CN112483396B

CN112483396B - Compressor pump and compressor

Info

Publication number: CN112483396B
Application number: CN202011503764.4A
Authority: CN
Inventors: 张科; 叶晓飞; 康炎平
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2025-05-16
Anticipated expiration: 2040-12-17
Also published as: CN112483396A

Abstract

The present invention provides a compressor pump body and a compressor. The compressor pump body includes a crankshaft, a first flange and a cylinder, the first flange and the cylinder are both sleeved on the crankshaft, and the first flange is located above the cylinder; an exhaust port is provided on the first flange; the compressor pump body also includes: a muffler structure, including an outer shell and an outlet of the muffler structure, the outer shell cover is provided on the first flange and forms a first throttling channel with the first flange, and the exhaust port is connected to the first throttling channel; a second throttling channel is formed between the first flange and the cylinder, the second throttling channel has an expansion chamber, and the second throttling channel is connected to the first throttling channel, so that the refrigerant discharged from the exhaust port passes through the first throttling channel and the second throttling channel in sequence and then is discharged from the outlet of the muffler structure. The compressor pump body of the present invention solves the problem of low transmission loss of the muffler in the prior art in a wider frequency range.

Description

Compressor pump body and compressor

Technical Field

The invention relates to the field of compressors, in particular to a compressor pump body and a compressor.

Background

The rolling rotor compressor compresses refrigerant through a pump body structure, compresses the refrigerant from a low-temperature low-pressure state to a high-temperature high-pressure state, and discharges the refrigerant through an exhaust port of the pump body structure, strong airflow impact force and pressure pulsation are generated in the exhaust process due to high refrigerant pressure, wide-frequency-band pneumatic noise is caused, the airflow impact force and the pressure pulsation in the exhaust process simultaneously act on a mechanical structure of the compressor to generate mechanical noise, and the exhaust pressure pulsation is transmitted to an air conditioner inner machine along with the refrigerant flow to cause air conditioner transmission sound. Therefore, the quality of the discharge pressure pulsation control is directly related to the sound quality of the compressor and the air conditioner.

At present, the rolling rotor compressor mainly controls exhaust pressure pulsation through designing a resistant silencer at an exhaust port, however, the existing silencer design has more defects that firstly, the existing silencer design is influenced by the mounting height of a compressor motor and a pump body limit screw, so that the transmission loss of the existing silencer in certain frequency ranges is lower, secondly, the existing silencer mainly has an upper exhaust mode and a side exhaust mode, the impact force and the pressure pulsation of the exhaust airflow of the upper exhaust silencer directly act on a motor rotor, so that the operation of the compressor rotor is unstable, electromagnetic noise is generated, the impact force of the exhaust airflow of the side exhaust silencer acts on a shell, so that return oil of refrigerating oil in the compressor is blocked, the energy efficiency of reducing the oil quantity in the compressor is reduced, the heat exchange efficiency of the oil quantity in the refrigerant circulation of a system is reduced, and the energy efficiency of the system is reduced.

Disclosure of Invention

The invention mainly aims to provide a compressor pump body and a compressor, so as to solve the problem that the muffler in the prior art has lower transmission loss in a wider frequency range.

In order to achieve the above object, according to one aspect of the present invention, there is provided a compressor pump body including a crankshaft, a first flange and a cylinder, the first flange and the cylinder are all sleeved on the crankshaft, the first flange is located above the cylinder, an exhaust port is provided on the first flange, the compressor pump body further includes a silencing structure including a housing and a silencing structure outlet, the housing is covered on the first flange and forms a first throttling channel with the first flange, the exhaust port is communicated with the first throttling channel, a second throttling channel is formed between the first flange and the cylinder, the second throttling channel has an expansion chamber, and the second throttling channel is communicated with the first throttling channel, so that refrigerant discharged from the exhaust port is discharged from the silencing structure outlet after passing through the first throttling channel and the second throttling channel in sequence.

