Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Exhaust gas purification device for internal combustion engines

An exhaust gas purification device and internal combustion engine technology, applied in the direction of exhaust gas recirculation, charging system, mechanical equipment, etc., can solve the problems of increased weight and manufacturing costs, difficulties in packaging and layout, and difficulty in achieving compactness, etc., to achieve weight reduction , Excellent packaging and layout, improving the effect of packaging and layout

Active Publication Date: 2019-05-14
HONDA MOTOR CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to form a double-layer pipe part with a high-temperature heat-resistant member such as a steel pipe or cast iron, which is more difficult to form than aluminum castings. Therefore, it is actually difficult to achieve compactness, and there are difficulties in packaging and layout. cost increase
In addition, as a sealing member used in the connection between the double pipe part and the heat exchange core, O-rings other than rubber, laminated gaskets, brazing and other sealing members with high temperature and heat resistance are required. Based on this, manufacturing costs will rise

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
  • Exhaust gas purification device for internal combustion engines
  • Exhaust gas purification device for internal combustion engines
  • Exhaust gas purification device for internal combustion engines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

[0052] figure 1 It is a front view of an exhaust gas purification device 1 for an internal combustion engine according to an embodiment of the present invention. figure 2 It is a side view of the exhaust gas purification device 1 for an internal combustion engine according to the present embodiment. image 3 It is an exploded perspective view of the exhaust gas purification device 1 for an internal combustion engine according to the present embodiment. exist figure 1 and figure 2 Among them, U indicates upward, LW indicates downward, R indicates the right direction viewed from the driver, L indicates the left direction viewed from the driver, Fr indicates the front of the vehicle, and Rr indicates the rear of the vehicle.

[0053] Such as figure 1 and figure 2 As shown, the exhaust gas purification device 1 of the present embodiment is disposed on the vehicl...

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 provides an exhaust gas purification device for an internal combustion engine, the device has better cooling efficiency than before, and the low-cost structure can realize compact and excellent packaging and arrangement. The exhaust gas purification device (1) comprises an EGR pipe (11) which takes EGR gas flow back to an intake channel, an EGR cooler (12) which is arranged on the EGR pipe and is used for cooling EGR gas through performing heat exchange with cooling water that is used for cooling an engine (2) and is introduced from an internal combustion engine cooling circuit (3), and an EGR cooling circuit (13) which is used for connecting an introduction port (123) and an exhaust port (124) of cooling water formed on the EGR cooler with the internal combustion engine cooling circuit, at least a part of the EGR cooling circuit passes through the EGR pipe on the downstream side in a backflow direction of the EGR cooler and the connection portion (10) of the EGR cooler, extends along the EGR pipe and is integrated with the EGR pipe through a separation wall (110) with thermal conductivity, and a sealing pad (100) for sealing the cooling water and the EGR gas is arranged on the connection portion.

Description

technical field [0001] The invention relates to an exhaust gas purification device of an internal combustion engine. More specifically, it relates to an exhaust gas purification device for an internal combustion engine including an EGR passage and an EGR cooler. Background technique [0002] Conventionally, there is known an exhaust gas purification device for an internal combustion engine including an EGR passage for returning a part of exhaust gas to the intake passage as EGR gas, and an EGR cooler for cooling the EGR gas. The EGR cooler is installed in the middle of the EGR passage, and cools the EGR gas by exchanging heat with cooling water introduced from an engine cooling circuit for cooling the internal combustion engine. [0003] In the above-mentioned EGR cooler, an inlet and an outlet for cooling water are formed, and an EGR cooling circuit that connects these inlets and outlets to the cooling circuit of the internal combustion engine is provided. This EGR coolin...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F02M26/28F02M26/32
Inventor 黑川纯一饭泉贵司上田谕三好一也
Owner HONDA MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com