CN112343797B - Crankshaft oil pumping assembly, crankshaft assembly and compressor - Google Patents
Crankshaft oil pumping assembly, crankshaft assembly and compressor Download PDFInfo
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- CN112343797B CN112343797B CN202011075159.1A CN202011075159A CN112343797B CN 112343797 B CN112343797 B CN 112343797B CN 202011075159 A CN202011075159 A CN 202011075159A CN 112343797 B CN112343797 B CN 112343797B
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- oil
- crankshaft
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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
- F04B39/0207—Lubrication with lubrication control systems
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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
- F04B39/0094—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 crankshaft
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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
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0238—Hermetic compressors with oil distribution channels
- F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
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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
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention provides a crankshaft oil pumping assembly, a crankshaft assembly and a compressor. A crankshaft oil pumping assembly comprising: the shell is internally provided with a runner for lubricating oil circulation, and an oil suction port and an oil outlet are respectively formed at two ends of the runner; the stop block is movably arranged in the flow channel and controls the size of the oil outlet flow path by approaching to or separating from the oil outlet; the elastic piece is connected with the stop block and is used for providing elastic force for the stop block towards the direction of the oil suction port; the oil guide plate is fixedly arranged in the runner, and separates the oil suction port from a part close to the oil suction port. The invention can adaptively adjust the oil feeding amount along with the rotating speed, and avoid excessive oil feeding amount.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a crankshaft oil pumping assembly, a crankshaft assembly and a compressor.
Background
Currently, variable frequency refrigerator compressors are being developed toward miniaturization, high efficiency and wide frequency. In the existing refrigerator compressor lubrication system, oil pumping is controlled by the rotation speed of the compressor, and the oil pumping amount and the oil throwing height of a crankshaft are increased along with the increase of the rotation speed. When the compressor runs at a low rotation speed, the oil pumping amount of the compressor is too small, the lubrication effect of moving parts such as a bearing, a piston and the like is poor, and important parts of a pump body of the compressor are easy to wear. When the rotating speed is too low, the oil throwing height of the crankshaft is also low, lubricating oil cannot reach the cylinder head and other positions, and poor cooling effect of the cylinder head is easily caused. When the compressor runs at a high rotating speed, the oil pumping quantity of the compressor is too large, the circulation of lubricating oil is excessive, the oil storage of an oil pool is insufficient, and the lubricating effect is also poor. When the rotational speed is too high, compressor throws oil height and also increases, and in the compressor cylinder head subassembly was got into the muffler of breathing in can be passed over to lubricating oil, not only led to the cooling effect of cylinder head subassembly poor, still can increase compressed oil extraction volume. At present, a plurality of solutions are provided for low-frequency oil pumping of a compressor, and the invention mainly solves the problem of high-frequency oil pumping of a broadband compressor.
In order to solve the oil supply problem, a shaft hole is arranged in a crankshaft of a part of the compressor, and a small part of the pump core is arranged in the shaft hole; and the pump core is provided with a spiral groove, and the pump core and the crankshaft are rotatably arranged relatively, so that lubricating oil in the shaft hole rises to a part to be lubricated of the compressor under the action of the spiral groove. The oil pump structure of this compressor provides lubricating oil to the compressor through the effect of the helicla flute of shaft hole and pump core, and compared traditional centrifugal oil pump, the oil pump structure that has the pump core that sets up the helicla flute has stronger pump oil ability, has avoided the compressor to damage because of the lubrication is insufficient, and then makes the compressor operation safer, reliable. Although the oil pumping structure can improve the low-frequency oil pumping capacity of the compressor, the oil pumping capacity of the compressor is controlled by the rotating speed, and the problems that the oil pumping capacity of the high-frequency pump is too large and the oil throwing height is too high are still not solved.
Disclosure of Invention
In view of the above, the invention provides a crankshaft oil pumping assembly, a crankshaft assembly and a compressor, which are at least used for solving the technical problem of large high-frequency oil pumping amount in the prior art, and specifically:
in a first aspect, the present invention provides a crankshaft oil pumping assembly comprising:
the shell is internally provided with a runner for lubricating oil circulation, and an oil suction port and an oil outlet are respectively formed at two ends of the runner;
the stop block is movably arranged in the flow channel and controls the size of the oil outlet flow path by approaching to or separating from the oil outlet;
the elastic piece is connected with the stop block and is used for providing elastic force for the stop block towards the direction of the oil suction port;
the oil guide plate is fixedly arranged in the runner, and separates the oil suction port from a part close to the oil suction port.
Further optionally, the housing includes:
a first housing including a bottom wall and a side peripheral wall, the oil suction port being formed on the bottom wall;
and the second shell is in a cylindrical structure, one end of the second shell is connected with the first shell, and the other end of the second shell forms the oil outlet.
Further alternatively, the first housing includes an oil absorbing section and a connecting section, the oil absorbing section having a radial dimension smaller than the connecting section,
the oil suction port is formed at the end part of the oil suction section, the oil guide sheet is arranged in the oil suction section and is abutted to the inner wall of the oil suction section, and the oil guide sheet equally divides the inner cavity of the oil suction section and the oil suction port into two parts.
Further alternatively, the inner wall of the second housing forms a conical surface, and the inner diameter gradually decreases in a direction toward the oil outlet.
Further alternatively, the side wall of the stopper forms a tapered surface, and the inclination angle of the side wall of the stopper is the same as the inclination angle of the inner wall surface of the second housing.
Further alternatively, the second housing is configured as a tapered cylindrical structure,
the second shell is embedded into the connecting section of the first shell and is connected with the connecting section.
Further alternatively, the stop is disposed within the second housing,
the elastic piece is a tension spring, one end of the tension spring is connected to the oil guide piece, and the other end of the tension spring is connected to the stop block.
In a second aspect, the present invention provides a crankshaft assembly comprising:
the crankshaft is provided with an oil way for lubricating oil to circulate;
the crankshaft oil pumping assembly is connected with the crankshaft and can synchronously rotate along with the crankshaft,
the oil outlet communicates with a flow path on the crankshaft.
Further alternatively, the crankshaft includes:
the first end of the eccentric shaft is connected with one end of the main shaft, the axis of the eccentric shaft is parallel to the axis of the main shaft,
the oil way comprises a main runner arranged on the main shaft and an eccentric shaft runner arranged on the eccentric shaft, and the main shaft runner is communicated with the eccentric shaft runner.
Further alternatively, the end of the spindle extends into the connecting section of the first housing and is connected to the connecting section.
In a third aspect, the present invention provides a compressor comprising the above crankshaft assembly.
According to the invention, a self-adaptive adjusting mode is realized through the elastic piece and the stop block, part of kinetic energy in the high-frequency operation process of the oil pumping assembly is converted into elastic potential energy, and as the rotation speed of the compressor is increased, the kinetic energy of lubricating oil is increased, and meanwhile, the elastic potential energy converted into a combination of a spring and an oil baffle is also increased, so that the functions of automatically adjusting the high-frequency oil feeding amount and the oil throwing height of the broadband compressor are realized.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely examples of the present disclosure and other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 illustrates an exploded view of a crankshaft oil pumping assembly according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing an assembled state of a crankshaft oil pumping assembly according to an embodiment of the present invention;
FIG. 3 shows a schematic structural view of a crankshaft assembly according to an embodiment of the present invention.
In the figure:
1. a first housing; 2. a second housing; 3. an oil guiding sheet; 4. a stop block; 5. a tension spring; 6. a crankshaft; 61. a main shaft; 611. an oil feeding hole; 612. a main shaft oil groove; 613. an exhaust hole; 62. an eccentric shaft; 621. an oil throwing hole; 622. and an eccentric shaft oil groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two, but does not exclude the case of at least one.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.
According to the invention, by adopting a self-adaptive adjusting mode, part of kinetic energy in the high-frequency operation process of the oil pumping assembly is converted into elastic potential energy, and as the rotation speed of the compressor is increased, the kinetic energy of lubricating oil is increased, and meanwhile, the elastic potential energy converted into a combination of a spring and an oil baffle is also increased, so that the functions of automatically adjusting the high-frequency oil feeding and oil throwing height of the broadband compressor are realized. The invention is described in detail below in connection with specific embodiments:
as shown in fig. 1 and 2, the present invention provides a crankshaft oil pumping assembly, comprising:
the shell is internally provided with a runner for lubricating oil circulation, and an oil suction port and an oil outlet are respectively formed at two ends of the runner;
the stop block 4 is movably arranged in the flow passage, and the stop block 4 controls the size of the oil outlet flow passage by approaching or separating from the oil outlet;
the elastic piece is connected with the stop block 4 and is used for providing elastic force for the stop block 4 towards the direction of the oil suction port;
the oil guide plate 3 is fixedly arranged in the runner, and the oil guide plate 3 separates the oil suction port from a part of the runner close to the oil suction port.
