CN109058078B - Compressor and refrigeration plant - Google Patents
Compressor and refrigeration plant Download PDFInfo
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- CN109058078B CN109058078B CN201810890147.0A CN201810890147A CN109058078B CN 109058078 B CN109058078 B CN 109058078B CN 201810890147 A CN201810890147 A CN 201810890147A CN 109058078 B CN109058078 B CN 109058078B
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- oil
- compressor
- oil storage
- cylinder
- storage tank
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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
- F04B39/02—Lubrication
-
- 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
- F04B39/02—Lubrication
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
Abstract
The invention discloses a compressor and refrigeration equipment, and belongs to the technical field of compressors. The compressor comprises a machine body, wherein a cylinder, a piston mechanism and an oil storage part are arranged in the machine body, and the oil storage part is used for storing lubricating fluid; a first oil storage tank is formed in the inner wall of the air cylinder, and an elastically deformable oil absorption valve plate is arranged in the first oil storage tank; the machine body is also provided with an oil suction pipeline, the oil suction end of the oil suction pipeline is communicated with the oil storage part, and the oil discharge end is communicated to the first oil storage tank and is controlled to be communicated or blocked by the elastic deformation of the oil suction valve plate. According to the compressor provided by the invention, the oil storage tank and the oil suction pipeline communicated with the oil storage tank are arranged on the inner wall of the cylinder, so that the lubricating fluid can be automatically extracted by utilizing the negative pressure generated by the reciprocating motion of the compressor to lubricate the piston mechanism during the operation of the compressor, the automatic oil supply operation can be realized without additionally arranging an oil pump device, the internal structure of the compressor is simplified, and the operation stability of the compressor is improved.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a compressor and refrigeration equipment.
Background
The linear compressor is a compressor type commonly used in the field of machinery at present, and the components of a machine body mainly comprise a shell, an oil supply device, an electromagnet assembly and the like, and the specific parts comprise a motor assembly, a cylinder, a piston, an exhaust valve plate, a rotor, a spring support assembly, a motor and the like; the linear compressor has the advantages of high compression efficiency, small overall size and the like.
The linear compressor generally adopts the reciprocating motion of the piston mechanism to perform compression operation, so that the lubrication of the piston mechanism by lubricating fluid such as lubricating oil is facilitated, which is an important guarantee that the linear compressor can reliably work for a long time. The prior linear compressor mainly uses an independent oil pump device as the oil supply power of lubricating oil, and the oil supply mode has the following defects: 1. more components, high cost, poor production process and assembly; 2. the compressor has large volume, the oil pump device occupies extra height space of the compressor, and the utilization rate is low; 3. the reliability is poor, and the problem of unstable operation of the compressor can be caused due to the addition of the oil pump device.
Disclosure of Invention
The invention provides a compressor and refrigeration equipment, and aims to solve the defects of the existing compressor in which an oil pump device is adopted for supplying oil. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of the present invention, there is provided a compressor, which includes a machine body, a cylinder, a driving module, a piston mechanism disposed in the cylinder, and an oil storage portion, wherein the driving module is configured to drive the piston mechanism to perform a reciprocating compression motion along an axial direction of the cylinder, and the oil storage portion is configured to store a lubricating fluid;
a first oil storage tank is formed in the inner wall of the air cylinder, and an elastically deformable oil absorption valve plate is arranged in the first oil storage tank;
the machine body is also provided with an oil suction pipeline, the oil suction end of the oil suction pipeline is communicated with the oil storage part, and the oil discharge end is communicated to the first oil storage tank and is controlled to be communicated or blocked by the elastic deformation of the oil suction valve plate.
In an optional embodiment, an oil discharge end of the oil suction pipeline is communicated to the bottom of the first oil storage tank, and the oil suction valve plate is arranged to be attached to the bottom of the first oil storage tank;
one end part of the oil suction valve plate is fixed with the bottom of the groove; the other end corresponds to the oil discharge end and can elastically tilt and reset so as to conduct or block the oil discharge end.
