Air cylinder assembly, compressor and refrigerating system

Abstract

The utility model provides an air cylinder assembly, a compressor and a refrigerating system. A cylinder assembly includes a cylinder block, a vent hole, and a filter device. A working cavity is formed in the cylinder body; the exhaust hole is formed in the cylinder body and is communicated with the working cavity; the filtering device comprises a filtering rod, the filtering rod is inserted into the exhaust hole, an exhaust channel for discharging a refrigerant is formed between the peripheral wall of the filtering rod and the hole wall of the exhaust hole, and the peripheral wall of the filtering rod is provided with a rough part which is used for filtering the refrigerating machine oil when the refrigerant passes through the exhaust channel. The utility model solves the technical problems of poor circulation of refrigerating machine oil, high oiling rate of the compressor and foaming of the refrigerating machine oil in the compressor of the existing refrigerating system under the working conditions of low temperature and low frequency, and simultaneously can reduce the oil return operation times of the compressor when the refrigerating system runs.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a cylinder assembly, a compressor and a refrigeration system. Background Art

[0002] Currently, compressors used in refrigeration systems are typically rolling piston compressors, which consist of a cylinder, a rolling piston, an eccentric shaft, and a sliding plate. The cylinder is provided with an intake and exhaust port, and the rolling piston is rotatably positioned within the cylinder's working chamber. During operation, the eccentric shaft drives the rolling piston, which in turn divides the working chamber into an expansion chamber and a compression chamber. The intake port communicates with the expansion chamber, and the exhaust port communicates with the compression chamber, thereby achieving gas intake, compression, and exhaust.

[0003] When the refrigeration system is operating, the refrigerant oil is discharged from the compressor along with the refrigerant and then circulated back into the compressor. Refrigerant oil lubricates, seals, cools, and prevents corrosion in the compressor. Under existing refrigeration system control logic, the system must execute a preset oil return control logic during extended operation to prevent damage to the compressor due to a lack of refrigerant oil, which could affect the smooth operation of the refrigeration system. However, when the refrigeration system's compressor is started and operated under low-temperature, low-frequency conditions, it is prone to problems such as poor refrigerant oil circulation, high compressor oiling rates, and foaming of the refrigerant oil inside the compressor. This can easily lead to a lack of refrigerant oil inside the compressor, adversely affecting the safety and reliability of the refrigeration system. Therefore, when the refrigeration system is operating under low-temperature, low-frequency conditions, the refrigeration system needs to execute the oil return control logic multiple times. However, the frequent oil return operations increase the power consumption of the refrigeration system and affect normal heat exchange operation. Utility Model Content

[0004] In view of the above problems, the present invention is proposed to provide a cylinder assembly, a compressor and a refrigeration system that overcome the above problems or at least partially solve the above problems. It can solve the technical problems that the compressor of the existing refrigeration system is prone to poor refrigeration oil circulation, high compressor oiling rate and refrigeration oil foaming inside the compressor under low temperature and low frequency working conditions, and at the same time can reduce the number of oil return operations of the compressor when the refrigeration system is running.

[0005] Specifically, the utility model provides a cylinder assembly, comprising:

[0006] A cylinder body, wherein a working chamber is formed in the cylinder body;

[0007] an exhaust hole formed on the cylinder body and communicating with the working chamber;

[0008] A filtering device includes a filter rod, which is inserted into the exhaust hole. An exhaust channel for discharging refrigerant is formed between the outer peripheral wall of the filter rod and the hole wall of the exhaust hole. The outer peripheral wall of the filter rod has a rough portion, which is used to filter the refrigeration oil when the refrigerant passes through the exhaust channel.

[0009] Optionally, the rough portion is a groove or a protrusion formed on the outer peripheral wall of the filter rod.

[0010] Optionally, the rough portion is a spiral groove formed on the outer peripheral wall of the filter rod.

[0011] Optionally, the inlet of the exhaust hole is formed on the inner circumferential surface of the cylinder body, and the outlet is formed on the axial end surface of the cylinder body;

[0012] The spiral groove is configured such that the rotation direction of the spiral groove is opposite to the rotation direction of the airflow when it enters the inlet of the exhaust hole from the working chamber.

[0013] Optionally, a stop surface is formed on the filter rod and is located at the outlet end of the spiral groove.

[0014] Optionally, the axial direction of the cylinder body extends in the up-down direction, and the outlet of the exhaust hole is formed on the upper end surface of the cylinder body;

[0015] A through hole extending along the axial direction is formed in the filter rod, and a gap is formed between the bottom of the through hole and the bottom of the exhaust hole; and / or

[0016] The inlet of the exhaust hole extends along the axial direction of the cylinder body to the outlet of the exhaust hole.

