EGR (exhaust gas recirculation) mixing device

A mixing device and mixer technology, which is applied in the direction of charging system, adding non-fuel substances to fuel, internal combustion piston engine, etc., can solve the problem of short intake pipeline, recirculation exhaust gas and fresh air mixing uniformity can no longer meet the stability of the engine Work requirements and other issues, to achieve the effect of increasing kinetic energy, high mixing uniformity, and uniform mixing

Active Publication Date: 2015-05-27
成都耐尔特科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now with the improvement and maturity of EGR technology, the amount of recirculated exhaust gas (EGR rate) is increasing, and the requirement of engine compactness makes the intake pipeline shorter, so the ratio of recirculated exhaust gas and fresh air obtained by traditional methods Mixing uniformity can no longer meet the requirements of stable engine operation

Method used

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  • EGR (exhaust gas recirculation) mixing device
  • EGR (exhaust gas recirculation) mixing device
  • EGR (exhaust gas recirculation) mixing device

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0029] Such as Figure 1 to Figure 11 As shown, the EGR mixing device of the present invention includes a gas mixer and an EGR mixer, the gas mixer is used for mixing air and gas, the EGR mixer communicates with the mixed gas outlet of the gas mixer, and the EGR mixer is used for mixing exhaust gas and mixing gas.

[0030] The EGR mixer includes an EGR mixer body and an EGR branch pipe located in the EGR mixer body. The EGR branch pipe and the inner wall of the EGR mixer are equipped with a number of exhaust gas injection holes for spraying exhaust gas into the EGR mixer body. The EGR mixer body The side of the exhaust gas inlet 14 is provided, and the exhaust gas nozzles on the EGR branch pipe and the inner wall of the EGR mixer are all communicated with the exhaust gas inlet 14.

[0031] The EGR branch pipe includes a first EGR branch pipe 12 and...

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Abstract

The invention discloses an EGR (exhaust gas recirculation) mixing device, which comprises a gas mixer and an EGR mixer, wherein the gas mixer is used for mixing air and gas; the EGR mixer is communicated with a mixture gas outlet of the gas mixer; the EGR mixer comprises an EGR mixer body and EGR branch pipes arranged in the EGR mixer body; the inner wall of each EGR branch pipe and the inner wall of the EGR mixer body are both provided with a plurality of waste gas orifices used for spraying waste gas into the EGR mixer body. According to the EGR mixing device, the mixing evenness degree of the waste gas, the air and natural gas is higher, and reaches a top level in the industry.

Description

technical field [0001] The invention belongs to the technical field of gas engine mixed gas, and in particular relates to an EGR mixing device. Background technique [0002] Exhaust Gas Recirculation (Exhaust Gas Recirculation) refers to the technology that the internal combustion engine separates a part of the exhaust gas after combustion, and introduces it into the intake side to make it burn again. The main purpose is to reduce nitrogen oxides (NOx) in the exhaust gas Increased fuel consumption when sharing partial loads. The oxygen content in the gas exhausted by the internal combustion engine after combustion is extremely low or even non-existent. After the exhaust gas is mixed with the inhaled air, the oxygen concentration in the inhaled air will be reduced, so the following phenomenon will occur: the oxygen content lower than the atmosphere is burning When the temperature is lowered, the generation of nitrogen oxides (NOx) will be suppressed. When the combustion tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/07F02M26/19
CPCY02T10/12Y02T10/30
Inventor 陈友荣
Owner 成都耐尔特科技有限公司
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