CN111255693A - Cylinder assembly, compressor and air conditioner - Google Patents

Cylinder assembly, compressor and air conditioner Download PDF

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Publication number
CN111255693A
CN111255693A CN202010136945.1A CN202010136945A CN111255693A CN 111255693 A CN111255693 A CN 111255693A CN 202010136945 A CN202010136945 A CN 202010136945A CN 111255693 A CN111255693 A CN 111255693A
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CN
China
Prior art keywords
cylinder
exhaust
exhaust port
mounting groove
baffle
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.)
Pending
Application number
CN202010136945.1A
Other languages
Chinese (zh)
Inventor
胡余生
魏会军
徐嘉
王珺
刘靖
梁社兵
吴健
朱红伟
杨欧翔
余冰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Original Assignee
Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Green Refrigeration Technology Center Co Ltd of Zhuhai filed Critical Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority to CN202010136945.1A priority Critical patent/CN111255693A/en
Publication of CN111255693A publication Critical patent/CN111255693A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/10—Stators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The application provides a cylinder assembly, compressor and air conditioner, including first cylinder and second cylinder, be provided with first gas vent and second gas vent on the first cylinder at least, be provided with third gas vent and fourth gas vent on the second cylinder at least, first gas vent sets up on the lateral wall between two terminal surfaces of first cylinder, the third gas vent sets up on the lateral wall between two terminal surfaces of second cylinder. The cylinder assembly, the compressor and the air conditioner can effectively reduce deformation of crankshaft deflection during high-frequency operation of the compressor, and stability of operation of the compressor is guaranteed.