In an optional embodiment, the piston mechanism comprises a piston head and a piston rod, and a second oil storage tank is formed in the outer wall of the piston rod; when the piston mechanism performs reciprocating compression motion along the axial direction of the cylinder, the first oil storage tank and the second oil storage tank can be switched between a communication state and a separation state.
In an alternative embodiment, the distance between the first oil storage groove and the discharge end of the compressor is not less than the distance between the piston head and the discharge end of the piston mechanism when the piston mechanism moves to the maximum retreating position.
In an alternative embodiment, the second oil storage groove is an annular groove formed along the circumferential direction of the piston rod;
the engine body is also provided with an oil discharge pipeline, the oil inlet end of the oil discharge pipeline is communicated to the inner wall of the cylinder, and when the piston mechanism performs reciprocating compression motion along the axial direction of the cylinder, the second oil storage tank and the oil inlet end of the oil discharge pipeline can be switched between a communicating state and a separating state.
In an alternative embodiment, a distance between an edge of the first oil reservoir adjacent to the oil inlet end and the oil inlet end in the axial direction of the cylinder is greater than a groove width of the second oil reservoir in the axial direction of the cylinder.
In an alternative embodiment, the distance between the oil inlet end of the oil discharge pipeline and the air discharge end of the compressor is not less than the distance between the piston head and the air discharge end of the piston mechanism when the piston mechanism moves to the maximum retreating position.
In an alternative embodiment, the oil inlet end communicates with the second oil reservoir when the piston means is moved to the maximum advanced position.
In an alternative embodiment, the volume of the tank space of the first oil reservoir is not greater than the volume of the tank space of the second oil reservoir.
According to a second aspect of the present invention, there is also provided a refrigeration apparatus employing a compressor as any one of the first aspect provided above.
The invention adopts the technical scheme and has the beneficial effects that:
according to the compressor provided by the invention, the oil storage tank and the oil suction pipeline communicated with the oil storage tank are arranged on the inner wall of the cylinder, so that the lubricating fluid can be automatically extracted by utilizing the negative pressure generated by the reciprocating motion of the compressor to lubricate the piston mechanism during the operation of the compressor, the automatic oil supply operation can be realized without additionally arranging an oil pump device, the internal structure of the compressor is simplified, and the operation stability of the compressor is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
FIG. 1 is a first schematic view of the compressor according to an exemplary embodiment of the present invention;
FIG. 2 is a second schematic structural view of a compressor according to an exemplary illustrated invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of portion B of FIG. 2;
wherein, 1, a shell; 21. a mover; 22. a stator; 3. a cylinder; 31. an exhaust valve plate; 41. a piston head; 42. a piston rod; 5. an oil storage section; 61. a first oil reservoir; 62. a second oil reservoir; 63. an oil suction valve plate; 7. an oil suction pipeline; 71. an oil suction end; 72. an oil drainage end; 8. an oil discharge pipeline.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
FIG. 1 is a schematic view of an exemplary compressor according to the present invention, showing the piston mechanism of FIG. 1 in a maximum retracted position; fig. 2 is a schematic view of the compressor according to an exemplary embodiment of the present invention, showing the piston mechanism of fig. 2 in a maximum advanced position. FIG. 3 is an enlarged view of portion A of FIG. 1; fig. 4 is an enlarged view of a portion B of fig. 2.
As shown in fig. 1 to 4, the present invention provides a compressor, which includes a machine body, wherein the machine body includes a housing 1, and a driving module disposed inside the housing 1, and the driving module is configured to drive a piston mechanism to perform a reciprocating compression motion along an axial direction of a cylinder 3; the driving module comprises a stator 22 and a mover 21, a cylinder 3 is formed on the central axis of the stator 22 and the mover 21, a piston mechanism which performs reciprocating compression motion along the axial direction of the cylinder 3 is arranged in the cylinder 3, one end of the cylinder 3 is an exhaust end, an openable exhaust valve plate 31 is arranged at the exhaust end, and gas compressed by the piston mechanism can be exhausted through the exhaust end when the exhaust valve plate 31 is opened.
