixed scroll 50 is inner, and its surface can not be exposed dispel the heat, because, along with the long-time moving action of moving scrollwork 61, the heat of latticed part 621 and latticed part 623 cannot effectively be shed, if latticed part 621 and latticed part 623 are set to the structure of existing plane, cannot will shed for a long time because of heat, cause compressor inside temperature too high, and then cause the minimizing in life-span and the damage of compressor.This part is in without oil or micro-oil condition, and grid structure makes this part can play plane sealing effect, and metal surface can be avoided again to dissolve because of friction.Therefore, in the present invention, this part is set to latticed, can reduces due to fricative heat, and the lower end sheet of latticed part 621 and latticed part 623 some area total not Long contact time main casing 20 and fixed scroll 50, be also just conducive to shedding in time of heat.
In addition, the top of moving scrollwork original paper 62 and fixed scroll element 52 is also made latticed.The latticed structure of swirl elements will make the edge of grid arrange along the helical of spiral type line.Its objective is block scrollwork sealed air chamber between across the gas channel of swirl elements sidewall.
The geometrical shape of grid can be square, circular, rectangle and other any shape, and the degree of depth of each lattice of described grid is can reach the function of the minimizing friction of grid between 0.05 millimeter to 5 millimeters, and be convenient to again manufacture, concrete size is depending on application.Certainly other size neither be used.The design of the linear dimension of grid in the plane vertical with main shaft will match with the moving radius of moving scrollwork, grid structure is made to do in moving motion at dynamic scrollwork, areas all in the plane of the inswept cooperation corresponding to it of energy, can not leave discontiguous surface, any point in the plane of cooperation corresponding to it.For this reason, the linear dimension of grid structure is not more than disturb radius.Such as, when moving radius is 1mm, the length of side of square net must not be greater than 1mm.Make the concave surface of grid can not leave discontiguous vestige in the plane of corresponding cooperation.
Fig. 4 is the amplification assumption diagram at C place in Fig. 3, as shown in Figure 4, in a preferred embodiment of the invention, each lattice of meshing 621 and meshing 623 the degree of depth more shallow, such as, can be between 0.5 millimeter to 2 millimeters, and interval between adjacent lattice is very narrow, such as, can be between 0.5 millimeter to 2 millimeters, as 0.8 millimeter, like this, meshing 621 and meshing 623 are in the smoother can ground very soon with main casing 20 and fixed scroll 50, and the interval between grid can be worn down, to reduce the surface friction drag that meshing 621 and meshing 623 may bring.Certainly, to those skilled in the art, the degree of depth of grid and the length at interval can be arranged as the case may be flexibly, and are not limited to the digital scope described in the present embodiment.
When not offering lip sealing groove, latticed part also 621 and meshing 623 can also be arranged on above-mentioned part, and only lip sealing groove 68 to be removed, not to repeat at this.
Wherein, shown in composition graphs 1 and Fig. 2, in the various embodiments described above, be also provided with an one-way valve 120 in fixed scroll 50, this passage residing for one-way valve 120 53 is through with air flue 56, the valve head 121 of one-way valve 120 points to air flue 562, the rear portion of valve head 121 has elastic element, and make when the gas pressure intensity of air flue 56 is less than a certain pressure interval sealed air chamber 81 of air flue 562 connection, valve head 121 is opened, the gas pressure of sealed air chamber 81 is introduced into pressure air chamber 624 by air flue 562,56 and 564.When at air flue 56, namely air flue 564 and the gas pressure intensity of pressure air chamber 624 are greater than a certain pressure interval that air flue 562 is communicated with--during sealed air chamber 81, this valve head 121 can the connection of shutoff air flue 56,564 and pressure air chamber 624 and air flue 562 and sealed air chamber 81.Valve head 121 rear portion has elastic element, makes described air flue under different pressure, described valve head 121 can by described air flue can conducting or close.Fig. 1 and air flue form illustrated in fig. 2 are only explanation the present embodiment, in practice, the structure of air flue 56 and one-way valve 54 specifically form is set, those skilled in the art can select flexibly.
By arranging one-way valve 120 in fixed scroll 50, control the through of air flue 56, only when the air pressure that air flue 56 is positioned at one end of sealed air chamber is greater than certain value, just through air flue 56, this makes it possible to, when the air pressure be communicated with is lower, keep the pressure in air chamber.
The present invention has the scroll fluid displacement device embodiment of steady pressure back pressure chamber, as shown in Figure 1 and Figure 2, the lower end sheet of moving scrollwork 61 contacts with a moving thrust plate 261, and form at least one back pressure air chamber 641, moving thrust plate 261 has by bearing 42 one of connecting main shaft 40 eccentric shaft portion that throw of eccentric is moving radius R or, when main shaft 40 rotates, moving thrust plate 261 is supported by the bearing disk 262 that fixes; Air flue 66 is provided with in moving scrollwork 61, air flue 66 can do relative motion in process at moving scrollwork 61 and fixed scroll 50, by unidirectional valve head 141, air flue 67 is communicated with back pressure air chamber 641 and a certain sealed air chamber 626, be provided with an one-way valve 140 in moving scrollwork 61, this passage residing for one-way valve 140 65 is through with air flue 66, and the valve head 141 of described one-way valve 140 points to air flue, when the gas pressure intensity of air flue 65 and 66 is less than the pressure of sealed air chamber 626, this valve head 141 can shutoff air flue 65.Wherein, the one-way valve 140 in embodiment can be similar with air flue 56 to above-mentioned one-way valve 120 to the plugging structure between air flue 66, therefore do not repeat at this.The effect of one-way valve 140 makes the pressure of air chamber 641 keep being substantially constant at a high position, the pressure difference that the elastic element that namely maximum pressure of sealed air chamber 626 deducts one-way valve 120 back produces.
Wherein, as shown in Figure 2, between the lower end sheet of moving scrollwork and described moving thrust plate, seal element 641 and seal element 643 is provided with, for the described back pressure chamber 641 of sealing.
Due to, do in the process of moving at moving scrollwork 61, back pressure air chamber 641 is communicated with sealed air chamber 626, and each sealed air chamber is in movement process from outside to inside, pressure increases gradually, and multiple sealed air chamber is in movement process, be communicated with back pressure air chamber 641 respectively, back pressure air chamber 641 internal pressure anticlimax can be caused, and the problem that air pressure in some cases in back pressure air chamber 641 is too high, and the value that the axially inclined power of compressor needs maintenance one more stable usually, and the pressure just changed greatly in back pressure air chamber 641 and metastable line shaft are to load force, line shaft can be caused excessive to the pressure reduction in load force and back pressure chamber, and then cause a larger axially power partially, therefore the damage of compressor can be caused, and the present invention has the scroll fluid displacement device of steady pressure back pressure chamber by arranging an one-way valve 140, and be open in the process that one-way valve 140 is increased gradually at sealed air chamber's pressure, and when sealed air chamber's pressure diminishes shutoff air flue 66, make the pressure remained steady in back pressure air chamber 641, also the axially partially power of compressor is just made usually can to keep a more stable value.
Wherein, in the above-described embodiments, all with air flue and air flue be one carry out describe, in fact air flue and air flue all can be many, and its shape is also not limited to above-mentioned situation.
In sum, the scroll fluid displacement device with steady pressure back pressure chamber provided by the invention, by the air flue in moving scrollwork being arranged an one-way valve, pressure in back pressure air chamber is not changed with the pressure height of the sealed air chamber communicated with it, and the power partially that maintains axially maintains in rational scope.
Above-described embodiment is available to those of ordinary skill in the art to realize or uses of the present invention; those of ordinary skill in the art can be without departing from the present invention in the case of the inventive idea; various modifications or change are made to above-described embodiment; thus protection scope of the present invention not limit by above-described embodiment, and should be the maximum magnitude meeting the innovation new feature that claims are mentioned.
Claims (7)
1. have a scroll fluid displacement device for steady pressure back pressure chamber, comprise, it is inner that a fixed scroll and a moving scrollwork are placed in a main casing, the swirl elements of the upper head plate of described moving scrollwork contacts with the swirl elements conjugation of described fixed scroll lower end sheet, and the described swirl elements of described moving scrollwork and described fixed scroll in the shape of a spiral or involute-type, the part be contacting and separating between the swirl elements of adjacent described moving scrollwork and the swirl elements of described fixed scroll, and described upper head plate and described lower end sheet, form at least one sealed air chamber jointly, the upper end portion of one main shaft connects the middle part of the lower end sheet of moving scrollwork by bearing, to drive described moving scrollwork to move, main casing offers suction port, so that extraneous gas is delivered to described sealed air chamber, described fixed scroll has exhaust chamber, discharges with the pressurized gas that will move in the described sealed air chamber at described fixed scroll center, the lower end sheet of described moving scrollwork contacts with a moving thrust plate, and forms at least one back pressure air chamber, and described moving thrust plate connects described main shaft by bearing, at least one air flue is provided with in described moving scrollwork, described air flue can do relative motion in process at described moving scrollwork and described fixed scroll, be communicated with described back pressure air chamber and described sealed air chamber, it is characterized in that, an one-way valve is also provided with in described moving scrollwork, passage residing for this one-way valve and described air flue through, the valve head of described one-way valve points to described air flue, described one-way valve can be opened with the rising of the pressure of the described sealed air chamber be connected with described air flue, described valve head rear portion has elastic element, make described air flue under different pressure, described valve head by described air flue conducting or can be closed.