Description

Cylinder assembly, compressor and air conditioner
Technical Field
The application belongs to the technical field of air conditioning, and particularly relates to an air cylinder assembly, a compressor and an air conditioner.
Background
The exhaust resistance loss is large when the rotor compressor of the rotor compressor operates at high frequency, a multi-exhaust structure design is generally adopted for improving the high-frequency performance of the rotor compressor, and the scheme is commonly a single-cylinder double-exhaust scheme and a double-cylinder four-exhaust scheme. The conventional dual-rotor four-exhaust compressor is characterized in that two increased exhaust structures are arranged at the partition plate, an original single-layer partition plate is widened and divided into an upper partition plate and a lower partition plate, a lower exhaust structure for an upper cylinder is arranged on the upper partition plate, and an upper exhaust structure for a lower cylinder is arranged on the lower partition plate. However, the structure causes the distance between the upper cylinder and the lower cylinder to be larger, and the counterweight of the main balance block and the auxiliary balance block is larger, so that the deflection deformation of the crankshaft is larger when the compressor runs at high frequency, and the running stability of the compressor is seriously influenced.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in providing a cylinder assembly, compressor and air conditioner, can effectively reduce the deformation of the bent axle amount of deflection when the compressor high frequency operation, has guaranteed the stability of compressor operation.
In order to solve the above problem, the present application provides a cylinder assembly, including first cylinder and second cylinder, be provided with first exhaust port and second exhaust port on the first cylinder at least, be provided with third exhaust port and fourth exhaust port on the second cylinder at least, first exhaust port sets up on the lateral wall between two terminal surfaces of first cylinder, the third exhaust port sets up on the lateral wall between two terminal surfaces of second cylinder.
Preferably, the second exhaust port is disposed at an end of the first cylinder away from the second cylinder, and the fourth exhaust port is disposed at an end of the second cylinder away from the first cylinder.
Preferably, the cylinder assembly further comprises a first exhaust passage having an inlet end in communication with the first exhaust port and a second exhaust passage having an inlet end in communication with the third exhaust port.
Preferably, the second exhaust port communicates with the first exhaust passage, and the fourth exhaust port communicates with the second exhaust passage.
Preferably, the cylinder assembly further comprises a first flange and a second flange, the first flange is arranged on the end face of the first cylinder on the side far away from the second cylinder, the exhaust port end of the first exhaust passage is arranged on the first flange, the second flange is arranged on the end face of the second cylinder on the side far away from the first cylinder, and the exhaust port end of the second exhaust passage is arranged on the second flange.
Preferably, first exhaust valve and first baffle are provided with in first exhaust port department, first baffle sets up first exhaust valve is kept away from one side of first cylinder, in order to right the opening angle of first exhaust valve carries on spacingly, third exhaust port department is provided with second exhaust valve and second baffle, the second baffle sets up second exhaust valve is kept away from one side of second cylinder, in order to right the opening angle of second exhaust valve carries on spacingly.
Preferably, a first mounting groove is formed in the first cylinder, the first exhaust valve and the first baffle are arranged in the first mounting groove, a second mounting groove is formed in the second cylinder, the second exhaust valve and the second baffle are arranged in the second mounting groove, the cylinder assembly further comprises a first sealing element and a second sealing element, the first sealing element is arranged at a notch of the first mounting groove to seal the notch of the first mounting groove, and the second sealing element is arranged at a notch of the second mounting groove to seal the notch of the second mounting groove.
Preferably, the center of the first exhaust port is located at a position intermediate between both end faces of the first cylinder, and/or the center of the third exhaust port is located at a position intermediate between both end faces of the second cylinder.
In another aspect of the present invention, there is provided a compressor including the cylinder assembly described above.
In another aspect of the present invention, an air conditioner is provided, which comprises the cylinder assembly described above.
Advantageous effects
The cylinder component provided by the embodiment of the invention can effectively reduce the deflection deformation of the crankshaft when the compressor runs at high frequency, and ensures the running stability of the compressor.
Drawings
FIG. 1 is a schematic top view of a first cylinder according to an embodiment of the present disclosure;
FIG. 2 is an exploded view of a first cylinder of an embodiment of the present application;
FIG. 3 is a schematic bottom view of a second cylinder according to an embodiment of the present disclosure;
FIG. 4 is a side view of a first cylinder of an embodiment of the present application;
FIG. 5 is a side view of the first cylinder of the present application with the seal removed;
fig. 6 is a sectional view of a first cylinder and a first flange according to an embodiment of the present application.
The reference numerals are represented as:
1. a first cylinder; 11. a first exhaust port; 12. a first exhaust valve; 13. a first baffle plate; 14. a first seal member; 21. a second seal member; 3. a first flange; 31. an expanding muffling aperture; 4. a second flange; 41. a second exhaust passage.
Detailed Description
Referring to fig. 1 to 6 in combination, according to an embodiment of the present application, a cylinder assembly includes a first cylinder 1 and a second cylinder, at least a first exhaust port 11 and a second exhaust port are provided on the first cylinder 1, at least a third exhaust port and a fourth exhaust port are provided on the second cylinder, the first exhaust port 11 is provided on a side wall between two end faces of the first cylinder 1, and the third exhaust port is provided on a side wall between two end faces of the second cylinder. Through the lateral wall with first gas vent 11 setting between two terminal surfaces of first cylinder 1, set up the third gas vent on the lateral wall between two terminal surfaces of second cylinder, compare with prior art, the distance between first cylinder 1 and the second cylinder reduces, is favorable to promoting the overall balance effect, and main, vice balancing piece counter weight reduce. The balance weight generates larger centrifugal force when the shafting rotates at high speed to cause the deflection deformation of the eccentric part and the top end of the crankshaft, and the balance weight with low balance weight can effectively solve the deflection deformation problem of the crankshaft.
Further, the first exhaust port 11 and the second exhaust port are communicated with the compression chamber of the first cylinder 1, and the gas in the compression chamber of the first cylinder 1 can be exhausted out of the first cylinder 1 through the first exhaust port 11 and the second exhaust port. The third exhaust port and the fourth exhaust port are communicated with the compression cavity of the second cylinder, and gas in the compression cavity of the second cylinder can be exhausted out of the second cylinder through the third exhaust port and the fourth exhaust port.
The second exhaust port is arranged at one end of the first cylinder 1 far away from the second cylinder, and the fourth exhaust port is arranged at one end of the second cylinder far away from the first cylinder 1.
Further, taking the first cylinder 1 as an upper cylinder and the second cylinder as a lower cylinder as an example, the second exhaust port is disposed on the upper end surface of the first cylinder 1, and the fourth exhaust port is disposed on the lower end surface of the second cylinder.
The cylinder assembly further includes a first exhaust passage having an inlet end communicating with the first exhaust port 11, and a second exhaust passage 41 having an inlet end communicating with the third exhaust port. Through setting up first exhaust passage and second exhaust passage 41, effectively guaranteed the smooth exhaust of the gas in first cylinder 1 and the second cylinder.