The compressor of the present invention further comprises an oil reservoir 5, the oil reservoir 5 being for storing a lubricating fluid; in the figure, the bottom space of the inner cavity of the shell 1 of the compressor is used as an oil storage part 5 for storing lubricating fluid; here, the lubricating fluid includes, but is not limited to, conventional lubricating media such as lubricating oil, and the present invention is not limited to a specific type of lubricating fluid.
First oil storage tank 61 has been seted up to the inner wall of cylinder 3, in this embodiment, first oil storage tank 61 indent in the inner wall of cylinder 3, the groove edge of first oil storage tank 61 is along the circumference and the axial extension shaping of cylinder 3 respectively, like this, first oil storage tank 61 can contact with piston mechanism with the biggest notch area to make as much as possible lubricated fluid can flow into the clearance between piston mechanism and the cylinder 3, can have the lubricated fluid of sufficient between cylinder 3 and the piston mechanism to lubricate, the lubricated effect to piston mechanism and cylinder 3 has been guaranteed.
An oil suction valve plate 63 which can be elastically deformed is arranged in the first oil storage tank 61; specifically, the oil suction valve plate 63 is of a sheet structure and is arranged close to the bottom of the first oil storage tank 61, one end of the oil suction valve plate is fixed to the bottom of the tank, and the other end of the oil suction valve plate is a free end and can elastically tilt and reset under the action of external force.
The machine body is also provided with an oil suction pipeline 7, an oil suction end 71 of the oil suction pipeline 7 is communicated with the oil storage part 5, and an oil discharge end 72 is communicated with the first oil storage groove 61 and is controlled to be communicated or blocked by the elastic deformation of the oil suction valve plate 63; here, when the free end of the oil suction valve plate 63 is elastically tilted, the lubrication flow path between the oil suction pipeline 7 and the first oil storage groove 61 is in a conduction state; when the free end of the oil suction valve plate 63 is reset, the lubrication flow path between the oil suction line 7 and the first oil reservoir 61 is blocked.
In the present embodiment, the piston mechanism is accompanied by the flow of the air flow between the piston mechanism and the cylinder 3 when the piston mechanism performs reciprocating compression operation in the cylinder 3; and the fixed one end of oil absorption valve block 63 is kept away from the exhaust end and is set up, and the free end is close to the exhaust end. When the piston mechanism moves backward away from the air release valve plate 31, the flow direction of the air flow brought by the piston mechanism is consistent with the backward direction of the piston mechanism, so that the air flow can elastically tilt the oil suction valve plate 63, and at the moment, the lubrication flow path between the oil suction pipeline 7 and the first oil storage groove 61 is in a conduction state; meanwhile, the air pressure in the first oil storage groove 61 is reduced due to the rapid flow of the air flow, when the air pressure in the first oil storage groove 61 is smaller than the air pressure of the oil storage part 5, the lubricating fluid in the oil storage part 5 enters the first oil storage groove 61 through the oil suction pipeline 7 and the oil suction valve plate 63 in sequence under the action of negative pressure, and can contact and adhere to the piston mechanism, and then along with the reciprocating motion of the piston mechanism, the lubricating fluid is carried to the gap between the piston mechanism and the cylinder 3, so that the piston mechanism and the cylinder are lubricated.
In this embodiment, the oil discharge end 72 of the oil suction pipeline 7 is communicated to the bottom of the first oil storage tank 61, the free end of the oil suction valve plate 63 corresponds to the oil discharge end 72 of the oil suction pipeline 7, and the oil discharge end 72 is elastically tilted and reset under the action of the external force of the air pressure of the air flow, so as to realize the automatic switching control of the connection or disconnection of the oil discharge end 72.