2. device according to claim 1, is characterized in that, the upper head plate of described moving scrollwork contacts with described main casing in part and is provided with a circle lip sealing groove.
3. device according to claim 2, is characterized in that, the upper head plate of described moving scrollwork, and the part between described lip sealing groove and the swirl elements of described moving scrollwork is latticed.
4. device according to claim 1, is characterized in that, the upper-end surface of the swirl elements of described moving scrollwork and/or the swirl elements of described fixed scroll is set to latticed.
5. the device according to claim 3 or 4, is characterized in that, the degree of depth of each lattice of described grid is between 0.05 millimeter to 5 millimeters.
6. the device according to claim 3 or 4, is characterized in that, the linear dimension of the structure of described grid is not more than the moving radius of described moving scrollwork.
7. device according to claim 1, is characterized in that, be provided with at least one seal element between the lower end sheet of described moving scrollwork and described moving thrust plate, described at least one seal element is for sealing described back pressure chamber.
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| CN201110319117.2A CN103032320B (en) | 2011-09-30 | 2011-09-30 | There is the scroll fluid displacement device of steady pressure back pressure chamber |
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| CN201110319117.2A CN103032320B (en) | 2011-09-30 | 2011-09-30 | There is the scroll fluid displacement device of steady pressure back pressure chamber |
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| JPS6432091A (en) * | 1987-07-27 | 1989-02-02 | Matsushita Electric Ind Co Ltd | Scroll gas compressor |
| JPH02264180A (en) * | 1989-04-03 | 1990-10-26 | Hitachi Ltd | Scroll fluid machine |
| JPH04214978A (en) * | 1990-01-16 | 1992-08-05 | Carrier Corp | Scroll compressor |
| CN1335915A (en) * | 1998-10-13 | 2002-02-13 | 迈德技术公司 | Scroll-type fluid displacement device for vacuum pump application |
| JP2003239878A (en) * | 2002-02-14 | 2003-08-27 | Matsushita Electric Ind Co Ltd | Scroll compressor and method for driving the same |
| CN101725525A (en) * | 2008-10-15 | 2010-06-09 | Lg电子株式会社 | Scoroll compressor and refrigsrator having the same |
| CN201568300U (en) * | 2009-12-22 | 2010-09-01 | 大连三洋压缩机有限公司 | Vortex compressor |
| WO2011018648A2 (en) * | 2009-08-14 | 2011-02-17 | Edwards Limited | Scroll pump |
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2011
- 2011-09-30 CN CN201110319117.2A patent/CN103032320B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6432091A (en) * | 1987-07-27 | 1989-02-02 | Matsushita Electric Ind Co Ltd | Scroll gas compressor |
| JPH02264180A (en) * | 1989-04-03 | 1990-10-26 | Hitachi Ltd | Scroll fluid machine |
| JPH04214978A (en) * | 1990-01-16 | 1992-08-05 | Carrier Corp | Scroll compressor |
| CN1335915A (en) * | 1998-10-13 | 2002-02-13 | 迈德技术公司 | Scroll-type fluid displacement device for vacuum pump application |
| JP2003239878A (en) * | 2002-02-14 | 2003-08-27 | Matsushita Electric Ind Co Ltd | Scroll compressor and method for driving the same |
| CN101725525A (en) * | 2008-10-15 | 2010-06-09 | Lg电子株式会社 | Scoroll compressor and refrigsrator having the same |
| WO2011018648A2 (en) * | 2009-08-14 | 2011-02-17 | Edwards Limited | Scroll pump |
| CN201568300U (en) * | 2009-12-22 | 2010-09-01 | 大连三洋压缩机有限公司 | Vortex compressor |
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|---|---|
| CN103032320A (en) | 2013-04-10 |
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