Flow guidance pipe structure of engine air intake system
A technology of air intake system and guide tube, applied in the direction of engine components, machine/engine, charging system, etc., can solve the problems of long intake pipe length and difficult engine, so as to improve accuracy and reduce exhaust gas return. Risk of rush, the effect of accurate numerical value
Pending Publication Date: 2020-06-23
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
Therefore, the length of the current intake pipes is mostly long, which cannot meet the current compact requirements for engine layout, and it is difficult to arrange them on the engine.
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Embodiment Construction
[0022] Below in conjunction with embodiment, the present invention is further described, but does not constitute any restriction to the present invention, anyone makes the limited number of amendments in the scope of claims of the present invention, still within the scope of claims of the present invention.
[0023] refer to Figure 1-Figure 4 , an engine air intake system guide pipe structure of the present invention, including an air intake connecting pipe 4 . One end of the intake connecting pipe 4 is connected with the intake throttle valve 3 , and the other end is connected with the engine intake pipe 2 . A connecting head 9 communicating with the EGR assembly 1 is provided on the intake connecting pipe 4 , and a guide pipe 5 for guiding the exhaust gas to the engine intake pipe 2 is provided at a position corresponding to the connecting head 9 in the intake connecting pipe 4 . Specifically, the connecting head 9 and the guide tube 5 are in an integral structure. A seco...
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The present invention discloses a flow guidance pipe structure of an engine air intake system, relates to the technical field of engine air intake and exhaust systems, and solves the technical problemof insufficiently accurate intake air temperature detection caused by non-compact arrangement of an air intake system in the prior art. The flow guidance pipe structure comprises an air intake connecting pipe; one end of the air intake connecting pipe is connected with an air intake throttle valve, and the other end of the air intake connecting pipe is connected with an engine air intake pipe; the air intake connecting pipe is provided with a connector communicating with an EGR assembly, and the part, corresponding to the connector in position, in the air intake connecting pipe is provided with a flow guidance pipe for guiding waste gas to the engine air intake pipe; and the air intake connecting pipe between the connector and the air intake throttle valve is provided with a second connector for mounting an intake air temperature sensor. The flow guidance pipe structure is reasonable in structure and compact in arrangement, the arrangement difficulty is reduced, the risk of waste gasbackflush is further effectively lowered, and the measured intake air temperature value is more accurate.
Description
technical field [0001] The invention relates to the technical field of an engine exhaust and intake system, and more specifically, it relates to a structure of a guide pipe of an engine intake system. Background technique [0002] When the engine works, it sends air and fuel into the cylinder to burn and release energy, which is converted into mechanical energy. The temperature, amount and concentration of the gas sent into the cylinder all have a great impact on the combustion, which directly affects the various indicators of the engine. [0003] The intake pipe connected to the outside air sends fresh air to the engine intake pipe connected to the engine through the intake throttle, and before the air reaches the engine intake pipe, the intake air temperature needs to be monitored, and then the EGR is mixed through the three-way joint component exhaust. For the inspection of the intake air temperature, the closer the intake air temperature sensor used to detect the air t...
Claims
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IPC IPC(8): F02M35/10
CPCF02M35/10262F02M35/10222F02M35/1038F02M35/10091
Inventor 陈楚枫刘显宏覃海玉蒙小聪董家枝
Owner GUANGXI YUCHAI MASCH CO LTD