CN220910001U - Silencing cover assembly and rolling piston type compressor - Google Patents
Silencing cover assembly and rolling piston type compressor Download PDFInfo
- Publication number
- CN220910001U CN220910001U CN202322648461.7U CN202322648461U CN220910001U CN 220910001 U CN220910001 U CN 220910001U CN 202322648461 U CN202322648461 U CN 202322648461U CN 220910001 U CN220910001 U CN 220910001U
- Authority
- CN
- China
- Prior art keywords
- compressor
- silencing
- cover
- hole
- cover body
- 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.)
- Active
Links
- 230000030279 gene silencing Effects 0.000 title claims abstract description 110
- 238000005096 rolling process Methods 0.000 title claims abstract description 22
- 230000003584 silencer Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000001788 irregular Effects 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The utility model discloses a silencing cover assembly and a rolling piston type compressor, comprising a silencing cover body and a guide cover; the upper end face of the silencing cover body is provided with an exhaust hole; the guide cover is of a hollow annular cover body structure with two open ends and is coaxially arranged on the upper end face of the silencing cover body; the lower end of the air guide sleeve is connected with the upper end face of the silencing cover body, and the exhaust hole is positioned on the inner side of the inner wall of the air guide sleeve; the upper end of the guide cover extends towards the inner side of the lower end of the stator end plate in the compressor, and the upper end extension part of the guide cover is matched and connected with the lower end of the stator end plate; the silencing cover assembly is simple in structure and convenient to install, can simultaneously fulfill the aims of silencing, reducing noise and guiding the flowing direction of exhaust gas, avoids irregular diffusion of the gas, and effectively ensures the working performance of the compressor.
Description
Technical Field
The utility model belongs to the technical field of compressors, and particularly relates to a silencing cover assembly and a rolling piston type compressor.
Background
At present, in a rolling piston compressor, a silencing cover is additionally arranged on a main bearing cover, so that high-pressure cold gas compressed by a compressor cylinder enters the silencing cover after passing through the main bearing cover, the high-pressure cold gas can reduce pressure pulsation noise after expanding, and meanwhile, the structure acoustic impedance is changed to generate reflection or interference of sound waves, so that the purposes of silencing and reducing noise are achieved.
As shown in fig. 1, the existing silencing cover is a thin-wall cavity structure 1000, and exhaust holes are formed in the end face of the thin-wall cavity structure 1000 so that high-pressure cold gas after silencing treatment is discharged; however, after the high-pressure cold gas is discharged through the exhaust hole, the high-pressure cold gas is easy to diffuse to the inner cavity of the compressor cylinder body, so that the high-pressure cold gas flows irregularly, and the working performance of the compressor is greatly reduced.
Disclosure of utility model
Aiming at the technical problems in the prior art, the utility model provides a silencing cover assembly and a rolling piston type compressor, so as to solve the technical problems that the existing silencing cover structure is easy to cause irregular flow of high-pressure gas, and the working performance of the compressor is greatly reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a silencing cover assembly, which comprises a silencing cover body and a guide cover; the upper end face of the silencing cover body is provided with an exhaust hole; the guide cover is of a hollow annular cover body structure with two open ends and is coaxially arranged on the upper end face of the silencing cover body;
The lower end of the air guide sleeve is connected with the upper end face of the silencing cover body, and the exhaust hole is positioned on the inner side of the inner wall of the air guide sleeve; the upper end of the guide cover extends towards the inner side direction of the lower end of the stator end plate in the compressor, and the upper end extension part of the guide cover is matched and connected with the lower end of the stator end plate.
Further, the silencing cover body comprises an annular plate and a silencing cover body; the bottom surface of the annular plate is connected with the main bearing cover of the compressor, and the silencing cover body is of a convex structure formed by extending the inner circular arc end of the annular plate in a direction away from the main bearing cover of the compressor; the lower end of the guide cover is connected with the periphery of the upper end face of the silencing cover body.
Furthermore, the annular plate, the silencing cover body and the air guide cover adopt an integrated structure.
Further, a central through hole is formed in the center of the upper end face of the silencing cover body; the exhaust hole is positioned on the upper end face of the silencing cover body and is arranged between the central through hole and the inner wall of the guide cover.
The utility model also provides a silencing cover assembly which is characterized by comprising a silencing cover body and a guide cover; the upper end face of the silencing cover body is provided with an exhaust hole; the guide cover is of a hollow cylinder structure with an opening upper end and a closed lower end, and is coaxially arranged on the upper end face of the silencing cover body;
The closed end of the air guide sleeve is tightly fixed with the upper end face of the silencing cover body, a through hole is formed in the closed end of the air guide sleeve, and the through hole is communicated with the exhaust hole; the open end of the guide cover extends towards the inner side of the lower end of the stator end plate in the compressor, and the open end extension part of the guide cover is matched and connected with the lower end of the stator end plate.
Further, the silencing cover body comprises an annular plate and a silencing cover body; the bottom surface of the annular plate is connected with the main bearing cover of the compressor, and the silencing cover body is of a convex structure formed by extending the inner circular arc end of the annular plate in a direction away from the main bearing cover of the compressor; the closed end of the air guide sleeve is tightly fixed with the upper end face of the silencing cover body.
Further, the closed end of the air guide sleeve is fixedly connected with the upper end surface of the silencing cover body by welding or by using a fastener; wherein the fastener comprises a bolt or screw.
Further, a central through hole is formed in the center of the upper end face of the silencing cover body; a crankshaft through hole is formed in the center of the closed end of the air guide sleeve, and the crankshaft through hole is communicated with the central through hole;
The exhaust hole is positioned on the upper end surface of the silencing cover body and is arranged between the central through hole and the inner wall of the guide cover; the through hole is positioned between the crankshaft through hole and the inner wall of the air guide sleeve.
The utility model also provides a rolling piston type compressor, which comprises a compressor body and the silencing cover assembly; wherein, the compressor body is a vertical compressor or a horizontal compressor.
Further, the compressor body is a double-cylinder compressor.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model provides a silencing cover assembly and a rolling piston type compressor, which are used for silencing and reducing noise for high-pressure cold gas by arranging a silencing cover body; the upper end face of the silencing cover body is provided with the guide cover, and the upper end extension part of the guide cover is matched and connected with the lower end of the stator end plate in the compressor, so that the guide cover and the stator end plate are matched to form an approximately closed cavity, the approximately closed cavity is utilized to guide high-pressure cold gas after silencing treatment, so that the high-pressure cold gas is guided to flow to a circulation hole on a motor rotor in the compressor, further reaches the upper end part of the motor rotor, the regular fluidity of the high-pressure cold gas is ensured, the gas is prevented from diffusing everywhere in the inner cavity of the compressor cylinder, and the working performance of the compressor is ensured; meanwhile, the approximately closed cavity in the horizontal compressor can isolate the high-pressure cold gas from the oil pool, so that the gas is prevented from being mixed with oil in the oil pool, normal oil supply of an oil way is ensured, the mixing of the oil in the gas flowing process is avoided, and the oil discharge amount of the compressor is reduced; in summary, the silencing cover assembly is simple in structure and convenient to install, can simultaneously achieve the purposes of silencing, reducing noise and guiding the flowing direction of exhaust gas, avoids irregular diffusion of the gas, and effectively ensures the working performance of the compressor.
Drawings
FIG. 1 is a cross-sectional view of a conventional muffler cover;
FIG. 2 is a schematic perspective view of the muffler assembly according to embodiment 1;
FIG. 3 is a top view of the muffler cover assembly of example 1;
FIG. 4 is a cross-sectional view of the muffler cover assembly of example 1;
FIG. 5 is a top view of the muffler cover assembly of example 2;
FIG. 6 is a cross-sectional view of the muffler cover assembly of example 2;
Fig. 7 is a schematic view of a rolling piston compressor according to embodiment 3;
fig. 8 is a schematic view of a rolling piston compressor according to embodiment 4.
Wherein, 1000 thin wall cavity structures; 1a silencing cover body, 2a guide cover, 3a stator end plate, 4a motor rotor, 5 a motor stator, 6 an oil separation component and 7 an oil pool; a 111 annular plate, a 112 silencing cover; a 101 exhaust hole and a 102 central through hole; 201 gas flow holes, 202 crank shaft vias.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the following specific embodiments are used for further describing the utility model in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 2-4, embodiment 1 provides a muffler assembly, which includes a muffler body 1 and a guide shell 2, wherein the muffler body 1 is disposed at an upper end of a main bearing cap of a compressor; the air guide sleeve 2 is of a hollow annular sleeve body structure with two open ends, and the air guide sleeve 2 is coaxially arranged on the upper end face of the silencing sleeve body 1.
In this embodiment 1, the muffler cover body 1 includes an annular plate 111 and a muffler cover 112; the bottom surface of the annular plate 111 is connected with the main bearing cap of the compressor, and the silencing cover 112 is a convex structure formed by extending the inner circular arc end of the annular plate 111 towards the upper side far away from the main bearing cap of the compressor.
An exhaust hole 101 is formed in the upper end face of the silencing cover body 1, and a central through hole 102 is formed in the center of the upper end face of the silencing cover body 1; wherein the central through hole 102 is used for the crank shaft of the compressor to pass through; specifically, the exhaust hole 101 is located on the upper end surface of the silencing cover 112, the central through hole 102 is disposed at the center of the upper end surface of the silencing cover 112, and the exhaust hole 101 is located between the central through hole 102 and the inner wall of the air guide sleeve 2.
In this embodiment 1, the lower end of the air guide sleeve 2 is connected to the upper end face of the silencing cover body 1, the upper end of the air guide sleeve 2 extends toward the inner side of the lower end of the stator end plate in the compressor, and the upper end extension of the air guide sleeve 2 is connected to the lower end of the stator end plate in a matching manner.
The air guide cover 2 and the stator end plate form an approximately closed cavity, and the approximately closed cavity is used as a gas guide structure to guide the high-pressure cold gas discharged from the exhaust hole 101 to the circulation hole of the motor rotor of the compressor; preferably, the annular plate 111, the silencing cover 112 and the air guide cover 2 are integrally formed.
Working principle:
The silencer assembly of embodiment 1, wherein the silencer assembly is installed between a main bearing cap and a stator end plate of a compressor, and an upper end extension of a guide cover is connected with a lower end of the stator end plate in a matched manner, so that the guide cover and the stator end plate are matched to form an approximately closed cavity; when the device is used, compressed high-pressure cold gas in the compressor cylinder enters the silencing cover body after passing through the exhaust valve plate on the main bearing cover, and then flows out through the exhaust hole after being subjected to silencing and noise reduction treatment of the silencing cover body; the high-pressure cold gas after the sound elimination treatment is guided under the effect of the air guide cover, so that the high-pressure cold gas is guided to flow to the circulation hole of the motor rotor in the compressor, and then reaches the upper end part of the motor rotor through the circulation hole, the regular fluidity of the high-pressure cold gas is ensured, the gas is prevented from diffusing around in the inner cavity of the compressor cylinder, and the working performance of the compressor is ensured.
Example 2
As shown in fig. 5 to 6, a muffler cover assembly provided in this embodiment 2 is basically the same in structure and principle as the muffler cover assembly described in embodiment 1 above; the difference is that the air guide sleeve 2 is a hollow cylinder structure with an open upper end and a closed lower end, and is coaxially arranged on the upper end face of the silencing cover body 1.
Specifically, the closed end of the air guide sleeve 2 is tightly fixed with the upper end surface of the silencing cover body 1, the closed end of the air guide sleeve 2 is provided with a through hole 201, and the through hole 201 is communicated with the exhaust hole 101; the open end of the air guide sleeve 2 extends towards the inner side of the lower end of the stator end plate 3 in the compressor, and the open end extension part of the air guide sleeve 2 is matched and connected with the lower end of the stator end plate 3; the closed end of the air guide sleeve 2 is tightly attached to the upper end face of the silencing cover 112, and the closed end of the air guide sleeve 2 is fixedly connected with the upper end face of the silencing cover 112 by welding or by using a fastener; wherein the fastener comprises a bolt or screw.
In this embodiment 2, a crank via hole 202 is formed in the center of the closed end of the air guide sleeve 2, the crank via hole 202 is disposed through the central through hole 101, and the through hole 201 is located between the crank via hole 202 and the inner wall of the air guide sleeve 2; the crank through holes 202 and the central through hole 101 are the same in size and are coaxially arranged, and are used for the crank of the compressor to pass through.
The structure and the working principle of the other parts of the silencing cover assembly described in embodiment 2 are basically the same as the corresponding structure and the principle of the silencing cover assembly described in embodiment 1, and are not repeated here.
