High-uniformity EGR (exhaust gas recirculation) mixing device

A mixing device and uniformity technology, which is applied in the field of high-uniformity EGR mixing devices, can solve the problems of uneven mixing and low EGR rate, and achieve the effects of simple assembly, improved uniformity, and satisfactory assembly and sealing

Pending Publication Date: 2017-06-13
ANHUI JIANGHUAI NAVISTAR DIESEL ENGINE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional technology, the EGR gas from the EGR pipe directly enters the intake pipe, which has the problems of uneven mixing and low EGR rate.

Method used

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  • High-uniformity EGR (exhaust gas recirculation) mixing device
  • High-uniformity EGR (exhaust gas recirculation) mixing device

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Embodiment Construction

[0015] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0016] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have ...

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Abstract

The invention discloses a high-uniformity EGR (exhaust gas recirculation) mixing device which comprises an EGR gas guide portion, a connecting portion and a head. The EGR gas guide portion comprises a guide pipe, a plurality of guide air outlet holes are uniformly formed in the guide pipe, the head and the connecting portion are arranged at the front end and the rear end of the guide pipe respectively, the connecting portion comprises a connecting plate, a rear end connecting base is arranged on an EGR pipe, a front end connecting base is arranged on an air inlet elbow, the EGR gas guide portion and the head of the EGR mixing device penetrate mounting holes of the front end connecting base and are positioned inside the air inlet elbow, and a fixing bolt sequentially penetrates the rear end connecting base and the connecting plate and then is screwed into the front end connecting base and compressed, so that the EGR mixing device is fixedly connected with the EGR pipe and the air inlet elbow. The EGR mixing device has the advantage that EGR gas can be guided into the air inlet elbow 5 and sufficiently and uniformly mixed with air.

Description

technical field [0001] The invention relates to an EGR mixing device, in particular to a high-uniformity EGR mixing device. Background technique [0002] In recent years, diesel engine emission technical requirements have become more and more stringent. The use of exhaust gas recirculation technology (EGR, Exhaust Gas Recirculation) can effectively reduce the emission of nitrogen oxides from the engine. The principle is to separate part of the exhaust gas, And introduce it into the intake side to make it burn again, the main purpose is to reduce the nitrogen oxides in the exhaust gas. The mixing uniformity of EGR plays a key role in the effect of reducing emissions and the fuel consumption and life of the engine. In the traditional technology, the EGR gas coming out of the EGR pipe directly enters the intake pipe, which has the problems of uneven mixing and low EGR rate. Contents of the invention [0003] The purpose of the present invention is to overcome the deficienci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M26/19
Inventor 刘安军黄绍明李健王文虓
Owner ANHUI JIANGHUAI NAVISTAR DIESEL ENGINE CO LTD
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