Further, a first exhaust passage is arranged in the side wall of the first cylinder 1, and extends towards the end face, far away from the second cylinder, of the first cylinder 1 in the side wall of the first cylinder 1. The second exhaust passage 41 is provided in the second cylinder side wall, extending toward the second cylinder in the second cylinder side wall away from the end face of the first cylinder 1.
The second exhaust port is communicated with the first exhaust passage, and the fourth exhaust port is communicated with the second exhaust passage 41, that is, the gas in the compression chamber of the first cylinder 1 discharged through the second exhaust port and the gas in the compression chamber of the first cylinder 1 discharged through the first exhaust port 11 are mixed in the first exhaust passage and then discharged. The gas in the compression chamber of the second cylinder discharged through the third exhaust port and the gas in the compression chamber of the second cylinder discharged through the fourth exhaust port are mixed in the second exhaust passage 41 and discharged.
The cylinder component further comprises a first flange 3 and a second flange 4, the first flange 3 is arranged on the end face, far away from one side of the second cylinder, of the first cylinder 1, the exhaust port end of the first exhaust channel is arranged on the first flange 3, the second flange 4 is arranged on the end face, far away from one side of the first cylinder 1, of the second cylinder, and the exhaust port end of the second exhaust channel 41 is arranged on the second flange 4.
Further, the first flange 3 is provided with a first exhaust hole, and the first exhaust hole is communicated with a section of first exhaust channel positioned in the side wall of the first cylinder 1, so that the first exhaust hole becomes a discharge port end of the first exhaust channel.
Further, the second flange 4 is provided with a second exhaust hole, which is communicated with a section of the second exhaust passage 41 located in the second cylinder side wall, so that the second exhaust hole becomes a discharge port end of the second exhaust passage 41.
Further, a first vent hole is provided on the top surface of the first flange 3, and a second vent hole is provided on the bottom surface of the second flange 4.
Further, the aperture of the first exhaust hole is larger than that of a section of the first exhaust passage located in the side wall of the first cylinder 1, so that the exhaust port end of the first exhaust passage forms an expanding type muffling hole 31. The aperture of the second exhaust hole is larger than that of a section of the second exhaust passage 41 located in the side wall of the second cylinder, so that the exhaust port end of the second exhaust passage 41 forms the expanding muffling hole 31 to reduce the exhaust noise of the first cylinder 1 and the second cylinder.
First exhaust port 11 department is provided with first discharge valve 12 and first baffle 13, and first baffle 13 sets up in one side that first discharge valve 12 kept away from first cylinder 1 to carry on spacingly to the opening angle of first discharge valve 12, and third exhaust port department is provided with second discharge valve and second baffle, and the second baffle setting is kept away from one side of second cylinder at second discharge valve, carries on spacingly to the opening angle of second discharge valve. The exhaust of the first cylinder 1 and the second cylinder is ensured by arranging a first exhaust valve 12 to open or close the first exhaust port 11 and by arranging a second exhaust valve to open or close the third exhaust port. Through setting up first baffle 13, can effectively carry on spacingly to the opening angle of first exhaust valve 12 to prevent that first exhaust valve 12 from excessively opening, cause the problem that can not in time close, lead to partial high-pressure gas water conservancy diversion to working chamber when next duty cycle, also can prevent that the too big problem that leads to the rupture of opening angle of first exhaust valve 12 from appearing. Through setting up the second baffle, can effectively carry on spacingly to the opening angle of second discharge valve to prevent that second discharge valve from excessively opening, cause the problem that can not in time close, lead to partial high-pressure gas water conservancy diversion to working chamber when next duty cycle, also can prevent that the too big problem that leads to the rupture of second discharge valve opening angle from appearing. Through the design of the multiple exhaust ports of the first exhaust port 11, the second exhaust port, the third exhaust port and the fourth exhaust port, the impact speed of the exhaust valve and the baffle is improved, and then the reliability and impact noise of the exhaust valve are improved.
Further, the opening pressure of the first exhaust valve 12 is different from the opening pressure of the exhaust valve at the second exhaust port, and the opening pressure of the second exhaust valve is different from the opening pressure of the exhaust valve at the fourth exhaust port.
Further, one end of the first baffle 13, which is far away from the first exhaust port 11, is fixed on the first cylinder 1 through a screw, and one end of the first baffle 13, which is close to the first exhaust port 11, tilts in the direction far away from the first cylinder 1. One end, far away from the third air outlet, of the second baffle is fixed on the second air cylinder through a screw, and one end, close to the third air outlet, of the second baffle is tilted towards the direction far away from the second air cylinder.
Further, a first baffle 13 is located outside the first exhaust valve 12, and a second baffle is located outside the second exhaust valve.
The air cylinder component comprises a first air cylinder 1, a first exhaust valve 12, a first baffle 13, a second air cylinder, a first sealing element 14 and a second sealing element 21, wherein the first air cylinder is provided with a first mounting groove, the first exhaust valve 12 and the first baffle 13 are arranged in the first mounting groove, the second air cylinder is provided with a second mounting groove, the second exhaust valve and the second baffle are arranged in the second mounting groove, the air cylinder component further comprises the first sealing element 14 and the second sealing element 21, the first sealing element 14 is arranged at the notch of the first mounting groove to seal the notch of the first mounting groove, and the second sealing element 21 is arranged at the notch of the second mounting. Through setting up first mounting groove and second mounting groove, guaranteed the installation of first discharge valve 12, first baffle 13, second discharge valve and second baffle, through setting up first sealing member 14 and second sealing member 21 in the notch department of first mounting groove and second mounting groove, guaranteed that the gas in the first cylinder 1 can only be followed first exhaust passage and discharged, the gas in the second cylinder can only be followed second exhaust passage 41 and discharged.
Further, first mounting groove is seted up on the outer wall of first cylinder 1, and the notch is leveled with the outer wall of first cylinder 1, and first sealing member 14 passes through the screw connection on the notch of first mounting groove to sealed notch. The second mounting groove is opened on the outer wall of second cylinder, and the notch is leveled with the outer wall of second cylinder, and second sealing member 21 passes through the screw connection on the notch of second mounting groove to sealed notch guarantees that first cylinder 1 and second cylinder combustion gas do not reveal from first mounting groove and second mounting groove.
The center of the first exhaust port 11 is located at an intermediate position between both end faces of the first cylinder 1, and/or the center of the third exhaust port is located at an intermediate position between both end faces of the second cylinder.
Further, the first exhaust port 11 is circular, and the center of the circle is located at the midpoint of a generatrix of the outer wall of the first cylinder 1. The third exhaust port is circular, and the circle center is located at the midpoint of the bus of the outer wall of the second cylinder.
In another aspect of the present embodiment, a compressor is provided, which includes the cylinder assembly described above.
In another aspect of the present embodiment, an air conditioner is provided, which includes the cylinder assembly described above.
The cylinder component provided by the embodiment of the invention can effectively reduce the deflection deformation of the crankshaft when the compressor runs at high frequency, and ensures the running stability of the compressor.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (10)

