Vehicle system with low-voltage EGR (Exhaust Gas Recirculation) loop

A vehicle system and EGR valve technology, applied in the field of vehicle systems, can solve problems such as economic deterioration and exhaust gas energy reduction, and achieve the effect of avoiding exhaust gas energy reduction

Inactive Publication Date: 2020-11-06
DONGFENG COMML VEHICLE CO LTD
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the problems existing in the prior art, the purpose of the present invention is to provide a vehicle system with a low-pressure EGR circuit that takes air from behind the turbine and does not pass through the aftertreatment system, thereby avoiding the nee

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vehicle system with low-voltage EGR (Exhaust Gas Recirculation) loop

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] It should be noted that, in the case of no conflict, the following technical solutions and technical features can be combined with each other.

[0037] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

[0038] like figure 1 As shown, the present invention provides a vehicle system having a low pressure EGR circuit, including an engine 1 and a low pressure EGR circuit. The engine 1 is connected with an intake manifold 15 and an exhaust manifold 16 , the engine 1 is connected to the compressor 7 through the intake manifold 15 , and is connected to the turbine 3 through the exhaust manifold 16 . The low-pressure EGR circuit takes the exhaust gas from the vortex of the turbine 3, and processes the exhaust gas to obtain reburned gas. Burn again.

[0039] The low-pressure EGR circuit in the present invention takes the exhaust gas directly from the vortex rear of the turbine 3 without passing th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a vehicle system with a low-voltage EGR (Exhaust Gas Recirculation) loop, and belongs to the technical field of engine exhaust gas recirculation. The vehicle system comprises an engine, wherein an intake manifold and an exhaust gas manifold are connected to the engine, and the engine is connected with a compressor through the intake manifold and is connected with a turbinethrough the exhaust gas manifold. The low-voltage EGR loop is used for collecting exhaust gas from the vortex of the turbine and treating the exhaust gas so as to obtain recombustion gas, and the recombustion gas is conveyed to the compressor by the low-voltage EGR loop and is conveyed to the engine by the compressor for recombustion. The vehicle system with the low-voltage EGR loop has the beneficial effects that gas is collected from the turbine and does not pass through an aftertreatment system, so that the pipeline layout problem caused by collection of gas from the turbine and the passingof the aftertreatment system is avoided, and additionally, the problems of exhaust energy reduction caused by flowing of exhaust gas through a DPF and economic deterioration caused by installation ofa counterbalance valve are avoided.

Description

technical field [0001] The invention relates to the technical field of engine exhaust gas recirculation, in particular to a vehicle system with a low-pressure EGR circuit. Background technique [0002] At present, the main technologies to effectively reduce the nitrogen oxides of internal combustion engines are SCR (Selective Catalytic Reduction, short for Selective Catalytic Reduction) and EGR (Exhaust Gas Re-circulation, short for Exhaust Gas Recirculation System) technology. The exhaust gas is introduced into the engine to participate in the combustion again, which plays a role in reducing the oxygen concentration and combustion temperature, thereby reducing the formation of nitrogen oxides. [0003] Existing EGR technology is mainly divided into high-pressure EGR technology and low-pressure EGR technology: high-pressure EGR technology is to take exhaust gas from the vortex front of the engine turbocharger, and the exhaust gas returns to the engine intake pipe through EGR...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F02M26/07F02M26/19F02M26/35F01N3/023F02M26/24
CPCF01N3/023F02M26/07F02M26/19F02M26/24F02M26/35
Inventor 刘贝赵艳婷殷勇李智闫志敏王东邹智欧
Owner DONGFENG COMML VEHICLE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap