CN115614278A - Compressor pump body and compressor - Google Patents

Compressor pump body and compressor Download PDF

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Publication number
CN115614278A
CN115614278A CN202110790185.0A CN202110790185A CN115614278A CN 115614278 A CN115614278 A CN 115614278A CN 202110790185 A CN202110790185 A CN 202110790185A CN 115614278 A CN115614278 A CN 115614278A
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CN
China
Prior art keywords
compressor
pump body
cylinder head
head assembly
compressor pump
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Pending
Application number
CN202110790185.0A
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Chinese (zh)
Inventor
吕林波
应哲强
胡孔生
王昱
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Shanghai Highly Electrical Appliances Co Ltd
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Shanghai Highly Electrical Appliances Co Ltd
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.)
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Publication date
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Priority to CN202110790185.0A priority Critical patent/CN115614278A/en
Publication of CN115614278A publication Critical patent/CN115614278A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • 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
    • 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
    • F04C2240/00—Components
    • F04C2240/10—Stators
    • 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
    • F04C2240/20—Rotors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

The invention provides a compressor pump body and a compressor, wherein the compressor pump body comprises: a cylinder body; the upper cylinder cover assembly and the lower cylinder cover assembly are respectively fixed at two axial ends of the cylinder body and are used for packaging the cylinder body to form a working cavity along the axial direction; the working cavity is used for sucking and compressing a refrigerant; the upper cylinder head assembly has a first central body covering the working chamber; the first central body and/or the inner part of the lower cylinder cover assembly is provided with at least one sealed inner cavity; this application can block the outside heat transfer of the pump body to the interior working chamber of cylinder, does benefit to and promotes the compressor performance.

