CN100424352C - By-pass valve assembly of rotary displacement compressor - Google Patents
By-pass valve assembly of rotary displacement compressor Download PDFInfo
- Publication number
- CN100424352C CN100424352C CNB2004100197181A CN200410019718A CN100424352C CN 100424352 C CN100424352 C CN 100424352C CN B2004100197181 A CNB2004100197181 A CN B2004100197181A CN 200410019718 A CN200410019718 A CN 200410019718A CN 100424352 C CN100424352 C CN 100424352C
- Authority
- CN
- China
- Prior art keywords
- valve
- bypass
- valve assembly
- valve plate
- bypass valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention relates to a bypass valve assembly of a rotary compressor having variable capacity, specifically a bypass valve assembly of a rotary compressor using a modularized bypass valve to simplify assembling steps, increase production efficiency, prevent the leakage of coolant gas and simultaneously reduce dead volume. The bypass valve assembly of a rotary compressor having variable capacity provided by the present invention mainly comprises a valve plate, a valve guider and a fixed component, wherein the valve plate moves by using pressure difference to open and close bypass holes, the valve plate guider is closely arranged on a combined surface between the bypass holes and a mounting space part, and the valve plate is contained inside and guided to move toward a thickness direction; the fixed component is combined with the inner circumferential surface of the from end of the valve guider in order to modularize the valve plate and the valve guider.
Description
Technical field
The present invention relates to the bypass valve of compressor, more particularly, relate to the bypass valve assembly of the rotary compressor of volume-variable.
Background technique
In general, compressor is the machine of fluids such as compression refrigerant gas.According to the fluid compress mode, compressor can be divided into rotary compressor, reciprocal compressor and scroll compressor etc.
Rotary compressor possesses mechanism portion and compression mechanical part a casing inside, and mechanism portion and compression mechanical part are combined in the two ends of a running shaft respectively, the rotating force of mechanism portion is sent on the compression mechanical part, thus compression refrigerant in compression mechanical part.
Such rotary compressor is applicable on the air bells conditioners such as most of air conditioner.And nearest trend shows that along with the multifunction of air conditioner, the demand that can reduce the volume variable rotating compressor of power consumption and raising compression efficiency increases gradually.
Compressor in the past, the main rotation number of control compressor that adopts changes compressor capacity.But this need possess complicated controller (as changer system) etc., so the shortcoming that exists manufacture cost to rise.
Utilize bypass valve assembly stably to change compressor capacity and release cheap volume variable rotating compressor in order to solve above-mentioned shortcoming, to have used in the past.
Fig. 1 demonstrates the structure of volume variable rotating compressor in the past, and Fig. 2 is the air cylinder structure figure that in the past volume variable rotating compressor possesses bypass valve assembly.
Fig. 3 and Fig. 4 demonstrate bypass valve assembly structure and the operating state of Fig. 2, and Fig. 5 and Fig. 6 are that simple displaying goes out the cold media air flow path of volume variable rotating compressor in the past.
As shown in the figure, the main structure of volume variable rotating compressor in the past includes casing 10, mechanism portion and compression mechanical part.Wherein, casing 10 forms confined space in inside; Mechanism portion is arranged on casing 10 inner sides and rotating force is provided; The rotating force compression refrigerant that compression mechanical part utilizes mechanism portion to provide.
Mechanism portion 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 running shaft 13 bottoms are formed with eccentric part.
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 ringwise and be arranged on the inside of casing 10; Main bearing 15 and auxiliary bearing 16 cover the left and right sides of cylinder 14, form the inner space together; Running shaft 13 is pressed into 12 li of rotors, and is supported and transmit rotating force by main bearing 15 and auxiliary bearing 16; Rolling piston 17 is combined on the eccentric part of running shaft 13 and rotation, compression refrigerant when rotating in the inner space of cylinder 14; Outlet valve 19 is combined near the front end of main bearing 15 central authorities to open and close exhaust port 15a, controls the discharge of cold media air from the cylinder pressing chamber thus; Baffler 20 possesses the resonant chamber that can hold outlet valve 19, and is arranged on the outer side surface of main bearing 15.
In addition, 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 sidepieces, be provided with the outlet pipe 22 that pressurized gas is discharged to the outside at the upside of casing 10.
And, be formed with the by-pass hole 14c of a part of bypass that makes pressurized gas in the intakeport 14a opposite of cylinder 14 side, possessing at the outlet side of by-pass hole 14c has the installing space of the circular cross-sectional shape 14d of portion.The bypass valve assembly 24 that below will illustrate is installed in the 14d of installing space portion.
Meanwhile, sucking pipe 21 and outlet pipe 22 are connected with the 1st connecting tube 22a and the 2nd connecting tube 21a respectively.Described each connecting tube 21a, 22a connect the connecting tube 31 that is communicated with by-pass hole 14c by three-way valve 30.
Described three-way valve 30 optionally is communicated with connecting tube 31 according to the control of control device 32 with the 1st connecting tube 22a or the 2nd connecting tube 21a.
The main structure of bypass valve assembly 24 includes packing ring 25, valve thin slice 26, valve plate 27, valve 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 the 14d of installing space portion that cold media air from leaking; Valve thin slice 26 is close on the packing ring 25 and forms valve face; Valve plate 27 optionally is close on valve thin slice 26 valve faces opens or closes by-pass hole 14c, to regulate whether bypass of cold media air; Valve guiding 28 guides moving of valve plate 27 when valve plate 27 is accommodated in inside; Valve spring 29 elastic support and standing valve guiding 28.
Valve guiding 28 is made of valve body 28a and a plurality of guide element 28b.Valve body 28a has 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, and whole across a certain distance mutually formation around valve body 28a.So valve plate 27 can move along thickness direction between the inner peripheral surface of each guide element 28b, can discharge to connecting tube 31 by the air vent 28c between each guide element 28b at the cold media air that compresses in the pressing chamber C of cylinder 14.
In addition, after the gas via-hole 28d inflow of cold media air by valve body 28a central part of connecting tube 31 supplies, exert pressure, it is close on the valve thin slice 26 to valve plate 27.
Valve spring 29 is made of pressure spring, and the one end is fixedly installed in the spring groove 29a on the 14d of the installing space portion inner peripheral surface, elastic support valve plate 27.At this moment, it is big than other position diameter to be combined in the end of the valve spring 29 in the spring groove 29a.
So, possess the rotary compressor in the past of said structure, along with turn-on power in the mechanism portion, running shaft 13 rotations are connected rolling piston 17 on the running shaft 13 at eccentric rotation in the inner space of cylinder 14 and compression refrigerant gas.Like this, compressed high pressure refrigerant gas is discharged in the freezing cycle device by outlet pipe 22 through casing 10 inside.
During the compressor primary starting, as shown in Figure 5, when needing big refrigerating capacity (startup operation mode), under the 2nd connecting tube 21a closing state that sucking pipe 21 branches come out, control device 32 is regulated three-way valve 30, and the 1st connecting tube 22a is communicated with connecting tube 31.
At this moment, again supply to cylinder one side by the part in the high pressure refrigerant gas of outlet pipe 22 discharges by the 1st connecting tube 22a, and exert pressure to the valve plate 27 of bypass valve assembly 24 by the high pressure refrigerant gas that the 1st connecting tube 22a flows into, valve plate 27 is close on the valve face of valve thin slice 26, closes by-pass hole 14c thus.
So, the cold media air of the pressing chamber C compression that bypass valve assembly 24 can not leak at cylinder 14, and make cold media air be discharged to freezing cycle device through relief opening 15a and casing 10 inside by outlet pipe 22 all.
On the contrary, when compressor operation is stable, when promptly needing relatively little refrigerating capacity (normal operation pattern), as shown in Figure 6, under the 1st connecting tube 22a closing state that outlet pipe 22 branches come out, control device 32 is regulated three-way valve 30, and the 2nd connecting tube 21a and connecting tube 31 are communicated with.
At this moment, be discharged to the 2nd connecting tube 21a in the part of the cold media air of the pressing chamber C of cylinder 14 compression by bypass valve assembly 24, so the amount of the cold media air of discharging to casing 10 from cylinder 14 pressing chamber C reduces, 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 2nd connecting tube 21a that comes out from sucking pipe 21 branches and applies certain pressure to the valve plate 27 of bypass valve assembly 24, 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 when valve leads 28 side shiftings.
But, possessing the bypass valve assembly in the past 24 of said structure, complex structure not only also will be with each component parts of bolts assemblies, so there is the low shortcoming of manufacturing efficiency.
In addition, in the bypass valve assembly 24 in the past, valve plate 27 contacts by the face with valve thin slice 26 valve faces and closes or open by-pass hole 14c.Therefore, such structure has the worry that cold media air leaks, and the dead volume that valve thin slice 26 and packing ring 25 occur, has the shortcoming that compressor performance is descended.
Summary of the invention
In order to solve the shortcoming of above-mentioned prior art, the object of the present invention is to provide by the bypass valve modularization and can simplify the bypass valve assembly that can reduce the volume variable rotating compressor of dead volume when cold media air that assembling procedure is enhanced productivity and after preventing to compress leaks.