[0017] Optionally, the filtering device further comprises:

[0018] A filter screen is arranged at the inlet and / or outlet of the exhaust hole and / or inside the hole.

[0019] Optionally, when the filter is arranged in the exhaust hole, the filter is sleeved outside the filter rod.

[0020] On the other hand, the present invention further provides a compressor, wherein the cylinder assembly is any one of the cylinder assemblies described above.

[0021] On the other hand, the present invention also provides a refrigeration system, including a compressor, wherein the compressor is the compressor as described above.

[0022] In the cylinder assembly, compressor, and refrigeration system of the present invention, a filter rod is inserted into the exhaust hole of the cylinder body, and the outer peripheral wall of the filter rod has a rough portion. When the compressor is exhausting, a mixture of gaseous refrigerant and refrigeration oil in the working chamber of the cylinder body enters the exhaust hole through the inlet of the exhaust hole. On the one hand, because the cross-sectional area of the exhaust passage is smaller than the cross-sectional area of the exhaust hole, the filter rod can prevent the mixture of gaseous refrigerant and refrigeration oil from forming a large number of bubbles. On the other hand, the rough portion on the outer peripheral surface of the filter rod can separate the gaseous refrigerant from the refrigeration mechanism, and the gaseous refrigerant is discharged to the outside of the cylinder body along the exhaust passage between the filter rod and the exhaust hole, and the refrigeration oil flows back to the inside of the working chamber of the cylinder body along the exhaust passage. It can be seen that the cylinder assembly has the function of filtering refrigeration oil.

[0023] To sum up, by adopting the cylinder assembly of the present invention, the refrigeration oil in the refrigeration oil mixture can be filtered during the exhaust stage of the compressor, thereby ensuring the permeability of the gas refrigerant, avoiding the formation of a large amount of bubble refrigeration oil, and preventing the refrigeration oil from being discharged from the compressor along with the gas refrigerant, thereby ensuring the amount of refrigeration oil inside the compressor.

[0024] Furthermore, under low-temperature and low-frequency operating conditions, the compressor can be prevented from being out of oil for a long time, thereby improving the operating stability of the refrigeration system.

[0025] Furthermore, during the operation of the compressor, the number of times the refrigeration system performs oil return control operations can be reduced, thereby reducing the power consumption of the refrigeration system.

[0026] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0028] Figure 1 is a schematic structural diagram of a cylinder assembly according to one embodiment of the present utility model;

[0029] Figure 2 is a schematic structural diagram of a cylinder assembly according to one embodiment of the present utility model;

[0030] Figure 3 is a schematic structural diagram of a cylinder assembly according to one embodiment of the present utility model;

[0031] Figure 4is a schematic structural diagram of a filtering device according to an embodiment of the present utility model;

[0032] Figure 5 It is a schematic structural diagram of a filtering device according to an embodiment of the present utility model.

[0033] List of reference numerals:

[0034] 100, cylinder body;

[0035] 110, exhaust hole;

[0036] 120, air intake;

[0037] 130, mounting slot;

[0038] 140, working chamber;

[0039] 200, filter rod; 210, spiral groove; 220, stop surface; 230, through hole;

[0040] 300, filter;

[0041] 400. Upper end cover. DETAILED DESCRIPTION

[0042] Refer to the following Figures 1 to 5 To describe the cylinder assembly, compressor and refrigeration system of the embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0043] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0044] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0046] Figure 1 Schematic diagram of the cylinder assembly according to one embodiment of the present invention. Figure 1 As shown, and reference Figures 2 to 5 An embodiment of the present invention provides a cylinder assembly, which includes a cylinder body 100, an exhaust hole 110 and a filtering device.

[0047] The cylinder body 100 has an inner cavity, which forms a working chamber 140. An exhaust hole 110 is formed in the cylinder body 100. The inlet of the exhaust hole 110 is connected to the working chamber 140, and the outlet of the exhaust hole 110 is connected to the outside of the cylinder body 100, thereby connecting the inside and outside of the cylinder body 100. The filter device includes a filter rod 200, which is inserted into the exhaust hole 110. An annular gap is defined between the outer peripheral wall of the filter rod 200 and the hole wall of the exhaust hole 110, forming an exhaust channel for the discharge of refrigerant. The outer peripheral wall of the filter rod 200 has a rough portion, which is used to filter the refrigeration oil when the refrigerant passes through the exhaust channel.

[0048] Specifically, the cylinder assembly is a component of the compressor, which is used to realize the working processes of suction, compression and exhaust of the compressor.

