CN214787911U - Cylinder head, compressor and refrigeration plant - Google Patents

Abstract

The application provides a cylinder head, a compressor and refrigeration equipment. The cylinder cover comprises a cylinder cover body which is adapted to the crankcase, a first high-pressure cavity is arranged in the cylinder cover body, the cylinder cover also comprises a side shell, a second high-pressure cavity is arranged in the side shell, and the first high-pressure cavity is communicated with the second high-pressure cavity; the side shell and the cylinder cover body are of an integrally formed structure. According to the cylinder cover, the second high-pressure cavity communicated with the first high-pressure cavity is arranged on the side edge of the cylinder cover body, so that the second high-pressure cavity forms a silencing cavity, and the vibration reduction and silencing effects are improved; and because the second high-pressure chamber is located the side of cylinder head body, its size setting can not receive the restriction of crankcase, therefore can make the volume of second high-pressure chamber great to further promote noise cancelling effect. And need not additionally to set up the amortization chamber on the crankcase again, so can simplify the structure of crankcase to conveniently process the crankcase, and then reduce the processing cost of crankcase.

Description

Cylinder head, compressor and refrigeration plant

Technical Field

The application belongs to the technical field of compressors, and particularly relates to a cylinder cover, a compressor and refrigeration equipment.

Background

A compressor is used in a refrigeration apparatus such as a refrigerator. With the increasingly obvious requirements of people on low noise, silence and the like of household appliances, the requirement on the noise of the compressor during working is lower and lower.

The compressor generally includes a crankcase and a cylinder head covering the crankcase. Referring to fig. 1 and 2, the structure of the present compressor is generally: a cushion chamber 911 is provided in the cylinder head 910, a sound-deadening chamber 921 and an overflowing hole 922 are provided in the crankcase 920, and the overflowing hole 922 communicates the cushion chamber 911 with the sound-deadening chamber 921. When high-pressure refrigerant in the crankcase enters the cylinder head 910, the high-pressure refrigerant enters the buffer cavity 911 through the valve plate, enters the silencing cavity 921 through the flow hole 922, and enters the tank system through the exhaust pipe. However, the structure of the crankcase of the compressor is complex, the processing cost is high, the structure of the crankcase is limited, the volume of the silencing cavity is small, and the noise improvement effect is not obvious.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a cylinder head, compressor and refrigeration plant to set up the amortization chamber on the crankcase of compressor among the solution prior art and lead to the crankcase structure complicated, and the amortization chamber volume is less, the obscure problem of noise improvement effect.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: providing a cylinder cover, which comprises a cover body adapted to a crankcase, wherein a first high-pressure cavity communicated with the crankcase is arranged in the cover body, the cylinder cover further comprises a side shell connected to the side edge of the cover body, a second high-pressure cavity is arranged in the side shell, and the first high-pressure cavity is communicated with the second high-pressure cavity; the side shell and the cylinder cover body are of an integrally formed structure.

In an optional embodiment, a partition plate is arranged between the first high-pressure cavity and the second high-pressure cavity, and an overflowing hole communicating the first high-pressure cavity with the second high-pressure cavity is formed in the partition plate.

In an alternative embodiment, the cylinder head body has a first end for connecting the crankcase and a second end opposite to the first end, and the side shell extends from the second end to the first end on the side of the cylinder head body.

In an alternative embodiment, the cylinder head body has a second end opposite the first end, and the side housing has a corner portion connected to the second end of the cylinder head body, the corner portion being rounded or square.

In an alternative embodiment, the end surface of the second end of the cylinder head body is a circular arc surface.

In an alternative embodiment, the side casing is provided with an opening communicating with the second high pressure chamber.

In an alternative embodiment, a flange plate is provided on the side casing around the opening.

In an alternative embodiment, the opening is located at an end of the side housing remote from the cylinder head body.

In an optional embodiment, the cylinder head further includes a closing plate covering the opening, and the closing plate is provided with an opening communicating with the second high-pressure chamber.

In an alternative embodiment, the lateral casing has a cross-sectional profile in the shape of a circular ring, a polygon, or an ellipse.

It is another object of an embodiment of the present application to provide a compressor including a crankcase and a cylinder head including any one of the embodiments described above, wherein the cylinder head body is connected to the crankcase.

It is a further object of this embodiment of this application to provide a refrigeration apparatus including a compressor as described in any of the above embodiments.

The beneficial effect of the cylinder head that this application embodiment provided lies in: compared with the prior art, the cylinder cover has the advantages that the first high-pressure cavity is arranged in the cylinder cover body to buffer high-pressure gas entering from the crankcase, so that the effects of vibration reduction and noise reduction are achieved; in addition, the second high-pressure cavity communicated with the first high-pressure cavity is arranged on the side edge of the cylinder cover body, so that the second high-pressure cavity forms a silencing cavity, and the vibration reduction and silencing effects are improved; and because the second high-pressure chamber is located the side of cylinder head body, its size setting can not receive the restriction of crankcase, therefore can make the volume of second high-pressure chamber great to further promote noise cancelling effect. And, owing to be provided with the second high-pressure chamber that can effectively promote damping and noise cancelling effect in the cover body, just also need not additionally to set up the amortization chamber again on the crankcase, so can simplify the structure of crankcase to conveniently process the crankcase, and then reduce the processing cost of crankcase.

The beneficial effect of the compressor that this application embodiment provided lies in: compared with the prior art, the compressor of the application uses the cylinder cover of the embodiment, and the processing cost of the crankcase is reduced, so that the processing cost of the compressor is reduced, and the noise is low during operation.

The refrigeration equipment provided by the embodiment of the application has the beneficial effects that: compared with the prior art, the refrigeration equipment of the application uses the compressor of the embodiment, has the technical effects of the compressor, and is not repeated herein.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of a cylinder head and crankcase combination of a prior art elevated compressor;

FIG. 2 is a cross-sectional schematic view of the cylinder head and crankcase of FIG. 1 in combination;

FIG. 3 is a schematic perspective view of a cylinder head according to an embodiment of the present disclosure;

FIG. 4 is a cross-sectional structural view of the cylinder head shown in FIG. 3;

FIG. 5 is a cross-sectional structural view of a side casing of the cylinder head shown in FIG. 3;

FIG. 6 is a cross-sectional structural view of a side shell of a cylinder head provided in accordance with yet another embodiment of the present application;

FIG. 7 is a cross-sectional structural view of a side shell of a cylinder head provided in accordance with yet another embodiment of the present application;

FIG. 8 is a schematic perspective view of a cylinder head according to yet another embodiment of the present application;

FIG. 9 is a cross-sectional structural schematic view of a cylinder head provided in accordance with yet another embodiment of the present application;

FIG. 10 is a cross-sectional structural view of a cylinder head provided in accordance with yet another embodiment of the present application;

FIG. 11 is a cross-sectional structural view of a cylinder head provided in accordance with yet another embodiment of the present application;

FIG. 12 is a schematic perspective view of a cylinder head according to yet another embodiment of the present application;

fig. 13 is a schematic cross-sectional view of a cylinder head according to yet another embodiment of the present disclosure.

Wherein, in the drawings, the reference numerals are mainly as follows:

10-a cylinder head;

11-a cylinder cover body; 111-a first high pressure chamber; 112-a separator; 113-an overflow aperture; 114-a first end;

a 12-side housing; 121-a second high pressure chamber; 122-corner section; 123-opening; 124-flange plate;

14-closing the plate; 141-opening the pores.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Reference throughout this specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 3 and 4, the cylinder head 10 provided in the present application will now be described. The cylinder head 10 includes a head body 11 and a side housing 12. The side housing 12 is mounted to a side of the cylinder head body 11. In use, the cylinder head body 11 is connected to the crankcase to cover the cylinder head body 11 on the crankcase.

The first high pressure chamber 111 is arranged in the cylinder cover 11, so that when the cylinder cover is used, high-pressure gas in the crankcase enters the first high pressure chamber 111 to play a role of buffering, so that vibration and noise are reduced, and further, running noise of a compressor using the cylinder cover 11 can be reduced.

A second high-pressure cavity 121 is arranged in the side shell 12, the second high-pressure cavity 121 is communicated with the first high-pressure cavity 111, high-pressure gas in the first high-pressure cavity 111 enters the second high-pressure cavity 121, the volume of the second high-pressure cavity is enlarged to play a role in buffering, so that the second high-pressure cavity 121 forms a sound-deadening cavity to play a role in vibration reduction, sound deadening and noise reduction.

The side shell 12 is arranged on the side edge of the cylinder cover body 11, and the volume of the side shell 12 is not limited by the structures of the crankcase and the cylinder cover body 11, so that the volume of the side shell 12 can be made larger, and the volume of the second high-pressure cavity 121 can be made smaller, so that the effects of noise reduction and noise reduction are improved. In addition, a silencing cavity is not required to be arranged on the crankcase, the structure of the crankcase can be simplified, the processing and the manufacturing of the crankcase are facilitated, the manufacturing and forming of the crankcase are reduced, and the cost of the manufactured compressor can be reduced.

Compared with the prior art, the cylinder head 10 provided by the application has the advantages that the first high-pressure cavity 111 is arranged in the cylinder head body 11 to buffer high-pressure gas entering from a crankcase, so that the vibration reduction and noise reduction effects are achieved; moreover, the second high-pressure cavity 121 communicated with the first high-pressure cavity 111 is arranged on the side edge of the cylinder cover body 11, so that the second high-pressure cavity 121 forms a sound-deadening cavity to improve the vibration reduction and sound-deadening effects; and because the second high-pressure chamber 121 is located at the side of the cylinder head 11, the size of the second high-pressure chamber 121 is not limited by the crankcase, so that the volume of the second high-pressure chamber 121 can be made larger to further improve the noise reduction effect. And, because be provided with the second high-pressure chamber 121 that can effectively promote damping and noise cancelling effect in the cover body 11, just also need not additionally to set up the noise cancelling chamber again on the crankcase, so can simplify the structure of crankcase to conveniently process the crankcase, and then reduce the processing cost of crankcase.

In one embodiment, referring to fig. 3 and 4, the side housing 12 and the cylinder head 11 are integrally formed, that is, the cylinder head 10 is integrally formed, so as to facilitate manufacturing, ensure the connection strength between the side housing 12 and the cylinder head 11, facilitate assembly, and reduce assembly processes. It will be appreciated that the side housing 12 and the cylinder head 11 may be separately machined and then the side housing 12 and the cylinder head 11 may be fixedly attached.

In one embodiment, a partition plate 112 is disposed between the first high pressure chamber 111 and the second high pressure chamber 121, a through hole 113 is formed in the partition plate 112, and the through hole 113 is a through hole structure to communicate the first high pressure chamber 111 with the second high pressure chamber 121, so that when the gas in the first high pressure chamber 111 enters the second high pressure chamber 121, the volume of the gas is rapidly increased, and the sound absorption effect is better achieved.

In one embodiment, when the cylinder head 10 is a one-piece structure, the partition 112 may be a side wall of the head body 11, that is, the partition 112 is integrally formed with the head body 11 and the side housing 12 for easy manufacturing.

It is understood that when the side housing 12 and the cylinder head 11 can be separately formed, the partition 112 can be a side wall of the cylinder head 11, and the end of the side housing 12 close to the cylinder head 11 can be provided with an opening, and after the side housing 12 is fixed to the cylinder head 11, the through-flow hole 113 is formed in the partition 112, so that the first high-pressure chamber 111 and the second high-pressure chamber 121 can be communicated. Of course, when the side housing 12 and the cylinder head 11 can be separately machined, the partition plate 112 can be a side wall of the side housing 12, and the end of the cylinder head 11 close to the side housing 12 can be provided with an open end, after the side housing 12 is fixed to the cylinder head 11, the partition plate 112 is covered on the cylinder head 11, and the through-flow hole 113 is formed in the partition plate 112, so that the first high-pressure chamber 111 and the second high-pressure chamber 121 can be communicated. Further, when the side housing 12 and the head cover 11 can be separately machined, the partition plates 112 may be provided on the side housing 12 and the head cover 11, respectively, and when the side housing 12 and the head cover 11 are connected, the through-flow holes 113 in the two partition plates 112 may be communicated, or the first high-pressure chamber 111 and the second high-pressure chamber 121 may be communicated.

For convenience of description, three directions which are spatially perpendicular to each other are defined, namely, a front-back direction, a left-right direction, and an up-down direction. The front-rear direction, the left-right direction, and the up-down direction are only for the drawings, as reference can be made to fig. 3, 8, and 12 for convenience of description, are not limited to the specific front-rear, left-right, and up-down of the cylinder head 10, nor are they to be construed as limiting the front, rear, left, right, up, and down orientations of the cylinder head 10.

In one embodiment, the cylinder head 11 has a first end 114 and a second end, the first end 114 and the second end are opposite to each other, and when assembled, the first end 114 of the cylinder head 11 is connected to the crankcase. Referring to fig. 3, the front end of the cylinder cover 11 is the first end 114 of the cylinder cover 11. The side shell 12 is located at a side edge of the cylinder cover 11, and the side shell 12 extends from the second end to the first end 114 to form the first end 114, referring to fig. 3, the side shell 12 extends from the side edge of the cylinder cover 11 to the front side, so that the side shell 12 extends out of the first end 114 of the cylinder cover 11, and the cylinder head 10 forms an L-like structure as a whole, so that after the cylinder cover 11 is mounted on the crankcase, the side shell 12 extends to one side of the crankcase, which can improve the integration level, improve the space utilization rate, reduce the occupied space, and further reduce the volume of the manufactured compressor.

In one embodiment, the side housing 12 may be disposed on the right side of the cylinder head body 11. It is to be understood that the side housing 12 may be provided on the left side of the cylinder head body 11.

In one embodiment, referring to fig. 3 and 4, the front end of the first end 114 of the cylinder cover 11 is the first end 114 of the cylinder cover 11, and the rear end of the cylinder cover 11 is the second end of the cylinder cover 11. The portion of the side housing 12 that is connected to the first end 114 of the cylinder head 11 is a corner 122, i.e., the side housing 12 has a corner 122, and the corner 122 is connected to the second end of the cylinder head 11. A corner 122 is provided to facilitate the connection of the side housing 12 to the head body 11 and to facilitate the fabrication of the cylinder head 10 into an L-like structure.

In one embodiment, the corner 122 is rounded to provide a smooth transition between the connection of the side housing 12 and the cylinder head 11 for ease of manufacturing. In addition, the occupied space of the side shell 12 can be reduced, the side shell is better adapted to be applied to a compressor with a cylindrical shell, the space utilization rate is improved, and the volume for manufacturing the compressor is reduced.

In an embodiment, the end surface of the second end of the cylinder cover 11 is a circular arc surface, so that the cylinder cover 10 can be better adapted to be applied to a compressor with a cylindrical shell, and the end surface of the second end of the cylinder cover 11 is adapted to the shell of the compressor, thereby improving the space utilization rate and reducing the volume of the compressor. Of course, the end surface of the second end of the cylinder head 11 may be provided in a planar shape to facilitate the manufacturing process.

In one embodiment, the opening 123 is formed in the side casing 12, and the opening 123 is communicated with the second high pressure chamber 121, so that the second high pressure chamber 121 on the side casing 12 can be conveniently machined and manufactured in use. In addition, the opening 123 can be conveniently formed using a plate member.

In one embodiment, a flange plate 124 is provided on the side casing 12, and the flange plate 124 is disposed around the opening 123, so that it is convenient to install a plate member to cover the opening 123.

In one embodiment, when the cylinder head 10 is L-shaped, the opening 123 may be disposed at a front side end of the side casing 12, that is, the opening 123 is disposed at an end of the side casing 12 away from the cylinder head 11, which not only facilitates manufacturing, but also facilitates a plate covering the opening 123 to be located at a side of the crankcase after the cylinder head 11 is mounted on the crankcase, so as to better utilize a space in a housing of the compressor and improve space utilization. Of course, the opening 123 may be provided on the side of the side casing 12, such as on the right, left, upper, or lower side of the side casing 12.

In one embodiment, referring to fig. 5, the outer contour of the cross section of the side casing 12 is rectangular to facilitate design and manufacturing, and the volume of the second high pressure chamber 121 can be made larger for a certain length of the side casing 12. Of course, in one embodiment, referring to fig. 6, the outer contour of the cross-section of side housing 12 may also be configured to be circular. In still other embodiments, referring to FIG. 7, the outer contour of the cross-section of side shell 12 may also be triangular. The shape of the outer corridor of the cross section of the side shell 12 can be designed according to requirements, for example, the outer corridor of the cross section of the side shell 12 can be set to be polygonal, oval and the like; the second high pressure chamber 121 can be arranged in other shapes according to the shape of the applied compressor housing, so as to increase the volume of the second high pressure chamber and improve the noise reduction effect.

In one embodiment, referring to fig. 8, the side housing 12 is disposed on the side of the cylinder head body 11. Referring to fig. 3 and 4, the volume of the side casing 12 and thus the volume of the second high pressure chamber 121 can be adjusted according to the requirement and the volume of the applied compressor casing, so as to make the second high pressure chamber 121 larger in a limited space and improve the silencing effect. In this embodiment, the side casing 12 is thicker in the vertical direction to increase the volume of the side casing 12, and further increase the volume of the second high-pressure chamber 121, so as to improve the sound attenuation effect.

In one embodiment, referring to fig. 9, side shell 12 has a corner 122, and corner 122 is right-angled to facilitate space utilization in a compressor having a rectangular parallelepiped shell. It is to be understood that the shape of the corner 122 of the side casing 12 may be designed and manufactured as required, and is not limited to a specific shape.

In one embodiment, referring to fig. 10, the side housing 12 extends from a side of the cylinder head 11 away from a side of the cylinder head 11 on which the side housing 12 is located. For example, assuming that the side housing 12 is located on the right side in the left-right direction of the head cover 11, the side housing 12 is extended in the left-right direction from the head cover 11 to the right side, so that the cylinder head 10 can be provided relatively long. With the structure, the side shell 12 can extend out of the shell of the compressor to facilitate the connection of an external silencing component, and the side shell 12 and the second high-pressure cavity 121 can be made to be large to improve the silencing effect.

In the above embodiment, referring to fig. 10, the opening 123 of the side housing 12 may be disposed at an end away from the cylinder head 11, that is, the opening 123 may be disposed on a right end face of the side housing 12, so as to facilitate processing. It should be understood that, referring to fig. 11, the opening 123 may also be disposed at a side of the end of the side casing 12 away from the cylinder cover 11, for example, the opening 123 is disposed at a front side of the end away from the cylinder cover 11, so that the opening 123 on the side casing 12 and the end of the cylinder cover 11 connected to the crankcase may be located at the same side, and after the cylinder cover 11 is mounted on the crankcase, the sound-deadening assembly connected to the opening 123 may extend toward the crankcase, so as to improve the space utilization and reduce the volume of the compressor.

In one embodiment, referring to FIG. 12, side housing 12 may be disposed on the upper side of cylinder head 11 such that, in use, side housing 12 utilizes the axial space of the compressor housing. The structure can better utilize the space in the compressor for the compressor with larger axial length and improve the space utilization rate.

In one embodiment, referring to fig. 13, the cylinder head 10 further includes a closing plate 14, the closing plate 14 covers the opening 123 of the side casing 12, and the closing plate 14 is provided with an opening 141, the opening 141 is communicated with the second high-pressure chamber 121, so that the second high-pressure chamber 121 can be conveniently communicated with an external noise reduction assembly through a pipe.

The cylinder cover 10 of the embodiment of the application can play a good noise reduction effect after being applied to the compressor, can improve the space utilization rate of the compressor, is smaller in compressor manufacturing, can simplify the structure of a compressed crankcase, and reduces the manufacturing cost.

The embodiment of the application also discloses a compressor, which comprises a crankcase and the cylinder cover as described in any one of the above embodiments, wherein the cylinder cover body is connected with the crankcase. The compressor uses the cylinder cover of the embodiment, reduces the processing cost of the crankcase, thereby reducing the processing cost of the compressor, and has low noise during operation, and the technical effect of the cylinder cover of the embodiment is not repeated.

The embodiment of the application also discloses a refrigerating device which comprises the compressor in the embodiment. This refrigeration plant has used the compressor of above-mentioned embodiment, and the amortization is little, and is with low costs, and has the technological effect of above-mentioned compressor, and no longer gives details here.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (12)

1. A cylinder head comprising a head body adapted to a crankcase, the head body having a first high-pressure chamber therein that communicates with the crankcase, the cylinder head comprising: the cylinder cover further comprises a side shell connected to the side edge of the cylinder cover body, a second high-pressure cavity is arranged in the side shell, and the first high-pressure cavity is communicated with the second high-pressure cavity; the side shell and the cylinder cover body are of an integrally formed structure.

2. The cylinder head of claim 1, wherein: a partition plate is arranged between the first high-pressure cavity and the second high-pressure cavity, and an overflowing hole communicated with the first high-pressure cavity and the second high-pressure cavity is formed in the partition plate.

3. The cylinder head of claim 1, wherein: the cylinder cover body is provided with a first end used for connecting the crankcase and a second end opposite to the first end, and the side shell extends from the second end to the first end on the side edge of the cylinder cover body.

4. The cylinder head of claim 3, wherein: the side housing has a corner portion connected to the second end of the cylinder head body, the corner portion being arc-shaped or right-angled.

5. The cylinder head of claim 3, wherein: the end surface of the second end of the cylinder cover body is an arc surface.

6. The cylinder head according to any one of claims 1 to 5, wherein: and an opening for discharging high-pressure gas is formed in the second high-pressure cavity.

7. The cylinder head of claim 6, wherein: and a flange plate surrounding the opening is arranged on the side shell.

8. The cylinder head of claim 6, wherein: the opening is located at an end of the side housing remote from the cylinder head body.

9. The cylinder head of claim 6, wherein: the cylinder cover further comprises a sealing plate covering the opening, and an opening communicated with the second high-pressure cavity is formed in the sealing plate.

10. The cylinder head according to any one of claims 1 to 5, wherein: the outline of the cross section of the side shell is circular, polygonal or elliptical.

11. A compressor comprising a crankcase, characterized in that: the compressor further comprising a cylinder head according to any one of claims 1-10, the head body being connected to the crankcase.

12. A refrigeration apparatus, characterized by: comprising a compressor as claimed in claim 11.

Images