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Turbo-charged diesel engine auxiliary braking system

A diesel engine and auxiliary braking technology, applied in engine control, combustion engine, machine/engine, etc., can solve the problem that the braking performance cannot be further improved, cannot meet the needs of use, etc., to improve the engine auxiliary braking effect, improve The effect of engine auxiliary braking power and gas compression pressure increase

Inactive Publication Date: 2015-02-04
DONGFENG COMML VEHICLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a supercharged diesel engine auxiliary braking system to solve the problems that the existing supercharged diesel engine auxiliary braking system cannot further improve the braking performance and cannot meet higher use requirements.

Method used

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  • Turbo-charged diesel engine auxiliary braking system
  • Turbo-charged diesel engine auxiliary braking system

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] see figure 1 , Existing supercharged diesel engine vehicles are usually equipped with air filter 1, turbocharger 2, intercooler 10, gas consumption equipment 11 and air compressor 12. The air filter 1 is usually installed on the whole vehicle, and the turbocharger 2 is installed on the engine exhaust pipe. The air filter 1 is used to filter the air to ensure the air quality entering the compressor inlet of the turbocharger 2; The intercooler 10 is usually installed on the whole vehicle, and it is used to reduce the temperature of the air entering the engine cylinder block 8; the air compressor 12 is usually installed on the engine, and it is used to generate high-pressure gas and transmit it to the air consumption equipment 11 of the whole vehicle . The supercharged diesel engine auxiliary braking system includes an exhaust ...

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Abstract

The invention discloses a turbo-charged diesel engine auxiliary braking system. The turbo-charged diesel engine auxiliary braking system comprises an exhaust braking butterfly valve (4) and a braking device (5); the exhaust braking butterfly valve (4) is arranged on an exhaust pipe of an engine; the braking device (5) is arranged between the top of an engine cylinder head and an engine cover; the exhaust braking butterfly valve (4) and the braking device (5) are electrically connected with an engine ECU (electronic control unit) (3) respectively; an air bypass passage (13) is arranged between the outlet of an air compressor (12) and the inlet of an intercooler (10); the air bypass passage (13) is communicated with the outlet of the air compressor (12) and the inlet of the intercooler (10) respectively; a bypass-valve (14) is arranged on the air bypass passage (13) and is an electrically controlled valve; the electrically controlled valve is electrically connected with the engine ECU (3). The engine braking power is improved and the engine auxiliary braking effect is improved.

Description

technical field [0001] The invention relates to an engine auxiliary braking system, in particular to a supercharged diesel engine auxiliary braking system. Background technique [0002] Engine auxiliary braking refers to using the compression resistance, internal friction and intake and exhaust resistance generated by the engine compression stroke to brake the driving wheels. See the specific structure figure 2 , the existing supercharged diesel engine auxiliary braking system includes an exhaust brake butterfly valve 4 and a brake device 5, the exhaust brake butterfly valve 4 is an auxiliary brake functional part arranged on the engine exhaust pipe, and the exhaust brake is turned off. The dynamic butterfly valve 4 can increase the exhaust resistance of the engine, and can also provide braking force to the vehicle; the brake device 5 is an auxiliary braking functional part arranged between the engine cylinder head top and the engine cover, which provides the braking force...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D9/06F02D13/04F02B29/04
CPCY02T10/12
Inventor 陈伟建陈功军朱丹丹康丽丽
Owner DONGFENG COMML VEHICLE CO LTD
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