CN214499231U

CN214499231U - Turbocharger

Info

Publication number: CN214499231U
Application number: CN202120636434.6U
Authority: CN
Inventors: 孙云龙; 彭文; 陈良; 吴广权
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-10-26
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses engine technical field especially relates to a turbocharger, and this turbocharger includes: the exhaust valve is arranged in the waste gas bypass channel; the execution component is used for driving the air release valve to rotate so as to open or close the waste gas bypass channel. The utility model discloses an among the turbo charger, the bleed valve sets up in the exhaust gas bypass passageway, thereby the bleed valve rotates and opens or close exhaust gas bypass passageway, exhaust gas bypass passageway can cause waste gas to the volute export, can directly blow waste gas to catalyzed center, reaches the effect of starting burning fast, and simultaneously, the bleed valve can not receive the exhaust pulse excitation and produce the valve and strike the sound.

Description

Turbocharger

Technical Field

The utility model discloses engine technical field especially relates to a turbocharger.

Background

With the popularization of turbocharging technology, the application of turbochargers in the engine development process is more and more extensive, and higher requirements on emissions in the cold start process of engines are required aiming at increasingly strict emission regulations. During cold start, the exhaust gas is required to reach the three-way catalyst as soon as possible to achieve early start-up and reduce emissions.

Among the prior art, be provided with the waste gas bypass passageway on the turbo charger, the exit of bypass passageway is provided with the waste gas valve board, actuating mechanism is used for driving the waste gas valve board and removes, open and close through the valve board and control the exhaust gas flow in the bypass passageway, above-mentioned design is restricted to arranging that reason opening angle is less, lead to bypass gas to blow to turbine housing wall, can't blow to the catalyst converter center, it is slow to lead to the catalyst converter to initiate to fire, it is relatively poor to cause cold-start emission, the waste gas valve board of above-mentioned scheme has nimble motion clearance simultaneously, when receiving exhaust pulse air current to erode, can bring the waste gas valve and shake and strike the noise.

Therefore, in the prior art, exhaust gas in the turbocharger cannot be blown to the center of the catalyst, and the noise is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the prior art, exhaust gas can't blow to the catalyst converter center among the turbo charger, and the great problem of noise.

In order to achieve the above object, the present invention provides a turbocharger, wherein the turbocharger includes:

the exhaust gas bypass device comprises a volute, wherein an exhaust gas bypass channel is arranged on the volute;

the air release valve is arranged in the waste gas bypass channel;

and the execution component is used for driving the air relief valve to rotate so as to open or close the waste gas bypass channel.

Optionally, the executing unit includes:

the transmission shaft is provided with the air release valve,

the actuator is in transmission connection with the transmission shaft and is used for driving the transmission shaft to rotate so as to drive the air release valve to rotate.

Optionally, the actuating unit further includes a rocker arm, and the actuator is in transmission connection with the transmission shaft through the rocker arm.

Optionally, the actuator includes a housing and a push rod, one end of the push rod is disposed in the housing, the other end of the push rod is connected to the rocker arm, and the push rod is used for driving the rocker arm to rotate.

Optionally, the actuating unit further includes a driving pin, a pin hole matched with the driving pin is formed in an end portion of the push rod, and the push rod is connected with the rocker arm through the driving pin.

Optionally, the turbocharger further comprises a bolt, a mounting groove for placing the air release valve is formed in the transmission shaft, and the air release valve is mounted in the mounting groove through the bolt.

Optionally, a shaft sleeve hole communicated with the waste gas bypass channel is formed in the volute, and one end of the transmission shaft penetrates through the shaft sleeve hole and is located in the waste gas bypass channel.

Optionally, the shape of the bleed valve matches the shape of the cross-section of the waste gas bypass passage.

Optionally, the purge valve is disposed at an air outlet of the waste gas bypass passage.

Optionally, the turbocharger further comprises a driving device and a controller, the driving device is used for driving the executing component, and the controller controls the driving device to be opened or closed.

Implement the utility model discloses an embodiment has following technological effect:

the utility model provides an among the turbo charger, the bleed valve sets up in the exhaust gas bypass passageway, thereby the bleed valve rotates and opens or close exhaust gas bypass passageway, exhaust gas bypass passageway can cause waste gas to the volute export, can directly blow waste gas to catalyzed center, reaches the effect of starting burning fast, and simultaneously, the bleed valve can not receive the exhaust pulse excitation and produce the valve and strike the sound.

Drawings

Fig. 1 is a schematic view of a turbocharger provided in embodiment 1 of the present invention from a first viewing angle;

fig. 2 is a schematic structural diagram of an actuator in a turbocharger according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a mounting groove in a turbocharger according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a turbocharger according to an embodiment of the present invention.

Description of reference numerals:

1. volute, 2, waste gas bypass passageway, 3, relief valve, 4, transmission shaft, 5, rocking arm, 6, driving pin, 7, executor, 31: bolt, 41: mounting groove, 71: push rod, 72: a housing.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses in, exhaust gas bypass passageway 2 runs through in whole volute 1, and exhaust gas bypass passageway's axis is parallel with the inlet channel's in the volute 1 direction of admitting air.

The various components involved in the various embodiments of the turbocharger of the present application are explained above to facilitate understanding by those skilled in the art. It should be noted that the components listed above are not necessarily included in the turbocharger of this application.

Referring to fig. 1, the turbocharger provided by the present application includes a volute 1, wherein an exhaust gas bypass passage 2 is provided on the volute 1, and the turbocharger further includes: the exhaust valve 3 is arranged in the waste gas bypass channel 2; the actuating component is used for driving the air release valve 3 to rotate, so that the waste gas bypass channel 2 is opened or closed. Specifically, the exhaust gas bypass passage 2 communicates with an outlet on the volute 1, the outlet is used for discharging exhaust gas, the air release valve 3 is arranged in the exhaust gas bypass passage 2, the air release valve 3 rotates to open or close the exhaust gas bypass passage 2, the exhaust gas bypass passage 2 can lead the exhaust gas to the outlet of the volute 1, the exhaust gas can be directly blown to a catalytic center, the effect of quick combustion starting is achieved, and meanwhile, the air release valve 3 cannot be excited by exhaust pulses to generate valve knocking sound.

As shown in fig. 2, further, the execution means includes: the gas release valve 3 is arranged on the transmission shaft 4, the actuator 7 is in transmission connection with the transmission shaft 4, and the actuator 7 is used for driving the transmission shaft 4 to rotate so as to drive the gas release valve 3 to rotate.

Specifically, the exhaust valve 3 is driven by the transmission shaft 4 to rotate around the axis direction of the transmission shaft 4, so that the exhaust gas bypass passage 2 is opened or closed.

Further, the actuating component also comprises a rocker arm 5, and the actuator 7 is in transmission connection with the transmission shaft 4 through the rocker arm 5.

Specifically, one end of the rocker arm 5 is fixedly connected with the transmission shaft 4, the other end of the rocker arm 5 is fixedly connected with the actuator 7, the rocker arm 5 is perpendicular to the moving directions of the transmission shaft 4 and the actuator 7, and the moment of the actuator 7 can be transmitted to the transmission shaft 4 through the rocker arm 5, so that the transmission shaft 4 drives the air release valve 3 to rotate, and the required opening angle is changed.

Further, the actuator 7 includes a housing 72 and a push rod 71, one end of the push rod 71 is disposed in the housing 72, the other end of the push rod 71 is connected to the rocker arm 5, and the push rod 71 is used for driving the rocker arm 5 to rotate.

Specifically, the push rod 71 can move along the axial direction thereof, so as to drive the rocker arm 5 to rotate, and the rocker arm 5 drives the transmission shaft 4 to rotate. The push rod 71 is fixedly connected with the rocker arm 5.

Further, the actuating component further comprises a transmission pin 6, a pin hole matched with the transmission pin 6 is formed in the end portion of the push rod 71, and the push rod 71 is connected with the rocker arm 5 through the transmission pin 6.

Specifically, the driving pin 6 is welded to the rocker arm 5, and the push rod 71 is fixed to the driving pin 6.

As shown in fig. 3, the turbocharger further includes a bolt 31, a mounting groove 41 for placing the bleeding valve 3 is provided on the transmission shaft 4, and the bleeding valve 3 is mounted in the mounting groove 41 through the bolt 31.

Specifically, mounting groove 41 is seted up in the axis department of transmission shaft 4, and runs through whole transmission shaft 4, is convenient for fix the stable in transmission shaft 4 of relief valve 3, sets up the mounting hole with mounting groove 41 intercommunication on transmission shaft 4, and the fixed part of bolt 31 is promptly, and the screw thread section passes the mounting hole of transmission shaft 4 one side earlier, passes mounting groove 41 again, is connected with the mounting hole of transmission shaft 4 opposite side at last, will relieve valve 3 and fix on transmission shaft 4.

It should be noted that the longitudinal section of the mounting groove 41 is rectangular, the longitudinal direction is the up-down direction in fig. 3, and the length of the mounting groove 41 is greater than the diameter of the relief valve 3. The mounting groove 41 may also be opened at the surface of the transmission shaft 4 as required.