The piston mechanism includes a piston head 41 and a piston rod 42; optionally, the outer wall of the piston rod 42 is provided with a second oil storage tank 62; when the piston mechanism performs reciprocating compression motion in the axial direction of the cylinder 3, the first oil reservoir 61 and the second oil reservoir 62 can be switched between a communicating state and a separating state, as shown in fig. 1 in which they are in the communicating state, and in fig. 2 in which they are in the separating state.
In this embodiment, since the second oil storage groove 62 and the outer wall of the piston rod 42 are of an integral structure, the second oil storage groove 62 also reciprocates along with the piston rod 42, here, when the piston rod 42 moves backwards to the position shown in fig. 1, the first oil storage groove 61 and the second oil storage groove 62 are communicated, the volume of the oil storage space formed by the two oil storage grooves increases, and the change of the volume of the space also reduces the air pressure in the oil storage space, so that the pressure difference between the first oil storage groove 61 and the oil storage part 5 can be increased, and the lubricating fluid in the oil storage part 5 can be more conveniently sucked into the first oil storage groove 61 and the second oil storage groove 62 by the negative pressure; thereafter, as the first oil reservoir 61 continues to move forward along with the piston rod 42, the communication area between the first oil reservoir 61 and the second oil reservoir 62 gradually decreases until the two are separated, and a part of the lubricating fluid in the first oil reservoir 61 is squeezed into the gap between the cylinder 3 and the piston rod 42 to lubricate the two.
In the present embodiment, the second oil storage groove 62 is an annular groove formed along the circumferential direction of the piston rod 42, so that the lubricating fluid entering the second oil storage groove 62 via the first oil storage groove 61 can flow along the annular direction of the second oil storage groove 62, so that the lubricating fluid can flow from the entire circumferential direction of the second oil storage groove 62 to the gap between the cylinder 3 and the piston rod 42, the uniformity of the lubricating fluid in the gap between the cylinder 3 and the piston rod 42 is ensured, and the lubricating effect is improved.
In this embodiment, in order to avoid the problem that the lubricating fluid leaks from the first oil storage tank 61 into the compression space between the piston head 41 and the discharge valve plate 31 and pollutes the compression medium when the piston mechanism moves backwards, the opening position of the first oil storage tank 61 on the outer wall of the cylinder 3 should meet the requirement that the distance between the first oil storage tank 61 and the discharge end of the compressor is not less than the distance between the piston head 41 and the discharge end when the piston mechanism moves to the maximum backwards position; thus, the first oil reservoir 61 and the compression space between the piston head 41 and the discharge valve plate 31 are always kept from being in contact with each other, and the problem of leakage of the lubricating fluid can be effectively prevented.
In this embodiment, the engine body is further provided with an oil discharge pipeline 8, an oil inlet end of the oil discharge pipeline 8 is communicated to the inner wall of the cylinder 3, and an oil outlet end of the oil discharge pipeline 8 is connected to the oil storage portion 5, so that the lubricated fluid after being lubricated can be newly delivered back to the oil storage portion 5, a circulation loop of the lubricated fluid is formed among the oil storage portion 5, the oil suction pipeline 7, the cylinder 3 and the exhaust pipeline, and the reuse of the lubricated fluid is realized.
When the piston mechanism performs reciprocating compression motion in the axial direction of the cylinder 3, the second oil reservoir 62 and the oil inlet end of the oil discharge pipe 8 can be switched between a communicating state and a separating state. Specifically, when the piston mechanism moves to the position shown in fig. 2 (when the piston mechanism moves to the maximum advanced position), the oil inlet end communicates with the second oil reservoir 62, and at this time, the second oil reservoir 62 and the oil inlet end of the oil discharge line 8 are in a communicating state; when the piston mechanism moves to the position shown in fig. 1, the second oil reservoir 62 and the oil inlet end of the oil discharge line 8 are in a separated state.