The bypass valve assembly of volume variable rotating compressor provided by the invention, be installed in the installing space that the by-pass hole of the bypass compression cold media air that forms with cylinder interior space one side is communicated with, selectivity opens and closes the capacity of by-pass hole with the change rotary compressor.
The main structure of related bypass valve assembly includes valve plate, valve guiding and fixed component.Wherein, valve plate utilizes pressure difference to move, and opens and closes by-pass hole; Valve 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 along thickness direction; Fixed component is combined in the inner peripheral surface of valve guide front end, makes valve plate and the valve modularization together that leads.
In addition, fixed component is the snap ring of energy radial contraction and resiliently deformable.
In order to prevent that valve plate breaks away from, the inner peripheral surface diameter of snap ring is little than the diameter of valve plate.
Meanwhile, snap ring is housed in the engagement groove corresponding with the snap ring width that valve guide front end inner peripheral surface forms and the elasticity combination.
The installation position of the snap ring of installing in engagement groove is a tabular surface.
On the junction plane of by-pass hole and installing space portion, to protrude in order being communicated with and to form and have a valve contacting part that makes the surface of contact that valve plate is close to by-pass hole.
On the valve contacting part, be formed with and prevent and the interactional step part of fixed component height.
Meanwhile, in order to contact with the valve plate line, the surface of contact of valve contacting part forms curved surface.
In addition, in the spring groove of installing space portion inner peripheral surface, fixedly install the valve spring of elastic support and standing valve guiding.
In valve guiding rear end whole protrude form make valve spring follow the valve guiding modular together be combined in simultaneously on the valve spring in conjunction with projection.
The bypass valve assembly of volume variable rotating compressor of the present invention can be simplified assembling procedure by the bypass valve modularization, enhances productivity, and prevents from can reduce dead volume when cold media air from leaking, and can improve compressor performance.
Description of drawings
Fig. 1 is a volume variable rotating compressor structural drawing in the past.
Fig. 2 is the air cylinder structure figure that in the past volume variable rotating compressor possesses bypass valve assembly.
Fig. 3 and Fig. 4 are bypass valve assembly structure and the operating state figure of Fig. 2.
Fig. 5 and Fig. 6 are the sketches of volume variable rotating compressor cold media air flow path 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 bypass valve assembly operating state figure of Fig. 7.
The symbol description of accompanying drawing major component:
14: cylinder 14c: by-pass hole
14d: installing space portion 29: valve spring
29a: spring groove 31: connecting tube
34: bypass valve assembly 34e: the valve contacting part
34f: step part 35: snap ring
36: valve plate 37: the valve guiding
37a: valve body 37b: guide element
37c: air vent 37d: exhaust port
37e: engagement groove 37f: in conjunction with projection
Embodiment
Specific embodiments of the invention are described with reference to the accompanying drawings.
Fig. 7 is the air cylinder structure figure that possesses the rotary compressor of bypass valve assembly of the present invention, and Fig. 8 and Fig. 9 are the bypass valve assembly structural drawing of Fig. 7.
In addition, Figure 10 is the bypass valve assembly operating state figure of Fig. 7.
In explanation process of the present invention, for clear and definite main idea of the present invention is omitted for the explanation of disclosed function and formation.
As shown in the figure, cylinder 14 inner sides that possess the rotary compressor of bypass valve assembly of the present invention are formed with the blade accepting groove 18a that makes blade 18 combinations, and possess in the inside of blade accepting groove 18a spring 18b is arranged, make blade 18 Elastic Contact on rolling piston 17.Blade 18 is to radially protruding and rotatably installing, and the outer circumferential face of touch scrolling piston 17 is separated into suction chamber and pressing chamber to the inner space of cylinder 14 thus.
In addition, inside one side of cylinder 14 is formed with the air-breathing 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 (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.
And, be formed with the by-pass hole 14c of a part of bypass that makes compression refrigerant gas in the opposite of cylinder 14 air-breathing 14a one side, possessing at the outlet side of by-pass hole 14c has the installing space in the toroidal cross section 14d of portion.Bypass valve assembly 34 of the present invention is installed in the 14d of installing space portion, and is illustrated below.
Meanwhile, sucking pipe and outlet pipe branch out the 1st connecting tube and the 2nd connecting tube separately.Described each connecting tube is connected by on three-way valve (not shown) and the connecting tube 31 that by-pass hole 14c is communicated with.
At this moment, described three-way valve optionally is communicated with connecting tube 31 according to the control of control device (not shown) with the 1st connecting tube 22a or the 2nd connecting tube 21a.
