low pressure egr system with turbine bypass

A technology of turbines and conduction systems, applied in charging systems, mechanical equipment, engine components, etc., can solve problems such as low oxygen content, inability to fully burn filter particle quality, etc., achieve rapid heating or extinguishing, and improve the effect of acoustic characteristics

Active Publication Date: 2022-06-07
TENNECO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since most gasoline engines run stoichiometrically, the oxygen content in the exhaust may be too low to adequately burn the mass of particles contained in the filter

Method used

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  • low pressure egr system with turbine bypass
  • low pressure egr system with turbine bypass
  • low pressure egr system with turbine bypass

Examples

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Embodiment Construction

[0029] on the basis of figure 1In all schematic diagrams of the exemplary embodiment to the figures, an exhaust gas conduction system 1 (EGR system) is disclosed, which is integrated with an exhaust manifold 2.1 and an intake manifold 2.2 and with an exhaust gas turbine 3 and charge air compressor 4 in the exhaust gas and charge air system of gasoline engine 2. The exhaust gas and charge air system has an exhaust line 2.3 which is connected to the exhaust manifold 2.1 of the gasoline engine 2, in which exhaust line 2.3 the turbine 3 is integrated. At the end of the exhaust line 2.3, the exhaust gas 7 leaves the exhaust gas system 1 and flows into an additional exhaust gas path not shown. In addition, the present invention also provides an intake line 2.4, which is connected to the intake manifold 2.2 of the gasoline engine 2, and the compressor 4 is integrated in the intake manifold 2.2. The intake line 2.4 is supplied with fresh air 8 via an intake system (not shown). In a...

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PUM

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Abstract

The invention relates to an exhaust gas conduction system (1) for a gasoline engine (2), comprising an exhaust line (2.3) connectable to an exhaust manifold (2.1) of said gasoline engine (2), connectable The intake line (2.4) to the intake manifold (2.2) of the gasoline engine (2), the charge air compressor (4) arranged in the intake line (2.4) and the exhaust A turbine (3) in an air line (2.3), wherein said exhaust line (2.3) comprises at least one bypass line (1.1) with a bypass throttle (1.4), said bypass line A road (1.1) branches off from the exhaust line (2.3) upstream of the turbine (3) and branches back to the exhaust pipe at an opening (1.8) downstream of the turbine (3) road (2.3); the exhaust gas conduction system (1) also includes at least one exhaust gas recirculation line (1.5) with an EGR throttle valve (1.3), and the exhaust gas recirculation line (1.5) leads to the intake line (2.4); wherein said exhaust gas recirculation line (1.5) branches off from said bypass line (1.1) at a branch (1.7), wherein said bypass throttle valve (1.4) is arranged at upstream of the branch (1.7) of the exhaust gas recirculation line (1.5); wherein exhaust gas is provided in the exhaust line (2.3) upstream of the opening (1.8) of the bypass line (1.1) valve (1.9).

Description

technical field [0001] The invention relates to an exhaust gas conduction system for a gasoline engine, comprising an exhaust line connectable to an exhaust manifold of the gasoline engine, an intake line connectable to an intake manifold of the gasoline engine , a charge air compressor arranged in the intake line and a turbine arranged in the exhaust line, wherein the exhaust line has at least one bypass line with a bypass throttle The bypass line is branched from the exhaust line upstream of the turbine, and is branched back to the exhaust line at an opening downstream of the turbine; At least one exhaust gas recirculation line of an EGR throttle valve, the exhaust gas recirculation line leading to the intake line, wherein the exhaust gas recirculation line branches off from the bypass line at a branch; wherein The bypass throttle valve is arranged upstream of the branch of the exhaust gas recirculation line; wherein a wastegate valve is provided in the exhaust gas line ups...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/18F02M26/05F02M26/07F02M26/15F02M26/23F02M26/14F01N3/021F02M26/35F02M26/42F02M26/06F01N3/20F01N3/031
CPCF01N3/021F01N3/031F01N3/2053F02B37/18F02M26/05F02M26/06F02M26/07F02M26/15F02M26/23F02M26/35F02M26/42F01N3/035F01N13/009Y02T10/12F01N3/101F01N3/20F02B47/08
Inventor 菲利普·克鲁兹齐格迈克尔·费舍尔雅罗斯拉夫·基拉特
Owner TENNECO GMBH
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