Description

Compressor pump body and compressor
Technical Field
The invention relates to the technical field of compressors, in particular to a compressor pump body and a compressor.
Background
Rolling rotor compressors are widely used today in household refrigerators and air conditioners. The rolling rotor compressor has the advantages that due to the characteristics of the structure of the rolling rotor compressor, the air suction cavity and the compression cavity coexist in the range of a rotation angle of the piston, and meanwhile, the outer wall surface of the working cavity of the pump body is wrapped by high-temperature and high-pressure refrigerant and refrigerating machine oil in a high back pressure environment in the compressor shell. The high-temperature and high-pressure environment field outside the pump body inevitably passes through the envelope surface of the working cavity of the cylinder in all directions and forms a heat transfer path with the gaseous refrigerant inside the working cavity, so that the volume loss of the air suction process of the compressor and the power loss of the compression process of the compressor are increased, and the performance of the compressor is influenced.
Disclosure of Invention
In view of this, the present invention provides a compressor pump body and a compressor, which prevent heat outside the pump body from being transferred to a working cavity in a cylinder, and are beneficial to improving the performance of the compressor.
According to an aspect of the present invention, there is provided a compressor pump body comprising:
a cylinder body;
the upper cylinder cover assembly and the lower cylinder cover assembly are respectively fixed at two axial ends of the cylinder body and used for packaging the cylinder body to form an axial working cavity; the working cavity is used for sucking and compressing a refrigerant; the upper cylinder head assembly has a first central body covering the working chamber;
the first center body and/or the interior of the lower cylinder head assembly has at least one sealed interior cavity.
Optionally, the inner cavity is an integrally formed structure.
Optionally, the upper cylinder head assembly includes an upper cylinder head body and a first cover plate, and at least one first groove is provided on a coinciding region of the upper cylinder head body and the first central body; the first cover plate covers the overlapping area and forms the inner cavity together with the first groove.
Optionally, the lower cylinder head assembly includes a lower cylinder head body and a second cover plate, and the lower cylinder head body is provided with at least one second groove; the second cover plate covers the lower cylinder cover body and forms the inner cavity together with the second groove.
Optionally, the minimum distance between the inner cavity and the upper end face of the upper cylinder cover assembly in the axial direction is a, and the minimum distance between the inner cavity and the lower end face of the upper cylinder cover assembly in the axial direction is b, and a and b satisfy 0.1< (a/b) <0.85.
Optionally, an exhaust valve seat is arranged on the upper surface of the first central body and used for exhausting the pump body; the projection area of the end surface of the exhaust valve seat on the first central body is S 0 The diameter of the first central body is D 1 The cross-sectional area of an inner cavity arranged in the upper cylinder cover component is S 1 And satisfies the following conditions:
Figure BDA0003160576500000021
optionally, the lower cylinder head assembly has a diameter D 2 The cross-sectional area of an inner cavity arranged in the lower cylinder cover component is S 2 And satisfies the following conditions:
Figure BDA0003160576500000022
optionally, the maximum axial depth of the inner cavity along the cylinder body is H, and the thickness of the upper cylinder head assembly or the lower cylinder head assembly is H, so that: 0.5mm < -h < -0.5H.
Optionally, an exhaust valve seat is disposed on an upper surface of the first central body, and the inner cavity is disposed opposite to the exhaust valve seat.
According to another aspect of the invention, there is provided a compressor comprising any one of the compressor pump bodies described above.
Compared with the prior art, the invention has the beneficial effects that:
according to the compressor pump body and the compressor, the sealed inner cavity is arranged in the upper cylinder cover component and/or the lower cylinder cover component, so that heat outside the pump body is prevented from being transferred to the working cavity in the cylinder, the volume loss in the air suction process of the compressor and the power loss in the compression process of the compressor are reduced, and the performance of the compressor is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural diagram of a cylinder body in a pump body of a compressor according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an upper cylinder head assembly in a pump body of a compressor according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an upper cylinder head body in the upper cylinder head assembly of FIG. 2;
FIG. 4 is a schematic view of a first cover plate of the upper cylinder head assembly of FIG. 2;
FIG. 5 is a top view of the upper head body of FIG. 3;
FIG. 6 is a schematic view of a lower cylinder head assembly in a pump body of a compressor according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a lower cylinder head body of the lower cylinder head assembly of FIG. 6;
FIG. 8 is a schematic structural view of a second cover plate in the lower cylinder head assembly of FIG. 6;
FIG. 9 is a top view of an upper head assembly in a pump body of a compressor according to another embodiment of the present disclosure;
FIG. 10 isbase:Sub>A cross-sectional view of the upper cylinder head assembly of FIG. 9 taken along the direction A-A.
Reference numerals
The cylinder comprises a cylinder body-101, a working chamber-102, an upper cylinder cover component-103, a lower cylinder cover component-104, an upper cylinder cover body-105, a first groove-106, a first cover plate-107, a lower cylinder cover body-108, a second groove-109, a second cover plate-110, an inner cavity-111, an exhaust valve seat-112, a first central mounting hole-113 and a second central mounting hole-114.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, materials, devices, etc. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure. The same reference numerals in the drawings denote the same or similar structures, and thus a detailed description thereof will be omitted.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising," "having," and "providing" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
The embodiment of the invention discloses a compressor pump body. The compressor pump body includes a cylinder body 101, an upper cylinder head assembly 103, and a lower cylinder head assembly 104.
Referring to fig. 1, 2 and 6, an upper cylinder head assembly 103 and a lower cylinder head assembly 104 are respectively fixed to both axial ends of the cylinder body 101, and are configured to enclose the cylinder body 101 to form an axial working chamber 102. The working chamber 102 is used to suck and compress a refrigerant. The upper cylinder head assembly 103 has a first central body covering the working chamber 102. The first center body and/or the interior of the lower head assembly 104 has at least one sealed interior cavity.
Specifically, the working chamber 102 may include a suction chamber for sucking a refrigerant and a compression chamber. The compression cavity is used for compressing the refrigerant to form high-temperature and high-pressure gas. Wherein the first projection of the first central body based on the cylinder end face comprises the second projection of the working chamber 102 based on the cylinder end face. In this application, above-mentioned inner cavity can be integrated into one piece structure, also can be for the combination package assembly structure. The inner cavity may extend circumferentially, radially, or in other directions. This is not limited by the present application. In this embodiment, the inner cavity is a combined structure.
Specifically, referring to fig. 2 to 5, in the present embodiment, the upper cylinder head assembly 103 includes an upper cylinder head body 105 and a first cover plate 107. At least one first groove 106 is formed in the overlapping region of the upper cylinder head body 105 and the first center body. The first cover plate 107 covers the overlapping area, and the first cover plate 107 and the first groove 106 together form the inner cavity. That is, the upper cylinder head body 105 includes a second center body, and the first center body is composed of the second center body and the first cover plate 107. The overlapping area of the upper cylinder head body 105 and the first center body is the second center body. The extension direction of the first groove 106 coincides with the extension direction of the inner cavity.