[0049] In this embodiment, a filter rod 200 is inserted into the exhaust hole 110 of the cylinder body 100, and the outer peripheral wall of the filter rod 200 has a rough surface. When the compressor is exhausting, a mixture of gaseous refrigerant and refrigeration oil in the working chamber 140 of the cylinder body 100 enters the exhaust hole 110 through the inlet of the exhaust hole 110. On the one hand, because the cross-sectional area of the exhaust passage is smaller than that of the exhaust hole 110, the action of the filter rod 200 can prevent the formation of a large number of bubbles in the mixture of gaseous refrigerant and refrigeration oil. On the other hand, the rough surface of the outer peripheral surface of the filter rod 200 can separate the gaseous refrigerant from the refrigeration mechanism. The gaseous refrigerant is discharged outside the cylinder body 100 along the exhaust passage between the filter rod 200 and the exhaust hole 110, while the refrigeration oil flows back into the working chamber 140 of the cylinder body 100 along the exhaust passage. Thus, the cylinder assembly has the function of filtering refrigeration oil.

[0050] To sum up, by using the cylinder assembly of this embodiment, the refrigeration oil in the refrigeration oil mixture can be filtered during the exhaust stage of the compressor, ensuring the permeability of the gas refrigerant, avoiding the formation of a large amount of bubble refrigeration oil, preventing the refrigeration oil from being discharged from the compressor along with the gas refrigerant, and ensuring the amount of refrigeration oil inside the compressor.

[0051] Furthermore, under low-temperature and low-frequency operating conditions, the compressor can be prevented from being out of oil for a long time, thereby improving the operating stability of the refrigeration system.

[0052] Furthermore, during the operation of the compressor, the number of times the refrigeration system performs oil return operations can be reduced, thereby reducing the power consumption of the refrigeration system.

[0053] In some optional embodiments of the present invention, the rough portion is a groove formed on the outer peripheral wall of the filter rod. Specifically, the groove can be one or more.

[0054] In this embodiment, the groove is used as the rough portion, which can facilitate processing and manufacturing and save production costs.

[0055] In some optional embodiments of the present invention, the rough portion is a protrusion formed on the outer peripheral wall of the filter rod 200 .

[0056] In this embodiment, the protrusion is used as the rough portion, which can reduce the space of the exhaust channel, thereby increasing the contact area between the exhaust rod and the refrigerant, which is more conducive to the separation of the refrigerant and the refrigeration oil, thereby achieving a better filtering effect.

[0057] like Figure 5 As shown, in some optional embodiments of the present invention, the rough portion is a spiral groove 210 formed on the outer peripheral wall of the filter rod 200. The spiral groove 210 forms a spiral channel.

[0058] In this embodiment, the spiral grooves 210 can be distributed on a section of the filter rod 200 or on the entire filter rod 200. Compared with the above two methods, the method of providing the spiral grooves 210 on the entire filter rod 200 is more conducive to the separation of refrigerant and refrigeration oil, thereby achieving a better filtering effect.

[0059] Furthermore, the spiral groove 210 structure serves as a flow guide. As the air flows along the spiral groove 210, the contact area between the airflow and the filter rod 200 is increased, resulting in a better filtration effect. Furthermore, the filtered refrigeration oil can quickly return to the bottom of the spiral groove 210 along the spiral groove 210.

[0060] In some optional embodiments of the present invention, the inlet of the exhaust hole is formed on the inner peripheral surface of the cylinder body, and the outlet of the exhaust hole is formed on the outer peripheral wall of the cylinder body.

[0061] like Figure 1 and Figure 2 As shown, in some optional embodiments of the present invention, the inlet of the exhaust hole 110 is formed on the inner circumferential surface of the cylinder body 100, and the outlet of the exhaust hole 110 is formed on the axial end surface of the cylinder body 100. The spiral groove 210 is configured such that the rotation direction of the spiral groove 210 is opposite to the rotation direction of the airflow when it enters the inlet of the exhaust hole 110 from the working chamber 140.

[0062] During operation, the mixture of gaseous refrigerant and refrigeration oil in the compression chamber of cylinder 100 flows clockwise into the inlet of exhaust port 110 and then changes direction counterclockwise. Therefore, designing spiral groove 210 to rotate counterclockwise can reduce airflow noise. The mixture of gaseous refrigerant and refrigeration oil spirals along counterclockwise spiral groove 210 within exhaust port 110, utilizing centrifugal force and gravity to separate the gaseous refrigerant from the refrigeration oil. The refrigeration oil also flows back through the spiral channel.

