EGR mixer

A mixer and valve plate technology, applied in the direction of machines/engines, charging systems, mechanical equipment, etc., can solve the problems of being unable to adapt to various working conditions of the engine, achieve good mixing effect, improve mixing effect, and reduce throttling loss Effect

Active Publication Date: 2022-04-15
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide an EGR mixer to solve the problem that the EGR mixer in the related art cannot adapt to the various working conditions of the engine

Method used

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Embodiment Construction

[0026] 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. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include...

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Abstract

The invention provides an EGR (exhaust gas recirculation) mixer, which comprises a shell, a gas inlet and a gas outlet, the EGR pipe is arranged in the shell in a penetrating manner and extends into the air channel; the first valve plate is movably arranged on the EGR pipe in a sleeving manner in the axial direction of the EGR pipe; the second valve plate is arranged in the air channel and is opposite to the first valve plate, and the first valve plate is provided with a first buckling position buckled with the second valve plate and a first opening position separated from the second valve plate; and the first elastic piece is arranged on the EGR pipe in a sleeving mode and can apply first elastic force towards the second valve plate to the first valve plate. According to the technical scheme, the problem that an EGR mixer in the related technology cannot adapt to various working conditions of an engine can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an EGR mixer. Background technique [0002] The mixing uniformity of fresh air and EGR has a significant impact on the power, economy and emissions of diesel engines. 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 work 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. [0003] The throttling loss of the EGR pipeline is one of the evaluation indicators of the intake system, mainly because the throttling loss of the EGR pipeline directly affects the proportion of each component of the mixture, which in turn affects the combustion effect and pollutants inside each cylinder of the engine. e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M26/19
CPCF02M26/19
Inventor 李卫李斌朱涛
Owner WEICHAI POWER CO LTD
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