Further, the second throttling channel comprises a first communication channel, one end of the first communication channel is communicated with the first throttling channel, the other end of the first communication channel is communicated with the expansion chamber, and the flow cross section area of the first communication channel is smaller than that of the expansion chamber.

Further, the second throttling channel comprises at least two expansion chambers, the at least two expansion chambers are arranged at intervals, the two adjacent expansion chambers are communicated through the second communication channel, and the flow cross section area of the second communication channel is smaller than that of the expansion chambers.

The first flange is provided with a first end face and a second end face which are oppositely arranged, the first end face is positioned above the second end face, the cylinder is provided with a first concave portion, a second concave portion and a third concave portion, the first concave portion and the second end face form an expansion chamber, the second concave portion and the second end face form a first communication channel, and the third concave portion and the second end face form a second communication channel.

Further, the first flange is provided with a first end face and a second end face which are oppositely arranged, the first end face is positioned above the second end face, the shell cover is arranged on the first end face, the exhaust port is positioned on the first end face, and the shell cover is arranged on the exhaust port.

Further, the silencing structure is provided with a first throttling channel outlet communicated with the first throttling channel and a second throttling channel inlet communicated with the first throttling channel, the first throttling channel outlet is arranged on the first end face, the second throttling channel inlet is arranged on the second end face, and the first throttling channel outlet is communicated with the second throttling channel inlet.

Further, the silencing structure outlet is arranged on the side wall of the first flange, and the silencing structure outlet is arranged opposite to the skirt edge of the first flange.

The first flange is provided with a fourth concave part, the fourth concave part forms a communication port and a silencing structure outlet, the communication port is communicated with the silencing structure outlet, the communication port is positioned on the second end face, and the communication port is communicated with the second throttling channel.

Further, the first flange is an upper flange of the compressor pump body, the compressor pump body further comprises a lower flange, the lower flange is arranged below the upper flange, and the air cylinder is arranged between the upper flange and the lower flange.

According to another aspect of the present invention, there is provided a compressor comprising a compressor body, wherein the compressor body is the compressor body described above.

The compressor pump body comprises a crankshaft, a first flange, a cylinder and a silencing structure, wherein the silencing structure is arranged on the compressor pump body, so that high-temperature and high-pressure refrigerant discharged through an exhaust port enters a first throttling channel, pressure pulsation of a certain frequency range is weakened after the high-temperature and high-pressure refrigerant passes through throttling action of the first throttling channel, then the high-temperature and high-pressure refrigerant enters a second throttling channel, exhaust pressure pulsation of a part of frequency ranges can be further weakened after the high-temperature and high-pressure refrigerant passes through an expansion chamber, and therefore the exhaust pressure pulsation of the refrigerant is still larger at certain frequency after the refrigerant passes through throttling of the first throttling channel, namely, transmission loss is small, and the exhaust pressure pulsation at the corresponding frequency is weakened through arrangement of the expansion chamber, so that the silencing structure has high transmission loss in a wide frequency range.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

Fig. 1 shows a schematic structural view of an embodiment of a compressor pump body according to the invention;

FIG. 2 shows a cross-sectional view at section A-A of the compressor pump body of FIG. 1;

FIG. 3 shows a cross-sectional view at section B-B of the compressor pump body of FIG. 1;

FIG. 4 shows a schematic view from the bottom of a first flange of a compressor pump body according to the present invention;

Fig. 5 shows a bottom view of a first flange of a compressor pump body according to the present invention;

fig. 6 shows a schematic structural view of a cylinder of a compressor pump body according to the present invention;

FIG. 7 shows a cross-sectional view at section C-C of a cylinder of the compressor pump body of FIG. 6;

FIG. 8 shows a cross-sectional view of an embodiment of a compressor according to the present invention;

Fig. 9 is a schematic view showing a flow path of a refrigerant in the compressor according to the present invention;

Fig. 10 is a comparative view showing the transmission loss of the muffler in the related art and the muffler structure of the present invention.