Preferably, the housing is a split structure comprising:
a first housing 1, the first housing 1 including a bottom wall and a side peripheral wall, an oil suction port being formed on the bottom wall; and the second shell 2 is in a cylindrical structure, one end of the second shell 2 is connected with the first shell 1, the other end of the second shell forms an oil outlet, and a flow passage is formed inside the first shell 1 and the second shell 2.
Specifically, the first casing 1 includes oil absorption section and linkage segment, and oil absorption section radial dimension is less than the linkage segment, and lubricating oil passes through the less oil absorption section of size and gets into, then reentrant great linkage segment of size, and the size difference between oil absorption section and the link does benefit to the size lubricating oil circulation.
The oil suction port is formed at the end part of the oil suction section, the oil guide sheet 3 is arranged in the oil suction section and is in butt joint with the inner wall of the oil suction section, the oil guide sheet 3 equally divides the inner cavity of the oil suction section and the oil suction port into two parts, and when the crankshaft oil pumping assembly rotates, lubricating oil can enter through the oil suction port under the action of the oil guide sheet 3 and flows to the oil outlet along the flow passage.
Preferably, the inner wall of the second housing 2 forms a conical surface, the inner diameter gradually decreases along the direction towards the oil outlet, the stop block 4 is arranged in the second housing 2, correspondingly, the side wall of the stop block 4 forms a conical surface, the inclination angle of the side wall of the stop block 4 is the same as the inclination angle of the inner wall surface of the second housing 2, the flow passage area for the lubricating oil to flow out is reduced along with the reduction of the distance between the stop block 4 and the oil outlet, and the flow rate of the lubricating oil is reduced along with the increase of the distance between the stop block 4 and the oil outlet, otherwise, the flow passage area for the lubricating oil to flow out is increased along with the increase of the flow rate of the lubricating oil. Preferably, the four parameters of the inclination angle α and diameter of the second housing 2, the diameter of the stopper 4, and the elastic modulus of the tension spring 5 are related to the compressor. The wider the compressor operating frequency band, the greater the inclination angle α should be. The higher the highest frequency of compressor operation, the greater the spring modulus. The diameter of the stop block 4 is smaller than that of the oil outlet of the second shell 2, the minimum gap between the stop block and the oil outlet is related to the maximum rotating speed of the broadband compressor, and the larger the rotating speed is, the smaller the minimum gap is, but the normal oiling of the compressor with the minimum rotating speed is ensured.
In the present embodiment, the second housing 2 is constructed in a tapered cylindrical structure, the second housing 2 is fitted into the connecting section of the first housing 1 to be connected with the connecting section, and a gap is formed between the inner peripheral surface of the connecting section of the first housing 1 and the outer wall surface of the second housing 2 for connection with the crankshaft 6.
Preferably, the elastic member is a tension spring 5, one end of the tension spring 5 is connected to the oil guiding plate 3, and the other end is connected to the stop block 4, and preferably, the tension spring 5 is connected to the stop block 4 by welding, bonding or threaded connection. The tension spring 5 is connected with the oil guide plate 3 through a hook, and can also be connected by welding. When the rotating speed of the crankshaft oil pumping assembly is high, the suction force on the lubricating oil is increased, the kinetic energy of the lubricating oil is increased, the lubricating oil entering the shell acts on the stop block 4, the stop block 4 is pushed to move towards the oil outlet direction against the tensile force of the elastic piece, and the oil outlet amount of the oil outlet is reduced; when the rotating speed of the crankshaft oil pumping assembly is low, the suction force of lubricating oil is reduced, the kinetic energy of the lubricating oil is reduced, the acting force of the lubricating oil entering the shell on the stop block 4 is smaller than the tension of the elastic piece, the stop block 4 moves in the direction away from the oil outlet under the action of the tension, the oil outlet amount is increased, and the oil outlet amount is adaptively adjusted in the mode. The kinetic energy and the flow of the lubricating oil are automatically regulated through the rotating speed of the crankshaft 6, and the higher the rotating speed is, the higher the inhibition of the crankshaft oil pumping assembly on the flow and the kinetic energy is, so that the high-frequency oil pumping of the broadband compressor can be finally ensured to be normal
As shown in fig. 3, the present invention also provides a crankshaft assembly including:
the crankshaft 6, the crankshaft 6 is provided with an oil way for lubricating oil to circulate; the crankshaft oil pumping assembly is connected with the crankshaft 6 and can synchronously rotate along with the crankshaft 6, and the oil outlet is communicated with a flow path on the crankshaft 6.