Referring to fig. 6 to 8, in the present embodiment, the lower cylinder head assembly 104 includes a lower cylinder head body 108 and a second cover plate 110. Referring to fig. 7, the lower cylinder head body 108 is provided with at least one second groove 109. The second cover plate 110 covers the lower cylinder head body 108, and the second cover plate 110 and the second groove 109 together form the inner cavity. The extension direction of the second recess 109 coincides with the extension direction of the inner cavity. The inner cavity manufactured by adopting the combined structure has simple process and higher production efficiency. The setting of cavity in this embodiment through the aforesaid can play the effect that blocks pump body outside partial heat transfer to working chamber 102 in the cylinder to reduce the heat of transmitting into, prevent that the refrigerant temperature is too high in the working chamber 102 of cylinder, lead to the cylinder to breathe in the volume loss of process and the power loss of compression process bigger than normal, thereby promote compressor performance.
In other embodiments, referring to fig. 9 and 10, the inner cavity 111 may be a one-piece structure. The inner cavity 111 in fig. 9 and 10 is an integrally formed structure. The inner cavity 111 of the integrated structure has the characteristics of less parts and saving parts of the compressor, so that the production cost is saved.
In this embodiment, a minimum distance between the inner cavity and the upper end surface of the upper cylinder head assembly 103 in the axial direction is a, and a minimum distance between the inner cavity and the lower end surface of the upper cylinder head assembly 103 in the axial direction is b, where a and b satisfy 0.1< (a/b) <0.85. In this way, on the one hand, (a/b) <0.85 is satisfied, so that the inner cavity is closer to the upper end surface than to the lower end surface of the upper cylinder head assembly 103, which is more advantageous in blocking part of the heat outside the pump body from being transferred to the in-cylinder working chamber 102. And on the other hand, the requirement that (a/b) >0.1 is met, and the strength of the upper cylinder cover assembly 103 can be ensured to meet the working requirement of the compressor.
In another embodiment of the present application, the distance between the inner cavity and the lower end surface of the lower cylinder head assembly 104 is smaller than the distance between the inner cavity and the upper end surface of the lower cylinder head assembly 104. This also helps to block some of the heat from the exterior of the pump body from transferring from the lower head assembly 104 to the working chamber 102 within the cylinder.
The upper end face of the upper cylinder head assembly 103 is the end face of the upper cylinder head assembly 103 deviating from one end of the cylinder body 101, and the lower end face of the lower cylinder head assembly 104 is the end face of the lower cylinder head assembly 104 deviating from one end of the cylinder body 101.
In this embodiment, referring to fig. 2 and 3, the upper surface of the first central body is provided with a vent valve seat 112 for venting the pump body. The area of the end surface projection of the exhaust valve seat 112 on the first center body is S 0 The diameter of the first central body is D 1 The cross-sectional area of the inner cavity provided in the upper cylinder head assembly 103 is S 1 Satisfies the following conditions:
Figure BDA0003160576500000051
thus, on the one hand, satisfy
Figure BDA0003160576500000052
The sectional area of the inner cavity in the upper cylinder head assembly 103 can be made large enough to enhance the blocking effect on the heat transfer, which is beneficial to improving the performance of the compressor. On the other hand satisfy
Figure BDA0003160576500000053
Therefore, the blocking effect of the inner cavity on heat transfer can be ensured to meet the requirement, the blocking effect is avoided to be poor, and the compressor has smaller suction volumeLosses and power losses.
In this embodiment, the diameter of the lower cylinder head assembly 104 is D 2 The cross-sectional area of the inner cavity provided in the lower head assembly 104 is S 2 Satisfies the following conditions:
Figure BDA0003160576500000054
thus, on the one hand, satisfy
Figure BDA0003160576500000055
The cross-sectional area of the internal cavity in the lower head assembly 104 can be made sufficiently large to enhance the blocking effect on heat transfer, which is beneficial to improving the performance of the compressor. On the other hand satisfy
Figure BDA0003160576500000061
Therefore, the inner cavity can be guaranteed to have a better blocking effect on heat transfer, the blocking effect is avoided to be poor, and the compressor is enabled to have smaller suction volume loss and power loss.
The maximum axial depth of the inner cavity along the cylinder body 101 is H, and the thickness of the upper cylinder head assembly 103 or the lower cylinder head assembly 104 is H, which satisfies: 0.5 mm-woven cloth-h-woven cloth-0.5H. Therefore, on one hand, the inner cavity is ensured to have a good blocking effect on heat transfer, and the performance of the compressor is favorably improved; on the other hand, the strength of the upper cylinder cover assembly 103 or the lower cylinder cover assembly 104 can be ensured to meet the working requirement of the compressor.
In another embodiment of the present application, the inner cavity is disposed opposite the exhaust valve seat 112, which also helps to enhance the heat transfer resistance of the inner cavity.
In another embodiment of the present application, referring to fig. 2 and 6, a first center mounting hole 113 is provided on the first center body of the upper cylinder head assembly 103, and a second center mounting hole 114 is provided on the lower cylinder head assembly 104. The inner cavity in the upper cylinder head assembly 103 extends all around, i.e. recessed towards both the outer edge of the first central mounting hole 113 and the outer edge of the first central body, such that the minimum distance between the outer periphery of the inner cavity and the outer edge of the first central mounting hole 113 is smaller than a first preset threshold value and the minimum distance between the outer periphery of the inner cavity and the outer edge of the first central body is smaller than a second preset threshold value.
And/or the inner cavity in the lower head assembly 104 extends peripherally, i.e. both concavely towards the outer edge of the second central mounting hole 114 and the outer edge of the lower head body 108, such that the minimum spacing between the outer periphery of the inner cavity and the outer edge of the second central mounting hole 114 is smaller than a third predetermined threshold value and the minimum spacing between the outer edge of the lower head body 108 is smaller than a fourth predetermined threshold value.
The first central mounting hole 113 and the second central mounting hole 114 are used for passing a crankshaft in the pump body. The first preset threshold, the second preset threshold, the third preset threshold and the fourth preset threshold may be 1mm, which is not limited in the present application.
An embodiment of the present invention further provides a compressor, wherein the compressor is equipped with the compressor pump body described in any of the above embodiments, and the detailed structural features and advantages of the compressor pump body can be referred to the description of the above embodiments, which are not repeated herein.
In conclusion, the compressor pump body and the compressor that this application provided have following advantage at least:
the utility model discloses a compressor pump body and compressor sets up sealed inner chamber through last cylinder cap subassembly and/or lower cylinder cap subassembly, blocks the outside heat transfer of pump body and to the working chamber in the cylinder, reduces the compressor volumetric loss of process of breathing in and the power loss of compression process to do benefit to and promote the compressor performance.
In the description of the present invention, it is to be understood that the terms "bottom", "longitudinal", "lateral", "upper", "lower", "front", "rear", "vertical", "horizontal", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplification of description, and do not indicate or imply that the structures or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more, and "several" means one or more.
In the description herein, references to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," etc., indicate that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (10)