Wherein the above figures include the following reference numerals:

10. The crankshaft, 20, the first flange, 21, the first end face, 22, the second end face, 23, the exhaust port, 24, the skirt, 25, the fourth concave part, 30, the cylinder, 31, the first concave part, 32, the second concave part, 33, the third concave part, 40, the silencing structure, 41, the shell, 42, the silencing structure outlet, 43, the first throttling channel, 44, the second throttling channel, 441, the expansion chamber, 442, the first communication channel, 443, the second communication channel, 45, the first throttling channel outlet, 46, the second throttling channel inlet, 47, the communication port, 50, the lower flange;

12. Roller, 13, screw, 14, frozen oil;

1. A knockout component; 2, an upper cover assembly, 3, a shell assembly, 4, a rotor assembly, 5, a stator assembly, 6, a compressor pump body, 7, a lower cover, 8, an upper exhaust port, 9 and a side exhaust port.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The invention provides a compressor pump body, referring to fig. 1-9, comprising a crankshaft 10, a first flange 20 and a cylinder 30, wherein the first flange 20 and the cylinder 30 are sleeved on the crankshaft 10, the first flange 20 is positioned above the cylinder 30, an exhaust port 23 is arranged on the first flange 20, the compressor pump body further comprises a silencing structure 40, the compressor pump body comprises a shell 41 and a silencing structure outlet 42, the shell 41 covers the first flange 20 and forms a first throttling channel 43 with the first flange 20, the exhaust port 23 is communicated with the first throttling channel 43, a second throttling channel 44 is formed between the first flange 20 and the cylinder 30, the second throttling channel 44 is provided with an expansion chamber 441, and the second throttling channel 44 is communicated with the first throttling channel 43, so that refrigerant discharged from the exhaust port 23 sequentially passes through the first throttling channel 43 and the second throttling channel 44 and is discharged from the silencing structure outlet 42.

The compressor pump body comprises a crankshaft 10, a first flange 20, a cylinder 30 and a silencing structure 40, wherein the silencing structure 40 is arranged to enable high-temperature and high-pressure refrigerant discharged through an exhaust port 23 to enter a first throttling channel 43, pressure pulsation of a certain frequency range is weakened after the high-temperature and high-pressure refrigerant passes through the throttling effect of the first throttling channel 43, then the high-temperature and high-pressure refrigerant enters a second throttling channel 44, and exhaust pressure pulsation of a part of the frequency range can be further weakened after the high-temperature and high-pressure refrigerant passes through an expansion chamber 441, so that the refrigerant exhaust pressure pulsation is still larger at certain frequency after the refrigerant is throttled by the first throttling channel 43, namely, transmission loss is small, and the exhaust pressure pulsation at the corresponding frequency is weakened through the arrangement of the expansion chamber 441, so that the silencing structure has high transmission loss in a wide frequency range.

In this embodiment, the second throttling channel 44 includes a first communication channel 442, one end of the first communication channel 442 is communicated with the first throttling channel 43, the other end of the first communication channel 442 is communicated with the expansion chamber 441, and the flow cross-sectional area of the first communication channel 442 is smaller than the flow cross-sectional area of the expansion chamber 441. This arrangement allows the sound deadening structure to have high transmission loss over a wide frequency range.

In this embodiment, the second throttling channel 44 includes at least two expansion chambers 441, at least two expansion chambers 441 are disposed at intervals, two adjacent expansion chambers 441 are communicated through a second communication channel 443, and the flow cross-sectional area of the second communication channel 443 is smaller than the flow cross-sectional area of the expansion chambers 441. This arrangement allows the sound deadening structure to have high transmission loss over a wide frequency range.

In one embodiment, the second restriction 44 includes two expansion chambers 441. The arrangement ensures that the silencing structure has high transmission loss in a wider frequency range, and has strong feasibility.

