CN1712710A - By-pass valve assembly of rotary and capacity-variable compressor - Google Patents
By-pass valve assembly of rotary and capacity-variable compressor Download PDFInfo
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- CN1712710A CN1712710A CN 200410019702 CN200410019702A CN1712710A CN 1712710 A CN1712710 A CN 1712710A CN 200410019702 CN200410019702 CN 200410019702 CN 200410019702 A CN200410019702 A CN 200410019702A CN 1712710 A CN1712710 A CN 1712710A
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Abstract
The invention is about the by-pass valve module for the variable capability rotary compressor. The main module includes the valve plate, the leading of valve plate, the fixed parts and the elastic lug boss. The valve plate is to control the by-pass prot by the pressure difference; the leading of the valve plate is to uptake the valve plate and lead the plate to move to the thick direction; the fixed parts can make the plate and the leading of the plate modularity and the elastic lug boss is to fix the union of the fixed parts and the valve plate leading. The invention can simple the process of the composing, so it improve the efficient and avoid leaking the coolant gas, also it can decrease the dead capacity.
Description
Technical field
The invention belongs to rotary compressor, particularly relate to a kind of bypass valve assembly about variable capacity rotary compressor.
Background technique
Generally, compressor is the machine of fluids such as compression refrigerant gas, and compressor can be divided into rotary compressor according to the fluid compress mode, reciprocal compressor, scroll compressor etc.
Rotary compressor possesses motor and compressor a casing inside, and motor and compressor are combined in a rotating shaft terminal separately, and the rotating force of motor is sent on the compressor, makes the compressor compresses refrigerant thus.
Rotary compressor is applicable to most of air conditioner.Nearest trend is the multifunction along with air conditioner, and the demand that can reduce the variable capacity rotary compressor of power consumption and raising compression efficiency increases gradually.
For this reason, the main in the past rotation number of control compressor that adopts changes compressor capacity.But at this time need to possess complicated controller such as reverse change of current system etc., so the shortcoming that has manufacture cost to rise.
In order to solve above-mentioned shortcoming, use usually and utilize bypass valve assembly to change compressor capacity, and cheap variable capacity rotary compressor.
Accompanying drawing 1 is the figure of variable capacity rotary compressor structure in the past, and Fig. 2 is the figure that in the past variable capacity rotary compressor possesses the air cylinder structure of bypass valve assembly.
Fig. 3 and Fig. 4 are the bypass valve assembly structure of Fig. 2 and the figure of operating state, and Fig. 5 and Fig. 6 are the figure of the cold media air flow path of variable capacity rotary compressor in the past.
Variable capacity rotary compressor in the past is as figure, and its main structure includes casing (10), motor and compressor.Wherein, casing (10) forms confined space in inside; Motor is arranged on the inner side of casing (10) and rotating force is provided; The rotating force compression refrigerant that compressor utilizes motor to provide.
Motor is to be made of stator (11), rotor (12) and running shaft (13).Stator (11) is fixedly mounted on the inside of casing (10); Rotor (12) is rotatably installed in the inside of stator (11); Running shaft (13) rotatably is combined on the axle center of rotor (12) and forms one, and is formed with eccentric part in the bottom.
The main structure of compression mechanical part includes cylinder (14), main bearing (15) and auxiliary bearing (16), running shaft (13), rolling piston (17), outlet valve (19) and baffler (20).Wherein, cylinder (14) forms annular and is arranged on the inside of casing (10); The left and right sides that main bearing (15) and auxiliary bearing (16) cover cylinder (14) forms the inner space together; Running shaft (13) is pressed into rotor (12) lining, and is supported and the transmission rotating force by main bearing (15) and auxiliary bearing (16); Rolling piston (17) is combined on the eccentric part of running shaft (13) and rotates, and when circling round in the inner space of cylinder (14) compression refrigerant; Near discharge port (15a) front end that outlet valve (19) is combined in main bearing (15) central authorities opens and closes discharge port (15a), controls thus from the cold media air of pressing chamber and discharges; Baffler (20) possesses the resonant chamber that can hold outlet valve (19), and is arranged on the outer side surface of main bearing (15).
Blade (18) radially protrudes and telescopically is installed, and the outer circumferential face that contacts thus at rolling piston (17) is separated into suction chamber (S) and pressing chamber (C) to the inner space.Form promising blade accepting groove (18a) in the inside of cylinder (a 14) side in conjunction with blade (18).Possess to have in the inside of blade accepting groove (18a) and make the spring (18b) of blade (18) Elastic Contact on rolling piston (17).
Inside one side of cylinder (14) is formed with the intakeport (14a) that refrigerant is flowed into, and is formed with the relief opening (14b) that the refrigerant after making compression is discharged along circumferencial direction phase root piece accepting groove (18a) at the opposite side of intakeport (14a).
On intakeport (14a), be combined with the sucking pipe (21) that is connected with the gas-liquid separator (not shown) of casing (10) sidepiece, be combined with the outlet pipe (22) that pressurized gas is discharged to the outside at the upside of casing (10).
Be formed with the by-pass hole (14c) of a part of bypass that makes pressurized gas in intakeport (14a) opposite of cylinder (a 14) side, possess at the outlet side of by-pass hole (14c) that section shape is arranged is circular installing space portion (14d).Bypass valve assembly (24) is installed in installing space portion (14d),
Sucking pipe (21) and outlet pipe (22) divide separately the 1st bypass tube (22a) and the 2nd bypass tube (21a).(21a 22a) is connected by on 3 logical valves (30) and the connecting tube (31) that by-pass hole (14c) is communicated with each bypass tube
At this moment, 3 logical valves (30) optionally are communicated with connecting tube (31) according to the control of control device (32) with the 1st bypass tube (22a) or the 2nd bypass tube (21a).
The main structure of bypass valve assembly (24) includes packing ring (25), valve thin slice (26), valve plate (27), valve plate guiding (28) and valve spring (29).Wherein, packing ring (25) is close to and prevents on the junction plane of by-pass hole (14c) and installing space portion (14d) that cold media air from leaking; Valve thin slice (26) is close to packing ring (25) and goes up the formation valve face; Valve plate (27) optionally is close on valve thin slice (26) valve face opens or closes by-pass hole (14c), regulates whether bypass of cold media air; Valve plate guiding (28) guides moving of valve plate (27) when valve plate (27) is accommodated in inside; Valve spring (29) elastic support and fixing valve plate lead (28).
Packing ring (25) and valve thin slice (26) form the corresponding circular plate shape of diameter with installing space portion (14d), and in the central portion be formed with the through hole that is communicated with each by-pass hole (14c) (25a, 26a).
Valve plate guiding (28) is made of valve body (28a) and a plurality of guide element (28b).Valve body (28a) is the hollow cylinder shape that is communicated with by-pass hole (14c), forms the attachment face that valve plate (27) is installed at the one end; Guide element (28b) is long than valve body (28a) length, and whole across a certain distance mutually formation around valve body (28a).Valve plate (27) moves to thickness direction between the inner peripheral surface of each guide element (28b), and the cold media air that the pressing chamber (C) in cylinder (14) compresses is discharged to connecting tube (31) by the air vent (28c) between each guide element (28b).
After gas via-hole (28d) inflow of cold media air by valve body (28a) central part of connecting tube (31) supply, exert pressure to valve plate (27), it is close on the valve thin slice (26).
Valve spring (29) forms with compressing spring, and the one end is fixedly installed on spring groove (29a) the lining elastic support valve plate (27) on installing space portion (14d) inner peripheral surface.At this moment, it is big than other position diameter to be combined in the end of valve spring (29) of spring groove (29a) lining.