Thus, when the piston mechanism moves to the position shown in fig. 1, the second oil reservoir 62 and the first oil reservoir 61 are in a communicating state, and the second oil reservoir 62 and the oil inlet end of the oil discharge line 8 are in a separated state; when the piston mechanism moves to the position shown in fig. 2, the second oil reservoir 62 and the first oil reservoir 61 are separated from each other, and the second oil reservoir 62 and the oil inlet end of the oil discharge line 8 are in a communicating state. A flow path communicating with each other is not formed between the first oil reservoir 61 and the oil discharge pipe 8, so that a sufficient negative pressure environment can be formed between the second oil reservoir 62 and the first oil reservoir 61, and the problem that the lubricating fluid entering from the first oil reservoir 61 flows back to the oil reservoir 5 from the oil discharge pipe 8 without being lubricated can be avoided.
Therefore, the opening position of the oil inlet end of the oil discharge pipeline 8 and the first oil storage groove 61 should meet the requirement that the distance between one side edge of the first oil storage groove 61 adjacent to the oil inlet end and the oil inlet end along the axial direction of the cylinder 3 is larger than the groove width of the second oil storage groove 62 along the axial direction of the cylinder 3.
In this embodiment, the oil inlet end of the oil discharge pipe 8 is opened at a position close to the air discharge valve 31, and the first oil reservoir 61 is opened at a position away from the air discharge valve 31.
Meanwhile, in order to avoid the problem that the compressed medium in the compression space between the piston head 41 and the exhaust valve plate 31 leaks through the oil inlet end of the oil exhaust pipeline 8, the oil inlet end of the oil exhaust pipeline 8 also meets the requirement that the distance between the oil inlet end of the oil exhaust pipeline 8 and the exhaust end of the compressor is not less than the distance between the piston head 41 and the exhaust end when the piston mechanism moves to the maximum retreating position.
Optionally, the tank space volume of the first oil reservoir 61 is not greater than the tank space volume of the second oil reservoir 62. Thus, after the lubricating fluid in the second oil storage groove 62 flows to the gap between the cylinder 3 and the piston rod 42, because the groove space of the second oil storage groove 62 is large, the second oil storage groove 62 can form a large negative pressure environment, and after the first oil storage groove 61 and the second oil storage groove 62 are communicated, the pressure difference can be effectively increased, so that the first oil storage groove 61 has enough negative pressure to tilt the oil suction valve plate 63 and suck the lubricating fluid from the oil storage part 5.
According to a second aspect of the present invention, there is also provided a refrigeration apparatus employing a compressor as any one of the embodiments provided above.
Alternatively, the refrigeration device includes, but is not limited to, an air conditioner, a refrigerator, and the like.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (6)
1. A compressor comprises a machine body, wherein a cylinder, a driving module, a piston mechanism and an oil storage part are arranged in the cylinder, the driving module is used for driving the piston mechanism to perform reciprocating compression motion along the axial direction of the cylinder, and the oil storage part is used for storing lubricating fluid; it is characterized in that the preparation method is characterized in that,
a first oil storage tank is formed in the inner wall of the air cylinder, and an elastically deformable oil suction valve plate is arranged in the first oil storage tank;
the machine body is also provided with an oil suction pipeline, the oil suction end of the oil suction pipeline is communicated with the oil storage part, the oil discharge end of the oil suction pipeline is communicated to the bottom of the first oil storage tank, and the oil suction valve plate is attached to the bottom of the first oil storage tank; one end part of the oil suction valve plate is fixed with the bottom of the groove; the other end corresponds to the oil discharge end and can elastically tilt and reset so as to conduct or block the oil discharge end;
the piston mechanism comprises a piston head and a piston rod, and a second oil storage tank is formed in the outer wall of the piston rod; the second oil storage tank is an annular groove formed along the circumferential direction of the piston rod; the engine body is also provided with an oil discharge pipeline, an oil inlet end of the oil discharge pipeline is communicated to the inner wall of the cylinder, and when the piston mechanism performs reciprocating compression motion along the axial direction of the cylinder, the second oil storage tank and the oil inlet end of the oil discharge pipeline can be switched between a communicating state and a separating state;
the distance between one side edge of the first oil storage groove, which is adjacent to the oil inlet end, and the oil inlet end along the axial direction of the cylinder is larger than the groove width of the second oil storage groove along the axial direction of the cylinder; the oil inlet end of the oil discharge pipeline is arranged at a position close to an exhaust valve plate of the compressor, and the first oil storage tank is arranged at a position far away from the exhaust valve plate.
