CN118030469A - Compressor cylinder end structure, compressor and refrigeration equipment - Google Patents
Compressor cylinder end structure, compressor and refrigeration equipment Download PDFInfo
- Publication number
- CN118030469A CN118030469A CN202410255827.0A CN202410255827A CN118030469A CN 118030469 A CN118030469 A CN 118030469A CN 202410255827 A CN202410255827 A CN 202410255827A CN 118030469 A CN118030469 A CN 118030469A
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- Prior art keywords
- compressor
- cylinder
- valve plate
- suction
- head structure
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 84
- 235000014676 Phragmites communis Nutrition 0.000 claims description 8
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention provides a compressor cylinder head structure, a compressor and refrigeration equipment, relates to the technical field of compressors, and solves the technical problems that the sealing performance of the compressor cylinder head structure in the prior art cannot be effectively ensured, and leakage is easy to occur. The compressor cylinder head structure, the compressor and the refrigeration equipment comprise a cylinder cover, an exhaust valve block, a valve plate, an air suction valve block and a cylinder seat, wherein the exhaust valve block, the valve plate and the air suction valve block are sequentially arranged between the cylinder cover and the cylinder seat, an elastic sealing structure is arranged on the exhaust valve block and/or the air suction valve block, and the elastic sealing structure is elastically clamped between the cylinder cover and the cylinder seat. The invention is used for providing a compressor cylinder head structure, a compressor and refrigeration equipment, wherein the sealing strength is improved, and the sealing performance is improved.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a compressor cylinder head structure, a compressor and refrigeration equipment.
Background
When the compressor works, high-pressure gas generated by compression of the piston is buffered by the cavity in the cylinder cover and then is led out to enter a refrigerating system outside the compressor, and the refrigerating cycle is completed. Because the interior of the cylinder cover is high-temperature and high-pressure gas, the gas is easy to leak through the matching parts of all parts, and the cold energy is lost.
In the prior art, a cylinder head gasket is added between a cylinder head and a valve plate, a suction valve plate gasket is added between a suction valve plate and the end face of a cylinder seat, and the suction valve plate gasket is fastened through screws at the end part of the cylinder head, so that the effect of sealing gas is achieved. The cylinder cover gasket and the suction valve plate gasket are usually flat gaskets, and are made of non-asbestos non-metal materials of N-2085G, and are soft in texture. If the screw moment is too large, the gasket is easy to crack, the cylinder hole is easy to deform to cause piston abrasion, and when the screw moment is severe, the reliability problem of compressor accidents caused by piston clamping, cylinder clamping and the like can occur, so that the screw moment is not easy to be too large. However, if the screw torque is too small or the sealing area of the gasket between the fitting parts is insufficient, there is a risk that high-pressure gas is likely to leak from the inside to the outside of the cylinder head, resulting in a decrease in the gas delivery efficiency of the compressor. The screw torque is therefore not too small.
The present inventors found that there are at least the following technical problems in the prior art: the sealing performance of the compressor cylinder head structure cannot be effectively ensured, and the leakage problem is easy to occur.
Disclosure of Invention
The invention aims to provide a compressor cylinder head structure, a compressor and refrigeration equipment, which are used for solving the technical problems that the sealing performance of the compressor cylinder head structure in the prior art cannot be effectively ensured and leakage is easy to occur ..
In order to achieve the above purpose, the present invention provides the following technical solutions:
The invention provides a compressor cylinder head structure which comprises a cylinder cover, an exhaust valve plate, a valve plate, an air suction valve plate and a cylinder seat, wherein the exhaust valve plate, the valve plate and the air suction valve plate are sequentially arranged between the cylinder cover and the cylinder seat, an elastic sealing structure is arranged on the exhaust valve plate and/or the air suction valve plate, and the elastic sealing structure is elastically clamped between the cylinder cover and the cylinder seat.
As a further development of the invention, the elastic sealing structure is an annular bulge.
As a further improvement of the invention, the cross section of the bulge is U-shaped or arc-shaped.