[0063] In some alternative embodiments of the present invention, the spiral groove is configured such that the rotation direction of the spiral groove is the same as the rotation direction of the airflow when it enters the inlet of the exhaust hole from the working chamber. Alternatively, the rotation direction of the spiral groove can also be other directions.

[0064] like Figure 4 and Figure 5 As shown, in some optional embodiments of the present invention, a stop surface 220 is formed on the filter rod 200 and is located at the outlet end of the spiral groove 210 .

[0065] In this embodiment, the stop surface 220 can be arranged perpendicular to the axial direction of the filter rod 200 or inclined to the axial direction of the spiral rod. The stop surface 220 functions to filter the refrigeration oil. Specifically, when the airflow reaches the outlet of the spiral groove 210, the stop surface 220 prevents the refrigeration oil in the mixture from flowing out of the outlet of the exhaust hole 110, thereby further filtering the refrigeration oil and causing it to flow back into the cylinder body 100. This further prevents oil shortages in the compressor and helps further improve the stability of system operation.

[0066] like Figure 1 and Figure 3 As shown, in some optional embodiments of the present invention, the axial direction of the cylinder body 100 extends in the vertical direction, and the outlet of the exhaust hole 110 is formed on the upper end surface of the cylinder body 100. In other words, the exhaust hole 110 extends in the vertical direction. Through this arrangement, under the action of gravity, the refrigeration oil and the gaseous refrigerant in the exhaust hole 110 are more easily separated, thereby preventing the refrigeration oil from being discharged from the cylinder body 100.

[0067] like Figure 5 As shown, in some optional embodiments of the present invention, a through hole 230 extending along the axial direction of the filter rod 200 is formed therein, with a gap between the bottom of the through hole 230 and the bottom of the exhaust hole 110. Providing the through hole 230 within the filter rod 200 facilitates the flow of refrigeration oil at the outlet of the exhaust hole 110 along the through hole 230 to the bottom of the exhaust hole 110, thereby returning to the cylinder body 100.

[0068] like Figure 1 As shown, in some optional embodiments of the present invention, the inlet of the exhaust hole 110 extends along the axial direction of the cylinder body 100 to the outlet of the exhaust hole 110. Through the above arrangement, the exhaust efficiency of the compressor can be improved.

[0069] In some optional embodiments of the present invention, the inlet of the exhaust hole extends along the axial direction of the cylinder body, and the length of the inlet of the exhaust hole is smaller than the total axial length of the exhaust hole.

[0070] In some optional embodiments of the present invention, the axial direction of the cylinder body extends in the horizontal direction, the exhaust hole is provided at the top of the cylinder body, and the outlet of the exhaust hole is formed on the left end surface or the right end surface of the cylinder body.

[0071] In some optional embodiments of the present invention, the axial direction of the cylinder body extends in the horizontal direction, the exhaust hole is provided at the top of the cylinder body, and the outlet of the exhaust hole is formed on the outer peripheral surface of the cylinder body.

[0072] like Figure 1 and Figure 4As shown, in some optional embodiments of the present invention, the filter device further includes a filter 300. The filter 300 can be set at at least one of the following three positions: the inlet of the exhaust hole 110, the outlet of the exhaust hole 110, and the inside of the exhaust hole 110.

[0073] Specifically, the filter device further includes at least one of a first filter, a second filter, and a third filter. The first filter is disposed at the inlet of the exhaust hole, covering the inlet of the exhaust hole; the second filter is disposed at the outlet of the exhaust hole, covering the outlet of the exhaust hole; and the third filter is disposed inside the exhaust hole. The third filter can be disposed perpendicular to the axial direction of the filter rod, can be disposed obliquely to the axial direction of the filter rod, or can be disposed in other directions.

[0074] By providing the filter 300 , a large number of bubbles in the refrigeration oil can be avoided, thereby further improving the filtering effect of the refrigeration oil in the exhaust stage.

[0075] like Figure 1 and Figure 4 As shown, in some optional embodiments of the present invention, the filter device includes a third filter. The third filter is cylindrical and disposed within the exhaust hole. The third filter is sleeved onto the filter rod. Compared to placing a filter at the inlet or outlet of the exhaust hole, placing a cylindrical filter within the exhaust hole provides a larger filtration area, thereby achieving better filtration results.

