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engine egr connecting pipe assembly

A technology for engines and connecting pipes, which is applied in the direction of engine components, combustion engines, machines/engines, etc., can solve problems such as failure to eliminate installation errors, vibration, and rigid bellows, etc., to achieve reduced vibration, good decoupling, and Avoid the effect of cracking

Active Publication Date: 2016-04-27
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the EGR system of the existing engine, one end of the EGR connecting pipe is connected to the EGR valve, and the other end is connected to the EGR cooler. The general EGR connecting pipe is an integral pipe fitting with a thickness of 0.8mm. Since the two ends of the EGR connecting pipe are connected to different parts Parts, the installation size is difficult to control, it will cause vibration after installation, and the distance between the EGR valve and the EGR cooler is relatively long. Hard, poor decoupling, can not achieve the effect of eliminating installation errors, so, in the working process of the engine, the above-mentioned cooler vibrates violently and is transmitted to the connecting pipe, which may easily cause the connecting pipe to vibrate violently and break

Method used

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Embodiment Construction

[0017] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0018] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0019] Such as figure 1 As shown, the EGR connecting pipe assembly of the engine according to the specific embodiment of the present invention includes the first corrugated section 1, the second corrugated section 2 and the combined bracket, the combined bracket semicircular plate 41 and the straight plate 42, the first corrugated section One end of 1 is connected to the EGR valve of the engine through the first connecting...

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Abstract

The invention discloses an EGR connection tube assembly of an engine. The assembly comprises a first corrugated section, a second corrugated section and a combined support, wherein one end of the first corrugated section is connected with an EGR valve of the engine through a first connection flange, one end of the second corrugated section is connected with an EGR cooler of the engine through a second connection flange, a straight tube section is disposed between the other end of the second corrugated section and the other end of the first corrugated section, and the combined support is used for fixing the straight tube section. A corrugated tube of the EGR connection tube assembly is divided into the two sections, the middle of the corrugated tube is the straight tube section, and accordingly decoupling performance is good. By means of the installation mode that the middle combined support is flexibly fixed and the two ends are fixed, the effects of adjusting errors and reducing vibration are achieved, and an EGR connection tube is prevented from being broken.

Description

technical field [0001] The invention relates to an engine, in particular to an EGR connecting pipe assembly of the engine. Background technique [0002] In the EGR system of the existing engine, one end of the EGR connecting pipe is connected to the EGR valve, and the other end is connected to the EGR cooler. The general EGR connecting pipe is an integral pipe fitting with a thickness of 0.8mm. Since the two ends of the EGR connecting pipe are connected to different parts Parts, the installation size is difficult to control, it will cause vibration after installation, and the distance between the EGR valve and the EGR cooler is relatively long. Hard, decoupling is poor, and the effect of eliminating installation errors cannot be achieved. Therefore, during the working process of the engine, the above-mentioned cooler vibrates violently and is transmitted to the connecting pipe, which easily causes the connecting pipe to vibrate violently and break. [0003] The information ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M26/13F02M26/12
CPCY02T10/12
Inventor 余晓强刘时国王晓辉
Owner GUANGXI YUCHAI MASCH CO LTD
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