Further, the volute 1 is provided with a shaft sleeve hole communicated with the waste gas bypass channel 2, and one end of the transmission shaft 4 penetrates through the shaft sleeve hole and is positioned in the waste gas bypass channel 2.

Specifically, the shaft sleeve hole is vertically communicated with the waste gas bypass channel 2, one end of the transmission shaft 4, which is provided with the air release valve 3, penetrates through the shaft sleeve hole, and the end, which is provided with the air release valve 3, is positioned in the waste gas bypass channel 2.

Further, the shape of the purge valve 3 matches the shape of the cross section of the waste gas bypass passage 2.

Specifically, the deflation valve 3 is a thin circular piece, the section of the deflation valve 3 is circular, the cross section of the waste gas bypass channel 2 is also circular, other shapes can be adopted, and the circular shape is more convenient to process compared with other shapes.

As shown in fig. 4, a purge valve 3 is further disposed at the air outlet of the waste gas bypass passage 2.

The air release valve 3 is arranged at the air outlet close to the waste gas bypass channel 2, so that waste gas can be discharged from the waste gas bypass channel 2 conveniently.

Further, the turbocharger further includes a driving device (not shown in the figure) for driving the actuator, and a controller for controlling the driving device to be turned on or off.

Specifically, the controller controls the driving device to be turned on or off or controls the turning-on time according to the angle required to be turned on. The utility model discloses in can let in gas in casing 72, drive arrangement can be for solenoid valve (not shown in the figure), and solenoid valve can set up on letting in gaseous pipeline, opens solenoid valve and can let in gas, and gaseous drive push rod 71 removes, and after closing the solenoid valve, push rod 71 can resume the normal position under the effect of reset part (like the spring).

The utility model provides a when turbocharger uses, bleed valve 3 passes through bolt 31 to be fixed on transmission shaft 4, and bleed valve 3 installs in waste gas bypass passageway 2. The transmission shaft 4 and the rocker arm 5 are welded into a whole, the rocker arm 5 and the transmission pin 6 are welded into a whole, the transmission pin 6 is connected with the push rod 71 of the actuator 7, the push rod 71 of the actuator 7 reciprocates to transmit torque to the transmission pin 6, so that the transmission shaft 4 rotates around the axis of the transmission shaft, the waste gas bypass channel 2 is opened at different angles and closed, and the purpose of adjusting the waste gas bypass flux is achieved. The waste gas bypass channel 2 leads the bypassed waste gas to the outlet of the volute 1, and the waste gas can directly blow the center of the three-way catalytic converter, so that the effect of quick start can be achieved during cold start. The performance of whole car emission can be improved, and noise reduction increases the travelling comfort.

To sum up, the utility model provides an among the turbo charger, the bleed valve sets up in the exhaust gas bypass passageway, thereby the bleed valve rotates and opens or close exhaust gas bypass passageway, exhaust gas bypass passageway can cause waste gas to the volute export, can directly blow waste gas to catalyzed center, reaches the effect of starting burning fast, and simultaneously, the bleed valve can not receive the exhaust pulse excitation and produce the valve and strike the sound.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, the terms "first", "second", and the like are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A turbocharger, characterized in that it comprises:

the air release valve is arranged in the waste gas bypass channel;

2. The turbocharger according to claim 1, wherein the actuating member comprises:

the transmission shaft is provided with the air release valve,

3. The turbocharger of claim 2, wherein the actuator member further comprises a rocker arm through which the actuator is drivingly connected to the drive shaft.

4. The turbocharger according to claim 3, wherein the actuator comprises a housing and a push rod, one end of the push rod is disposed in the housing, the other end of the push rod is connected to the rocker arm, and the push rod is used for driving the rocker arm to rotate.

5. The turbocharger according to claim 4, wherein the actuating member further comprises a driving pin, and the end of the push rod is provided with a pin hole matching with the driving pin, and the push rod is connected with the rocker arm through the driving pin.

6. The turbocharger according to claim 2, further comprising a bolt, wherein a mounting groove for placing the relief valve is formed in the transmission shaft, and the relief valve is mounted in the mounting groove through the bolt.

7. The turbocharger according to claim 2, wherein the volute is provided with a boss hole communicating with the exhaust bypass passage, and one end of the drive shaft passes through the boss hole and is located in the exhaust bypass passage.

8. The turbocharger of claim 1, wherein the shape of the bleed valve matches the shape of the exhaust bypass passage cross-section.

9. The turbocharger according to claim 1, wherein the bleed valve is provided at an air outlet of the waste gas bypass passage.

10. The turbocharger according to any one of claims 1 to 9, further comprising a driving device for driving the actuator, and a controller for controlling the driving device to open or close.