1. A cylinder assembly, characterized in that, includes first cylinder (1) and second cylinder, be provided with first exhaust port (11) and second exhaust port on the first cylinder (1) at least, be provided with third exhaust port and fourth exhaust port on the second cylinder at least, first exhaust port (11) sets up on the lateral wall between two terminal surfaces of first cylinder (1), the third exhaust port sets up on the lateral wall between two terminal surfaces of second cylinder.
2. The cylinder assembly according to claim 1, characterized in that the second exhaust port is arranged at the end of the first cylinder (1) remote from the second cylinder, and the fourth exhaust port is arranged at the end of the second cylinder remote from the first cylinder (1).
3. The cylinder assembly according to claim 1, characterized in that it further comprises a first exhaust channel and a second exhaust channel (41), the inlet end of the first exhaust channel communicating with the first exhaust port (11) and the inlet end of the second exhaust channel (41) communicating with the third exhaust port.
4. The cylinder assembly of claim 3, wherein the second exhaust port communicates with the first exhaust passage and the fourth exhaust port communicates with the second exhaust passage (41).
5. The cylinder assembly as claimed in claim 4, characterized in that the cylinder assembly further comprises a first flange (3) and a second flange (4), the first flange (3) being provided on an end face of the first cylinder (1) on the side remote from the second cylinder, the exhaust port end of the first exhaust channel being provided on the first flange (3), the second flange (4) being provided on an end face of the second cylinder on the side remote from the first cylinder (1), the exhaust port end of the second exhaust channel (41) being provided on the second flange (4).
6. The cylinder assembly according to claim 1, characterized in that a first exhaust valve (12) and a first baffle (13) are arranged at the first exhaust port (11), the first baffle (13) is arranged at a side of the first exhaust valve (12) remote from the first cylinder (1) to limit an opening angle of the first exhaust valve (12), and a second exhaust valve and a second baffle are arranged at the third exhaust port, the second baffle is arranged at a side of the second exhaust valve remote from the second cylinder to limit an opening angle of the second exhaust valve.
7. The cylinder assembly according to claim 6, characterized in that a first mounting groove is provided on the first cylinder (1), the first exhaust valve (12) and the first baffle (13) are disposed in the first mounting groove, a second mounting groove is provided on the second cylinder, the second exhaust valve and the second baffle are disposed in the second mounting groove, the cylinder assembly further comprises a first sealing member (14) and a second sealing member (21), the first sealing member (14) is disposed at a notch of the first mounting groove to seal the notch of the first mounting groove, and the second sealing member (21) is disposed at a notch of the second mounting groove to seal the notch of the second mounting groove.
8. Cylinder assembly according to claim 1, characterized in that the centre of the first exhaust port (11) is located in the middle between the two end faces of the first cylinder (1) and/or the centre of the third exhaust port is located in the middle between the two end faces of the second cylinder.
9. A compressor, characterized by comprising a cylinder assembly according to any one of claims 1-8.
10. An air conditioner characterized by comprising the cylinder assembly according to any one of claims 1 to 8.
CN202010136945.1A 2020-03-02 2020-03-02 Cylinder assembly, compressor and air conditioner Pending CN111255693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010136945.1A CN111255693A (en) 2020-03-02 2020-03-02 Cylinder assembly, compressor and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010136945.1A CN111255693A (en) 2020-03-02 2020-03-02 Cylinder assembly, compressor and air conditioner

