EGR mixer and engine with same

A technology for mixers and moving sleeves, applied in the direction of machines/engines, engine components, mechanical equipment, etc., to reduce obstruction, improve mixing effect, and reduce throttling loss

Pending Publication Date: 2019-05-24
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can also improve the mixing effect of recirculated exhaust gas and fresh air, it will also cause greater flow losses at high speeds

Method used

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  • EGR mixer and engine with same
  • EGR mixer and engine with same
  • EGR mixer and engine with same

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Embodiment Construction

[0044] The invention discloses an EGR mixer to ensure higher mixing effect and lower throttling loss. The present invention also provides an engine with the above-mentioned EGR mixer.

[0045]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] Please refer to Figure 1-Figure 4 The embodiment of the present invention provides an EGR mixer, which includes a mixer housing 1 and an EGR pipeline, and the EGR pipeline includes an EGR outlet pipe section 8 , an air outlet adjusting device 3 and an elastic device 4 ....

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PUM

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Abstract

The invention discloses an EGR mixer and an engine with the same. The EGR mixer comprises a mixer shell and an EGR pipeline; the EGR pipeline comprises an EGR exhaust pipe section, an exhaust port adjusting device and an elastic device, wherein the EGR exhaust pipe section extends into the mixer shell; an exhaust port is formed in the EGR exhaust pipe section; the exhaust port adjusting device isarranged on the EGR exhaust pipe section, and is used for adjusting the exhaust area of the exhaust port; the elastic device is used for adjusting the exhaust port adjusting device relative to the position of the EGR exhaust pipe section; when the intake pressure of the EGR pipeline is increased, the exhaust port adjusting device overcomes elastic force of the elastic device to move relative to the EGR exhaust pipe section, and the exhaust area of the exhaust port is increased; and when the intake pressure of the EGR pipeline is reduced, the exhaust port adjusting device moves relative to theEGR exhaust pipe section under the effect of elastic recovery force of the elastic device, and the exhaust area of the exhaust port is reduced. The EGR mixer achieves a better mixing effect and lowerEGR pipeline throttling loss.

Description

technical field [0001] The invention relates to the technical field of engine equipment, in particular to an EGR mixer and an engine with the same. Background technique [0002] The mixing uniformity of air and exhaust gas has a significant impact on the power, economy and emissions of the engine. During the intake process of the engine, if the mixed gas distribution is uneven, the amount of gas distributed to each cylinder through the intake pipe is inconsistent, which will inevitably lead to problems such as poor working consistency and poor combustion effect of each cylinder of the engine. Therefore, the uniformity of the mixed gas is one of the important indicators to evaluate the mixer. Currently, air is mixed with exhaust gas by an EGR mixer. EGR (Exhaust Gas Recirculation, Exhaust Gas Recirculation) is a technology for automotive internal combustion engines to introduce part of the exhaust gas into the intake air for reburning after combustion, which can reduce the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M26/19
Inventor 李卫潘洁唐帅王雪鹏杨燕楠罗国良
Owner WEICHAI POWER CO LTD
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