1. A compressor pump body, comprising:
a cylinder body (101);
the upper cylinder cover assembly (103) and the lower cylinder cover assembly (104) are respectively fixed at two axial ends of the cylinder body (101) and used for packaging the cylinder body (101) to form an axial working cavity (102); the working cavity (102) is used for sucking and compressing a refrigerant; the upper cylinder head assembly (103) has a first central body covering the working chamber (102);
the first center body and/or the interior of the lower cylinder head assembly (104) has at least one sealed interior cavity.
2. The compressor pump body of claim 1, wherein said internal cavity is of unitary construction.
3. The compressor pump body according to claim 1, wherein the upper cylinder head assembly (103) comprises an upper cylinder head body (105) and a first cover plate (107), the upper cylinder head body (105) being provided with at least a first recess (106) in the region of coincidence with the first central body; the first cover plate (107) covers the overlapping area, and the first cover plate and the first groove (106) jointly form the inner cavity.
4. The compressor pump body according to claim 1, characterized in that said lower head assembly (104) comprises a lower head body (108) and a second cover plate (110), said lower head body (108) being provided with at least a second recess (109); the second cover plate (110) covers the lower cylinder cover body (108) and forms the inner cavity together with the second groove (109).
5. The compressor pump body according to claim 1, wherein the minimum axial spacing of the internal cavity from the upper end face of the upper cylinder head assembly (103) is a and from the lower end face of the upper cylinder head assembly (103) is b, a and b satisfying 0.1< (a/b) <0.85.
6. Compressor pump body according to claim 1, characterised in that the upper surface of said first central body is provided with a discharge valve seat (112) for the discharge of the pump body; the projection area of the end surface of the exhaust valve seat (112) on the first central body is S 0 The diameter of the first central body is D 1 The cross-sectional area of an inner cavity arranged in the upper cylinder cover component (103) is S 1 Satisfies the following conditions:
Figure FDA0003160576490000011
7. the compressor pump body according to claim 1, characterized in that the lower cylinder head assembly (104) has a diameter D 2 A cross-sectional area of an inner cavity provided in the lower head assembly (104)Is S 2 Satisfies the following conditions:
Figure FDA0003160576490000012
8. the compressor pump body according to claim 1, characterized in that the maximum axial depth of the internal cavity along the cylinder body (101) is H and the thickness of the upper cover assembly (103) or of the lower cover assembly (104) is H, satisfying: 0.5mm < -h < -0.5H.
9. The compressor pump body according to claim 1, characterized in that the upper surface of said first central body is provided with a discharge valve seat (112), said internal cavity being arranged opposite said discharge valve seat (112).
10. A compressor, characterized by comprising a compressor pump body according to any one of claims 1 to 9.
CN202110790185.0A 2021-07-13 2021-07-13 Compressor pump body and compressor Pending CN115614278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110790185.0A CN115614278A (en) 2021-07-13 2021-07-13 Compressor pump body and compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110790185.0A CN115614278A (en) 2021-07-13 2021-07-13 Compressor pump body and compressor

Publications (1)

Publication Number Publication Date
CN115614278A true CN115614278A (en) 2023-01-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110790185.0A Pending CN115614278A (en) 2021-07-13 2021-07-13 Compressor pump body and compressor

Country Status (1)

Country Link
CN (1) CN115614278A (en)

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