[0076] like Figures 1 to 5 As shown, in some optional embodiments of the present invention, the axial direction of the cylinder body 100 extends in the vertical direction, the inlet of the exhaust hole 110 is formed on the inner circumferential surface of the cylinder body 100, and the outlet of the exhaust hole 110 is formed on the upper end surface of the cylinder body 100. The exhaust hole 110 extends in the vertical direction, and the filter rod 200 is inserted into the exhaust hole 110. The outer circumferential wall of the filter rod 200 is formed with a spiral groove 210, and the spiral groove 210 forms a spiral channel. The filter rod 200 is formed with a stop surface 220 located at the outlet end of the spiral groove 210. The filter rod 200 is provided with a filter screen on the outer shell, and the filter screen is cylindrical.

[0077] The cylinder assembly further includes an upper end cover 400 , which is disposed on the upper end portion of the cylinder body 100 . An exhaust opening is provided on the upper end cover 400 , which is communicated with the outlet of the exhaust hole 110 .

[0078] When the mixture of gaseous refrigerant and refrigeration oil enters exhaust port 110, it first passes through a filter to prevent the mixture from forming a large amount of foam, ensure the permeability of the mixture, and avoid affecting the stability of the mixture's flow within the exhaust port. Furthermore, after entering the exhaust port, the mixture rises along a counterclockwise spiral channel, utilizing centrifugal force and gravity to further separate the gaseous refrigerant from the refrigeration oil. Simultaneously, the refrigeration oil is recirculated through the spiral channel. The top stop surface 220 further prevents the discharge of the refrigeration oil, ensuring that only the gaseous refrigerant is discharged and the refrigeration oil is recirculated. This avoids the problem of oil shortage during long-term compressor operation and improves the operational stability of the refrigeration system.

[0079] like Figure 1 and Figure 2 As shown, in some optional embodiments of the present invention, the cylinder body 100 is further formed with an air inlet 120 and a mounting groove 130. The mounting groove 130 is used to insert the slide plate, and the air inlet 120 is used to transport the low-temperature refrigerant into the cylinder body 100. The exhaust hole 110 and the air inlet 120 are respectively located on both sides of the mounting groove 130.

[0080] The utility model also provides a compressor, the compressor including a cylinder assembly, and the cylinder assembly is the cylinder assembly as described in any one of the above embodiments.

[0081] The utility model also provides a refrigeration system, comprising a compressor, wherein the compressor is the compressor described in the above embodiment.

[0082] In some optional embodiments of the present invention, the refrigeration system is an air-conditioning system.

[0083] In some optional embodiments of the present invention, the refrigeration system may also be a refrigerator or freezer or other refrigeration equipment.

[0084] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can be directly determined or deduced from the contents disclosed herein without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A cylinder assembly, characterized in that: include: A cylinder body, wherein a working chamber is formed in the cylinder body; an exhaust hole formed on the cylinder body and communicating with the working chamber; The filter device includes a filter rod, the filter rod is inserted into the exhaust hole, an exhaust channel for discharging refrigerant is formed between the outer peripheral wall of the filter rod and the hole wall of the exhaust hole, and the outer peripheral wall of the filter rod has a rough portion.

2. The cylinder assembly according to claim 1, characterized in that The rough portion is a groove or a protrusion formed on the outer peripheral wall of the filter rod.

3. The cylinder assembly according to claim 1, wherein: The rough portion is a spiral groove formed on the outer peripheral wall of the filter rod.

4. The cylinder assembly according to claim 3, characterized in that The inlet of the exhaust hole is formed on the inner peripheral surface of the cylinder body, and the outlet is formed on the axial end surface of the cylinder body; The spiral groove is configured such that the rotation direction of the spiral groove is opposite to the rotation direction of the airflow when it enters the inlet of the exhaust hole from the working chamber.

5. The cylinder assembly according to claim 3, characterized in that A stop surface is formed on the filter rod and is located at the outlet end of the spiral groove.

6. The cylinder assembly according to claim 4, wherein: The axial direction of the cylinder body extends in the up-down direction, and the outlet of the exhaust hole is formed on the upper end surface of the cylinder body; A through hole extending along the axial direction of the filter rod is formed in the filter rod, and a gap is formed between the bottom of the through hole and the bottom of the exhaust hole; and / or The inlet of the exhaust hole extends along the axial direction of the cylinder body to the outlet of the exhaust hole.

7. The cylinder assembly according to claim 1, wherein: The filtering device further comprises: A filter screen is arranged at the inlet and / or outlet of the exhaust hole and / or inside the hole.

8. The cylinder assembly according to claim 7, characterized in that: When the filter screen is arranged in the exhaust hole, the filter screen is sleeved outside the filter rod.

9. A compressor, characterized in that: It comprises a cylinder assembly, wherein the cylinder assembly is the cylinder assembly according to any one of claims 1 to 8.

10. A refrigeration system, characterized in that: The invention comprises a compressor, wherein the compressor is the compressor according to claim 9.

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