Specifically, the critical dimensions of the expansion chamber can be designed according to specific conditions, and the exhaust pressure pulsation at corresponding frequencies is reduced, so that the silencing structure has high transmission loss in a wider frequency range. Wherein, the critical dimension of the expansion chamber is the cross-sectional flow area of the expansion chamber. In one embodiment, the critical dimensions of the expansion chamber are calculated from the expansion chamber inner radius R1, the expansion chamber outer radius R2 and the expansion chamber depth H1 in fig. 6 and 7, i.e., (R2-R1) ×h1 values, the expansion ratio of the expansion chamber is changed, the maximum transmission loss frequency of the expansion chamber is adjusted, and the maximum transmission loss frequency of the expansion chamber is adjusted to the minimum frequency of the first throttling channel 43, so that the transmission losses of the first throttling channel 43 and the second throttling channel 44 are complemented, and the silencing structure has higher transmission loss in a wide frequency band. The transmission loss of the silencing structure in the whole wide frequency range of 1K-3K is obviously higher than that of the prior scheme through simulating the transmission loss of the silencing structure, as shown in figure 10.

The curve No. 1 in fig. 10 is a transmission loss value of the silencing structure of the present application in a wide frequency band, and the curve No. 2 is a transmission loss value of the existing silencer in a wide frequency band, specifically, the horizontal axis represents the frequency band, and the vertical axis represents the transmission loss.

In the present embodiment, the first flange 20 has a first end surface 21 and a second end surface 22 disposed opposite to each other, the first end surface 21 being located above the second end surface 22, the cylinder 30 is provided with a first recess 31, a second recess 32, and a third recess 33, the first recess 31 and the second end surface 22 form an expansion chamber 441, the second recess 32 and the second end surface 22 form a first communication passage 442, and the third recess 33 and the second end surface 22 form a second communication passage 443. Specifically, the first concave portion 31, the second concave portion 32, and the third concave portion 33 are grooves. This arrangement maximizes the flow path of the second throttle passage 44.

In the present embodiment, the first flange 20 has a first end surface 21 and a second end surface 22 disposed opposite to each other, the first end surface 21 is located above the second end surface 22, the housing 41 is covered on the first end surface 21, the exhaust port 23 is located on the first end surface 21, and the housing 41 is covered on the exhaust port 23.

In the present embodiment, the sound deadening structure 40 has the first throttle passage outlet 45 communicating with the first throttle passage 43 and the second throttle passage inlet 46 communicating with the first communication passage 442, the first throttle passage outlet 45 is provided on the first end surface 21, the second throttle passage inlet 46 is provided on the second end surface 22, and the first throttle passage outlet 45 and the second throttle passage inlet 46 communicate. Specifically, the first flange 20 is provided with a third communication passage through which the first throttle passage outlet 45 and the second throttle passage inlet 46 communicate.

In this embodiment, the sound attenuating structure outlet 42 is disposed on a side wall of the first flange 20, with the sound attenuating structure outlet 42 disposed opposite the skirt 24 of the first flange 20. By the arrangement, the refrigerant throttled by the first throttling channel 43 and the second throttling channel 44 is discharged from the silencing structure outlet 42 and directly acts on the skirt 24, so that the operation of a motor rotor of the compressor and the oil return inside the compressor are not influenced, the noise level and the energy efficiency of the compressor are improved, and the problems of electromagnetic noise generated by exhaust pulsation of the existing silencer outlet or oil shortage in the compressor are solved.

In the present embodiment, the first flange 20 has a first end surface 21 and a second end surface 22 which are disposed opposite to each other, the first end surface 21 is located above the second end surface 22, a fourth recess 25 is disposed on the first flange 20, the fourth recess 25 forms a communication port 47 and a muffler structure outlet 42, the communication port 47 communicates with the muffler structure outlet 42, the communication port 47 is located on the second end surface 22, and the communication port 47 communicates with the second throttle passage 44. This arrangement provides for communication between the muffler structure outlet 42 and the second throttle passage 44.

