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

Discharge gas ejection dust emission device and its silencer

A muffler and exhaust gas technology, which is applied in the direction of exhaust devices, noise reduction devices, machines/engines, etc., can solve the problems of short exhaust tailpipes and small layout space, and achieve small vehicle space occupation, easy layout and good effect Effect

Active Publication Date: 2008-10-15
DONGFENG MOTOR CORP HUBEI
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of using ejector to discharge dust when the existing exhaust tailpipe is short and the vehicle layout space is small, and to provide an exhaust ejector dust removal device and a muffler with exhaust ejector

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
  • Discharge gas ejection dust emission device and its silencer
  • Discharge gas ejection dust emission device and its silencer
  • Discharge gas ejection dust emission device and its silencer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 2 As shown, the muffler 5 is a columnar cavity, one end of which is provided with an exhaust inlet pipe 9, and the other end is provided with an air outlet pipe 10; the housing of the muffler 5 is provided with a muffler structure 15, and the muffler structure 15 is an existing structure and is not limited in the illustrated structure. The shell 11 of the muffler 5 is provided with an ejector pipe 7, the inlet section 12 of the ejector pipe 7 is arranged outside the muffler shell, and the ejector pipe 7 extends into the muffler shell. The casing of the muffler and the injection pipe can be connected as one part, or two parts, that is, the injection pipe passes through the casing of the muffler. In this embodiment, the injection pipe and the casing of the muffler are an integral part. The injection pipe 7 is composed of an inlet section 12 , an outlet section 13 and a connecting section 14 that smoothly connects the inlet section 12 and the outlet secti...

Embodiment 2

[0022] The communication between the ejector pipe and the throat pipe can also be a straight-through type, such as image 3 As shown, the ejector pipe 7-2 is arranged in parallel with the exhaust inlet pipe 9-2 and the outlet pipe 10-3 of the muffler 5-2, and the throat pipe 6-2 is arranged in the muffler 5-2 and connected with the outlet pipe 10-3 . The straight-through connection reduces the accumulation of dust in the wall of the ejector tube. Of course, the exhaust gas inlet pipe 9-2 and the gas outlet pipe 10-3 may not be in a parallel structure.

Embodiment 3

[0024] Such as Figure 4 As shown, the injection pipe 7-3 is located inside the muffler housing, and the muffler housing has a pipeline installation hole 5-3.

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 an exhaust gas ejection dust exhaust device and a muffler, comprising a muffler shell on which an inlet pipe, an ejection pipe and an outlet pipe are arranged, an inlet part of the ejection pipe is arranged out of the main shell of the muffler, the ejection pipe stretches into the muffler shell, and an outlet part of the ejection pipe stretches into a throat pipe. The muffler and the ejection pipe are formed as a whole structure creatively, which makes full use of the internal space of the muffler, realizes ejection dust exhaust with a shorter exhaust tail pipe and forms a novel muffler. The invention has a simple structure, a short tail pipe and has no need for additional fixation; is easy to arrange, low in cost, less in occupation of the whole unit and high in reliability; and can realize parallel arrangement of the ejection pipe, the throat pipe, the inlet pipe and the outlet pipe of the muffler. Moreover, shorter tail pipe (exhaust outlet) helps to produce greater negative pressure and is good in automatic dust exhaust.

Description

technical field [0001] The invention belongs to an automobile exhaust and dust removal device, in particular to an automobile muffler. Background technique [0002] When automobiles and construction machinery work in a dusty environment, the dust in the air filter cannot be automatically discharged in time, resulting in a greatly shortened filter element maintenance and replacement cycle, increasing user use and cost burden. For this reason, foreign countries use exhaust ejection and dust removal. It arranges a throat structure on the exhaust tailpipe after the muffler, and an ejector pipe interface is opened on the tailpipe near it, and the pipeline is connected to the one-way valve, and then Through the one-way valve, the pipeline is connected to the dust outlet of the air filter to complete the exhaust gas ejection and dust removal device. At the throat, due to the sudden change in cross-section, the exhaust gas will form a negative pressure here after passing through, a...

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 Applications(China)
IPC IPC(8): F01N7/08F01N13/08
Inventor 陆德福刘建峰叶爱凤张仁新庹文振邓瑞
Owner DONGFENG MOTOR CORP HUBEI
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