So, possess the rotary compressor in the past of structure, along with the motor turn-on power, running shaft (13) rotation is connected rolling piston (17) on the running shaft (13) in the eccentric rotation in the inner space of cylinder (14) and compression refrigerant gas.Compressed like this high pressure refrigerant gas is discharged in the freezing cycle device by outlet pipe (22) through the inner back of casing (10).
During the compressor primary starting, when promptly needing big refrigerating capacity (power running pattern), as shown in Figure 5, under 2 bypass tubes (21a) closing state that sucking pipe (21) branch comes out, control device (32) is regulated 3 logical valves (30), and the 1st bypass tube (22a) and connecting tube (31) are communicated with.Again supply to cylinder side by the part in the high pressure refrigerant gas of outlet pipe (22) discharge by the 1st bypass tube (22a), exert pressure to the valve plate (27) of bypass valve assembly (24) by the high pressure refrigerant gas that the 1st bypass tube (22a) flows into, valve plate (27) is close on the valve face of valve thin slice (26), closes by-pass hole (14c) thus.
Bypass valve assembly (24) can not leak the cold media air in pressing chamber (C) compression of cylinder (14), and port (15a) and casing (10) are inner to be discharged to freezing cycle device by outlet pipe (22) to cold media air through discharging all.
On the contrary, when the running of compressor is stable, when promptly needing relatively little refrigerating capacity (maintenance operation mode), as shown in Figure 6, under the 1st bypass tube (22a) closing state that outlet pipe (22) branch comes out, control device (32) is regulated 3 side's valves (30), and the 2nd bypass tube (21a) and connecting tube (31) are communicated with.
According to such structure, the part of the cold media air that the pressing chamber (C) in cylinder (14) compresses is discharged to the 2nd bypass tube (21a) by bypass valve assembly (24), so reduce from the amount of cylinder (14) pressing chamber (C) to the cold media air of casing (10) discharge, the refrigerating capacity of freezing cycle device descends.
At this moment, the low pressure refrigerant gas that flows into by sucking pipe (21) flow into the valve plate (27) of the 2nd bypass tube (21a) to bypass valve assembly (24) that comes out from sucking pipe (21) branch and applies certain pressure, but the pressure that is applied to valve plate (27) is low than the pressure of pressing chamber (C), so valve plate (27) is opened by-pass hole (14c) in the time of valve plate guiding (28) side shifting.
The bypass valve assembly in the past (24) that possesses said structure, complex structure not only, each component parts will be used bolts assemblies, so the low shortcoming of producibility is arranged.
In addition, in the bypass valve assembly in the past (24), valve plate (27) contacts by the valve face face with valve thin slice (26) and closes by-pass hole (14c), perhaps open by-pass hole (14c), so worry that such structure has cold media air to leak, and the dead volume that valve thin slice (26) and packing ring (25) degree occur, the shortcoming that compressor performance descends.
Summary of the invention
The present invention provides a kind of in order to solve the technical problem that exists in the above-mentioned technology to have by the bypass valve modularization, can simplify assembling procedure, enhance productivity, and the cold media air after preventing to compress can reduce the bypass valve assembly of the variable capacity rotary compressor of dead volume when leaking.
