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Exhaust bypass device for protecting engine turbocharger

A turbocharger and engine technology, applied in combustion engines, machines/engines, internal combustion piston engines, etc., can solve the problems of accelerating blades, aging, and poor operation of the mechanism, and achieve the effect of prolonging service life and simple structure

Pending Publication Date: 2019-03-22
JIANGXI TENHLE POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the engine is in cold start, low idle speed, working and shutting down conditions, the particles will impact the turbine blades, accelerate the aging and damage of the blades, and also block the gap of the turbocharger bypass valve mechanism, resulting in poor operation of the mechanism. Therefore, the presence of particles directly affects the performance of the turbocharger

Method used

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  • Exhaust bypass device for protecting engine turbocharger
  • Exhaust bypass device for protecting engine turbocharger
  • Exhaust bypass device for protecting engine turbocharger

Examples

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Embodiment Construction

[0022] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. Detailed instructions:

[0023] as attached figure 1 As shown, the present invention is a waste gas bypass device for protecting the turbocharger of an engine. The waste gas bypass device for protecting the turbocharger of an engine includes a device housing 1 on which a main channel 2 is arranged. One end of the main channel 2 on the device housing 1 communicates with the exhaust manifold through the pipeline I, the other end of the main channel 2 on the device housing 1 communicates with the supercharger through the pipeline II, and the inner wall of the main channel 2 is provided with a bypass pipeline 3. The bypass pipe 3 is in communicat...

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Abstract

The invention provides an exhaust bypass device for protecting an engine turbocharger and belongs to the technical field of engine turbocharger parts. One end of a main channel (2) of a device shell body (1) of the exhaust bypass device for protecting the engine turbocharger communicates with an exhaust manifold, and the other end of the main channel (2) communicates with a supercharger; a by-passpipeline (3) communicates with an exhaust tail pipe; a driving valve (5) is arranged on an executing rod I (4) in the main channel (2); a driven valve (7) is arranged on an executing rod II (6) in the by-pass pipeline (3); the executing rod I (4) is connected with a driving motor I (8); and the executing rod II (6) is connected with a driving motor II (9). According to the exhaust bypass device for protecting the engine turbocharger, the structure is simple, circulating paths for exhaust gas entering the turbocharger can be switched conveniently and reliably in different working conditions, the supercharger system can be protected from being affected by particle impact, and the service life of the supercharger is prolonged.

Description

technical field [0001] The invention belongs to the technical field of engine turbocharger components, and more specifically relates to a waste gas bypass device for protecting the engine turbocharger. Background technique [0002] Faced with increasingly stringent emission requirements, engines are gradually using in-cylinder direct injection technology and turbocharging technology. After the adoption of in-cylinder direct injection technology and turbocharging technology, the engine will produce a large number of particles when it is cold start, low idle speed, and working to stop. The turbocharger is a precision component, and its turbine blades, turbocharger bypass valves are in direct contact with the exhaust gas. When the engine is in cold start, low idle speed, and work-to-stop conditions, the particles will impact the turbine blades, accelerate the aging and damage of the blades, and also block the gap of the turbocharger bypass valve mechanism, resulting in poor op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/18
CPCF02B37/186Y02T10/12
Inventor 张宝秀张千周徐阳光何一太
Owner JIANGXI TENHLE POWER CO LTD
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