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Compact EGR (exhaust gas recirculation) channel structure

A channel-structured and compact technology, applied in the field of EGR system, can solve the problems of high manufacturing cost, limited space layout, and difficulty in achieving the balance of multi-cylinder EGR intake rate, etc., and achieve a good manufacturing process and a balanced exhaust gas volume. Effect

Inactive Publication Date: 2012-07-25
CHERY AUTOMOBILE CO LTD
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Problems solved by technology

[0004] The present invention designs a compact EGR channel structure, which solves the technical problem that existing EGR systems mostly use complex pipeline systems or casting pipelines, which have high manufacturing costs, limited space layout, and difficulty in multi-cylinder Balance of EGR intake rate

Method used

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  • Compact EGR (exhaust gas recirculation) channel structure
  • Compact EGR (exhaust gas recirculation) channel structure
  • Compact EGR (exhaust gas recirculation) channel structure

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Embodiment Construction

[0025] Combine below Figure 1 to Figure 5 , the present invention is further described:

[0026] Such as figure 1 As shown, the EGR passage structure 1 includes an EGR intake hole 4 and a plurality of EGR outlet holes 3, and the plurality of EGR outlet holes 3 respectively enter each cylinder body through the engine intake passage, and realize the balance of EGR exhaust gas entering each cylinder .

[0027] Mounting bolt holes 2 are provided on the EGR channel structure 1 , and the EGR channel structure 1 is fixed on the engine cylinder head through the cooperation of the bolts and the mounting bolt holes 2 .

[0028] Such as figure 2 As shown, when the EGR passage structure 1 is formed by machining or casting, a plurality of first bowl-shaped plugs 5 and a plurality of second bowl-shaped plugs 6 are formed on the intake passage 8 and the outlet passage 7 . The first bowl-shaped plug 5 and the second bowl-shaped plug 6 are plugs or steel balls.

[0029] Such as image ...

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Abstract

The invention relates to a compact EGR (exhaust gas recirculation) channel structure, which is characterized in that the EGR channel structure is arranged on an engine cylinder cover, and leads waste gas into an engine gas inlet channel in a balanced manner. The compact EGR channel structure is a compact column structure, accordingly can be simply and conveniently mounted on the engine cylinder cover, is applicable to being arranged in a narrow and limited space, and has a good manufacturing process.

Description

technical field [0001] The invention relates to an EGR system of an engine, in particular to a compact EGR channel structure. Background technique [0002] As the international community pays more and more attention to environmental protection and energy utilization, vehicle engine emission regulations are increasingly stringent. Therefore, adopting more advanced engine technology to reduce emissions and CO2 emissions has become an important means for automobile and internal combustion engine manufacturers. Among them, EGR (Exhaust Gas Recirculation) technology has become an effective means to reduce emissions and fuel consumption, and is increasingly used in vehicle engines. [0003] The vehicle EGR system structure mainly includes exhaust gas passage, EGR control valve and exhaust gas cooling passage. At present, EGR systems on the market mostly use complex piping systems or casting pipes to introduce exhaust gas into cylinder head air passages or intake manifolds to ach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/07F02M26/13
CPCY02T10/121Y02T10/12
Inventor 杨国玺慕金华雷春青
Owner CHERY AUTOMOBILE CO LTD
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