The present invention for the technological scheme that solves the technical problem that exists in the above-mentioned technology and take is:
The by-pass hole of the cold media air bypass after the cylinder interior space of rotary compressor one side forms compression, be installed in installing space that by-pass hole is communicated with in selectivity open and close by-pass hole and change in the bypass valve assembly of capacity of rotary compressor, its main structure includes valve plate, valve plate guiding, fixed component and elastic member; Wherein valve plate utilizes pressure difference to flow, and opens and closes by-pass hole; Valve plate guiding is close on the junction plane that is installed in by-pass hole and installing space portion, and accommodates valve plate in inside and guide valve plate that it is moved to thickness direction; Fixed component is formed with the ventilating hole that is communicated with by-pass hole, and is combined in the inner peripheral surface of valve plate guide front end, makes valve plate and the valve plate modularization together that leads; Elastic bumps portion is for the bonding state of fixedly fixed component and valve plate guiding, prolongs and whole the protrusion forms along bonding position in the fixed component peripheral surface, with valve plate guiding outer circumferential face Elastic Contact.Elastic member is a plurality of along possessing across a certain distance on every side of fixed component; The snap ring shape that elastic member can wrap along peripheral direction at the outer circumferential face of pilot valve comprehensively; On inner peripheral surface certain of fixed component, protrude the projection that forms, the projecting slot of the recessed formation of relative position on the outer circumferential face of valve plate guiding; Projection or projecting slot are formed on elastic bumps portion inner face; On the junction plane of by-pass hole and installing space portion, protrude formation, and form the valve contacting part that makes the surface of contact that valve plate is close in order to be communicated with by-pass hole; Forming promising preventing on the valve contacting part interferes the section of height poor with fixed component mutually; The valve contacting part forms curved surface in order to contact its surface of contact with the valve plate line; Prolong the whole extension lug boss that forms that protrudes for preventing that valve plate breaks away from ventilating hole along diametric(al); Spring groove by installing space portion inner peripheral surface fixedly installs and the fixing valve spring of valve plate guiding of elastic support; In valve plate guiding rear end whole protrude form make valve spring follow the valve plate guiding modular together be combined in simultaneously on the valve spring in conjunction with projection.
Advantage and good effect that the present invention has are: according to the bypass valve assembly of variable capacity rotary compressor of the present invention, can simplify assembling procedure by the bypass valve modularization, can enhance productivity, prevent to reduce dead volume when cold media air from leaking, can improve compressor performance.
Description of drawings
Fig. 1 is the figure of variable capacity rotary compressor structure in the past.
Fig. 2 is the figure that in the past variable capacity rotary compressor possesses the air cylinder structure of bypass valve assembly.
Fig. 3 and Fig. 4 are the bypass valve assembly structure of Fig. 2 and the figure of operating state.
Fig. 5 and Fig. 6 are the figure of the cold media air flow path of variable capacity rotary compressor in the past.
Fig. 7 is the structural drawing that possesses the rotary compressor cylinder of bypass valve assembly of the present invention.
Fig. 8 and Fig. 9 are the bypass valve assembly structural drawing of Fig. 7.
Figure 10 is the figure of the bypass valve assembly operating state of Fig. 7.
Figure 11 and Figure 12 are the figure according to another embodiment of bypass valve assembly of the present invention.
Main symbol description
24: cylinder 24c: by-pass hole
24d: the 24e of installing space portion: valve contacting part
24f: section differs from 31: connecting tube
34: bypass valve assembly 35: fixed component
35a: gas passes through hole 35b: elastic bumps portion
35c: hang lug boss 35d: projection
36: valve plate 37: the valve plate guiding
37a: valve body 37b: guide element
37c: air vent 37d: exhaust port
37e: in conjunction with protruding 37f: engagement groove
38: valve spring 38a: spring groove
Embodiment
For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Fig. 7 is the figure that possesses the rotary compressor cylinder structure of bypass valve assembly of the present invention, and Fig. 8 and Fig. 9 are the bypass valve assembly structural drawing of Fig. 7.
Figure 10 is the figure of the bypass valve assembly operating state of Fig. 7.
Figure 11 and Figure 12 are the figure according to another embodiment of bypass valve assembly of the present invention.
In explanation process of the present invention, for clear and definite main idea of the present invention has here been omitted for the explanation of disclosed function and formation.
The cylinder (24) that possesses the rotary compressor of bypass valve assembly of the present invention as shown in the figure, be formed with the blade accepting groove (28a) that makes blade (28) combination in an inner side, possessing in the inside of blade accepting groove (28a) has spring (28b), makes blade (18) Elastic Contact on rolling piston (27).Blade (28) is to radially protruding and can installing with circling round, and the outer circumferential face that contacts thus at rolling piston (27) is separated into suction chamber and pressing chamber to the inner space.
