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Supercharger, engine and automobile

A supercharger and actuator technology, applied in the direction of machines/engines, engine components, combustion engines, etc., can solve problems such as different working conditions, easy to cause resonance, high-frequency vibration and noise of the control mechanism, etc., to achieve strong practicability, Elimination of resonance phenomenon, the effect of strong versatility

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  • Abstract
  • Description
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Problems solved by technology

[0004] Although the existing exhaust gas flow control mechanism can make the wastegate valve continuously adjustable through adjustable actuating pressure, fixed spring force and the weight of each component, the adjustable actuating pressure has fluctuations. Under normal circumstances, the frequency of the pressure fluctuation is close to the natural frequency of the spring and the pull rod of the actuator, which is easy to cause resonance and cause high-frequency vibration and noise in the control mechanism.
At present, the high-frequency vibration noise of the actuator is common in the supercharger using the mechanical positive pressure waste gas bypass control, and the working conditions of the noise are different

Method used

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  • Supercharger, engine and automobile
  • Supercharger, engine and automobile
  • Supercharger, engine and automobile

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Embodiment Construction

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0024] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0026] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[00...

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Abstract

The embodiment of the invention discloses a supercharger, an engine and an automobile. The supercharger comprises a waste gas flow control mechanism and is characterized in that the waste gas flow control mechanism comprises an actuator, the actuator is provided with a counterweight device, the counterweight device comprises at least one balancing weight which is provided with a clamping part, and the counterweight device is arranged on the actuator through the clamping parts. The actuator of the waste gas flow control mechanism is provided with the appropriate counterweight device, the resonance phenomenon of mechanical positive pressure type waste gas by-pass controlling can be eliminated, the noise of the actuator is controlled within the acceptable range of noise, vibration and harshness (NVH) of the finished automobile, universality is high, the period for solving the noise problem is short, and practicality is high.

Description

technical field [0001] The invention belongs to the field of automobiles, in particular to a supercharger, an engine and an automobile. Background technique [0002] In order to ensure the controllable boost pressure and engine performance of the exhaust gas turbocharged engine, the exhaust gas flow control mechanism is usually installed in the exhaust gas turbocharger to control the exhaust gas flow through the turbine, thereby controlling the turbine speed, and then controlling the boost pressure and engine performance. [0003] Among the exhaust gas flow control mechanisms, the mechanical positive pressure wastegate control is the most commonly used form. see figure 1 Shown is a schematic diagram of the existing exhaust gas flow control mechanism. Among them, the exhaust gas flow control mechanism is mainly composed of a wastegate valve 210 and an actuator 220. The wastegate valve 210 is installed on the supercharger. The actuator 220 is connected with the wastegate va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/18F01D25/04
CPCF01D25/04F02B37/186Y02T10/12
Inventor 焦春晖朱小平张敬义李晓娟余志文
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