As a further improvement of the invention, the elastic sealing structure is integrally formed with the air discharge valve plate or the air suction valve plate.
As a further improvement of the invention, the height of the U-shaped bulge or the arc-shaped bulge is 0.2-0.6mm, and the width of the U-shaped bulge or the arc-shaped bulge is 0.3-1mm.
As a further improvement of the invention, an exhaust valve sealing gasket is arranged between the cylinder cover and the exhaust valve plate, and an intake valve sealing gasket is arranged between the cylinder seat and the intake valve plate.
As a further improvement of the invention, the exhaust valve sealing gasket and the suction valve sealing gasket are both paper gaskets.
As a further improvement of the invention, the exhaust valve sealing gasket and the suction valve sealing gasket are both N-2085G asbestos-free gaskets.
As a further improvement of the invention, the air suction valve plate is also provided with an air exhaust hole, a first limit groove and an air suction valve reed, and the air suction valve plate is provided with an air suction port, a second limit groove and an air exhaust valve reed.
As a further improvement of the invention, the air suction valve sealing gasket is provided with a first central hole and an exhaust air introducing hole, the first central hole corresponds to a cylinder hole on the cylinder seat, and the exhaust air introducing hole corresponds to the exhaust hole; the exhaust valve sealing gasket is provided with a second central hole and an air suction and exhaust hole, the second central hole is communicated with the cylinder cover, and the air suction and exhaust hole corresponds to the air suction port.
As a further improvement of the invention, the air suction and exhaust hole is crescent-shaped.
A compressor comprising a compressor cylinder head arrangement as described above.
A refrigeration apparatus comprising a compressor as described above.
The beneficial effects of the invention are as follows: according to the compressor cylinder head structure, the compressor and the refrigeration equipment, the elastic sealing structure is arranged on the exhaust valve plate and/or the air suction valve plate and is elastically clamped between the cylinder cover and the cylinder seat, when the cylinder cover and the cylinder seat are connected through the bolts, the elastic sealing structure can improve the sealing strength under the action of the pretightening force of the bolts, the sealing performance of the compressor cylinder head structure is improved, the volumetric efficiency of the compressor is improved, and the refrigerating capacity of the compressor is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic view of the suction valve plate according to the present invention;
FIG. 3 is a cross-sectional view A-A of the present invention;
FIG. 4 is a schematic view of the structure of the exhaust valve plate of the present invention;
FIG. 5 is a B-B cross-sectional view of the present invention;
FIG. 6 is a schematic view of the structure of the suction valve sealing gasket of the present invention;
FIG. 7 is a schematic view of the structure of the exhaust valve gasket of the present invention;
FIG. 8 is a schematic view of the structure of the cylinder block of the present invention;
fig. 9 is a schematic view of the structure of the suction muffler of the present invention.
In the figure:
1. a cylinder head; 2. an exhaust valve plate; 3. a valve plate; 4. a suction valve plate; 5. a cylinder block; 6. an elastic sealing structure; 7. an exhaust valve sealing gasket; 8. sealing gasket of suction valve; 9. an air suction muffler;
21. An air suction port; 22. the second limit groove; 23. a tongue of the exhaust valve;
41. an exhaust hole; 42. a first limit groove; 43. an inhalation valve reed;
51. a cylinder bore;
71. a second central bore; 72. an air suction and exhaust hole; 73. a fourth limit groove;
81. a first central bore; 82. an exhaust vent; 83. a third limit groove;