Publications (1)

Publication Number Publication Date
CN111255693A true CN111255693A (en) 2020-06-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010136945.1A Pending CN111255693A (en) 2020-03-02 2020-03-02 Cylinder assembly, compressor and air conditioner

Country Status (1)

Country Link
CN (1) CN111255693A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176385A (en) * 1981-04-24 1982-10-29 Hitachi Ltd Rotary compressor
JPH06307362A (en) * 1993-04-27 1994-11-01 Hitachi Ltd Rotary compressor
CN1133400A (en) * 1994-12-28 1996-10-16 东芝株式会社 Rotary compressor
CN107120276A (en) * 2017-06-29 2017-09-01 广东美芝制冷设备有限公司 Multi-cylinder rotary compression assembly and multi-cylinder rotary compressor
CN110360111A (en) * 2019-08-26 2019-10-22 珠海格力节能环保制冷技术研究中心有限公司 Cylinder, pump assembly, compressor and air conditioner
CN110805555A (en) * 2019-10-21 2020-02-18 珠海格力节能环保制冷技术研究中心有限公司 Pump body structure, compressor, air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176385A (en) * 1981-04-24 1982-10-29 Hitachi Ltd Rotary compressor
JPH06307362A (en) * 1993-04-27 1994-11-01 Hitachi Ltd Rotary compressor
CN1133400A (en) * 1994-12-28 1996-10-16 东芝株式会社 Rotary compressor
CN107120276A (en) * 2017-06-29 2017-09-01 广东美芝制冷设备有限公司 Multi-cylinder rotary compression assembly and multi-cylinder rotary compressor
CN110360111A (en) * 2019-08-26 2019-10-22 珠海格力节能环保制冷技术研究中心有限公司 Cylinder, pump assembly, compressor and air conditioner
CN110805555A (en) * 2019-10-21 2020-02-18 珠海格力节能环保制冷技术研究中心有限公司 Pump body structure, compressor, air conditioner

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Application publication date: 20200609