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Exhaust gas circulation (EGR) based hybrid stratified charge system and method of gasoline engine

A technology of exhaust gas recirculation and stratified air intake, applied in exhaust gas recirculation, charging system, mechanical equipment, etc., can solve problems such as inability to remove NOx, and achieve the effect of ensuring overall performance, ensuring reliability, and reducing NOx emissions

Inactive Publication Date: 2013-09-11
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lean-burn technology of gasoline engines can effectively reduce the emission of gasoline engine exhaust pollutants while reducing fuel consumption. NOx removal from air

Method used

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  • Exhaust gas circulation (EGR) based hybrid stratified charge system and method of gasoline engine
  • Exhaust gas circulation (EGR) based hybrid stratified charge system and method of gasoline engine
  • Exhaust gas circulation (EGR) based hybrid stratified charge system and method of gasoline engine

Examples

Experimental program
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Embodiment

[0021] control Figure 1-7 , gasoline engine hybrid stratified intake system with exhaust gas recirculation (EGR), including: engine intake manifold, EGR manifold 2 connected to engine exhaust pipe 1, 1 throttle valve installed on EGR manifold 2 And one EGR valve 3, the throttle valve is connected with the engine throttle valve 5 through the linkage mechanism, one vacuum air intake port installed on the engine intake manifold, one cooling water temperature control switch installed on the engine block water jacket, The vacuum tube connecting the vacuum air inlet, the cooling water temperature control switch and the vacuum hole of the EGR valve 3, the cylinder head 17, the intake valve 18, the intake passage 19 located in the cylinder head 17, the intake passage 19 and the engine intake air The manifold is connected, and the tumble flow generating device installed between the intake manifold and the air inlet; the tumble flow generating device is arranged on a section of the int...

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Abstract

The invention relates to an exhaust gas circulation (EGR) based hybrid stratified charge system and method of a gasoline engine. The system comprises an engine intake manifold, an EGR header, a throttle valve, an EGR valve, a vacuum gas intake, a cooling water temperature control switch and a tumble generating device, wherein the EGR header is connected on an exhaust pipe of an engine; the throttle valve and the EGR valve are installed on the EGR header; the vacuum gas intake is installed on the engine intake manifold; the cooling water temperature control switch is installed on an engine block water jacket; and the tumble generating device is installed between the intake manifold and an intake duct. The system and the method have the following beneficial effects: under the condition of appropriate EGR quantity, the power of the engine can be increased by 5-7% and the specific fuel consumption can be reduced by 5-8%.

Description

technical field [0001] The present invention relates to an engine-related device and method for adding a small amount of secondary fuel to fuel-air mixture, and further relates to a mixed stratified air intake system and method for a gasoline engine equipped with exhaust gas recirculation (EGR). technical background [0002] In recent years, automobile exhaust pollution and CO 2 The damage to the earth's ecological environment and the greenhouse effect caused by emissions are becoming more and more serious. Cars with good pollution discharge and low fuel consumption rate can not only alleviate the impact of climate warming and ecological environment balance damage caused by the global greenhouse effect, but also save fuel, have good economy and enhance market competitiveness. Some advanced car technologies are gradually emerging And it is becoming more and more mature. Among them, the gasoline engine lean-burn technology is an advanced energy-saving and emission-reduction t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M25/07F02D21/08F02M26/42
CPCY02T10/121Y02T10/12
Inventor 李志军陈韶舒贾旭岩张瀛毕凤荣
Owner TIANJIN UNIV