91. And an air outlet hole.
Detailed Description
The following description of the invention and the differences between the invention and the prior art will be understood with reference to figures 1 to 9 of the accompanying drawings and the text. The following describes the invention in further detail, including preferred embodiments, by way of the accompanying drawings and by way of examples of some alternative embodiments of the invention. It should be noted that: any technical feature and any technical solution in this embodiment are one or several of various optional technical features or optional technical solutions, and in order to describe brevity, all of the optional technical features and the optional technical solutions of the present invention cannot be exhausted in this document, and it is inconvenient for an implementation of each technical feature to emphasize that it is one of various optional implementations, so those skilled in the art should know: any one of the technical means provided by the invention can be replaced or any two or more of the technical means or technical features provided by the invention can be mutually combined to obtain a new technical scheme. Any technical features and any technical solutions in the present embodiment do not limit the protection scope of the present invention, and the protection scope of the present invention should include any alternative technical solution that can be conceived by a person skilled in the art without performing creative efforts, and a new technical solution obtained by combining any two or more technical means or technical features provided by the present invention with each other by a person skilled in the art.
In the description of the present invention, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
The invention provides a compressor cylinder head structure, a compressor and refrigeration equipment, wherein the sealing strength is improved, and the sealing performance is improved.
The technical scheme provided by the invention is described in more detail below with reference to fig. 1 to 9.
The invention provides a compressor cylinder head structure, which comprises a cylinder cover 1, an exhaust valve plate 2, a valve plate 3, an intake valve plate 4 and a cylinder seat 5, wherein the exhaust valve plate 2, the valve plate 3 and the intake valve plate 4 are sequentially arranged between the cylinder cover 1 and the cylinder seat 5, an elastic sealing structure 6 is arranged on the exhaust valve plate 2 and/or the intake valve plate 4, and the elastic sealing structure 6 is elastically clamped between the cylinder cover 1 and the cylinder seat 5.
According to the compressor cylinder head structure provided by the invention, the elastic sealing structure 6 is arranged on the exhaust valve plate 2 and/or the suction valve plate 4, the elastic sealing structure 6 is elastically clamped between the cylinder cover 1 and the cylinder seat 5, when the cylinder cover 1 and the cylinder seat 5 are connected through bolts, the elastic sealing structure 6 can improve the sealing strength through the elastic sealing structure 6 under the action of the pretightening force of the bolts, the sealing performance of the compressor cylinder head structure is improved, the volumetric efficiency of the compressor is improved, and the refrigerating capacity of the compressor is improved.
Further, as shown in fig. 2-5, the elastic sealing structure 6 is an annular U-shaped protrusion. The elastic sealing structure 6 adopts an annular U-shaped bulge, the U-shaped structure can have elasticity when being subjected to pretightening force and is elastically extruded and clamped between the cylinder cover 1 and the cylinder seat 5, so that the sealing strength is improved, the sealing performance of the cylinder head structure of the compressor is improved, the volumetric efficiency of the compressor is improved, and the refrigerating capacity of the compressor is improved.
Specifically, as shown in fig. 2-5, the elastic sealing structure 6 is an annular structure with the same shape as the exhaust valve plate 2 or the intake valve plate 4, wherein fig. 2-3 are schematic structural diagrams of the exhaust valve plate 4, and fig. 4-5 are schematic structural diagrams of the exhaust valve plate 2.
And the distance between the elastic sealing structure 6 and the edge of the exhaust valve plate 2 or the suction valve plate 4 is L1, and the value range of L1 is 2-5mm. The height of the U-shaped bulge is 0.2-0.6mm, and the width of the U-shaped bulge is 0.3-1mm.
In some other embodiments of the invention, the resilient seal structure 6 is an arcuate protrusion. The height of the arc-shaped bulge is 0.2-0.6mm, and the width of the arc-shaped bulge is 0.3-1mm.
Further, the elastic sealing structure 6 is integrally formed with the air discharge valve plate 2 or the air suction valve plate 4. Particularly, the method can adopt stamping one-step forming, and has good technological performance and low material cost.
Further, as shown in fig. 1 and fig. 6-7, an exhaust valve sealing gasket 7 is disposed between the cylinder head 1 and the exhaust valve plate 2, an intake valve sealing gasket 8 is disposed between the cylinder seat 5 and the intake valve plate 4, and the exhaust valve sealing gasket 7 and the intake valve sealing gasket 8 are both paper gaskets.