Inside one side of cylinder (24) is formed with the intakeport (24a) that refrigerant is flowed into, and is formed with the relief opening (24b) that the refrigerant after making compression is discharged along circumferencial direction phase root piece accepting groove (28a) at the opposite side of intakeport (24a).
On intakeport (24a), be combined with the sucking pipe (not shown) that is connected with the gas-liquid separator (not shown) of casing (not shown) sidepiece, be combined with the outlet pipe (not shown) that the cold media air after making compression is discharged to the outside at the upside of casing (10).
Be formed with the by-pass hole (24c) of a part of bypass that makes compression refrigerant gas in the opposite of cylinder (24) intakeport (14a) side, possessing at the outlet side of by-pass hole (24c) has the installing space of circular cross-sectional shape portion (24d).Bypass valve assembly (34) is installed in the installing space portion (24d), to being described as follows of it.
Sucking pipe (34) and outlet pipe (34) branch out the 1st bypass tube and the 2nd bypass tube (not shown) separately.Each bypass tube is connected by on 3 logical valves (not shown) and the connecting tube (31) that by-pass hole (24c) is communicated with.
3 logical valves optionally are communicated with connecting tube (31) according to the control of control device (not shown) with the 1st bypass tube (22a) or the 2nd bypass tube (21a).
Bypass valve assembly of the present invention (34) includes valve plate (36), valve plate guiding (37), fixed component (35) and elastic bumps portion (35b).Wherein, valve plate (36) utilizes pressure difference to flow, and opens and closes by-pass hole (24c); Valve plate guiding (37) is close on the junction plane that is installed in by-pass hole (24c) and installing space portion (24d), accommodates valve plate (36) in inside and guides valve plate (36) that it is moved to thickness direction; Fixed component (35) is formed with the ventilating hole (35a) that is communicated with by-pass hole (24c), and is combined in the outer circumferential face of valve plate guiding (37) front end, makes valve plate (36) and valve plate guiding (37) modularization together; Elastic bumps portion (35b) is for the bonding state of fixedly fixed component (35) and valve plate guiding (37), prolongs and whole the protrusion forms along bonding position in fixed component (35) peripheral surface, in valve plate guiding (37) outer circumferential face Elastic Contact.
Valve plate guiding (37) is made of valve body (37a) and a plurality of guide element (37b).Valve body (37a) is the hollow cylinder shape that is communicated with by-pass hole (24c), and at one end forms the attachment face of promising installation valve plate (36); Guide element (37b) is long than valve body (37a) length, and whole across a certain distance mutually formation around valve body (37a).So, circular plate shape valve plate (36) with certain diameter is arranged between the inner peripheral surface of each guide element (28b) and can moves to thickness direction, and can discharge to connecting tube (31) through by-pass hole (24c) after the cold media air of pressing chamber (C) compression of cylinder (14) is by the air vent (37c) between each guide element (37b).
In addition, the cold media air of supplying with from connecting tube (31) by the gas via-hole (28d) that forms on valve plate guiding (37) valve body (37a) central part flows into the back and applies pressure to by-pass hole (24c) direction for valve plate (36).
Fixed component (35) forms hood-shaped shape and covers the outer circumferential face part of valve plate guiding (37) front end and combination.Be housed in inner valve plate (36) of valve plate guiding (37) and valve plate guiding (37) composition moduleization together, reduce number of components, simplify assembly process simultaneously, can enhance productivity.
At this moment, on fixed component (35), be formed with the ventilating hole (35a) that is communicated with by-pass hole (24c); Be formed with the extension lug boss (35c) of institute's Fixed width degree along the whole protrusion of diametric(al) at ventilating hole (35a) inner peripheral surface; According to hanging lug boss (35c), ventilating hole (35a) forms than the little diameter of valve plate (36) diameter, and valve plate (36) hangs on the lug boss (35c), and can prevent that fixed component (35) from combining the back with valve plate guiding (37) and breaking away to the outside.
