An air suction valve plate, valve group assembly, compressor and refrigerator

Abstract

The application provides an air suction valve piece, a valve group assembly, a compressor and a refrigerator. The air suction valve piece comprises a valve piece body, and an air suction valve is arranged on the valve piece body. The air suction valve comprises a first air suction valve, a second air suction valve and a third air suction valve. The first air suction valve, the second air suction valve and the third air suction valve are connected to the valve piece body through tail sections. The tail sections of the second air suction valve and the third air suction valve form a spacing structure with the tail section of the first air suction valve. The three air suction valves are independently arranged, and the tail sections of the three air suction valves are independently distributed. Therefore, the stress distribution is improved, the reliability of the valve piece is increased, the equivalent mass of a single valve piece is reduced, and the vibration noise is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressor, in particular to an air suction valve plate, a valve group assembly, a compressor and a refrigerator. BACKGROUND

[0002] The valve group assembly is an important component of the compressor, and its structure can greatly affect the performance and reliability of the compressor. The existing piston compressor usually adopts a single-hole valve group. The equivalent mass of the single-hole valve plate is large, and the response speed is slow, which leads to small refrigerating capacity and large noise, and it is difficult to achieve high-efficiency operation in a wide frequency band. The wide-frequency three-hole air suction valve group assembly applied to a wide-frequency compressor can operate in a wide frequency range of 16-150 Hz, realize different cooling capacity matching, achieve large refrigerating capacity with a small displacement compressor, thereby improving the power density of the compressor and the refrigerating capacity at a low evaporation temperature (such as-35℃ to-50℃), and realizing the deep-freezing function of the refrigerator.

[0003] However, the existing three-hole valve group has some disadvantages: the hollow part of the air suction valve plate has a large residual volume; the three air suction valve roots share a valve gap, which is prone to stress concentration and difficult to ensure reliable operation in a wide frequency band; the three-hole valve group has three exhaust ports, which increases the residual volume, the exhaust structure is complex, and the manufacturing cost is increased. SUMMARY

[0004] In view of this, the present application provides an air suction valve plate, a valve group assembly, a compressor and a refrigerator, at least to solve the technical problem that the air suction valve root shares a valve gap, which is prone to stress concentration in the prior art, in particular:

[0005] In a first aspect, the present application provides an air suction valve plate, comprising a valve plate body, wherein an air suction valve is arranged on the valve plate body, the air suction valve comprises a first air suction valve, a second air suction valve and a third air suction valve, the first air suction valve, the second air suction valve and the third air suction valve are connected to the valve plate body through tail sections,

[0006] The tail sections of the second air suction valve and the third air suction valve form a spacing structure with the tail section of the first air suction valve.

[0007] Further optionally, the profiles of the first air suction valve, the second air suction valve and the third air suction valve do not intersect.

[0008] Further optionally, the edges of the first air suction valve, the second air suction valve and the third air suction valve form a gap with the valve plate body,

[0009] The spacing structure is formed integrally with the valve plate body, and is separated from the air suction valve through the gap.

[0010] Further optionally, the second air suction valve and the third air suction valve are symmetrically arranged on both sides of the first air suction valve,

[0011] The second and third suction valves are arranged obliquely relative to the first suction valve.

[0012] Further optionally, the first, second and third suction valves each comprise a head section, a neck section and a tail section, the neck section is located between the tail section and the head section to form a neck structure, the head section has a circular arc shaped head end surface, and the tail section has an outward expanding structure extending from the neck section to both sides.

[0013] Further optionally, the first, second and third suction valves have different stiffness and / or fixed frequencies.

[0014] In a second aspect, the present application provides a valve group assembly, comprising:

[0015] a valve plate, the valve plate comprising a suction hole and an exhaust hole, the suction hole being provided with a suction valve corresponding to the suction hole, the exhaust hole being provided with an exhaust valve corresponding to the exhaust hole;

[0016] The suction valve has the same number as the suction valve and is one-to-one corresponding, for controlling the opening degree of the suction hole; the exhaust valve is arranged on the valve plate and corresponds to the exhaust hole, for controlling the opening degree of the exhaust hole;

[0017] A lift limiter is used to press the fixed end of the exhaust valve plate against the valve plate and limit the opening height of the exhaust valve plate.

[0018] Further optionally, the inner wall of the suction hole forms a flow guide slope.

[0019] Further optionally, a part of the inner wall of the suction hole is arranged obliquely relative to the axis of the suction hole to form the flow guide slope.

[0020] Further optionally, the suction valve plate is arranged on the first surface of the valve plate,

[0021] A suction hole valve line is formed on the first surface of the valve plate around the circumference of the suction hole, and the suction hole valve line is used for sealing contact with the suction valve.

[0022] Further optionally, the outer periphery of the suction hole valve line is provided with a suction avoiding groove, and the suction avoiding groove is an annular equal-width groove formed around the circumference of the suction hole valve line.

[0023] Further optionally, the exhaust valve plate is arranged on the second surface of the valve plate,

[0024] An exhaust hole valve line is formed on the second surface of the valve plate around the circumference of the suction hole, and the exhaust hole valve line is used for sealing contact with the exhaust valve plate.

[0025] Further optionally, an exhaust limiting groove is arranged on the outer periphery of the exhaust hole valve string for mounting an exhaust valve piece.

[0026] In a third aspect, the application provides a compressor comprising the valve group assembly.

[0027] In a fourth aspect, the application provides a refrigerator comprising the valve group assembly or the compressor.

[0028] The three suction valves are independently arranged, and the tail sections of the three suction valves are independently distributed, thereby improving stress distribution, increasing valve piece reliability, reducing equivalent mass of a single valve piece, and improving vibration noise. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which example embodiments of the present disclosure are shown. The following drawings described below are only some embodiments of the present disclosure, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0030] Figure 1 A structure schematic diagram of a suction valve piece of an embodiment of the application is shown;

[0031] Figure 2 A local structure schematic diagram of a suction valve piece of an embodiment of the application is shown;

[0032] Figure 3 A first surface structure schematic diagram of a valve plate of an embodiment of the application is shown;

[0033] Figure 4 A second surface structure schematic diagram of a valve plate of an embodiment of the application is shown;

[0034] Figure 5 A local cross-section schematic diagram of an assembly state of a valve plate and a suction valve piece of an embodiment of the application is shown;

[0035] Figure 6 A cross-section schematic diagram of an assembly state of a valve plate and an exhaust valve piece and a lift limiter of an embodiment of the application is shown;

[0036] Figure 7 An explosion schematic diagram of a partial structure of a compressor of an embodiment of the application is shown;

[0037] Figure 8 A comparison of experimental data of a suction valve piece of the application and a conventional valve piece is shown.

[0038] In the drawings:

[0039] 1, suction valve plate; 10, valve plate body; 101, spacing structure; 11, first suction valve; 111, head section; 112, neck section; 113, tail section; 12, second suction valve; 13, third suction valve; 14, valve plate exhaust port; 15, valve plate air passage;

[0040] 2, valve plate; 21, suction hole; 211, flow guide slope; 22, suction hole valve line; 23, suction avoidance groove; 24, exhaust hole; 241, exhaust hole valve line; 242, exhaust limiting groove; 25, valve plate air passage hole;

[0041] 3, exhaust valve plate; 4, lift limiter; 5, cylinder head gasket; 6, suction valve gasket; 7, clip spring; 8, cylinder head. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] The terms used in the embodiments of the present application are merely for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Multiple" generally includes at least two, but does not exclude the case of including at least one.

[0044] It should be understood that the term "and / or" used herein is merely to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0045] It should also be noted that the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the goods or systems including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such goods or systems. Without more limitation, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the goods or systems including the element.

[0046] The three-hole valve group of the present application can be applied to wide-frequency compressors to realize different cooling capacity matching, so that small-displacement compressors can realize large-displacement refrigeration capacity, thereby improving the power density of the compressor, and improving the refrigeration capacity at low evaporation temperature (such as -35℃ to -50℃), realizing the deep freezing function of the refrigerator. The three-hole valve group can improve the response speed of a single valve plate, take into account the low-frequency performance and high-frequency cooling capacity, meet different displacement requirements, and has a relatively optimal suction efficiency in a relatively wide frequency range of 16Hz to 150Hz. The second suction valve and the third suction valve are symmetrically arranged in an inclined manner, so that the tail sections of the three suction valves are independently distributed, thereby improving the stress distribution, increasing the reliability of the valve plate, reducing the equivalent mass of a single valve plate, and improving the vibration and noise. The present application will be described in detail below in combination with specific embodiments:

[0047] As shown in Figure 1 、 Figure 2 , the present application provides a suction valve plate 1, which comprises a valve plate body 10, and a suction valve is arranged on the valve plate body 10. The suction valve comprises a first suction valve 11, a second suction valve 12 and a third suction valve 13. The first suction valve 11, the second suction valve 12 and the third suction valve 13 are all connected to the valve plate body 10 through tail sections 113. The tail sections 113 of the second suction valve 12 and the third suction valve 13 are both spaced from the tail section 113 of the first suction valve 11 to form a spacing structure 101, so that the first suction valve 11, the second suction valve 12 and the third suction valve 13 form a mutually independent structure, i.e., the profiles of the first suction valve 11, the second suction valve 12 and the third suction valve 13 do not intersect, and the three are independent of each other. Preferably, the stiffness and the fixed frequency of the first suction valve 11, the second suction valve 12 and the third suction valve 13 are different, taking into account the low-frequency performance and the high-frequency cooling capacity, meeting different displacement requirements, and having a relatively optimal suction efficiency in a relatively wide frequency range of 16Hz to 150Hz. The compressor can have the ability to operate at high performance from low frequency to ultrahigh frequency range without changing the structure size of the compressor body. Preferably, the thickness of the suction valve plate 1 can be set to 0.076mm to 0.203mm, preferably 0.102mm.

[0048] Preferably, the suction valve plate 1 is integrally formed by using a flexible material, i.e., the valve plate body 10, the suction valve and the spacing structure 101 are integrally formed. A gap is formed between each suction valve and the valve plate body 10, and between adjacent two suction valves, so that each suction valve can move independently without interference.

[0049] The structures of the plurality of suction valves are the same, as shown in Figure 2 , each comprising a tail section 113, a necked section 112 and a head section 111. The tail section 113 is connected to the valve plate body 10. Taking the first suction valve 11 as an example, Figure 2As shown, segment a is the tail segment 113, segment b is the necked segment 112, and segment c is the head segment 111. The necked segment 112 is located between the tail segment 113 and the head segment 111 and is connected to both. The head segment 111 has a circular structure, forming an arc-shaped head end face. The necked segment 112 gradually decreases in width from both ends to the middle, forming a waist-shaped structure. The reduced width of the necked segment 112 can effectively reduce the difficulty of opening the valve plate, increase the intake volume when the intake valve is opened, and avoid stress concentration in the tail segment 113, thus preventing valve plate breakage, improving the stress distribution of the intake valve, and improving the reliability of the valve plate. The tail segment 113 has an outward expansion structure extending from the necked segment 112 to both sides, increasing the connection side length with the valve plate body 10 and improving the reliability of the connection.

[0050] like Figure 2 As shown, the arc segment A1A2 forms the profile of the first intake valve 11, the arc segment B1B2 forms the profile of the second intake valve 12, and the arc segment C1C2 forms the profile of the third intake valve 13. The profiles of the first intake valve 11, the second intake valve 12, and the third intake valve 13 do not intersect, so that the tail segments of the three intake valves are spaced apart from each other, avoiding stress concentration.

[0051] In this embodiment, the first intake valve 11 is located on the center line of the valve body 10, and the second intake valve 12 and the third intake valve 13 are disposed on both sides of the first intake valve 11, and the second intake valve 12 and the third intake valve 13 are inclined relative to the first intake valve 11. Specifically, the head section 111 of the second intake valve 12 and the third intake valve 13 is close to the necked section 112 of the first intake valve 11, and the tail section 113 of the second intake valve 12 and the third intake valve 13 extends away from the first intake valve 11, so that the tail sections 113 of different intake valves are far apart. That is, the axis of the second intake valve 12 and the axis of the third intake valve 13 are symmetrically distributed about the axis of the first intake valve 11 and the axes of the three intake valves intersect, which improves stress distribution, increases valve plate reliability, reduces the equivalent mass of a single valve plate, and improves vibration and noise.

[0052] Preferably, the spacer structure 101 between the second intake valve 12 and the first intake valve 11 is formed between the constricted section 112 of the second intake valve 12 and the tail section 113 of the first intake valve 11; the spacer structure 101 between the third intake valve 13 and the first intake valve 11 is formed between the constricted section 112 of the third intake valve 13 and the tail section 113 of the first intake valve 11, that is, the spacer structure 101 is formed on both sides of the tail section 113 of the first intake valve 11 and is spaced apart from the intake valves. The arrangement of the spacer structure 101 makes the tail sections 113 of two adjacent intake valves independent of each other, further avoiding stress concentration in the tail sections 113 of different intake valves.

[0053] The valve body 10 is further provided with a valve exhaust port 14 and a valve air port 15 for cooperation with the installation of other components (described in detail below).

[0054] Preferably, in other embodiments, four air suction valves can also be provided, which can be symmetrically arranged about the center line of the valve body 10, wherein the four air suction valves can be symmetrically arranged in two rows and two columns, and the tail sections 113 are symmetrically inclined; or can be arranged horizontally, with the left and right air suction valves being inclined, and the middle two air suction valves being vertically arranged. It is easily conceivable that in different embodiments, different numbers of air suction valves can also be provided according to requirements.

[0055] The present application also provides a valve group assembly, as shown in Figure 3 、 Figure 4 , comprising:

[0056] a valve plate 2, which comprises air suction holes 21 and exhaust holes 24, the air suction holes 21 are provided in plurality, in the present embodiment, three air suction holes 21 are provided;

[0057] the above-mentioned air suction valve 1, the air suction valve is provided in one-to-one correspondence with the plurality of air suction holes 21, for controlling the opening degree of the air suction hole 21, and the valve exhaust port 14 on the air suction valve 1 is provided in correspondence with the exhaust hole 24;

[0058] an exhaust valve 3, which is provided on the valve plate 2 and is provided in correspondence with the exhaust hole 24, for controlling the opening degree of the exhaust hole 24;

[0059] a lift limiter 4, for pressing the fixed end of the exhaust valve 3 against the valve plate 2 and limiting the opening height of the exhaust valve 3.

[0060] In the present embodiment, three air suction holes 21 are provided, which form a one-to-one correspondence relationship with the air suction valves on the air suction valve 1, and each air suction valve controls the opening degree of one air suction hole 21. The shapes, sizes, etc. of the three air suction holes 21 can be different, for example, they can be round holes, oval holes, or round holes with edges, etc. Correspondingly, the angles, shapes, etc. of the three air suction valves can also be different.

[0061] Preferably, the inner wall of the air suction hole 21 forms a flow guide slope 211 for air suction flow guide, reducing flow loss and improving air suction efficiency. In the present embodiment, a part of the inner wall of the air suction hole 21 is inclined relative to the axis of the air suction hole 21 to form the flow guide slope 211, for example, it is a circular arc slope, preferably along one diameter of the air suction hole 21 to divide it into two parts, one part is a cylindrical cavity, and the other part is inclined to one side to form the flow guide slope 211.

[0062] As shown in Figure 5As shown, the suction valve plate 1 is disposed on the first surface of the valve plate 2. A suction valve line 22 is formed around the suction hole 21 on the first surface of the valve plate 2. The suction valve line 22 is used to make sealing contact with the suction valve to ensure that the suction valve has a sufficient sealing distance.

[0063] An intake clearance groove 23 is provided on the outer periphery of the intake valve line 22. The intake clearance groove 23 is an annular groove of equal width formed around the circumference of the intake valve line 22, which reduces the contact area between the intake valve and the intake valve line 22, facilitating the opening and closing of the intake valve. When the intake valve is closed, the head section 111 rests on the intake valve line, ensuring that the intake port 21 is completely covered and there is no gas leakage. When the intake valve is opened by the pressure difference, the head section 111 moves away from the intake valve line, and the airflow enters the intake port 21 from the distance between the head section 111 and the intake valve line.

[0064] An exhaust valve plate 3 is disposed on the second surface of the valve plate 2. An exhaust valve line 241 is formed circumferentially around the intake hole 21 on the second surface of the valve plate 2. The exhaust valve line 241 is used to make sealing contact with the exhaust valve plate 3. An exhaust limiting groove 242 is provided on the outer periphery of the exhaust valve line 241 for mounting the exhaust valve plate 3. The exhaust valve plate 3 covers and fits the exhaust valve line to ensure a seal, and the exhaust limiting groove 242 is provided on the outer periphery of the exhaust valve line 241 to facilitate the opening and closing of the exhaust valve.

[0065] Preferably, the valve plate 2 is also provided with a valve plate vent hole 25, and correspondingly, the intake valve plate 1 is provided with a valve plate vent 15 for communicating with the valve plate vent hole 25.

[0066] The exhaust valve plate 3 includes a fixed end and an exhaust valve head end. The lift limiter 4 presses the fixed end of the exhaust valve plate 3 into the exhaust limit groove 242 on the valve plate 2. The protrusion in the middle of the lift limiter 4 is a certain distance away from the exhaust valve head end, limiting the opening height of the exhaust valve plate 3 and preventing excessive impact force from causing the exhaust valve plate 3 to break. Figure 6 As shown, when the exhaust valve plate 3 is closed, it covers the exhaust port valve line 241 of the valve plate 2 to ensure that the gas does not leak at the exhaust port 24 position. When the exhaust valve plate 3 is open, the fixed end is fixed in the exhaust limiting groove 242, and the protruding section of the lift limiter 4 restricts the exhaust valve head from swinging within a certain distance.

[0067] The present invention also provides a compressor including the above-described valve assembly, such as... Figure 6 , Figure 7 As shown, it also includes an intake valve gasket 6, an exhaust valve plate 3, a cylinder head gasket 5, a retaining ring 7, and a cylinder head 8, arranged in... Figure 7 The valve assembly is installed in sequence, with the valve group assembly mounted on the end face of the compressor cylinder bore, the intake valve gasket 6 near the cylinder end face, and the cylinder head 8 near the outside of the cylinder, connected by fasteners.

[0068] The valve plate vent 15, the valve plate vent hole 25, the cylinder head gasket 5 vent hole and the cylinder head 8 exhaust cavity are communicated, so that the exhaust gas flows into the cylinder block muffling cavity. The cylinder head gasket 5 suction port and exhaust port correspond to the valve plate 2 suction hole 21 and exhaust hole 24 respectively, the snap spring 7 is installed at the cylinder head suction port limiting position, the cylinder head 8 is attached to the cylinder head gasket 5, the clearance channel is communicated during assembly, and fastening is used for connection, so as to ensure that the assembly is tightly attached.

[0069] The application also provides a refrigerator comprising the valve group assembly or the compressor.

[0070] The application uses a three-hole valve group design, the single suction port diameter is reduced, the suction valve is subjected to smaller force, the service life is improved, and the pneumatic noise of the compressor is reduced. At the same time, the three suction holes can maximize the use of the cylinder hole area, ensure the effective flow area, and meet the performance requirements of the compressor. The suction valve part has a large fixed frequency and appropriate stiffness due to the reduced head section quality, improves the response speed, improves the backflow phenomenon caused by the delay of the valve plate opening and closing time during the operation of the compressor, reduces the flow resistance loss, thereby improving the suction volume and volumetric efficiency of the compressor.

[0071] As shown in Figure 8 The experimental comparison and verification of the three-hole valve group and the conventional single-hole valve group volumetric efficiency show that the three-hole valve group has higher volumetric efficiency than the conventional single-hole valve group in the medium frequency and high frequency ranges due to the fast response speed and high suction efficiency of the suction valve plate 1. The three-hole valve group can meet the different performance and cooling capacity requirements of the compressor in a wide operating frequency (16-150 Hz) range, and can be applied to the refrigerator compressor to ensure its low frequency performance, and can make the certain displacement compressor achieve greater displacement refrigeration capacity when operating at high frequency, thereby improving the power density of the compressor; at the same time, the refrigeration capacity of the compressor at low evaporation temperature (such as-35℃ to-50℃) is improved, and the deep freezing function of the refrigerator is realized.

[0072] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structure, arrangement or implementation method described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements within the spirit and scope of the appended claims.

Claims

1. An air suction valve plate characterized by, The valve plate body is provided with suction valves, the suction valves include a first suction valve, a second suction valve and a third suction valve, the first suction valve, the second suction valve and the third suction valve are connected to the valve plate body through tail sections, and the tail sections of the second suction valve and the third suction valve are spaced from the tail section of the first suction valve; The second suction valve and the third suction valve are symmetrically arranged on both sides of the first suction valve, and the second suction valve and the third suction valve are arranged obliquely relative to the first suction valve; gaps are formed between the first suction valve and the second suction valve and between the first suction valve and the third suction valve; The first suction valve, the second suction valve and the third suction valve each include a head section, a necked section and a tail section, the necked section is arranged between the tail section and the head section to form a necked structure, the head section has a circular arc-shaped head end surface, and the tail section has an outward expanding structure extending from the necked section to both sides; The head section of the second suction valve and the head section of the third suction valve are close to the necked section of the first suction valve, and the tail section of the second suction valve and the tail section of the third suction valve extend towards positions away from the first suction valve respectively.

2. The air suction valve plate according to claim 1, wherein The profile lines of the first suction valve, the second suction valve and the third suction valve do not intersect.

3. The suction valve blade of claim 1, wherein The edges of the first suction valve, the second suction valve and the third suction valve are spaced from the valve plate body, The spacing structure is formed integrally with the valve plate body and is separated from the suction valves through the gaps.

4. The suction valve plate according to any one of claims 1-3, characterized in that The first suction valve, the second suction valve and the third suction valve have different stiffness and / or fixed frequencies.

5. A valve block assembly characterized by, The valve plate includes suction holes and exhaust holes, the suction holes are provided with a plurality of suction valves, and the exhaust holes are provided with an exhaust valve. The exhaust valve is arranged on the valve plate and corresponds to the exhaust hole to control the opening degree of the exhaust hole. The inner wall of the suction hole forms a flow guide slope. Part of the inner wall of the suction hole is arranged obliquely relative to the axis of the suction hole to form the flow guide slope. The suction valve is arranged on the first surface of the valve plate, 6. The valve block assembly of claim 5, wherein, The first surface of the valve plate is provided with a suction hole valve line around the circumference of the suction hole, and the suction hole valve line is used for sealing contact with the suction valve.

7. The valve block assembly of claim 6, wherein, The outer periphery of the suction hole valve line is provided with a suction avoidance groove, which is an annular groove formed around the circumference of the suction hole valve line.

8. The valve block assembly of claim 5, wherein, The exhaust valve is arranged on the second surface of the valve plate, The second surface of the valve plate is provided with an exhaust hole valve line around the circumference of the exhaust hole, and the exhaust hole valve line is used for sealing contact with the exhaust valve.

9. The valve block assembly of claim 8, wherein, The outer periphery of the exhaust hole valve line is provided with an exhaust limiting groove for mounting the exhaust valve.

10. The valve block assembly of claim 5, wherein, The valve group assembly includes the valve plate assembly of any one of claims 5-11. ​ 11. The valve block assembly of claim 10, wherein, ​ 12. A compressor characterized by, ​ 13. A refrigerator characterized by comprising: A valve train assembly comprising the valve train assembly of any one of claims 5-11 or the compressor of claim 12.

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