Valve guiding 37 is made of valve body 37a and a plurality of guide element 37b.Valve body 37a is communicated with by-pass hole 24c, is the hollow cylinder shape, and at one end is formed with the attachment face that valve plate 36 is installed; Guide element 37b is long than valve body 37a length, and whole across a certain distance mutually formation around valve body 37a.So, valve plate 36 with circular plate shape of certain diameter can be arranged between the inner peripheral surface of each guide element 37b and can move along thickness direction, and the cold media air of cylinder 14 pressing chamber C compression can be discharged to connecting tube 31 through by-pass hole 14c by the air vent 37c between each guide element 37b.
In addition, the cold media air of supplying with from connecting tube 31 by hole 37d by the gas that forms on valve guiding 37, the valve body 37a central position flows into the back and applies pressure to by-pass hole 14c direction for valve plate 36.
Described fixed component is can radial contraction and the snap ring 35 of resiliently deformable, and is formed with the engagement groove 37e corresponding with snap ring 35 width at the valve 37 front end inner peripheral surfaces that lead.Snap ring 35 is housed in the engagement groove 37e and the elasticity combination.
In addition, the inner peripheral surface diameter of snap ring 35 is little than the diameter of valve plate 36.According to such structure, the lead snap ring 35 of 37 front end combinations of valve can prevent that valve plate 36 is installed to valve guiding 37 inner backs and breaks away to the outside.
The installation position that is installed in the snap ring 35 in the engagement groove 37e forms tabular surface.According to such structure, snap ring 35 is close to the front end of valve guiding 37, prevents to follow when valve plate 36 breaks away from valve guiding 37 to form modularization together.So build-up member quantity reduces, simplify assembly process, can enhance productivity.
And possessing on the junction plane of by-pass hole 14c and the 14d of installing space portion has in order to be communicated with by-pass hole 14c and to protrude formation, and makes valve plate 36 be close to the valve contacting part 34e of surface of contact.Be formed with on the valve contacting part 34e and prevent and the highly interactional step part of snap ring 35.And for the line with valve plate 36 contacts, the surface of contact of valve contacting part 34e forms curved surface.
According to such structure, after valve contacting part 34e is installed on the modular bypass valve assembly 34, be positioned at the inside of valve guiding 37, there is not mutual effect of altitude with snap ring 35.So, the valve plate 36 that moves according to pressure difference opens and closes by-pass hole 14c by the line contact on valve contacting part 34e, can reduce the dead volume because of using packing ring and valve thin slice to occur in the past thus, the cold media air after preventing from simultaneously to compress leaks, and can improve compressor performance.
In addition, be installed as the valve spring 29 of elastic support valve guiding 37 at an end of valve guiding 37.Valve spring 29 usefulness pressure springs constitute, and the one end is fixedly installed in the spring groove 29a of the 14d of installing space portion inner peripheral surface elastic support valve guiding 37.The end of the valve spring 29 of combination in the spring groove 29a is big than other position diameter.
Be formed with the protruding 37f of combination that sets size valve whole protrusion the in 37 rear ends of leading, and valve spring 38 is by forming with valve guiding 37 modularization together in conjunction with protruding 37f.
The rotary compressor method of operation that possesses the bypass valve assembly 34 of said structure follows structure in the past identical, states so here no longer endure.
As mentioned above, for example understand possible embodiments of the present invention, but protection scope of the present invention not being limited in the aforesaid specific embodiment, be that the basis makes an explanation with the scope of claim record.
Claims (9)
1. the bypass valve assembly of a volume variable rotating compressor, be installed in the bypass compression installing space that afterwards by-pass hole of cold media air is communicated with that forms with cylinder interior space one side, selectivity opens and closes by-pass hole to change the capacity of rotary compressor, it is characterized in that: bypass valve assembly includes valve plate, valve guiding and fixed component; Valve plate utilizes pressure difference to move, and opens and closes by-pass hole; Valve 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 along thickness direction; Fixed component is the snap ring of energy radial contraction and resiliently deformable.
2. the bypass valve assembly of volume variable rotating compressor according to claim 1 is characterized in that, breaks away from order to prevent valve plate, and the inner peripheral surface diameter of snap ring is little than the diameter of valve plate.
3. the bypass valve assembly of volume variable rotating compressor according to claim 2 is characterized in that, snap ring is housed in the engagement groove corresponding with the snap ring width that valve guide front end inner peripheral surface forms and the elasticity combination.
4. the bypass valve assembly of volume variable rotating compressor according to claim 3 is characterized in that, the installation position that snap ring is installed in engagement groove is a tabular surface.