The crankshaft 6 includes: the device comprises a main shaft 61 and an eccentric shaft, wherein a first end of the eccentric shaft is connected with one end of the main shaft 61, the axis of the eccentric shaft is parallel to the axis of the main shaft 61, and an oil path comprises a main runner arranged on the main shaft 61 and an eccentric shaft runner arranged on the eccentric shaft, and the main shaft runner is communicated with the eccentric shaft runner.
Specifically, the oil path is composed of an oil throwing hole 1, an eccentric shaft oil groove 622, an exhaust hole 613, a main shaft oil groove 612 and an upper oil hole 611, lubricating oil is lifted to the upper oil hole 611 by a crankshaft oil pumping assembly, flows through the main shaft oil groove 612 and flows into the oil throwing hole 1, part of lubricating oil enters the eccentric shaft oil groove 622, and the other part of lubricating oil is thrown out from the oil throwing hole 1.
The end of the main shaft 61 extends into the connecting section of the first housing 1 and is connected with the connecting section, i.e. the end of the main shaft 61 extends into the gap between the bottom connecting end and the second housing 2 and is in interference fit with the connecting end. The shell is connected with the bearing in a cold pressing mode, and the crankshaft oil pumping assembly is supported through the bearing.
The invention also provides a compressor which is a broadband compressor and comprises the crankshaft assembly, a shell and a pump body, wherein the crankshaft 6 is connected to the pump body, an oil storage groove is formed at the bottom of the shell, an oil suction port of the crankshaft oil pumping assembly extends into the oil storage groove and is positioned below the liquid level of lubricating oil, and the lubricating oil is pumped into the crankshaft 6 along with the rotation of the crankshaft 6, flows along an oil path on a main shaft 61 and is thrown onto related parts, so that a lubricating effect is achieved.
The crankshaft oil pumping assembly can automatically adjust the high-frequency oil pumping of the broadband compressor, and the crankshaft oil pumping assembly adopts a self-adaptive adjusting mode to convert part of kinetic energy in the high-frequency operation process of the oil pumping assembly into elastic potential energy, so that the kinetic energy of lubricating oil is increased along with the increase of the rotating speed of the compressor, and meanwhile, the elastic potential energy converted into a combination of a spring and an oil baffle is also increased, thereby realizing the functions of automatically adjusting the high-frequency oil feeding and the oil throwing height of the broadband compressor.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that this disclosure is not limited to the particular arrangements, instrumentalities and methods of implementation described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (13)
1. The utility model provides a bent axle pump oil subassembly which characterized in that: comprising the following steps:
the shell is internally provided with a runner for lubricating oil circulation, and an oil suction port and an oil outlet are respectively formed at two ends of the runner;
the stop block is movably arranged in the flow channel and controls the size of the oil outlet flow path by approaching to or separating from the oil outlet;
the elastic piece is connected with the stop block and is used for providing elastic force for the stop block towards the direction of the oil suction port;
the oil guide plate is fixedly arranged in the flow channel and separates the oil suction port from a part of the flow channel close to the oil suction port; the radial width of the oil guide plate, which is close to one end of the oil outlet, is larger than that of the oil suction port;
the elastic piece is a tension spring, one end of the tension spring is connected to the oil guide piece, and the other end of the tension spring is connected to the stop block.
2. A crankshaft oil pumping assembly as defined in claim 1, wherein: the housing includes:
a first housing including a bottom wall and a side peripheral wall, the oil suction port being formed on the bottom wall;
and the second shell is in a cylindrical structure, one end of the second shell is connected with the first shell, and the other end of the second shell forms the oil outlet.
3. The crankshaft oil pumping assembly of claim 2, wherein: the first shell comprises an oil absorption section and a connecting section, the radial size of the oil absorption section is smaller than that of the connecting section, the oil suction port is formed at the end part of the oil absorption section, the oil guide sheet is arranged in the oil absorption section and is abutted to the inner wall of the oil absorption section, and the oil guide sheet equally divides the inner cavity of the oil absorption section and the oil suction port into two parts.
4. A crankshaft oil pumping assembly as defined in claim 3, wherein: the inner wall of the second shell forms a conical surface, and the inner diameter of the second shell gradually reduces along the direction towards the oil outlet.
5. The crankshaft oil pumping assembly of claim 4, wherein: the side wall of the stop block forms a conical surface, and the inclination angle of the side wall of the stop block is the same as that of the inner wall surface of the second shell.
6. The crankshaft oil pumping assembly of claim 4, wherein: the second shell is constructed to be a conical tubular structure, and is embedded into the connecting section of the first shell to be connected with the connecting section.
