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Control mechanism for waste gas bypass valve of turbocharger

A wastegate valve, turbocharger technology, applied in the direction of machines/engines, mechanical equipment, combustion engines, etc., can solve the problems of poor reliability, high cost, complex structure, etc., and achieve work stability and reliability Improve, enhance the strength, avoid the effect of scalding people

Active Publication Date: 2015-05-20
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bypass valve controlled by the electromagnetic coil has the disadvantages of high cost and complex structure. At the same time, the electromagnetic control components are exposed to high temperature working environment for a long time, and there are also disadvantages of poor reliability.

Method used

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  • Control mechanism for waste gas bypass valve of turbocharger

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Embodiment Construction

[0017] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0018] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0019] like figure 1 As shown, the control mechanism of the wastegate valve of the turbocharger according to the specific embodiment of the present invention is arranged between the oil pump and the wastegate valve of the turbocharger, and the valve plate 3 of the wastegate valve can move up and down.

[0020] like figure 1 As shown, the throttle rod 11 is swingable, and one end thereof is detachably connected to the thro...

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Abstract

The invention discloses a control mechanism for a waste gas bypass valve of a turbocharger. The control mechanism is arranged between an oil pump and the waste gas bypass valve of the turbocharger. The control mechanism comprises an accelerator pull rod, a movable baffle plate and a guide mechanism, one end of the accelerator pull rod is detachably connected at an accelerator of an oil pump and swings along with increase and decrease of the accelerator, the movable baffle plate can move on part of moving routes of the accelerator pull rod along with the accelerator pull rod, one end of the guide mechanism is fixed on the movable baffle plate, and the other end of the guide mechanism is fixed on a valve plate of the waste gas bypass valve. An air release judging mechanism is an accelerator position of the oil pump and far away from a high-temperature working environment, so that parts are less affected by the environment, air release conditions are determined according to relative positions, hidden danger of air release pressure change caused by elastic force change of a spring or gas leakage of a membrane is avoided, and working stability and reliability are improved.

Description

technical field [0001] The invention relates to the field of engines, in particular to a control mechanism for a wastegate valve of a turbocharger. Background technique [0002] Since the turbocharger ratio of a diesel engine is proportional to the square of the speed of the turbocharger, since the diesel engine has a higher boost pressure at low speeds, and the supercharger does not overspeed at high speeds, the supercharger pressure limit of the turbocharger must be checked. adjust. The most commonly used method at present is to bleed off a part of the exhaust gas before entering the turbine by opening the wastegate valve of the turbocharger, so that it enters the atmosphere or is discharged into the exhaust pipe behind the scroll to adjust the power of the turbine. [0003] At present, the opening of the wastegate valve of the wastegate turbocharger of the marine diesel engine usually adopts the method of automatic control of the supercharging pressure or the control met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/18
CPCY02T10/12
Inventor 陆寿域李玉贺任全水刘攀
Owner GUANGXI YUCHAI MASCH CO LTD
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