On fixed component (35), form the elastic bumps portion (35b) of the bonding state of fixing and valve plate guiding (37), elastic bumps portion (35b) forms along whole protrusion of bonding position at the inner peripheral surface of fixed component (35), Elastic Contact is at the outer circumferential face of valve plate guiding (37), and fixedly fixed component (35) is combined in state on the valve plate guiding (37).
Elastic bumps portion (35b) should possess a plurality of along the periphery of fixed component (35) certain spacing of being separated by.
Another embodiment of the present invention forms the snap ring shape that can comprehensively wrap along its periphery in fixed component (35) integrally formed elastic bumps portion (35b) at the outer circumferential face of valve plate guiding (37) as shown in Figure 11.Such structure can improve fixed component (35) combination force to elastic bumps portion (35b).
On the fixed component that as above possesses elastic bumps portion (35b) (35), be formed with elastic bumps portion (35b) and be the fixing projection (35d) of fixed component (35) bonding state or projecting slot (35f) diagrammatic sketch not more effectively together.
Both, protruded on certain in the outer circumferential face of the inner peripheral surface of fixed component (35) and valve plate guiding (37) and be formed with projection (35d), located the projecting slot (37f) of the promising fixed lobe of recessed formation (35d) at another.
Projection (35d) or projecting slot (35f) can certainly be formed on the inner face of elastic bumps portion (35b).
On the junction plane of by-pass hole (24c) and installing space portion (24d), to possess to have and to protrude formation in order being communicated with, and form the valve contacting part (24e) that makes the surface of contact that valve plate (36) is close to by-pass hole (24c).Valve contacting part (24e) go up to form promising preventing and the influence each other offset (24f) of height of snap ring (35), and the surface of contact that contact with valve plate (36) for the line contact formation curved surface.
According to such structure, valve contacting part (24e) is installed in the inside that can be positioned at valve plate guiding (37) after modular bypass valve assembly (34) is gone up, and does not highly interfere each other with snap ring (35).Go up and open and close by-pass hole (24c) by these line contacts at valve contacting part (24e) according to the valve plate (36) that pressure difference flows, can reduce dead volume in the past thus because of using packing ring and valve thin slice to occur, cold media air after preventing from simultaneously to compress leaks, and can improve compressor performance.
Be installed as the valve spring (38) of elastic support valve plate guiding (37) at an end of valve plate guiding (37).Valve spring (38) forms with compressing spring, and the one end is fixedly installed on spring groove (38a) the lining elastic support valve plate guiding (37) of installing space portion (24d) inner peripheral surface.At this moment, the end of the valve spring (38) of spring groove (38a) lining combination is big than other position diameter.
In valve plate guiding (37) rear end whole protrude be formed with institute's sizing in conjunction with projection (37e), and valve spring (38) by in conjunction with projection (37e) with valve plate lead (37) form modularization together.
Follow structure in the past identical by the compressor operation method that the bypass valve assembly (34) that possesses structure carries out, so repeat no more here.
As above, for example understand possible embodiments of the present invention, but scope of the present invention can not be limited to as above in the specific embodiment, be that the basis makes an explanation with the category of putting down in writing in the claim scope.
Claims (11)
1, a kind of bypass valve assembly of variable capacity rotary compressor, be installed in the installing space that is communicated with the by-pass hole of cold media air bypass after cylinder interior space one side of rotary compressor forms compression, selectivity opens and closes by-pass hole, it mainly comprises and utilizes pressure difference to move, and opens and closes the valve plate of by-pass hole; Be close on the junction plane that is installed in by-pass hole and installing space portion, and the valve plate guiding of accommodating valve plate and guiding valve plate that it is moved to thickness direction in inside; Be formed with the ventilating hole that is communicated with by-pass hole, and be combined in the outer circumferential face of valve plate guide front end, make the modular together fixed component of valve plate and valve plate guiding; It is characterized in that being arranged on the fixed component peripheral surface, prolong and whole the protrusion forms along bonding position, with the elastic bumps portion of valve plate guiding outer circumferential face Elastic Contact for the bonding state of fixedly fixed component and valve plate guiding;
2, the bypass valve assembly of variable capacity rotary compressor according to claim 1 is characterized in that elastic member is a plurality of along possessing across a certain distance of fixed component on every side.