In this further improvement, an exhaust valve sealing gasket 7 is disposed between the cylinder head 1 and the exhaust valve plate 2, an intake valve sealing gasket 8 is disposed between the cylinder block 5 and the intake valve plate 4, the exhaust valve sealing gasket 7 is used for sealing a gas leakage channel between the cylinder head 1 and the exhaust valve plate 2, the intake valve sealing gasket 8 is used for sealing a gas leakage channel between the intake valve plate 4 and the cylinder block 5, and the exhaust valve sealing gasket 7 and the intake valve sealing gasket 8 can improve the sealing effect.
And:
The exhaust valve sealing gasket 7 and the suction valve sealing gasket 8 are paper gaskets, when the cylinder cover 1 and the cylinder seat 5 are connected through bolts, under the action of bolt pretightening force, the elastic sealing structure 6 can be deformed in preference to the exhaust valve plate 2 and the suction valve plate 4 by extrusion, and the elastic sealing structure 6 can be embedded into the exhaust valve sealing gasket 7 and the suction valve sealing gasket 8 to form a better sealing structure, so that the sealing strength is improved, the sealing performance of a cylinder head structure of a compressor is improved, the volumetric efficiency of the compressor is improved, and the refrigerating capacity of the compressor is improved.
Experiments prove that the torque of the screw of the cylinder cover 1 with the traditional structure is generally 9-11N.mm, and the pretightening force system of the screw of the cylinder cover 1 can achieve better sealing effect by using the cylinder head structure of the compressor. Because the moment of the screw is reduced, the deformation of the cylinder hole is reduced, and the reliability of the compressor is improved.
Optionally, the exhaust valve sealing gasket 7 and the suction valve sealing gasket 8 are both N-2085G asbestos-free gaskets.
Further, the suction valve plate 4 is further provided with an exhaust hole 41, a first limiting groove 42 and a suction valve reed 43, the exhaust hole 41 is used as a discharge channel of the refrigerant, the first limiting groove 42 is used for assembling and positioning the lower suction valve plate 4, and the suction valve reed 43 is used for sucking gas into the cylinder and preventing gas in the cylinder from leaking to the outside of the cylinder in the compression process.
The exhaust valve plate 2 is provided with an air suction port 21, a second limit groove 22 and an exhaust valve reed 23. The air suction port 21 is used as a suction port for the refrigerant, the second limiting groove 22 is used for assembling and positioning the air discharge valve plate 2, and the air discharge valve tongue 23 is used for discharging compressed air out of the cylinder and preventing high-pressure air from flowing back into the cylinder.
The suction valve sealing gasket 8 is provided with a first central hole 81 and an exhaust gas introducing hole 82, the first central hole 81 corresponds to the cylinder hole 51 on the cylinder seat 5, and the exhaust gas introducing hole 82 corresponds to the exhaust hole 41; the exhaust valve sealing gasket 7 is provided with a second center hole 71 and an intake and exhaust hole 72, the second center hole 71 communicates with the cylinder head 1, and the intake and exhaust hole 72 corresponds to the intake port 21.
Specifically, the first center hole 81 has an inner diameter 0.3 to 0.8mm (single side 0.15 to 0.4 mm) larger than the inner diameter of the cylinder hole 51. The diameter of the air exhaust hole 82 is 3-5.5 mm. The edge of the suction valve sealing gasket 8 is provided with a third limit groove 83 for assembly and positioning.
The second center hole 71 communicates with the cylinder head 1, the intake air intake hole 72 corresponds to the intake port 21, the shape of the intake air intake hole 72 is the same as that of the air outlet hole 91 of the intake muffler 9 provided on the cylinder head 1, and the size of the intake air intake hole 72 is 0.1 to 0.3mm larger than the single side of the air outlet hole 91 of the intake muffler 9. The edge of the exhaust valve sealing gasket 7 is provided with a fourth limit groove 73 for assembly and positioning.
Preferably, the air suction and exhaust hole 71 is crescent-shaped. The air suction and exhaust hole 71 is crescent-shaped, which is beneficial to increasing the area of the air suction channel and reducing the flow resistance loss of the air.
The invention also provides a compressor, comprising the compressor cylinder head structure.
When the compressor of the invention works, the refrigerant firstly enters the suction muffler 9 to be silenced, then is discharged from the air outlet hole 91 of the suction muffler 9, enters the compression cavity through the air suction port on the suction valve plate 2 and the valve plate 3 to be compressed, forms high-pressure gas, and is discharged to the condenser outside the compressor.
The invention also provides refrigeration equipment comprising the compressor.
In the description of the present specification, reference to the terms "example," "embodiment," or "some embodiments," etc., means 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 present application is, of course, not limited to the above-described embodiments, and one skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the application, and these equivalent modifications or substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (13)
1. The utility model provides a compressor cylinder end structure, its characterized in that includes cylinder head, discharge valve piece, valve plate, suction valve piece and cylinder block, the discharge valve piece the valve plate and suction valve piece sets gradually between the cylinder head with the cylinder block, the discharge valve piece and/or be provided with elastic seal structure on the suction valve piece, elastic seal structure elastic clamp is in between the cylinder head with the cylinder block.
2. The compressor cylinder head structure of claim 1, wherein the resilient seal structure is an annular protrusion.
3. The compressor head structure of claim 2, wherein the cross section of the boss is U-shaped or arc-shaped.
4. The compressor head structure of claim 2, wherein the elastic sealing structure is integrally formed with the discharge valve plate or the suction valve plate.
5. The compressor head structure of claim 2, wherein the height of the boss is 0.2-0.6mm and the width of the boss is 0.3-1mm.
6. The compressor head structure of any one of claims 1-5, wherein an exhaust valve sealing gasket is disposed between the cylinder head and the exhaust valve plate, and an intake valve sealing gasket is disposed between the cylinder block and the intake valve plate.
7. The compressor cylinder head structure of claim 6, wherein the exhaust valve sealing gasket and the suction valve sealing gasket are both paper gaskets.
8. The compressor cylinder head structure of claim 6, wherein the exhaust valve sealing gasket and the suction valve sealing gasket are both N-2085G asbestos-free gaskets.
9. The compressor cylinder head structure of claim 6, wherein the suction valve plate is further provided with a vent hole, a first limit groove and a suction valve reed, and the discharge valve plate is provided with a suction port, a second limit groove and a discharge valve reed.
10. The compressor head structure of claim 9, wherein the suction valve sealing gasket is provided with a first center hole corresponding to a cylinder hole on the cylinder block and a discharge gas introduction hole corresponding to the discharge hole; the exhaust valve sealing gasket is provided with a second central hole and an air suction and exhaust hole, the second central hole is communicated with the cylinder cover, and the air suction and exhaust hole corresponds to the air suction port.
11. The compressor head structure of claim 10, wherein the suction bleed holes are crescent shaped.
12. A compressor comprising a compressor head structure according to any one of claims 1-11.
13. A refrigeration apparatus comprising the compressor of claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410255827.0A CN118030469A (en) | 2024-03-06 | 2024-03-06 | Compressor cylinder end structure, compressor and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410255827.0A CN118030469A (en) | 2024-03-06 | 2024-03-06 | Compressor cylinder end structure, compressor and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118030469A true CN118030469A (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410255827.0A Pending CN118030469A (en) | 2024-03-06 | 2024-03-06 | Compressor cylinder end structure, compressor and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118030469A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118517415A (en) * | 2024-07-22 | 2024-08-20 | 珠海凌达压缩机有限公司 | Valve plate, pump body assembly, enthalpy-increasing compressor and air conditioner |
-
2024
- 2024-03-06 CN CN202410255827.0A patent/CN118030469A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118517415A (en) * | 2024-07-22 | 2024-08-20 | 珠海凌达压缩机有限公司 | Valve plate, pump body assembly, enthalpy-increasing compressor and air conditioner |
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