Example 3
In this embodiment 3, a vertical compressor is taken as an example.
As shown in fig. 7, embodiment 3 provides a rolling piston compressor, including a compressor body and a muffler assembly as described in the above embodiment 1 or 2; the compressor body is a vertical compressor and comprises a cylinder body, a motor assembly, a pump body assembly, a liquid storage device assembly, a silencing cover assembly and an oil separation component 6; the motor component and the pump body component are arranged in the cylinder body, the pump body component is positioned below the motor component, and the liquid reservoir component is positioned on one side of the cylinder body and is communicated with the inner cavity of the cylinder body.
In this embodiment 3, the motor assembly includes a stator end plate 3, a motor rotor 4, and a motor stator 5; the motor stator 5 is assembled at the upper end part of the cylinder body, the motor rotor 4 is concentrically assembled in the motor stator 5, the motor rotor 4 is assembled at the long shaft part of the crankshaft of the pump body assembly, and the motor rotor 4 is provided with a circulation hole for gas circulation; the stator end plate 3 is arranged at the lower end part of the motor stator 5, and the oil separating component 6 is arranged above the motor assembly; the silencing cover assembly is arranged between the main bearing cover of the pump body assembly and the stator end plate 3; specifically, the annular plate in the noise reduction cover assembly is fixedly connected with the upper end face of the main bearing cover, and the upper end extension part of the guide cover in the noise reduction cover assembly is matched and connected with the lower end of the stator end plate, so that the guide cover and the stator end plate are matched to form an approximately closed cavity.
It should be noted that, the motor assembly, the pump assembly and the liquid reservoir assembly in the compressor body are basically the same as the corresponding assemblies in the conventional vertical rolling piston compressor, and are not described herein.
In operation, the high-pressure cold gas compressed in the compressor cylinder enters the silencing cover body through the exhaust valve plate on the main bearing cover, and then flows out through the exhaust hole after being subjected to silencing and noise reduction treatment of the silencing cover body; guiding the high-pressure cold gas subjected to sound elimination under the action of the air guide cover so as to guide the high-pressure cold gas to flow to a circulation hole of a motor rotor in the compressor, and further to reach the upper end part of the motor rotor through the circulation hole; at the same time, the oil separation part 6 is utilized to separate oil and gas of the high-pressure cold gas, so as to reduce the oil discharge amount.
Example 4
In this embodiment 4, a horizontal compressor is taken as an example.
As shown in fig. 8, this embodiment 4 provides a rolling piston compressor having substantially the same structure and principle as the rolling piston compressor of embodiment 3 described above.
The difference is that in this embodiment 4, the compressor body is a horizontal compressor; specifically, the compressor body comprises a cylinder, a motor assembly and a pump body assembly; the motor component and the pump body component are both arranged in the cylinder, and an oil pool 7 is arranged in the cylinder; it should be noted that, the motor assembly, the pump assembly and the liquid reservoir assembly in the compressor body are basically the same as the corresponding assemblies in the conventional vertical rolling piston compressor, and are not described herein.
In this embodiment 4, the noise reduction cover assembly is disposed between the main bearing cap of the pump body assembly and the stator end plate 3; specifically, the silencing cover body 1 in the silencing cover assembly is fixedly connected with the upper end face of the main bearing cover, and the upper end extension part of the guide cover 2 in the silencing cover assembly is matched and connected with the lower end of the stator end plate 3, so that the guide cover 2 and the stator end plate 3 are matched to form an approximately closed cavity.
In the rolling piston compressor according to embodiment 4, besides the silencing and airflow guiding functions of embodiment 3, the silencing cover assembly can separate the gas discharged from the pump body assembly from the oil in the oil pool 7, so as to avoid the mixing and the influence of the gas and the oil, and not only ensure the normal oil supply of the oil path, but also avoid the mixing of the oil in the gas flowing process.
The utility model relates to a silencing cover assembly and a rolling piston type compressor, wherein the silencing cover assembly comprises a silencing cover body and a guide cover; wherein, the air guide sleeve is arranged at one side of the exhaust hole of the silencing cover; the silencing cover assembly can guide the flowing direction of the discharged gas to guide the gas to a specific area so as to avoid the gas from diffusing everywhere while silencing and reducing noise; in the rolling piston compressor, the compressor body can be a vertical compressor, a horizontal compressor or a double-cylinder compressor.
