Exhaust recirculating system controlled by exhaust pressure

A recirculation system and exhaust pressure technology, applied in the direction of exhaust gas recirculation, charging system, adding non-fuel substances to fuel, etc., can solve the problems of complex control system and achieve the effect of reasonable design and simple structure

Inactive Publication Date: 2012-07-11
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] After searching the existing technical literature, it was found that Chinese patent number ZL200410063439.5, patent name: electronic exhaust gas recirculation gas control device, this patent technology provides A device for controlling the exhaust gas recircul

Method used

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  • Exhaust recirculating system controlled by exhaust pressure
  • Exhaust recirculating system controlled by exhaust pressure
  • Exhaust recirculating system controlled by exhaust pressure

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Embodiment

[0013] Such as figure 1 and figure 2 As shown, the present invention includes: intake pipe 1, compressor 2, connecting shaft 3, compressor outlet pipe 4, intercooler 5, intake manifold 6, engine 7, exhaust manifold 8, turbine 9, exhaust pipe 10 , first connecting pipe 11, second connecting pipe 12, volume chamber 13, volume chamber upper wall 14, volume chamber lower wall 15, volume chamber left wall 16, volume chamber right wall 17, volume chamber front wall 18, volume chamber rear Wall surface 19, elastic member 20, mobile body 21 and the 3rd connecting pipe 22, the air outlet of inlet pipe 1 is connected with the air inlet of compressor 2, the air outlet of compressor 2 is connected with the air inlet of compressor outlet pipe 4 The air outlet of the compressor outlet pipe 4 is connected with the air inlet of the intercooler 5, the air outlet of the intercooler 5 is connected with the air inlet of the intake manifold 6, and the air outlet of the intake manifold 6 is conne...

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Abstract

An exhaust recirculating system controlled by exhaust pressure belongs to the technical field of internal combustion engines and comprises a gas inlet pipe, an engine, an exhaust pipe, a gas compressor, a turbine, a connecting pipe, a cavity, a movable part and an elastic component. A third connecting pipe is mounted between a main exhaust pipe and the upper wall surface of the cavity, the cross section of the cavity is rectangular, and the movable part mounted in the cavity hermetically contacts with the inner wall surface of the cavity and is connected with the lower wall surface of the cavity through the elastic component. When the engine is in a medium-speed running state, the movable part moves upwards in the cavity, the exhaust recirculating rate is higher, exhaust temperature is lower, and the integral performance of the engine is excellent. When the engine is in a high-speed running state, the movable part moves downwards in the cavity, the exhaust recirculating rate is lower, the dynamic property of the engine is better, and the integral performance of the engine is excellent. The exhaust recirculating system controlled by exhaust pressure is reasonable in design and simple in structure and applicable to exhaust recirculating systems with turbochargers.

Description

technical field [0001] The invention relates to an exhaust gas recirculation system in the field of internal combustion engines, in particular to an exhaust gas recirculation system controlled by exhaust pressure with a turbocharger. Background technique [0002] Harmful emissions from engines are a major source of air pollution. With the increasing importance of environmental protection, the goal of reducing harmful emissions from engines has become an important direction for engine development in the world today. With the world's consumption of petroleum products increasing year by year, international oil prices remain high, and the economy of diesel vehicles is becoming more and more prominent, which makes diesel engines occupy an increasingly important position in vehicle power. Therefore, it is the primary task of diesel engine designers to carry out research on the control methods of harmful emissions from diesel engines. Exhaust gas recirculation system is to send a ...

Claims

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Application Information

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IPC IPC(8): F02B47/08F02M25/07F02M26/04
CPCY02T10/121Y02T10/12
Inventor 石磊邓康耀崔毅田中旭
Owner SHANGHAI JIAO TONG UNIV
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