5. the bypass valve assembly of volume variable rotating compressor according to claim 1, it is characterized in that, also include on the junction plane of by-pass hole and installing space portion to protrude and form and make valve plate be close to the valve contacting part of surface of contact in order to be communicated with by-pass hole.
6. the bypass valve assembly of volume variable rotating compressor according to claim 5 is characterized in that, is formed with to prevent and the interactional step part of fixed component height on the valve contacting part.
7. the bypass valve assembly of volume variable rotating compressor according to claim 6 is characterized in that the valve contacting part forms curved surface with the surface of contact that the valve plate line contacts.
8. the bypass valve assembly of volume variable rotating compressor according to claim 1 is characterized in that, the valve spring elastic support that the valve guiding is installed by the spring groove that fixedly installs at the space portion inner peripheral surface is fixed.
9. the bypass valve assembly of volume variable rotating compressor according to claim 1 is characterized in that, in valve guiding rear end whole protrude form make valve spring follow the valve 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 |
|---|---|---|---|
| CNB2004100197181A CN100424352C (en) | 2004-06-21 | 2004-06-21 | By-pass valve assembly of rotary displacement compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197181A CN100424352C (en) | 2004-06-21 | 2004-06-21 | By-pass valve assembly of rotary displacement compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1712720A CN1712720A (en) | 2005-12-28 |
| CN100424352C true CN100424352C (en) | 2008-10-08 |
Family
ID=35718473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100197181A Expired - Fee Related CN100424352C (en) | 2004-06-21 | 2004-06-21 | By-pass valve assembly of rotary displacement compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100424352C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158856A (en) * | 1995-12-05 | 1997-06-17 | Matsushita Electric Ind Co Ltd | Scroll gas compressor |
| US5807081A (en) * | 1997-01-06 | 1998-09-15 | Carrier Corporation | Combination valve for screw compressors |
| JP2000303982A (en) * | 1999-04-22 | 2000-10-31 | Hitachi Ltd | Scroll compressor |
| CN1409015A (en) * | 2001-09-28 | 2003-04-09 | 丹福斯曼纽罗普公司 | Vortex compressor with variable volume |
-
2004
- 2004-06-21 CN CNB2004100197181A patent/CN100424352C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158856A (en) * | 1995-12-05 | 1997-06-17 | Matsushita Electric Ind Co Ltd | Scroll gas compressor |
| US5807081A (en) * | 1997-01-06 | 1998-09-15 | Carrier Corporation | Combination valve for screw compressors |
| JP2000303982A (en) * | 1999-04-22 | 2000-10-31 | Hitachi Ltd | Scroll compressor |
| CN1409015A (en) * | 2001-09-28 | 2003-04-09 | 丹福斯曼纽罗普公司 | Vortex compressor with variable volume |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1712720A (en) | 2005-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3412914B1 (en) | Scroll compressor | |
| CN1993555B (en) | Capacity variable device for rotary compressor and driving method of air conditioner having the same | |
| CN106662104B (en) | The screw compressor of capacity regulating | |
| CN103573625B (en) | Rotary compressor with variable volume | |
| EP3995697B1 (en) | Scroll compressor | |
| KR102542439B1 (en) | Compressors and air conditioners | |
| CN202707496U (en) | Variable-capacity rotary compressor | |
| EP2093427B1 (en) | Capacity Varying Device for a Scroll Compressor | |
| CN101828038A (en) | Scroll compressor | |
| KR100724452B1 (en) | Modulation type rotary compressor | |
| CN100424352C (en) | By-pass valve assembly of rotary displacement compressor | |
| CN209457982U (en) | Expansion machine | |
| CN105986997B (en) | Scroll compressor having a plurality of scroll members | |
| KR20100060785A (en) | Rotary compressor | |
| US20190211681A1 (en) | Backpressure passage rotary compressor | |
| CN100394033C (en) | By-pass valve assembly of rotary and capacity-variable compressor | |
| EP2317142B1 (en) | Rotary compressor | |
| CN208330741U (en) | The Horizontal vortex refrigeration compressor adjusted with interior volume specific ratio | |
| CN212055114U (en) | Scroll compressor and air conditioner with same | |
| US20210071663A1 (en) | Motor operated compressor | |
| CN100424355C (en) | Discharge valve device of rotary compressor | |
| CN100394034C (en) | By-pass valve combination of rotary and capacity-variable compressor | |
| CN100394032C (en) | By-pass valve combination of rotary and capacity-variable compressor | |
| KR100575838B1 (en) | Bypass valve assembly for capacity variable type rotary compressor | |
| KR102386647B1 (en) | Scroll compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20110621 |