Specifically, the communication port 47 communicates with the last expansion chamber 441 of the at least two expansion chambers 441, and the last expansion chamber 441 refers to the last expansion chamber 441 through which the refrigerant flows.

In this embodiment, the first flange 20 is an upper flange of a compressor pump body, the compressor pump body further includes a lower flange 50, the lower flange 50 is disposed below the upper flange, and the cylinder 30 is disposed between the upper flange and the lower flange 50.

In specific implementation, after the cylinder 30 compresses the refrigerant, the high-temperature and high-pressure refrigerant enters the first throttling channel 43 through the exhaust port 23 of the first flange 20, the high-temperature and high-pressure refrigerant can weaken pressure pulsation of a certain frequency band through the first throttling channel 43, then the high-temperature and high-pressure refrigerant enters the second throttling channel 44 through the second throttling channel inlet 46 after passing through the first throttling channel outlet 45, and after throttling through the first throttling channel 43, the refrigerant exhaust pressure pulsation is still larger at certain frequency (transmission loss is small), and the exhaust pressure pulsation at the corresponding frequency can be weakened through the arrangement of the two expansion chambers 441, so that the silencing structure has high transmission loss in a wider frequency range.

In specific implementation, as shown in fig. 9, the rotor assembly 4 drives the crankshaft 10 to rotate to pump the refrigerant 14 from the lower part of the housing assembly 3 to the top of the crankshaft 10, and then the refrigerant is thrown to the inner wall of the housing assembly 3 under the action of the centrifugal force of the rotor assembly 4, and then flows down to the lower part of the housing assembly 3 along the inner wall of the housing assembly 3 to form a closed oil path. In the existing muffler side discharge scheme, high-pressure refrigerant discharged by a side exhaust port 9 directly acts on the inner wall of a shell assembly 3 to prevent the backflow of frozen oil, so that the oil is lacked in a compressor, the power of the compressor is increased, the energy efficiency is reduced, and in the existing upper discharge scheme, high-pressure refrigerant discharged by an upper exhaust port 8 directly acts on a rotor assembly 4, so that the rotor runs unstably, and electromagnetic noise is generated. The silencing structure of the application designs the outlet on the side surface of the first flange 20, and the discharged high-pressure refrigerant directly acts on the skirt 24 of the first flange, so that the backflow of the refrigerating oil in the compressor is not influenced, the rotor assembly is not impacted to cause unstable operation of the rotor assembly to generate electromagnetic noise, the compressor efficiency can be effectively improved, and the noise of the compressor is reduced.

In this embodiment, the compressor pump body also includes rollers 12 and screws 13.

The application reasonably designs the silencing structure under the condition of limited space, controls the exhaust pressure pulsation, does not introduce other noise, ensures the energy efficiency and improves the performance of the compressor and the air conditioner.

The application has the beneficial effects that 1, the refrigerant passes through the first throttling channel 43 and then passes through the second throttling channel 44, the transmission losses of the first throttling channel 43 and the second throttling channel 44 are mutually complemented, so that the silencing structure 40 has high transmission loss in a wider frequency range, 2, the outlet position of the silencing structure 40 is optimized, the problems of electromagnetic noise and compressor oil return blocking caused by exhaust impact force and pressure pulsation are solved, and the quality and energy efficiency of the compressor and the air conditioner are improved.

The present invention further includes a compressor, please refer to fig. 8 and 9, including a compressor pump body 6, wherein the compressor pump body 6 is the compressor pump body in the above embodiment.

Specifically, the compressor further comprises a dispenser part 1, an upper cover assembly 2, a housing assembly 3, a rotor assembly 4, a stator assembly 5, and a lower cover 7.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be capable of being practiced otherwise than as specifically illustrated and described. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor pump body, characterized in that it comprises a crankshaft (10), a first flange (20) and a cylinder (30), wherein the first flange (20) and the cylinder (30) are both sleeved on the crankshaft (10), and the first flange (20) is located above the cylinder (30); an exhaust port (23) is provided on the first flange (20); the compressor pump body further comprises:

A silencer structure (40), comprising a shell (41) and a silencer structure outlet (42), wherein the shell (41) is covered on the first flange (20) and forms a first throttling channel (43) with the first flange (20), and the exhaust port (23) is in communication with the first throttling channel (43);

A second throttling channel (44) is formed between the first flange (20) and the cylinder (30), the second throttling channel (44) having an expansion chamber (441), and the second throttling channel (44) is connected to the first throttling channel (43), so that the refrigerant discharged from the exhaust port (23) passes through the first throttling channel (43) and the second throttling channel (44) in sequence and is then discharged from the silencer structure outlet (42);

The sound-absorbing structure outlet (42) is arranged on the side wall of the first flange (20), and the sound-absorbing structure outlet (42) is arranged opposite to the skirt (24) of the first flange (20);

The first flange (20) has a first end face (21) and a second end face (22) which are arranged opposite to each other, and the first end face (21) is located above the second end face (22); a fourth recessed portion (25) is provided on the first flange (20), and the fourth recessed portion (25) forms a connecting port (47) and the silencer structure outlet (42), and the connecting port (47) is connected to the silencer structure outlet (42); the connecting port (47) is located on the second end face (22), and the connecting port (47) is connected to the second throttling channel (44).

2. The compressor pump body according to claim 1, characterized in that the second throttling channel (44) comprises a first communicating channel (442), one end of the first communicating channel (442) is connected to the first throttling channel (43), and the other end of the first communicating channel (442) is connected to the expansion chamber (441);

The flow cross-sectional area of the first connecting channel (442) is smaller than the flow cross-sectional area of the expansion chamber (441).

3. The compressor pump body according to claim 2, characterized in that the second throttling channel (44) comprises at least two expansion chambers (441), the at least two expansion chambers (441) are arranged at intervals, and two adjacent expansion chambers (441) are connected through a second connecting channel (443);

The flow cross-sectional area of the second connecting channel (443) is smaller than the flow cross-sectional area of the expansion chamber (441).

4. The compressor pump body according to claim 3, characterized in that the first flange (20) has a first end face (21) and a second end face (22) arranged opposite to each other, and the first end face (21) is located above the second end face (22); the cylinder (30) is provided with a first recessed portion (31), a second recessed portion (32) and a third recessed portion (33), the first recessed portion (31) and the second end face (22) form the expansion chamber (441), the second recessed portion (32) and the second end face (22) form the first connecting channel (442), and the third recessed portion (33) and the second end face (22) form the second connecting channel (443).

5. The compressor pump body according to claim 2, characterized in that the first flange (20) has a first end face (21) and a second end face (22) arranged opposite to each other, and the first end face (21) is located above the second end face (22); the outer shell (41) is covered on the first end face (21); the exhaust port (23) is located on the first end face (21), and the outer shell (41) is covered on the exhaust port (23).

6. The compressor pump body according to claim 5, characterized in that the silencer structure (40) has a first throttling channel outlet (45) connected to the first throttling channel (43) and a second throttling channel inlet (46) connected to the first connecting channel (442), the first throttling channel outlet (45) is arranged on the first end surface (21), the second throttling channel inlet (46) is arranged on the second end surface (22), and the first throttling channel outlet (45) and the second throttling channel inlet (46) are connected.

7. The compressor pump body according to any one of claims 1 to 6, characterized in that the first flange (20) is an upper flange of the compressor pump body, the compressor pump body further comprises a lower flange (50), the lower flange (50) is arranged below the upper flange, and the cylinder (30) is arranged between the upper flange and the lower flange (50).

8. A compressor, comprising a compressor pump body (6), characterized in that the compressor pump body (6) is the compressor pump body according to any one of claims 1 to 7.