In the utility model, when the silencing group assembly is applied to the horizontal compressor, the silencing cover assembly can separate the gas from the oil in the oil pool, so that the mutual mixing and the mutual influence of the gas and the oil are avoided, the normal oil supply of an oil way is ensured, and the mixing of the oil in the gas flowing process is avoided.
In the utility model, the guide cover can be integrally processed with the silencing cover body, or an independent guide cover structure can be adopted, and the guide cover is integrally connected with the silencing cover body through welding or other connection modes; wherein the other connection means are fixedly connected, for example by means of fasteners.
According to the silencing cover assembly and the rolling piston type compressor, the silencing cover body is utilized to silence the gas discharged by the compressor, the flow direction of the gas is guided by the guide cover, the gas is guided to a specific area, oil carried in the gas is separated by the oil separating component, and the oil discharge amount of the compressor is reduced; in the rolling piston compressor, the upper end extension part of the guide cover is matched with the stator end plate at the lower part of the motor stator to form an approximately closed cavity, and gas discharged from the silencing cover body enters the approximately closed cavity area and then passes through the circulation holes on the motor rotor so that the gas reaches the upper end of the motor rotor, and oil carried in the gas is separated through the oil separation part to reduce the oil discharge amount of the compressor; if the silencing cover assembly is not arranged, the gas is diffused everywhere, part of the gas flows to the periphery, and irregular gas flow is caused.
In particular, in the horizontal compressor, because the bottom of the cylinder body is an oil pool, the pump body component, the silencing cover component, the motor component and the oil separating component are more or less immersed into oil and are contacted with the oil; therefore, the silencing cover assembly can also separate the gas from the oil in the oil pool, ensure normal oil supply of an oil way and avoid oil mixing in the gas flowing process.
The above embodiment is only one of the implementation manners capable of implementing the technical solution of the present utility model, and the scope of the claimed utility model is not limited to the embodiment, but also includes any changes, substitutions and other implementation manners easily recognized by those skilled in the art within the technical scope of the present utility model.
Claims (10)
1. The silencing cover assembly is characterized by comprising a silencing cover body (1) and a guide cover (2); an exhaust hole (101) is formed in the upper end face of the silencing cover body (1); the guide cover (2) is of a hollow annular cover body structure with two open ends and is coaxially arranged on the upper end face of the silencing cover body (1);
The lower end of the air guide sleeve (2) is connected with the upper end face of the silencing cover body (1), and the exhaust hole (101) is positioned on the inner side of the inner wall of the air guide sleeve (2); the upper end of the guide cover (2) extends towards the inner side direction of the lower end of the stator end plate (3) in the compressor, and the upper end extension part of the guide cover (2) is matched and connected with the lower end of the stator end plate (3).
2. A sound-deadening cap assembly according to claim 1, wherein the sound-deadening cap body (1) includes an annular plate (111) and a sound-deadening cap body (112); the bottom surface of the annular plate (111) is connected with a main bearing cover of the compressor, and the silencing cover body (112) is of a convex structure formed by extending an inner circular arc end of the annular plate (111) in a direction away from the main bearing cover of the compressor; the lower end part of the air guide sleeve (2) is connected with the periphery of the upper end surface of the silencing cover body (112).
3. The muffler assembly as defined in claim 2, wherein the annular plate (111), muffler body (112) and the pod (2) are integrally formed.
4. The muffler assembly as defined in claim 2, wherein the muffler body (112) has a central through hole (102) at the center of the upper end surface thereof; the exhaust hole (101) is positioned on the upper end face of the silencing cover body (112) and is arranged between the central through hole (102) and the inner wall of the guide cover (2).
5. The silencing cover assembly is characterized by comprising a silencing cover body (1) and a guide cover (2); an exhaust hole (101) is formed in the upper end face of the silencing cover body (1); the guide cover (2) is of a hollow cylinder structure with an opening upper end and a closed lower end, and is coaxially arranged on the upper end face of the silencing cover body (1);
The closed end of the air guide sleeve (2) is tightly attached to the upper end face of the silencing cover body (1), a through hole (201) is formed in the closed end of the air guide sleeve (2), and the through hole (201) is communicated with the exhaust hole (101); the open end of the air guide sleeve (2) extends towards the inner side direction of the lower end of the stator end plate (3) in the compressor, and the open end extension part of the air guide sleeve (2) is matched and connected with the lower end of the stator end plate (3).