7. The crankshaft oil pumping assembly of claim 4, wherein: the stop block is arranged in the second shell.
8. A crankshaft assembly, characterized by: comprising the following steps:
the crankshaft is provided with an oil way for lubricating oil to circulate;
the crankshaft oil pumping assembly of claim 1, said crankshaft being coupled to and capable of synchronous rotation with said crankshaft, said oil outlet being in communication with a flow path on said crankshaft.
9. A crankshaft assembly as claimed in claim 8, wherein: the crankshaft includes:
the device comprises a main shaft and an eccentric shaft, wherein the first end of the eccentric shaft is connected with one end of the main shaft, the axis of the eccentric shaft is parallel to the axis of the main shaft, the oil way comprises a main runner arranged on the main shaft and an eccentric shaft runner arranged on the eccentric shaft, and the main shaft runner is communicated with the eccentric shaft runner.
10. A crankshaft assembly, characterized by: comprising the following steps:
the crankshaft is provided with an oil way for lubricating oil to circulate;
the crankshaft oil pumping assembly of any one of claims 2-7 coupled to the crankshaft and capable of synchronous rotation therewith, the oil outlet in communication with a flow path on the crankshaft.
11. A crankshaft assembly as claimed in claim 10, wherein: the crankshaft includes:
the device comprises a main shaft and an eccentric shaft, wherein the first end of the eccentric shaft is connected with one end of the main shaft, the axis of the eccentric shaft is parallel to the axis of the main shaft, the oil way comprises a main runner arranged on the main shaft and an eccentric shaft runner arranged on the eccentric shaft, and the main shaft runner is communicated with the eccentric shaft runner.
12. A crankshaft assembly as claimed in claim 11, wherein: the crankshaft oil pumping assembly is the crankshaft oil pumping assembly as claimed in claim 7, and the end part of the main shaft extends into the connecting section of the first shell and is connected with the connecting section.
13. A compressor, characterized in that: a crankshaft assembly as claimed in any one of claims 8 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011075159.1A CN112343797B (en) | 2020-10-09 | 2020-10-09 | Crankshaft oil pumping assembly, crankshaft assembly and compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011075159.1A CN112343797B (en) | 2020-10-09 | 2020-10-09 | Crankshaft oil pumping assembly, crankshaft assembly and compressor |
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| CN112343797A CN112343797A (en) | 2021-02-09 |
| CN112343797B true CN112343797B (en) | 2023-06-13 |
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| CN113606223B (en) * | 2021-07-26 | 2024-06-07 | 浙江飞越机电有限公司 | Exhaust and oiling structure of hydraulic pipe fitting processing tool |
| CN114992091B (en) * | 2022-07-12 | 2023-11-17 | 珠海格力电器股份有限公司 | Reciprocating piston compressor and refrigerator |
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| CN101910563A (en) * | 2008-01-29 | 2010-12-08 | 松下电器产业株式会社 | Expander-integrated compressor and refrigeration cycle device using the same |
| CN110953140A (en) * | 2018-09-26 | 2020-04-03 | 安徽美芝制冷设备有限公司 | Crankshaft assembly, compressor and refrigeration equipment |
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| JP2000314379A (en) * | 1999-05-06 | 2000-11-14 | Hitachi Ltd | Hermetically sealed electrically driven compressor |
| KR100395957B1 (en) * | 2001-05-18 | 2003-08-27 | 주식회사 엘지이아이 | Oil Pumping apparatus for hermetic compressor |
| CN201891577U (en) * | 2010-11-25 | 2011-07-06 | 杭州钱江制冷集团有限公司 | Closed type oil pumping structure of compressor |
| KR102149737B1 (en) * | 2013-11-28 | 2020-10-26 | 삼성전자주식회사 | Compressor |
| KR20160127361A (en) * | 2015-04-27 | 2016-11-04 | 김종혁 | Oil Pumping Structure of Hermetic Compressor |
| CN107965442A (en) * | 2017-11-24 | 2018-04-27 | 加西贝拉压缩机有限公司 | A kind of compressor pump oil regulating device |
| CN110761972A (en) * | 2018-07-27 | 2020-02-07 | 安徽美芝制冷设备有限公司 | Compressor and refrigerating system and refrigerator with same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910563A (en) * | 2008-01-29 | 2010-12-08 | 松下电器产业株式会社 | Expander-integrated compressor and refrigeration cycle device using the same |
| CN110953140A (en) * | 2018-09-26 | 2020-04-03 | 安徽美芝制冷设备有限公司 | Crankshaft assembly, compressor and refrigeration equipment |
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