CN219220729U - Valve adapter, non-orbiting scroll assembly, scroll compression mechanism and scroll compressor - Google Patents

Abstract

The application provides a valve adapter, a non-orbiting scroll assembly, a scroll compression mechanism and a scroll compressor. The valve adapter is adapted to be attached to a non-orbiting scroll of a scroll compression mechanism of a scroll compressor, with first and second fluid passages provided on end plates of the non-orbiting scroll for different purposes. The valve adapter includes: a body; a first passageway disposed in the body and having a first inlet adjacent to and in communication with the first fluid passage; and a second passageway disposed in the body and having a second inlet adjacent to and in communication with the second fluid passageway. The first passage and the second passage are controlled by valves to open or close. Through the valve adapter of the application, the valve for the fluid channel of different purposes can be installed in a limited space, and the problem of installation interference of the valve can be effectively avoided.

Description

Valve adapter, non-orbiting scroll assembly, scroll compression mechanism and scroll compressor

Technical Field

The utility model relates to the technical field of scroll compressors, in particular to an adapter for mounting a valve, a non-orbiting scroll assembly comprising the adapter, a scroll compression mechanism and a scroll compressor.

Background

This section provides background information related to the present disclosure, which is not necessarily prior art.

Scroll compressors include a scroll compression mechanism having a fixed scroll and an orbiting scroll. The wraps of the fixed and orbiting scrolls engage each other to define a series of chambers. In order to improve efficiency of the compressor, a discharge valve for controlling on-off of a discharge passage is provided at a discharge passage of the non-orbiting scroll for discharging compressed working fluid. Further, to provide variable capacity, one or more bypass passages and a bypass valve for controlling the bypass passages may be provided on the non-orbiting scroll.

Disclosure of Invention

Technical problem

In addition to the various valves described above, various other structures are provided on the fixed scroll end plate. However, the valves are typically provided at the corresponding fluid passages, i.e. the mounting positions of the valves are limited to the fluid passages. Therefore, the space on the non-orbiting scroll end plate for mounting the valve tends to be limited. In particular, in the case where a hub portion extending toward the head cover (i.e., away from the wrap) is provided on the non-orbiting scroll, it is not easy to mount both the discharge valve and the plurality of bypass valves in the hub portion, because this tends to cause the discharge valve and the bypass valves to interfere with each other.

In view of the above, the present application proposes an adapter for mounting a valve, in which a passage communicating with fluid passages of different uses of a non-orbiting scroll (e.g., a discharge passage discharging compressed fluid of a discharge chamber, a bypass passage discharging fluid in a compression chamber in advance, a fluid passage introducing fluid into a compression chamber, etc.) may be provided to change the outlet position or number of the entire flow path, thereby changing the mounting position and/or number of the valve to be suitable for a limited mounting space.

Technical proposal

According to one aspect of the present disclosure, a valve adapter is provided. The valve adapter is adapted to be attached to a non-orbiting scroll of a scroll compression mechanism of a scroll compressor, with first and second fluid passages provided on end plates of the non-orbiting scroll for different purposes. The valve adapter includes: a body; a first passageway disposed in the body and having a first inlet adjacent to and in communication with the first fluid passage; and a second passageway disposed in the body and having a second inlet adjacent to and in communication with the second fluid passageway. The first passage and the second passage are controlled by valves to open or close.

In some embodiments, the first passageway has a first outlet and the second passageway has a second outlet. The valve includes a first valve and a second valve. The first and second outlets are controlled to be opened or closed by the first and second valves, respectively.

In some embodiments, the body has a first mounting surface for mounting the first valve and a second mounting surface for mounting the second valve. The first outlet is disposed in the first mounting surface and the second outlet is disposed in the second mounting surface.

In some embodiments, the first mounting surface and the second mounting surface have different orientations and/or are located at different levels.

In some embodiments, the first inlet opens into the first fluid passage communicating with a discharge chamber of the scroll compression mechanism and the second inlet opens into the second fluid passage communicating with a compression chamber of the scroll compression mechanism. The second outlet is located radially outward of the first outlet.

In some embodiments, the body is plate-shaped and has first and second surfaces opposite each other. The first surface includes the first mounting surface and the second mounting surface. The first inlet and the second inlet are disposed in the second surface.

In some embodiments, the valve adapter comprises a plurality of the second passages, the second outlets of the plurality of second passages being arranged in a circumferential direction; and/or the valve adapter comprises a plurality of the first passages.

In some embodiments, a single second passage is provided for the same compression chamber and is configured to communicate with a plurality of bypass passages provided for the same compression chamber.

In some embodiments, the second inlet of the single second passage disposed for the same compression chamber covers and communicates with the outlets of the plurality of bypass passages.

In some embodiments, a single second passage is provided for different compression chambers having the same pressure, and the second passage includes a connection passage that communicates bypass passages of the different compression chambers.

According to another aspect of the present disclosure, there is provided a non-orbiting scroll assembly comprising a valve, a non-orbiting scroll and a valve adaptor as described above. The valve is attached to the valve adapter and the valve adapter is attached to the non-orbiting scroll such that the first passageway communicates with the first fluid passage and the second passageway communicates with the second fluid passage. The first fluid channel and the second fluid channel are used for different purposes selected from the group consisting of: for discharging working fluid from the discharge chamber of the scroll compression mechanism, for bypassing or prematurely discharging working fluid from the compression chamber, and for introducing external working fluid into the compression chamber.

In some embodiments, the valve adapter is attached to the end plate of the non-orbiting scroll such that the first passageway communicates with a discharge chamber of the scroll compression mechanism and the second passageway communicates with a compression chamber of the scroll compression mechanism. The valve includes a first valve for controlling opening or closing of the first passage and a second valve for controlling opening or closing of the second passage.

In some embodiments, the non-orbiting scroll includes a hub extending axially on a side of the end plate opposite the wrap of the non-orbiting scroll, the valve adapter being located inboard of the hub.

According to yet another aspect of the present disclosure, there is provided a scroll compression mechanism comprising a non-orbiting scroll assembly as described above.

According to yet another aspect of the present disclosure, there is provided a scroll compressor comprising the scroll compression mechanism as described above.

Technical effects

Through the valve adapter of the application, the valve for the fluid channel of different purposes can be installed in a limited space, and the problem of installation interference of the valve can be effectively avoided. In other words, the installation space of the valves of the various fluid passages can be reduced or the setting or installation of the valves can be optimized by the valve adapter.

The valve adapter may have integrated therein a first passageway in communication with the discharge chamber and a second passageway in communication with the compression chamber. Further, such a valve adapter can be installed in a limited space inside the non-orbiting scroll hub without causing the discharge valve and the bypass valve to interfere with each other.

The valve adapter has stepped first and second mounting surfaces which facilitate manufacture and assembly.

Further areas of applicability will become apparent from the description provided herein. It should be understood that the particular examples and embodiments described in this section are for illustrative purposes only and are not intended to limit the scope of the present disclosure.

Drawings

The features and advantages of one or more embodiments of the present disclosure will become more readily apparent from the following description with reference to the accompanying drawings, in which:

FIG. 1 is an exploded schematic view of a scroll compressor according to an embodiment of the present disclosure;

FIG. 2 is a schematic perspective view of a non-orbiting scroll assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic top view of the non-orbiting scroll assembly of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the non-orbiting scroll assembly of FIG. 2;

FIG. 5 is a top schematic view of the non-orbiting scroll assembly of FIG. 2;

FIG. 6 is a schematic view of a valve adapter and valve of the non-orbiting scroll assembly of FIG. 2;

FIG. 7 is a top perspective view of an adapter according to an embodiment of the present disclosure;

FIG. 8 is a bottom perspective view of the adapter of FIG. 7; and

fig. 9 is a bottom perspective view of a variation of the adapter shown in fig. 8.

Detailed Description

Exemplary embodiments of the present application will now be described more fully with reference to the accompanying drawings. It should be understood that throughout the drawings, identical reference numerals indicate similar or corresponding parts or features. Moreover, the figures are not necessarily to scale, and some portions may be shown exaggerated in scale for illustrative purposes.

The exemplary embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous specific details are set forth, such as examples of specific components, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to one skilled in the art that the exemplary embodiments may be embodied in many different forms without the use of specific details, and should not be construed as limiting the scope of the disclosure. In some exemplary embodiments, well-known processes, well-known device structures, and well-known techniques are not described in detail.

A scroll compressor 1 according to an embodiment of the present disclosure will be described below with reference to fig. 1.

As shown in fig. 1, the scroll compressor 1 includes: a housing defining an enclosed space by a top cover 2, a cylindrical housing 4, and a bottom cover (not shown); a partition plate 3 dividing the closed space into a low pressure chamber and a high pressure chamber; a fixed scroll 5; an orbiting scroll 6 engaged with the fixed scroll 5; a valve adaptor 7 attached to the fixed scroll 5; and a valve 8 mounted on the valve adapter 7.

The non-orbiting scroll 5, the valve adaptor 7 and the valve 8 constitute a non-orbiting scroll assembly 10a according to the present disclosure. The non-orbiting scroll assembly 10a and the orbiting scroll 6 constitute a scroll compression mechanism 10 according to the present disclosure.

An intake joint 9a for introducing a low-pressure and low-temperature working fluid (e.g., refrigerant) into the scroll compressor 1 is provided on the cylindrical housing 4, and a discharge joint 9b for discharging the compressed high-temperature and high-pressure working fluid out of the scroll compressor 1 is provided on the head cover 2.

When the scroll compressor 1 is operated, a low-temperature low-pressure working fluid enters the housing of the scroll compressor 1 through the intake joint 9a, specifically, into a low-pressure chamber defined by the partition plate 3, the cylindrical housing 4 and the bottom cover (not shown), is discharged into a high-pressure chamber defined by the top cover 2 and the partition plate 3 after being compressed by the scroll compression mechanism 10, and is discharged out of the scroll compressor 1 through the discharge joint 9b.

The wraps of the fixed scroll 5 and the orbiting scroll 6 can be engaged with each other to define a series of chambers along a wrap profile. These chambers include, in order along the wrap profile from radially outward to radially inward, a suction chamber in communication with a suction port (not shown) of the scroll compression mechanism 10, at least one closed compression chamber, and a discharge chamber in communication with a discharge passage (which may also be referred to as a "discharge port") 54 (see fig. 4 and 5) of the scroll compression mechanism 10. The orbiting scroll 6 is capable of orbiting with respect to the non-orbiting scroll 5 (i.e., the orbiting scroll does not orbit about its own central axis, but rather the central axis of the orbiting scroll orbits about the central axis of the non-orbiting scroll) to compress a working fluid.

When the scroll compressor 1 is operated, the scroll compression mechanism 10 sucks the working fluid in the low pressure chamber into the suction chamber via the suction port. As the orbiting scroll 6 orbits relative to the non-orbiting scroll 5, the working fluid follows the wrap profile, passes through the compression pockets and finally reaches the discharge pockets. The suction chamber, the compression chamber and the discharge chamber have a gradually decreasing volume, thereby achieving compression of the working fluid.

The non-orbiting scroll assembly 10a according to an embodiment of the present disclosure will be described with reference to fig. 2 to 6.

As shown in fig. 2 to 5, the fixed scroll 5 includes an end plate 51, a wrap 52 extending from one side of the end plate 51, and a hub 53 extending from the other side of the end plate 51. A discharge passage 54 communicating with the discharge chamber is provided in the end plate 51. As described above, the high-temperature and high-pressure working fluid in the discharge chamber can be discharged out of the scroll compression mechanism 10 via the discharge passage 54.

In order to increase the efficiency of the scroll compressor 1, a discharge valve 8a is provided to allow or prevent the working fluid from being discharged from the discharge chamber into the high pressure chamber via the discharge passage 54. The discharge valve 8a may be a check valve allowing only the working fluid to be discharged from the discharge chamber to the high-pressure chamber, and not allowing the working fluid to flow from the high-pressure chamber into the discharge chamber.

In the example shown in the drawings, the discharge valve 8a has an elongated body fixedly attached to the valve adapter 7 at one end thereof by a fastener such as a screw, and the other end thereof is located on the outlet of the corresponding passage (the passage communicating with the discharge passage 54) of the valve adapter 7. When the valve plate of the discharge valve 8a covers the outlet of the passage, the passage is blocked, and at this time, the working fluid is prevented from flowing through the passage. When the valve plate of the discharge valve 8a is lifted up by the working fluid having a specific pressure, the passage is opened, at which time the working fluid is allowed to flow through the passage.

In addition, at least one bypass passage 55 communicating with the compression chamber is provided in the end plate 51. By providing the bypass passage, the working fluid is allowed to be discharged in advance, whereby the cooling/heating capacity of the scroll compressor 1 can be changed. It should be appreciated that one or more bypass passages 55 may be provided for the same compression chamber. Further, bypass passages 55 may be provided for a plurality of different compression chambers, respectively, so as to discharge working fluid of a desired pressure as needed. For example, as shown in fig. 5, two bypass passages 55a and 55b are provided for each compression chamber.

Accordingly, a bypass valve 8b is provided to allow or prevent the working fluid from being discharged from the compression chamber into the high pressure chamber via the bypass passage 55. The bypass valve 8b may be a check valve allowing only the working fluid to be discharged from the compression chamber to the high pressure chamber, and not allowing the working fluid to flow from the high pressure chamber into the compression chamber. In the example shown, four bypass valves 8b are provided in total, wherein one bypass valve 8b is provided for the bypass channels 55a and 55b of the same compression chamber.

In the example shown in the drawings, the structure and the operation principle of the bypass valve 8b are similar to those of the discharge valve 8a, and thus are not described in detail herein.

The discharge valve 8a and the bypass valve 8b are attached to or mounted on the valve adaptor 7, and the on-off of the respective fluid passages on the fixed scroll 5 is controlled by controlling the on-off of the respective passages on the valve adaptor 7. The discharge valve 8a and the bypass valve 8b may be valves independent of each other. The end plate 51 of the fixed scroll 5 is provided with a recess 511 for placing the valve adaptor 7. The outer circumferential shape of the recess 511 matches the outer circumferential shape of the valve adapter 7, whereby the valve adapter 7 can also be positioned. The valve adapter 7 may be connected to the fixed scroll 5 by a fastener (not shown) such as a screw. Referring to fig. 5 and 6, fasteners may be inserted into holes 79 of the valve adapter 7 and engaged to mating holes (e.g., threaded holes) 59 on the end plate, thereby mounting the valve adapter 7 to the end plate 51. Various holes for attachment may be provided along the periphery. In the example shown in the figures, the valve adapter 7 and the valve 8 thereon are located within the hub 53 of the non-orbiting scroll 5. The valve adapter 7 can optimize or reduce the installation space of the valves and can effectively avoid the installation interference between the valves.

It should be understood that the scroll compressor, scroll compression mechanism, non-orbiting scroll, and individual valves according to the present disclosure should not be limited to the specific structures described herein and shown in the drawings, but may be varied as desired. For example, the scroll compressor may be a high-pressure side compressor (a motor driving an orbiting scroll via a rotation shaft is under discharge pressure) without a partition. For example, the non-orbiting scroll assembly may include any suitable number or type of fluid passages provided on the non-orbiting scroll and valves for controlling the opening and closing of the fluid passages. For example, the non-orbiting scroll may not have a hub. For example, the end plate of the fixed scroll may be a unitary structure as shown in the drawings, or may be a split structure. For example, the discharge valve and the bypass valve are not necessarily limited to the specific structures described herein and shown in the drawings, but may be changed as long as the functions thereof can be achieved.

A valve adapter 100 according to an embodiment of the present disclosure will be described below with reference to fig. 7 and 8. The discharge valve 8a and the bypass valve 8b as shown in fig. 1 to 6 may be mounted on the valve adapter 100. However, it should be understood that the valve adapter according to the present disclosure should not be limited to the discharge valve 8a and the bypass valve 8b shown in the drawings, but may be adapted to any other suitable valve as long as the functions described herein can be achieved.

As shown in fig. 7 and 8, the valve adapter 100 includes a body 110. In the example of the figures, the body 110 is generally plate-shaped and has a first surface 101 and a second surface 102 opposite to each other. In particular, the body 110 has a generally circular plate shape. This is related to the valve adaptor 100 being installed in the cylindrical hub 53 of the non-orbiting scroll 5. It should be understood that the shape of the body 110 may be designed according to the location and space where the valve adapter 100 is to be installed, and need not be limited to the specific examples shown in the figures.

A first passage 130 for communicating with a corresponding fluid passage is provided in the body 110. As in the example shown in fig. 2-5, the first passage 130 may be in communication with a discharge passage (which may also be referred to as a first fluid passage) 54 of the non-orbiting scroll 5. The first passage 130 has a first inlet 131 and a first outlet 132. The first inlet 131 is adjacent to and communicates with the discharge passage 54. A discharge valve (which may also be referred to as a first valve) 8a is provided at the first outlet 132 for opening or closing the first outlet 132, thereby allowing or preventing discharge of the working fluid of the discharge chamber of the scroll compression mechanism 10 via the discharge passage 54 and the first passage 130.

In the example shown in the drawings, the first passage 130 communicating with the discharge passage 54 may include two branches and the on-off of the first passage 130 is controlled by two valve portions accordingly. That is, the structure and/or size of the vias may be designed as desired. For example, as shown, ribs may be provided at the outlets 132, 152 for supporting the valve plate of the valve.

A second passage 150 for communicating with a corresponding fluid passage is provided in the body 110. As illustrated in the example of fig. 2-5, the second passage 150 may be in communication with a bypass passage (which may also be referred to as a second fluid passage) 55 of the non-orbiting scroll 5. The second passage 150 has a second inlet 151 and a second outlet 152. The second inlet 151 is adjacent to and communicates with the bypass passage 55. A bypass valve (which may also be referred to as a second valve) 8b is provided at the second outlet 152 for opening or closing the second outlet 152, thereby allowing or preventing discharge of the working fluid of the compression chamber of the scroll compression mechanism 10 via the bypass passage 55 and the second passage 150.

As described above, the fixed scroll 5 may be provided with a plurality of bypass passages 55. Referring to fig. 5, 8 bypass passages 55 are provided in total in the fixed scroll 5. Of these bypass passages 55, each two bypass passages 55a and 55b are provided for, i.e., communicate with, the same compression chamber. Accordingly, one second passage 150 and one bypass valve 8b may be provided for each compression chamber. In this case, the second passage 150 has a larger inlet 151 to cover the area of the two bypass passages 55a and 55b, i.e., a single inlet 151 may communicate with the two bypass passages 55a and 55b of the same compression chamber.

The first inlet 131 and the second inlet 151 may be provided on the same side of the plate-like body 110, i.e., in the second surface 102, as shown in fig. 8. The second surface 102 may be flat. In this way, the valve adapter 100 may be planarly mounted on the end plate 51 of the non-orbiting scroll 5 to facilitate, for example, sealing.

Typically, the discharge chambers are located at the approximate center of the scroll compression mechanism 10, while the compression chambers are located in pairs and symmetrically on either radial side of the discharge chambers. As such, the bypass passage 55 tends to be located radially outward of the discharge passage 54, and accordingly, the second inlet 151 in the valve converter 100 may be located radially outward of the first inlet 131. It will be appreciated that the location of the inlets 131, 151 of each passage 130, 150 in the valve switch 100 is dependent upon the location of the outlets of the fluid passages (e.g., the discharge passage 54 and the bypass passage 55) in the non-orbiting scroll 5 that communicate with the respective passages 130, 150.

However, the outlets 132, 152 of the respective passages 130, 150 in the valve switch 100 are not necessarily limited to the inlets 131, 151 of the respective passages 130, 150 and the outlets of the respective fluid passages in the non-orbiting scroll 5. The valve converter 100 according to the present disclosure may flexibly and conveniently design each passage, an outlet position of each passage, and/or a mounting position for mounting a valve as required according to a limited mounting space. Further, since the valve converter 100 is provided, no modification is required to the structure of the fixed scroll 5.

For example, in the example of fig. 2 to 5, a plurality of bypass valves 8b and discharge valves 8a will be provided inside the hub 53. If the plurality of bypass valves 8b and the discharge valve 8a are each directly mounted in the space of the end plate 51 inside the boss 53, a large mounting space is required. However, in the case where the space inside the boss portion 53 is insufficient, the plurality of bypass valves 8b and the discharge valve 8a interfere with each other. In this case, by using the valve converter 100 according to the present disclosure, the installation positions of the respective valves can be optimized, whereby interference between the valves can be avoided in a limited installation space.

In the example shown in fig. 7 and 8, the first outlet 132 and the second outlet 152 are located on the same side of the plate-like body 110, i.e. provided on the first surface 101 of the body 110. The mounting of the discharge valve 8a and the bypass valve 8b may be optimized by changing the shape, size and/or position of the first outlet 132 and the second outlet 152.

The first surface 101 of the body 110 may include a first mounting surface 111 for mounting the drain valve (which may also be referred to as a first valve) 8a and a second mounting surface 112 for mounting the bypass valve (which may also be referred to as a second valve) 8b. The first mounting surface 111 and the second mounting surface 112 may be located at different levels. As shown in fig. 7, the first mounting surface 111 is higher than the second mounting surface 112, thereby forming a stepped first surface 101. Thus, by the height difference, interference of the discharge valve 8a and the bypass valve 8b can be further avoided.

The first outlet 132 may be provided in the first mounting surface 111. The second outlet 152 may be disposed in the second mounting surface 112. In the example shown in the figures, the valve 8 comprises a valve plate covering the outlet of the passage and a flap for limiting the maximum position of the valve plate. With respect to the structure of the valve, each outlet may be in the same plane as the mounting surface for ease of sealing. It should be understood that the outlet need not be located in the mounting surface depending on the configuration of the various valves.

The second mounting surface 112 may be arcuate or annular such that the plurality of second passages 150 may be arranged in the circumferential direction. As described above, the second inlet 151 may be located radially outward of the first inlet 131. Accordingly, the second outlet 152 may be positioned radially outward of the first outlet 132. In this way, the lengths of the first and second passages may be minimized, and the processing difficulty and processing cost may be reduced.

The valve 8 (e.g., the drain valve 8a and the bypass valve 8 b) may be attached to the valve adapter 7 via fasteners such as screws. Furthermore, a locating feature (e.g., a locating recess, a locating hole, or a locating pin) may be provided on the valve adapter 7 to locate the valve 8.

Although the valve converter according to the present disclosure is described with reference to the examples of fig. 7 and 8, it should be understood that the valve converter of the present disclosure should not be limited to the specific structures shown in fig. 7 and 8. The valve switch according to the present disclosure is suitable for integrating valves for fluid channels for different purposes. As used herein, "different purposes" includes: for discharging the working fluid in the discharge chamber, for bypassing or prematurely discharging the working fluid in the compression chamber.

In addition, the structure, size, position, number, interrelationships, etc. of the individual passages may vary as desired. For example, the structure of the body may also be varied as desired. For example, any structure having other functions may be provided to facilitate the installation of the valve and the valve adapter itself.

Fig. 9 is a bottom perspective view of a variation of the adapter shown in fig. 8. The adapter 200 shown in fig. 9 differs from the adapter 100 shown in fig. 8 in the second passage. Specifically, as shown in fig. 9, the adapter 200 includes a plurality of second passages 251 to 253 that communicate with different compression chambers. Wherein the second passageway 253 is configured to communicate with bypass passageways of different compression chambers having the same pressure. The second passage 253 includes a section 261 that communicates with the bypass passage of one compression chamber, a section 262 that communicates with the bypass passage of the other compression chamber, and a connection passage 263 that communicates the sections 261 and 262. In the example of fig. 9, the second passage 253 has two outlets in communication with the sections 261 and 262, respectively, on which bypass valves are provided, respectively. With this structure, the working fluid of the different compression chambers of the same pressure can be discharged through the two outlets.

However, it should be understood that the second passage 253 may also have a single outlet in communication with one of the sections 261 and 262, with a bypass valve disposed thereon. In this way, the number of valves can be reduced, and the installation space of the valves can be reduced.

In an example not shown, a valve converter according to the present disclosure may have first and second mounting surfaces that are oriented differently. By changing the orientations of the first and second mounting surfaces, the mounting space can also be effectively reduced while avoiding interference of the valve.

Although various embodiments of the present disclosure have been described in detail herein, it is to be understood that the disclosure is not limited to those precise embodiments described and shown herein, and that other modifications and variations may be effected by one skilled in the art without departing from the spirit or scope of the disclosure. All such modifications and variations are intended to be within the scope of the present utility model. Moreover, all of the components, parts or features described herein may be replaced by other structurally and functionally equivalent components, parts or features.

Claims (15)

1. A valve adapter adapted to be attached to a non-orbiting scroll of a scroll compression mechanism of a scroll compressor, an end plate of the non-orbiting scroll being provided with a first fluid passage and a second fluid passage for different purposes,

it is characterized in that the method comprises the steps of,

the valve adapter includes:

a body;

a first passageway disposed in the body and having a first inlet adjacent to and in communication with the first fluid passage; and

a second passageway disposed in the body and having a second inlet adjacent to and in communication with the second fluid passageway,

wherein the first passage and the second passage are controlled by a valve to open or close.

2. The valve adapter of claim 1, wherein the first passageway has a first outlet and the second passageway has a second outlet, the valve comprising a first valve and a second valve, the first and second outlets being controlled to open or close by the first and second valves, respectively.

3. The valve adapter of claim 2, wherein the body has a first mounting face for mounting the first valve and a second mounting face for mounting the second valve, wherein the first outlet is disposed in the first mounting face and the second outlet is disposed in the second mounting face.

4. A valve adapter according to claim 3 wherein the first and second mounting surfaces have different orientations and/or are at different levels.

5. A valve adapter according to claim 3 wherein the first inlet opens into the first fluid passage communicating with the discharge chamber of the scroll compression mechanism, the second inlet opens into the second fluid passage communicating with the compression chamber of the scroll compression mechanism, and the second outlet is located radially outwardly of the first outlet.

6. The valve adapter according to claim 5, wherein the body is plate-shaped and has first and second surfaces opposite each other,

the first surface includes the first mounting surface and the second mounting surface,

the first inlet and the second inlet are disposed in the second surface.

7. A valve adapter according to claim 3, characterized in that it comprises a plurality of said second passages, the second outlets of which are arranged in a circumferential direction; and/or

The valve adapter includes a plurality of the first passages.

8. The valve adapter according to any one of claims 1 to 7 wherein a single second passage is provided for the same compression chamber and is configured to communicate with a plurality of bypass passages provided for the same compression chamber.

9. The valve adapter of claim 8, wherein the second inlet of the single second passage disposed for the same compression chamber covers and communicates with the outlets of the plurality of bypass passages.

10. The valve adapter according to any one of claims 1 to 7, wherein a single second passage is provided for different compression chambers having the same pressure, and the second passage includes a connection passage that communicates bypass passages of the different compression chambers.

11. A non-orbiting scroll assembly (10 a) comprising a valve, a non-orbiting scroll and a valve adaptor according to any one of claims 1 to 10, wherein the valve is attached to the valve adaptor and the valve adaptor is attached to the non-orbiting scroll such that the first passageway communicates with the first fluid passage and the second passageway communicates with the second fluid passage, the first and second fluid passages being for different purposes selected from: for discharging working fluid from the discharge chamber of the scroll compression mechanism, for bypassing or prematurely discharging working fluid from the compression chamber, and for introducing external working fluid into the compression chamber.

12. The non-orbiting scroll assembly of claim 11, wherein said valve adaptor is attached to an end plate of said non-orbiting scroll such that said first passageway communicates with a discharge chamber of said scroll compression mechanism and said second passageway communicates with a compression chamber of said scroll compression mechanism,

the valve includes a first valve for controlling opening or closing of the first passage and a second valve for controlling opening or closing of the second passage.

13. The non-orbiting scroll assembly of claim 12, wherein the non-orbiting scroll includes a hub extending axially on a side of the end plate opposite the wrap of the non-orbiting scroll, the valve adapter being located inboard of the hub.

14. A scroll compression mechanism comprising a non-orbiting scroll assembly according to any one of claims 11 to 13.

15. A scroll compressor comprising the scroll compression mechanism of claim 14.

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