Booster bypass valve structure and supercharger

Abstract

The utility model relates to a supercharger bypass valve structure and a supercharger. The supercharger bypass valve structure comprises a valve body; the connecting shaft is connected with the valve body, the connecting shaft is sleeved with a shaft sleeve, and the connecting shaft is rotationally connected with the shaft sleeve; the blocking piece is arranged on the connecting shaft in a sleeving mode and connected with the valve body, the blocking piece is located between the valve body and the shaft sleeve, the blocking piece comprises a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are connected with the bottom plate, and the first side plate and the second side plate extend in the direction close to the shaft sleeve; a first containing space is formed between the first side plate and the second side plate, and the end, close to the valve body, of the shaft sleeve is located in the first containing space. According to the supercharger bypass valve structure and the supercharger, waste gas leakage can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bypass valve structure technical field especially, relates to a kind of supercharger bypass valve structure and supercharger. BACKGROUND

[0002] Turbosupercharger is a kind of air compressor using exhaust gas inertia force to compress air, in the process of using supercharger, the exhaust gas of automobile is discharged from the outlet of supercharger, in the process of discharging, due to the gap between exhaust gas bypass valve and shaft sleeve, exhaust gas will leak from the gap between shaft sleeve and rotating shaft, cause environmental pollution. SUMMARY

[0003] Therefore, the utility model wants to solve the technical problem in providing a kind of supercharger bypass valve structure and supercharger, can reduce exhaust leakage.

[0004] To solve the above technical problem, the utility model provides a kind of supercharger bypass valve structure, comprising: valve body;Connecting shaft, the connecting shaft is connected with the valve body, shaft sleeve is set on the connecting shaft, and the connecting shaft is rotationally connected with the shaft sleeve;Barrier piece, the barrier piece is set on the connecting shaft and is connected with the valve body, and the barrier piece is located between the valve body and the shaft sleeve, the barrier piece includes bottom plate and the first side plate and second side plate connected with the bottom plate, the first side plate and the second side plate extend towards the shaft sleeve direction, first containing space is formed between the first side plate and the second side plate, and one end of the shaft sleeve close to the valve body is located in the first containing space.

[0005] In an embodiment of the utility model, the barrier piece is provided with through hole, the connecting shaft penetrates the through hole, and the second side plate is located at the edge of the through hole.

[0006] In an embodiment of the utility model, one end of the shaft sleeve close to the valve body is provided with recess, the second side plate is located in the recess, and the plane where the second side plate is located is parallel to the plane where the side wall of the recess is located.

[0007] In an embodiment of the utility model, there is a gap between the barrier piece and the shaft sleeve.

[0008] In an embodiment of the utility model, the thickness of the shaft sleeve gradually increases from one end of the shaft sleeve close to the valve body to the direction away from the valve body.

[0009] In an embodiment of the utility model, the plane where the first side plate is located is parallel to the side of the shaft sleeve away from the connecting shaft.

[0010] In one embodiment of the utility model, the valve body includes a sealing part and a connecting part, the connecting part includes a connecting block, and the blocking piece is connected with the connecting block.

[0011] In one embodiment of the utility model, a sealing ring is connected with the side wall of the sealing part.

[0012] The utility model also provides a kind of supercharger, including above-mentioned supercharger bypass valve structure.

[0013] In one embodiment of the utility model, the supercharger further includes a housing, the valve body is located in the housing, the connecting shaft and the shaft sleeve penetrate the housing, the shaft sleeve is connected with the housing, and the end of the connecting shaft is connected with the movable plate.

[0014] The above technical solution of the utility model has the following advantages compared with prior art:

[0015] The bypass valve structure and the supercharger of the utility model are provided with a blocking piece between the valve body and the shaft sleeve, and the end of the shaft sleeve is located in the first accommodating space, so that the gap between the shaft sleeve and the blocking piece is curved, the gap width between the shaft sleeve and the blocking piece is reduced compared with the gap between the valve body and the shaft sleeve, thereby reducing the leakage of exhaust gas between the shaft sleeve and the connecting shaft. The setting of the blocking piece can also reduce the wear between the shaft sleeve and the valve body and reduce the leakage of heat between the shaft sleeve and the connecting shaft. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail in combination with the drawings according to the specific embodiments of the utility model.

[0017] Figure 1 is the structure diagram of the bypass valve structure of the utility model supercharger;

[0018] Figure 2 is Figure 1 partial structure diagram;

[0019] Figure 3 is the structure diagram of blocking piece;

[0020] Figure 4 is the end structure diagram of Figure 1 ;

[0021] Figure 5 is Figure 4 cut view of A-A position in it;

[0022] Figure 6 is the partial structure diagram of supercharger.

[0023] The description of the drawings is as follows: 1, valve body; 2, blocking piece; 3, shaft sleeve; 4, movable plate; 5, connecting shaft; 6, shell; 11, connecting part; 12, sealing part; 13, sealing ring; 14, connecting block; 21, first side plate; 22, second side plate; 23, bottom plate; 31, groove; 61, second containing space. DETAILED DESCRIPTION

[0024] The utility model will be further explained in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation to the utility model.

[0025] Embodiment one

[0026] Referring to Figures 1 to 5 As shown in the utility model discloses a supercharger bypass valve structure, comprising: valve body 1;Connecting shaft 5, connecting shaft 5 with valve body 1 is connected, the sleeve of connecting shaft 5 is equipped with shaft sleeve 3, connecting shaft 5 with shaft sleeve 3 is rotatably connected;Blocking piece 2, blocking piece 2 is equipped on connecting shaft 5 and is connected with valve body 1, and blocking piece 2 is located between valve body 1 and shaft sleeve 3, blocking piece 2 includes bottom plate 23 and the first side plate 21 and the second side plate 22 connected with bottom plate 23, the first side plate 21 and the second side plate 22 extend towards the shaft sleeve 3 direction, the first side plate 21 and the second side plate 22 constitute the first containing space, the end of the shaft sleeve 3 close to valve body 1 is located in the first containing space.

[0027] The utility model discloses a supercharger bypass valve structure, by setting blocking piece 2 between valve body 1 and shaft sleeve 3, and the end of shaft sleeve 3 is located in the first containing space, so that the gap between shaft sleeve 3 and blocking piece 2 is curved, compared with the gap between valve body 1 and shaft sleeve 3, the gap width between shaft sleeve 3 and blocking piece 2 is reduced, so as to reduce the leakage of exhaust gas between shaft sleeve 3 and connecting shaft 5. The setting of blocking piece 2 can also reduce the wear between shaft sleeve 3 and valve body 1, reduce the leakage of heat between shaft sleeve 3 and connecting shaft 5.

[0028] Referring to Figure 2 And Figure 5 As shown in the utility model discloses a supercharger bypass valve structure, comprising: valve body 1;Connecting shaft 5, connecting shaft 5 with valve body 1 is connected, the sleeve of connecting shaft 5 is equipped with shaft sleeve 3, connecting shaft 5 with shaft sleeve 3 is rotatably connected;Blocking piece 2, blocking piece 2 is equipped on connecting shaft 5 and is connected with valve body 1, and blocking piece 2 is located between valve body 1 and shaft sleeve 3, blocking piece 2 includes bottom plate 23 and the first side plate 21 and the second side plate 22 connected with bottom plate 23, the first side plate 21 and the second side plate 22 extend towards the shaft sleeve 3 direction, the first side plate 21 and the second side plate 22 constitute the first containing space, the end of the shaft sleeve 3 close to valve body 1 is located in the first containing space.

[0029] One end of the connecting shaft 5 is connected with the connecting part 11 of the valve body 1, and the other end of the connecting shaft 5 is connected with the outside, and the valve body 1 can rotate after being subjected to the pressure of the exhaust gas. The shaft sleeve 3 is sleeved on the connecting shaft 5, and the connecting shaft 5 is rotationally connected with the shaft sleeve 3.

[0030] Referring to Figure 3 and Figure 5 As shown in the drawings, the blocking piece 2 is sleeved on the connecting shaft 5 and connected with the valve body 1, and the blocking piece 2 is located between the valve body 1 and the shaft sleeve 3. The blocking piece 2 comprises a bottom plate 23 and a first side plate 21 and a second side plate 22 connected with the bottom plate 23, the first side plate 21 and the second side plate 22 extend towards the shaft sleeve 3, a first containing space is formed between the first side plate 21 and the second side plate 22, and one end of the shaft sleeve 3 close to the valve body 1 is located in the first containing space. Specifically, the bottom of the blocking piece 2 is connected with the connecting block 14 of the valve body 1, a through hole is arranged at the middle position of the bottom plate 23 of the blocking piece 2, the connecting shaft 5 penetrates through the through hole, and the diameter of the through hole is slightly larger than the diameter of the connecting shaft 5, so that there is a gap between the edge of the through hole and the side wall of the connecting shaft 5.

[0031] The second side plate 22 is located at the edge of the through hole and is arranged around the edge of the through hole, and the connecting position of the second side plate 22 and the bottom plate 23 is arc-shaped. One end of the shaft sleeve 3 close to the valve body 1 is provided with a groove 31, the diameter of the groove 31 gradually decreases from the end of the shaft sleeve 3 to the direction away from the end of the shaft sleeve 3, that is, the groove 31 is overall tapered, so that the side wall of the groove 31 is inclined. The second side plate 22 is located in the groove 31, and the plane where the second side plate 22 is located is parallel to the plane where the side wall of the groove 31 is located, that is, the second side plate 22 is arranged in an inclined manner. There is a gap between the blocking piece 2 and the shaft sleeve 3, that is, there is a gap between the second side plate 22 and the side wall of the groove 31, so as to prevent the sliding friction between the second side plate 22 and the side wall of the groove 31 during the rotation of the valve body 1 driving the connecting shaft 5, and further prevent the wear of the shaft sleeve 3 and the second side plate 22.

[0032] The thickness of the shaft sleeve 3 gradually increases from the end of the shaft sleeve 3 close to the valve body 1 to the direction away from the valve body 1, and the outer side wall of the end of the shaft sleeve 3 close to the valve body 1 is arranged in an inclined manner. The first side plate 21 is arranged along the edge of the bottom plate 23 and surrounds the edge in a circle, and the connection position of the first side plate 21 and the bottom plate 23 is in an arc shape. The plane where the first side plate 21 is located is parallel to the side of the shaft sleeve 3 away from the connecting shaft 5, specifically, the first side plate 21 comprises a first connecting plate and a second connecting plate, the two ends of the first connecting plate are connected with the bottom plate 23 and the second connecting plate respectively, the first connecting plate is parallel to the inclined position of the outer side wall of the shaft sleeve 3, and the second connecting plate is parallel to the outer wall of the shaft sleeve 3, so that the plane where the first connecting plate is located and the plane where the second connecting plate is located form an obtuse angle, and the connection position of the first connecting plate and the second connecting plate is in an arc shape. There is a gap between the first side plate 21 and the side wall of the shaft sleeve 3, so as to prevent sliding friction between the first side plate 21 and the side wall of the shaft sleeve 3 during the rotation of the valve body 1 driving the connecting shaft 5, thereby preventing the shaft sleeve 3 and the first side plate 21 from being worn. After the blocking piece 2 is arranged between the valve body 1 and the shaft sleeve 3, the exhaust gas needs to pass through the first side plate 21, the bottom plate 23 and the second side plate 22 in sequence before reaching the gap between the shaft sleeve 3 and the connecting shaft 5, thereby reducing the exhaust gas leakage between the shaft sleeve 3 and the connecting shaft 5.

[0033] Embodiment two

[0034] Referring to Figure 6 The utility model also provides a supercharger, the supercharger includes the supercharger bypass valve structure in embodiment one, and the supercharger still includes the shell 6. The shell 6 includes the second containing space 61, and the valve body 1 is located in the second containing space 61 of the shell 6, and the connecting shaft 5 and the shaft sleeve 3 are arranged through the shell 6, the shaft sleeve 3 is connected with the shell 6, the end of the connecting shaft 5 away from the valve body 1 is connected with the movable plate 4, and the valve body 1 drives the connecting shaft 5 to rotate, thereby driving the movable plate 4 to rotate.

[0035] In use, the exhaust gas flows in the exhaust gas channel until the exhaust gas moves to the port of the exhaust gas channel, thereby exerting pressure on the sealing part 12 of the valve body 1, driving the valve body 1 to rotate, the blocking piece 2 rotates with the valve body 1, and the valve body 1 drives the movable plate 4 to rotate through the connecting shaft 5, and the movable plate 4 does work on the outside. After the valve body 1 rotates, the exhaust gas enters the second containing space 61, and finally the exhaust gas is discharged from the exhaust channel. When the exhaust gas is in the second containing space 61, the exhaust gas needs to pass through the first side plate 21, the bottom plate 23 and the second side plate 22 in sequence before reaching the gap between the shaft sleeve 3 and the connecting shaft 5, compared with the gap between the shaft sleeve 3 and the connecting shaft 5 being directly communicated with the second containing space 61, the exhaust gas leakage is less after the blocking piece 2 is arranged between the valve body 1 and the shaft sleeve 3.

[0036] The utility model discloses a kind of booster by-pass valve structure and booster, by setting blocking piece 2 between valve body 1 and shaft sleeve 3, and the end portion of shaft sleeve 3 is located in first containing space, to make the gap between shaft sleeve 3 and blocking piece 2 be curved, compared with the gap between valve body 1 and shaft sleeve 3, the gap width between shaft sleeve 3 and blocking piece 2 reduces, to reduce the leakage of exhaust gas between shaft sleeve 3 and connecting shaft 5.The setting of blocking piece 2 can also reduce the wear between shaft sleeve 3 and valve body 1, reduce the leakage of heat between shaft sleeve 3 and connecting shaft 5.

[0037] Obviously, the above embodiments are only examples for clearly illustrating, not limiting the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A structure of a supercharger bypass valve characterized by comprising: The application relates to a bypass valve structure of a supercharger. The bypass valve structure comprises a valve body, a connecting shaft connected with the valve body, a shaft sleeve sleeved on the connecting shaft and rotationally connected with the connecting shaft, and a blocking piece sleeved on the connecting shaft and connected with the valve body, and located between the valve body and the shaft sleeve. The blocking piece comprises a bottom plate and first and second side plates connected with the bottom plate, the first and second side plates extend towards the shaft sleeve, a first containing space is formed between the first and second side plates, and one end of the shaft sleeve close to the valve body is located in the first containing space. The blocking piece is provided with a through hole, the connecting shaft penetrates through the through hole, and the second side plate is located at the edge of the through hole.

2. The supercharger bypass valve structure according to claim 1, characterized by: One end of the shaft sleeve close to the valve body is provided with a groove, the second side plate is located in the groove, and the plane of the second side plate is parallel to the plane of the side wall of the groove.

3. The supercharger bypass valve structure according to claim 2, characterized by: There is a gap between the blocking piece and the shaft sleeve.

4. The supercharger bypass valve structure according to claim 1, characterized by: The thickness of the shaft sleeve gradually increases from one end of the shaft sleeve close to the valve body to the direction away from the valve body.

5. The supercharger bypass valve structure according to claim 1, characterized by: The plane of the first side plate is parallel to the side of the shaft sleeve away from the connecting shaft.

6. The supercharger bypass valve structure according to claim 1, characterized by: The valve body comprises a sealing part and a connecting part, the connecting part comprises a connecting block, and the blocking piece is connected with the connecting block.

7. The supercharger bypass valve structure according to claim 1, characterized by: The side wall of the sealing part is connected with a sealing ring.

8. The supercharger bypass valve structure according to claim 7, characterized by: The bypass valve structure of the supercharger comprises any one of claims 1-8.

9. A supercharger characterized by, The supercharger further comprises a shell, the valve body is located in the shell, the connecting shaft and the shaft sleeve penetrate through the shell, the shaft sleeve is connected with the shell, and the end of the connecting shaft is connected with a movable plate.

10. The supercharger of claim 9, wherein: ​

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