3, the bypass valve assembly of variable capacity rotary compressor according to claim 1 is characterized in that elastic member forms along the snap ring shape that peripheral direction wraps the valve plate guiding comprehensively at the outer circumferential face of valve plate guiding.
4, the bypass valve assembly of variable capacity rotary compressor according to claim 1 is characterized in that protruding the projection that forms on inner peripheral surface certain of fixed component the projecting slot of the recessed formation of relative position on the outer circumferential face of valve plate guiding.
5, the bypass valve assembly of variable capacity rotary compressor according to claim 4 is characterized in that projection or projecting slot are formed on elastic bumps portion inner face.
6, the bypass valve assembly of variable capacity rotary compressor according to claim 1, it is characterized in that on the junction plane of by-pass hole and installing space portion protruding formation, and form the valve contacting part that makes the surface of contact that valve plate is close in order to be communicated with by-pass hole.
7, the bypass valve assembly of variable capacity rotary compressor according to claim 6 is characterized in that forming promising preventing and interferes the section of height poor mutually with fixed component on the valve contacting part.
8, according to the bypass valve assembly of claim 6 or 7 described variable capacity rotary compressors, it is characterized in that the valve contacting part in order to contact with the valve plate line, its surface of contact forms curved surface.
9, the bypass valve assembly of variable capacity rotary compressor according to claim 1 is characterized in that prolonging the whole extension lug boss that forms that protrudes for preventing that valve plate breaks away from ventilating hole along diametric(al).
10, the bypass valve assembly of variable capacity rotary compressor according to claim 1 is characterized in that the valve spring by the spring groove at installing space portion inner peripheral surface fixedly installs and the elastic support valve plate leads.
11, the bypass valve assembly of variable capacity rotary compressor according to claim 1, it is characterized in that in valve plate guiding rear end whole protrude form make valve spring follow the valve plate guiding modular together be combined in simultaneously on the valve spring in conjunction with projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197020A CN100394033C (en) | 2004-06-21 | 2004-06-21 | By-pass valve assembly of rotary and capacity-variable compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197020A CN100394033C (en) | 2004-06-21 | 2004-06-21 | By-pass valve assembly of rotary and capacity-variable compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1712710A true CN1712710A (en) | 2005-12-28 |
| CN100394033C CN100394033C (en) | 2008-06-11 |
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ID=35718463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100197020A Expired - Fee Related CN100394033C (en) | 2004-06-21 | 2004-06-21 | By-pass valve assembly of rotary and capacity-variable compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100394033C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106573157A (en) * | 2014-08-13 | 2017-04-19 | 株式会社山凊 | Valve assembly having provided bypass channel, and pressure regulator, for air respirator, having same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59192892A (en) * | 1983-04-15 | 1984-11-01 | Hitachi Ltd | Capacity control mechanism for rotary compressor |
| JPH11324950A (en) * | 1998-05-19 | 1999-11-26 | Mitsubishi Electric Corp | Scroll compressor |
| FR2830291B1 (en) * | 2001-09-28 | 2004-04-16 | Danfoss Maneurop S A | SPIRAL COMPRESSOR, OF VARIABLE CAPACITY |
-
2004
- 2004-06-21 CN CNB2004100197020A patent/CN100394033C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106573157A (en) * | 2014-08-13 | 2017-04-19 | 株式会社山凊 | Valve assembly having provided bypass channel, and pressure regulator, for air respirator, having same |
| CN106573157B (en) * | 2014-08-13 | 2021-04-30 | 株式会社翰科来福开恩 | Valve assembly with circuitous flow path and pressure regulator for air respirator with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100394033C (en) | 2008-06-11 |
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