2. The compressor of claim 1 wherein the first oil reservoir is spaced from the discharge end of the compressor by a distance no less than the distance between the piston head and the discharge end of the piston mechanism when it is moved to its maximum retracted position.
3. The compressor of claim 1, wherein a distance between the oil inlet end of the oil discharge pipeline and a gas discharge end of the compressor is not less than a distance between a piston head and the gas discharge end of the piston mechanism when the piston mechanism moves to a maximum retreating position.
4. A compressor according to claim 1 or 3, wherein said oil inlet end communicates with said second oil reservoir when said piston mechanism is moved to a maximum advanced position.
5. The compressor of claim 1, wherein a sump volume of said first oil sump is no greater than a sump volume of said second oil sump.
6. Refrigeration appliance, characterized in that it uses a compressor according to any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810890147.0A CN109058078B (en) | 2018-08-07 | 2018-08-07 | Compressor and refrigeration plant |
| PCT/CN2019/073422 WO2020029562A1 (en) | 2018-08-07 | 2019-01-28 | Compressor and refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810890147.0A CN109058078B (en) | 2018-08-07 | 2018-08-07 | Compressor and refrigeration plant |
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| Publication Number | Publication Date |
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| CN109058078A CN109058078A (en) | 2018-12-21 |
| CN109058078B true CN109058078B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810890147.0A Active CN109058078B (en) | 2018-08-07 | 2018-08-07 | Compressor and refrigeration plant |
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| WO (1) | WO2020029562A1 (en) |
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| CN109058078B (en) * | 2018-08-07 | 2021-03-23 | 青岛海尔智能技术研发有限公司 | Compressor and refrigeration plant |
| CN109162898B (en) * | 2018-08-07 | 2020-11-24 | 青岛海尔智能技术研发有限公司 | Compressor and refrigeration plant |
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| CN1158386A (en) * | 1995-12-29 | 1997-09-03 | Lg电子株式会社 | Oil supply and discharge apparatus for compressor |
| CN1548736A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Fuel supply device for reciprocating compressor |
| KR20050029397A (en) * | 2003-09-22 | 2005-03-28 | 엘지전자 주식회사 | Cylinder cooling structure for reciprocating compressor |
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| CN104110360A (en) * | 2013-04-22 | 2014-10-22 | 海尔集团公司 | Linear compressor and lubricating method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20050029417A (en) * | 2003-09-22 | 2005-03-28 | 엘지전자 주식회사 | Lubricating device of reciprocating compressor |
| CN104251198B (en) * | 2013-06-25 | 2018-01-09 | 青岛海尔智能技术研发有限公司 | The lubrication system of linear compressor |
| KR102121585B1 (en) * | 2013-09-16 | 2020-06-11 | 엘지전자 주식회사 | Reciprocating compressor |
| CN109058078B (en) * | 2018-08-07 | 2021-03-23 | 青岛海尔智能技术研发有限公司 | Compressor and refrigeration plant |
| CN109162898B (en) * | 2018-08-07 | 2020-11-24 | 青岛海尔智能技术研发有限公司 | Compressor and refrigeration plant |
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2018
- 2018-08-07 CN CN201810890147.0A patent/CN109058078B/en active Active
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2019
- 2019-01-28 WO PCT/CN2019/073422 patent/WO2020029562A1/en active Application Filing
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| CN1158386A (en) * | 1995-12-29 | 1997-09-03 | Lg电子株式会社 | Oil supply and discharge apparatus for compressor |
| CN1548736A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Fuel supply device for reciprocating compressor |
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| Publication number | Publication date |
|---|---|
| CN109058078A (en) | 2018-12-21 |
| WO2020029562A1 (en) | 2020-02-13 |
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