6. A sound-deadening cap assembly according to claim 5, wherein the sound-deadening cap body (1) includes an annular plate (111) and a sound-deadening cap body (112); the bottom surface of the annular plate (111) is connected with a main bearing cover of the compressor, and the silencing cover body (112) is of a convex structure formed by extending an inner circular arc end of the annular plate (111) in a direction away from the main bearing cover of the compressor; the closed end of the air guide sleeve (2) is tightly fixed with the upper end face of the silencing cover body (112).
7. The silencer assembly according to claim 6, wherein the closed end of the guide sleeve (2) is fixedly connected with the upper end surface of the silencer body (112) by welding or by using a fastener; wherein the fastener comprises a bolt or screw.
8. The muffler assembly as defined in claim 6, wherein the muffler body (112) has a central through hole (102) at the center of the upper end surface thereof; a crankshaft through hole (202) is formed in the center of the closed end of the air guide sleeve (2), and the crankshaft through hole (202) is communicated with the central through hole (102);
The exhaust hole (101) is positioned on the upper end surface of the silencing cover body (112) and is arranged between the central through hole (102) and the inner wall of the guide cover (2); the through hole (201) is positioned between the crank shaft through hole (202) and the inner wall of the air guide sleeve (2).
9. A rolling piston compressor comprising a compressor body and a muffler assembly as claimed in any one of claims 1 to 8; wherein, the compressor body is a vertical compressor or a horizontal compressor.
10. A rolling piston compressor in accordance with claim 9, wherein said compressor body is a twin cylinder compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322648461.7U CN220910001U (en) | 2023-09-27 | 2023-09-27 | Silencing cover assembly and rolling piston type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322648461.7U CN220910001U (en) | 2023-09-27 | 2023-09-27 | Silencing cover assembly and rolling piston type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220910001U true CN220910001U (en) | 2024-05-07 |
Family
ID=90907181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322648461.7U Active CN220910001U (en) | 2023-09-27 | 2023-09-27 | Silencing cover assembly and rolling piston type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220910001U (en) |
-
2023
- 2023-09-27 CN CN202322648461.7U patent/CN220910001U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110645165B (en) | Cylinder head assembly, compressor and refrigerating device | |
| CN220910001U (en) | Silencing cover assembly and rolling piston type compressor | |
| CN117072448A (en) | Silencing cover assembly and rolling piston type compressor | |
| CN202690460U (en) | Low-noise dual exhaust structure of rotary compressor | |
| CN215521262U (en) | Compressor, fixing device and air conditioner | |
| CN207847950U (en) | A kind of compressor sound attenuation assembly, compressor and air conditioner | |
| CN201218180Y (en) | Compressor cylinder structure | |
| CN200971820Y (en) | Low noise air cleaner | |
| CN218913098U (en) | Silencer (muffler) | |
| CN219081851U (en) | Noise-reducing compressor exhaust device | |
| CN217233747U (en) | Air cylinder cover structure of air compressor for vehicle | |
| CN217055602U (en) | Amortization lid and compressor pump body for compressor | |
| CN220319768U (en) | Organism with gas storage cavity | |
| CN216922435U (en) | Air compressor machine aircraft nose box and air compressor machine | |
| CN214787911U (en) | Cylinder head, compressor and refrigeration plant | |
| CN214998228U (en) | Jet type vacuum pump silencer | |
| CN215762256U (en) | Exhaust pipe and exhaust cavity assembly for rotor compressor | |
| CN218669822U (en) | Compressor core structure and compressor | |
| CN215566491U (en) | Air compressor cylinder cover | |
| CN213540700U (en) | Water return structure of plunger pump | |
| CN208718892U (en) | A kind of cylinder cap and air compressor of air compressor | |
| CN220081635U (en) | Exhaust mute pipeline structure of air compressor | |
| CN213116705U (en) | Horizontal scroll compressor's second grade keeps off oily structure | |
| CN215370230U (en) | Static vortex air exhaust port mechanism of vortex compressor | |
| CN220185238U (en) | Novel air inlet channel and cylinder cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |