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CN106285919B - Wastegate and turbocharger having the same - Google Patents

Wastegate and turbocharger having the same Download PDF

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Publication number
CN106285919B
CN106285919B CN201510268911.7A CN201510268911A CN106285919B CN 106285919 B CN106285919 B CN 106285919B CN 201510268911 A CN201510268911 A CN 201510268911A CN 106285919 B CN106285919 B CN 106285919B
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China
Prior art keywords
rocker
rocker arm
shaft
air release
release valve
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CN201510268911.7A
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Chinese (zh)
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CN106285919A (en
Inventor
代建峰
朱永成
雷超群
张凯
曾志新
邵发科
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Priority to CN201510268911.7A priority Critical patent/CN106285919B/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Supercharger (AREA)

Abstract

一种废气旁通装置,包括摇臂轴、摇臂轴套、放气阀连接臂及放气阀,所述摇臂轴穿设于所述摇臂轴套内并可在所述摇臂轴套内转动,所述放气阀通过所述放气阀连接臂连接于所述摇臂轴上,所述摇臂轴套的内表面上形成有多个稳流槽,所述多个稳流槽沿着所述摇臂轴套的轴向相互间隔地分布在所述摇臂轴套的内表面上。本发明通过在摇臂轴套的内表面设置稳流槽,减少了进入摇臂轴及摇臂轴套之间间隙的气流的速度,继而减少了气流与摇臂轴及摇柄之间的作用力,减少了摇臂轴与摇臂轴套以及摇柄与摇臂轴套之间的异响及震动。

A waste gas bypass device includes a rocker arm shaft, a rocker arm shaft sleeve, a vent valve connecting arm and a vent valve, wherein the rocker arm shaft is passed through the rocker arm shaft sleeve and can be connected to the The air release valve is connected to the rocker arm shaft through the air release valve connecting arm, and a plurality of flow stabilization grooves are formed on the inner surface of the rocker arm shaft sleeve. The grooves are distributed on the inner surface of the rocker arm bushing at intervals along the axial direction of the rocker arm bushing. The invention reduces the speed of the air flow entering the gap between the rocker arm shaft and the rocker arm shaft sleeve by arranging the steady flow groove on the inner surface of the rocker arm shaft sleeve, thereby reducing the effect between the air flow and the rocker arm shaft and the rocker handle It reduces the abnormal noise and vibration between the rocker shaft and the rocker sleeve, as well as between the rocker and the rocker sleeve.

Description

Exhaust gas bypass device and turbocharger with it
Technical field
The present invention relates to the technical field of engines of vehicle, especially a kind of exhaust gas bypass device and the turbine with it increase Depressor.
Background technique
Requirement with people to the engine power performance, economic performance of automobile is continuously improved, bypass type turbocharging Device on the engine using more and more common.
Bypass type turbocharger can be when high engine speeds rotate, will be a part of by the unlatching of exhaust gas bypass device Exhaust gas is discharged from the bypass of turbocharger, reduces the acting of turbine, reduces the revolving speed of turbocharger, then realizes to hair The control of motivation performance.Fig. 1 is the structural schematic diagram of exhaust gas bypass device in the prior art, as shown in Figure 1, exhaust gas bypass device Including swing arm sleeve 11, Rocker arm assembly 12, vent valve linking arm 13 and vent valve 14.Rocker arm assembly 12 include rocker arm shaft 121 and Rocking handle 122, one end of rocker arm shaft 121 are connected after being fixed on rocking handle 122 with the distance rod (not shown) of actuator, work as rocker arm When axis 121 is inserted into swing arm sleeve 11, rocker arm shaft 121 stretches out swing arm sleeve 11, rocker arm shaft 121 far from the other end of rocking handle 122 Stretch out swing arm sleeve 11 one end be connected with vent valve linking arm 13, the one end of vent valve linking arm 13 far from rocker arm shaft 121 and Vent valve 14 is connected, and vent valve 14 is set in the exhaust outlet (not shown) on supercharger volute.Vent valve 14 is equipped with connection Pin shaft 141, vent valve linking arm 13 is equipped with connecting hole (not shown), when vent valve 14 is connect with vent valve linking arm 13, Connection pin shaft 141 is protruded into connecting hole first, is then clipped on connection pin shaft 141 by a fixinig plate 142, makes vent valve Linking arm 13 is fixed between fixinig plate 142 and vent valve 14.When distance rod, which shakes Rocker arm assembly 12, to be rotated, Rocker arm assembly 12 It drives vent valve 14 to rotate around the axis of rocker arm shaft 121 by vent valve linking arm 13, vent valve 14 is then made to leave valve seat, Realize the unlatching of exhaust gas bypass device and the discharge of exhaust gas.
In the assembly of exhaust gas bypass device, between rocker arm shaft 121 and the inner surface of swing arm sleeve 11, rocking handle 122 and rocker arm Between connection pin shaft 141 between the end face of axle sleeve 11 and on vent valve 14 and fixinig plate 142 and vent valve linking arm 13 all There are certain movement clearances.Booster during the work time, along with the variation of engine load, leads to the exhaust of engine Fluctuation continuously emerges in pressure, and the fluctuation of pressure at expulsion can generate following influence: first, due to rocker arm shaft 121 and swing arm sleeve Radially there is gap in rocker arm shaft 121 between 11, therefore exhaust gas can be overflowed outward by above-mentioned gap and push 121 band of rocker arm shaft Shake arm assembly 12 to move to the direction away from turbocharger housing.Since Rocker arm assembly 12 is simultaneously by exhaust gas to outside volute Motive force and actuator motive force of the distance rod into volute, two opposite power can make the rocker arm shaft of Rocker arm assembly 12 121 move axially in reciprocal fashion in swing arm sleeve 11, and Rocker arm assembly 12 can generate shock with the end face of swing arm sleeve 11 at this time, from And generate abnormal sound and vibration;Second, the fluctuation of pressure at expulsion causes vent valve 14 to generate rotation, due to the connection on vent valve 14 The presence in gap between pin shaft 141 and vent valve linking arm 13, vent valve 14 can generate in rotary course taps abnormal sound and shake It is dynamic.
In existing exhaust gas bypass device, without actively reduce between Rocker arm assembly and swing arm sleeve and vent valve and The measure of abnormal sound and vibration between vent valve linking arm, this leads to have the automobile of bypass type turbocharger generally existing larger NVH (Noise, Vibration, Harshness, noise, vibration and sound vibration roughness) problem, to reduce engine Performance affects the comfort property of automobile.
Summary of the invention
The purpose of the present invention is to provide a kind of exhaust gas bypass device and with its turbocharger, exhaust gas bypass dress Set abnormal sound and the vibration that can be reduced in the process of running between Rocker arm assembly and swing arm sleeve.
Another object of the present invention is to provide a kind of exhaust gas bypass device and with its turbocharger, by the exhaust gas Exchange device can reduce abnormal sound and the vibration between vent valve and vent valve linking arm in the process of running.
The present invention provides a kind of exhaust gas bypass device, including rocker arm shaft, swing arm sleeve, vent valve linking arm and vent valve, The rocker arm shaft is arranged in the swing arm sleeve and can rotate in the swing arm sleeve, and the vent valve passes through the deflation Valve linking arm is connected on the rocker arm shaft, and multiple stable chutes are formed on the inner surface of the swing arm sleeve, the multiple steady Chute is distributed on the inner surface of the swing arm sleeve spaced reciprocally along the axial direction of the swing arm sleeve, the exhaust gas bypass Device further includes rocking handle, and the rocking handle and the vent valve linking arm are connected to the both ends of the rocker arm shaft, the rocker arm Axle sleeve is formed with diversion groove, inner surface of the diversion groove from the swing arm sleeve on the end face of the rocking handle side Side extends to the outer surface side of the swing arm sleeve, and the vent valve is equipped with a connection pin shaft, the vent valve connection One end of the closely described vent valve of arm rest is equipped with connecting hole and passes through a fixinig plate after the connection pin shaft protrudes into the connecting hole The vent valve linking arm is fixed between the fixinig plate and the vent valve, is provided with accommodating on the connection pin shaft Slot, the hole wall of the connecting hole are sticked in the accommodation groove, and two anti-rotations are additionally provided on the outer peripheral edge position of the vent valve Turn limited post, for the connecting pin axle position between described two anti-rotational limited posts, described two anti-rotational limited posts distinguish position In the two sides of the vent valve linking arm, the bottom surface of the vent valve is plane.
Further, each described stable chute is in circular ring shape on the circumferencial direction of the swing arm sleeve.
Further, the diversion groove is on the end face of the swing arm sleeve from the inner surface side of the swing arm sleeve It is extended continuously in the shape of a spiral to the outer surface side of the swing arm sleeve.
Further, the diversion groove is on the end face of the swing arm sleeve along the radial direction of the swing arm sleeve Outer surface side from the inner surface side of the swing arm sleeve to the swing arm sleeve extends straight.
Further, the first gasket, the first gasket set are equipped between the end face of the swing arm sleeve and the rocking handle It is located on the rocker arm shaft and is folded between the end face of the swing arm sleeve and the rocking handle.
Further, one end of the vent valve linking arm and the rocker arm axis connection, the vent valve linking arm it is another One end is connected on the connection pin shaft.
Further, the second gasket, the second gasket set are equipped between the fixinig plate and the vent valve linking arm It is located on the connection pin shaft and is folded between the fixinig plate and the vent valve linking arm.
The present invention also provides a kind of turbocharger, have exhaust gas bypass device, and the exhaust gas bypass device is this hair Any one exhaust gas bypass device of bright offer.
In conclusion stable chute is arranged by the inner surface in swing arm sleeve in the present invention, reduces into rocker arm shaft and shake The speed of the air-flow in gap, then reduces the active force between air-flow and rocker arm shaft and rocking handle, reduces and shake between arm axle set Abnormal sound and vibration between arm axle and swing arm sleeve and rocking handle and swing arm sleeve.By the setting of diversion groove, the first gasket, Further reduce the collision between the end face of swing arm sleeve and rocking handle.In addition, the present invention by anti-rotational limited post with And second gasket setting, the collision between vent valve and vent valve linking arm can be reduced, reduce vent valve and vent valve Abnormal sound and vibration between linking arm.Therefore, exhaust gas bypass device provided by the invention can be discharged useless in exhaust gas bypass device The abnormal sound and vibration that exhaust gas bypass device occurs are reduced during gas, improve the performance of engine and the comfort of automobile.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of exhaust gas bypass device in the prior art.
Fig. 2 is the decomposition texture schematic diagram of exhaust gas bypass device provided by the invention.
Fig. 3 is the assembly structure diagram of exhaust gas bypass device provided by the invention.
Fig. 4 is the schematic top plan view of exhaust gas bypass device shown in Fig. 3.
Fig. 5 is exhaust gas bypass device provided by the invention loaded on the structural schematic diagram in turbocharger.
Fig. 6 is the schematic cross-section in the direction VI-VI in Fig. 4.
Fig. 7 is the structural schematic diagram of swing arm sleeve in Fig. 2.
Fig. 8 is the structural schematic diagram of swing arm sleeve end face in Fig. 2.
Fig. 9 is the schematic cross-section in the direction IX-IX in Fig. 7.
Figure 10 is the structural schematic diagram of the first gasket in Fig. 2.
Figure 11 is the schematic cross-section in the direction XI-XI in Fig. 4.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with Attached drawing and preferred embodiment, it is as follows that the present invention is described in detail.
Fig. 2 is the decomposition texture schematic diagram of exhaust gas bypass device provided by the invention, and Fig. 3 is by exhaust gas provided by the invention The assembly structure diagram of exchange device, Fig. 4 are the schematic top plan view of exhaust gas bypass device shown in Fig. 3, and Fig. 5 is provided by the invention Exhaust gas bypass device is as shown in Figures 2 to 5 loaded on the structural schematic diagram in turbocharger, exhaust gas bypass dress provided by the invention It sets for turbocharger comprising swing arm sleeve 20, Rocker arm assembly 30, vent valve 40 and vent valve linking arm 50.Rocker arm Axle sleeve 20 is fixed on the shell 60 of turbocharger by interference fit, and the shell 60 of turbocharger is equipped with perforation (figure Do not show), swing arm sleeve 20 is pressed into the perforation, to be interference fitted with shell 60.Rocker arm assembly 30 is including rocker arm shaft 31 and admittedly Due to the rocking handle 32 of 31 one end of rocker arm shaft, rocking handle 32 is equipped with fixation hole 321, and rocker arm shaft 31 should close to the insertion of one end of rocking handle 32 After in fixation hole 321, rocker arm shaft 31 and rocking handle 32 are fixed together by welding or interference fit.Rocking handle 32 and actuator Distance rod (not shown) is connected.Rocker arm shaft 31 is arranged in swing arm sleeve 20, and rocker arm shaft 31 can rotate in swing arm sleeve 20. The length of rocker arm shaft 31 is greater than the length of swing arm sleeve 20, and rocker arm shaft 31 reveals after passing through swing arm sleeve 20 far from one end of rocking handle 32 Out, and by vent valve linking arm 50 it is connected with vent valve 40, i.e. the bared end that is connected to rocker arm shaft 31 of vent valve linking arm 50 Between vent valve 40, one is fixed on by welding or interference fit between vent valve linking arm 50 and the bared end of rocker arm shaft 31 It rises, in this way, rocking handle 32 and vent valve linking arm 50 are connected to the both ends of rocker arm shaft 31.
Vent valve 40 is set to the exhaust ports (not shown) on the shell 60 of turbocharger.The middle part of vent valve 40 is upward Equipped with connection pin shaft 41, one end of vent valve linking arm 50 connect with the bared end of rocker arm shaft 31, vent valve linking arm 50 it is another One end is connected on connection pin shaft 41.Specifically, vent valve linking arm 50 is equipped with connecting hole 51 close to one end of vent valve 40, even After outbound axis 41 protrudes into connecting hole 51, by 42 riveting of a fixinig plate on connection pin shaft 41, vent valve is connected by fixinig plate 42 The one end for connecing arm 50 is fixed between fixinig plate 42 and vent valve 40.
When turbocharger needs that exhaust gas is discharged, the distance rod of actuator pushes rocking handle 32, drives rocker arm by rocking handle 32 Axis 31 rotates in swing arm sleeve 20, while rocker arm shaft 31 drives vent valve 40 mobile by vent valve linking arm 50, then makes The vent valve 40 being originally pressed together on exhaust outlet leaves exhaust outlet, realizes the unlatching of exhaust gas bypass device and the discharge of exhaust gas.
Fig. 6 is the schematic cross-section in the direction VI-VI in Fig. 4, and Fig. 7 is the structural schematic diagram of swing arm sleeve in Fig. 2, and Fig. 8 is The structural schematic diagram of swing arm sleeve end face in Fig. 2, Fig. 9 are the schematic cross-section in the direction IX-IX in Fig. 7, as shown in Figures 6 to 9, Circumferencial direction on the inner surface of swing arm sleeve 20 along swing arm sleeve 20 is formed with multiple stable chutes 21 in circular ring shape, these The stable chute 21 of circular ring shape is distributed on the inner surface of swing arm sleeve 20 spaced reciprocally along the axial direction of swing arm sleeve 20.At this In embodiment, when air-flow enters swing arm sleeve 20 from the gap between rocker arm shaft 31 and swing arm sleeve 20, due in rocker arm shaft The inner surface of set 20 is provided with stable chute 21, and air-flow can diffuse into stable chute 21, forms air-flow current stabilization, reduces air-flow stream Dynamic speed, and the setting of stable chute 21 can also make fraction form counter motion, reduce the outside uniaxial pressure of gas, It reduces exhaust gas and passes through caused 31 axial movement value of rocker arm shaft when swing arm sleeve 20, so as to avoid the axial movement of rocker arm shaft 31 Collision is generated between the end face of swing arm sleeve 20, reduces abnormal sound and the vibration of exhaust gas bypass device.
For the active force being further reduced between air-flow and rocker arm shaft 31 and rocking handle 32, as shown in FIG. 6 and 7, in rocker arm Axle sleeve 20 is also formed with diversion groove 22, inner surface of the diversion groove 22 from swing arm sleeve 20 on the end face of 32 side of rocking handle Side extends to the outer surface side of swing arm sleeve 20, i.e. one end of diversion groove 22 is connected to the inner surface of swing arm sleeve 20, The other end is connected to the outer surface of swing arm sleeve 20.When there is the air-flow of part to overflow between rocker arm shaft 31 and swing arm sleeve 20 Afterwards, it while gas is axially outwardly spread, can be first diffused from the end face of swing arm sleeve 20 along diversion groove 22, Axial exhaust gas pressure is also reduced to a certain extent, is reduced exhaust gas to the axial impact of rocker arm shaft 31, is further avoided and shake Collision between the axial movement of arm axle 31 and the end face of swing arm sleeve 20, further reduce exhaust gas bypass device abnormal sound and Vibration.In the present embodiment, diversion groove 22 is on the end face of swing arm sleeve 20 from the inner surface side of swing arm sleeve 20 to shaking The outer surface side of arm axle set 20 is extended continuously in the shape of a spiral.In other embodiments, diversion groove 22 is in swing arm sleeve 20 It is also possible on end face along the radial from the inner surface side of swing arm sleeve 20 to the appearance of swing arm sleeve 20 of swing arm sleeve 20 Face side extends straight, moreover, the diversion groove 22 being arranged on the end face of swing arm sleeve 20 at this time can be multiple.
Figure 10 is the structural schematic diagram of the first gasket in Fig. 2, as shown in Fig. 5 and Figure 10, in order to be further reduced rocking handle 32 Collision between the end face of swing arm sleeve 20 is equipped with the first gasket 71 between the end face and rocking handle 32 of swing arm sleeve 20, the One gasket 71 is set on rocker arm shaft 31 and is folded between the end face of swing arm sleeve 20 and rocking handle 32.When rocker arm shaft 31 is arranged in When on swing arm sleeve 20, the first gasket 71 is in impaction state.When rocker arm shaft 31 and rocking handle 32 by air-flow pushing away to outside volute When motive force of the distance rod of power or actuator into volute, the first gasket 71 can reduce rocking handle 32 and swing arm sleeve 20 it Between collide, reduce exhaust gas bypass mechanism abnormal sound and vibration.
Figure 11 is the schematic cross-section in the direction XI-XI in Fig. 4, as shown in figure 11, on the outer peripheral edge position of vent valve 40 Two anti-rotational limited posts 43 are additionally provided with, connection pin shaft 41 is located between two anti-rotational limited posts 43, two anti-rotational limits Column 43 is located at the two sides of vent valve linking arm 50.Go out when air-flow from exhaust outlet causes to deflate because of the fluctuation of pressure at expulsion When valve 40 rotates, due to the position-limiting action between two anti-rotational limited posts 43 and vent valve linking arm 50, anti-rotational limited post 43 can prevent vent valve 40 from rotating in any direction, so as to avoid vent valve 40 due to the pedestal of rotopeening volute The abnormal sound of generation.
In order to prevent vent valve linking arm 50 and connection pin shaft 41 and fixinig plate 42 between collision, fixinig plate 42 with put The second gasket 72 is additionally provided between air valve linking arm 50, the second gasket 72 is set on connection pin shaft 41 and is folded in fixinig plate 42 Between vent valve linking arm 50.When vent valve linking arm 50 is fixed between fixinig plate 42 and vent valve 40 by fixinig plate 42 When, the second gasket 72 is in impaction state.When air-flow pushes vent valve 40 to be axially moved along connection pin shaft 41, the second gasket 72 The active force between vent valve linking arm 50 and vent valve 40 can be buffered, is reduced between vent valve 40 and vent valve linking arm 50 Collision, reduce exhaust gas bypass mechanism abnormal sound and vibration.
When the work of exhaust gas bypass device, actuator distance rod drives rocking handle 32 to rotate around 31 axis of rocker arm shaft, then makes Vent valve 40 leaves exhaust outlet, and air-flow is flowed out from exhaust outlet, and a part of air-flow can be along between rocker arm shaft 31 and swing arm sleeve 20 Gap outflow because swing arm sleeve 20 in be equipped with stable chute 21, the speed into the air-flow in above-mentioned gap can be in current stabilization It is gradually decreased under the action of slot 21, so just reduces the active force between air-flow and rocker arm shaft 31 and rocking handle 32, reduce and shake Abnormal sound and vibration between arm axle 31 and rocking handle 32 and swing arm sleeve 20.When air-flow is flowed out from swing arm sleeve 20, from rocker arm shaft Diversion groove 22 between the end face and rocking handle 32 of set 20 guides outflow, again reduces the effect between air-flow and rocking handle 32 Power.The setting of first gasket 71 can prevent to collide between the end face of rocking handle 32 and swing arm sleeve 20.When air-flow promotion is put When air valve 40 rotates, anti-rotational limited post 43 will be limited with vent valve linking arm 50 and be contacted, and then prevent vent valve 40 Continue to rotate.When gas push vent valve 40 is axially moved along connection pin shaft 41, the second gasket 72 can prevent vent valve 40 It collides between vent valve linking arm 50, reduces the abnormal sound between vent valve 40 and vent valve linking arm 50 and vibration. Therefore, exhaust gas bypass device provided by the invention can reduce exhaust gas bypass dress during exhaust gas is discharged in exhaust gas bypass device Abnormal sound and the vibration for setting generation improve the performance of engine and the comfort of automobile.
The present invention also provides a kind of turbocharger, including exhaust gas bypass device as described above.About the turbocharging The other structures of device may refer to the structure of existing turbocharger, and details are not described herein.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.

Claims (8)

1.一种废气旁通装置,包括摇臂轴(31)、摇臂轴套(20)、放气阀连接臂(50)及放气阀(40),所述摇臂轴(31)穿设于所述摇臂轴套(20)内并可在所述摇臂轴套(20)内转动,所述放气阀(40)通过所述放气阀连接臂(50)连接于所述摇臂轴(31)上,其特征在于:所述摇臂轴套(20)的内表面上形成有多个稳流槽(21),所述多个稳流槽(21)沿着所述摇臂轴套(20)的轴向相互间隔地分布在所述摇臂轴套(20)的内表面上,所述废气旁通装置还包括摇柄(32),所述摇柄(32)和所述放气阀连接臂(50)分别连接于所述摇臂轴(31)的两端,所述摇臂轴套(20)靠近所述摇柄(32)一侧的端面上形成有导流凹槽(22),所述导流凹槽(22)从所述摇臂轴套(20)的内表面一侧延伸至所述摇臂轴套(20)的外表面一侧,所述放气阀(40)上设有一连接销轴(41),所述放气阀连接臂(50)靠近所述放气阀(40)的一端上设有连接孔(51),所述连接销轴(41)伸入所述连接孔(51)后,通过一固定片(42)将所述放气阀连接臂(50)固定至所述固定片(42)及所述放气阀(40)之间,所述连接销轴(41)上设置有容置槽,所述连接孔(51)的孔壁卡合于所述容置槽内,所述放气阀(40)的外周缘位置上还设有两个防旋转限位柱(43),所述连接销轴(41)位于所述两个防旋转限位柱(43)之间,所述两个防旋转限位柱(43)分别位于所述放气阀连接臂(50)的两侧,所述放气阀(40)的底面为平面。1. A waste gas bypass device, comprising a rocker shaft (31), a rocker shaft sleeve (20), a bleed valve connecting arm (50) and a bleed valve (40), the rocker shaft (31) passing through The air release valve (40) is connected to the air release valve (40) through the air release valve connecting arm (50). The rocker arm shaft (31) is characterized in that: a plurality of stabilizing grooves (21) are formed on the inner surface of the rocker shaft sleeve (20), and the plurality of stabilizing grooves (21) are along the The axial directions of the rocker arm bushings (20) are distributed on the inner surface of the rocker arm bushings (20) at a distance from each other, and the wastegate device further comprises a rocker handle (32), the rocker handle (32) The air release valve connecting arm (50) is respectively connected to both ends of the rocker arm shaft (31), and the end face of the rocker arm shaft sleeve (20) close to the side of the rocker handle (32) is formed with A guide groove (22), the guide groove (22) extends from the inner surface side of the rocker arm sleeve (20) to the outer surface side of the rocker arm sleeve (20), so The air release valve (40) is provided with a connecting pin (41), and the end of the air release valve connecting arm (50) close to the air release valve (40) is provided with a connection hole (51). After the pin shaft (41) extends into the connecting hole (51), the air release valve connecting arm (50) is fixed to the fixing plate (42) and the air release valve (42) through a fixing piece (42). 40), an accommodating groove is provided on the connecting pin (41), the hole wall of the connecting hole (51) is engaged in the accommodating groove, and the outer circumference of the air release valve (40) is There are also two anti-rotation limit posts (43) on the edge, and the connecting pin shaft (41) is located between the two anti-rotation limit posts (43). (43) are respectively located on both sides of the air release valve connecting arm (50), and the bottom surface of the air release valve (40) is a plane. 2.根据权利要求1所述的废气旁通装置,其特征在于:每一个所述稳流槽(21)在所述摇臂轴套(20)的圆周方向上呈圆环形。2 . The wastegate device according to claim 1 , wherein each of the steady flow grooves ( 21 ) is annular in the circumferential direction of the rocker arm bushing ( 20 ). 3 . 3.根据权利要求1所述的废气旁通装置,其特征在于:所述导流凹槽(22)在所述摇臂轴套(20)的端面上从所述摇臂轴套(20)的内表面一侧至所述摇臂轴套(20)的外表面一侧呈螺旋状连续延伸。3 . The wastegate device according to claim 1 , wherein the guide groove ( 22 ) extends from the rocker arm bush ( 20 ) on the end face of the rocker arm bush ( 20 ). 4 . The inner surface side of the rocker arm sleeve (20) extends continuously in a spiral shape. 4.根据权利要求1所述的废气旁通装置,其特征在于:所述导流凹槽(22)在所述摇臂轴套(20)的端面上沿着所述摇臂轴套(20)的径向方向从所述摇臂轴套(20)的内表面一侧至所述摇臂轴套(20)的外表面一侧呈直线延伸。4. The wastegate device according to claim 1, wherein the guide groove (22) is along the rocker arm bushing (20) on the end face of the rocker arm bushing (20). ) in a straight line extending from the inner surface side of the rocker arm bushing (20) to the outer surface side of the rocker arm bushing (20). 5.根据权利要求1所述的废气旁通装置,其特征在于:所述摇臂轴套(20)的端面与所述摇柄(32)之间设有第一垫片(71),所述第一垫片(71)套设在所述摇臂轴(31)上并夹设在所述摇臂轴套(20)的端面与所述摇柄(32)之间。5. The wastegate device according to claim 1, characterized in that: a first gasket (71) is provided between the end face of the rocker arm sleeve (20) and the rocker handle (32), so The first gasket (71) is sleeved on the rocker arm shaft (31) and sandwiched between the end face of the rocker arm shaft sleeve (20) and the rocker handle (32). 6.根据权利要求1至5任一项所述的废气旁通装置,其特征在于:所述放气阀连接臂(50)的一端与所述摇臂轴(31)连接,所述放气阀连接臂(50)的另一端连接于所述连接销轴(41)上。6. The wastegate device according to any one of claims 1 to 5, characterized in that: one end of the air release valve connecting arm (50) is connected to the rocker shaft (31), and the air release valve is connected to the rocker shaft (31). The other end of the valve connecting arm (50) is connected to the connecting pin shaft (41). 7.根据权利要求6所述的废气旁通装置,其特征在于:所述固定片(42)与所述放气阀连接臂(50)之间设有第二垫片(72),所述第二垫片(72)套设在所述连接销轴(41)上并夹设在所述固定片(42)与所述放气阀连接臂(50)之间。7 . The wastegate device according to claim 6 , wherein a second gasket ( 72 ) is arranged between the fixing plate ( 42 ) and the air release valve connecting arm ( 50 ). 8 . The second gasket (72) is sleeved on the connecting pin shaft (41) and sandwiched between the fixing plate (42) and the air release valve connecting arm (50). 8.一种涡轮增压器,包括废气旁通装置,其特征在于:所述废气旁通装置为权利要求1至7任意一项所述的废气旁通装置。8 . A turbocharger, comprising a wastegate device, wherein the wastegate device is the wastegate device according to any one of claims 1 to 7 .
CN201510268911.7A 2015-05-22 2015-05-22 Wastegate and turbocharger having the same Active CN106285919B (en)

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