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Modified structure of S495 diesel engine air inlet pipe

A technology for diesel engines and intake pipes, applied in mechanical equipment, engine components, machines/engines, etc., can solve the problems of large difference in the volume ratio of intake branch pipes, reduce the charge coefficient of diesel engines, affect the mixing of fuel and gas, etc., and achieve smooth flow , the effect of reducing the resistance and increasing the charge coefficient

Inactive Publication Date: 2015-03-25
溧阳市超强链条制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transition between the branch pipe and the main pipe is not very smooth, and the entire gas has many turns in the flow channel, which will cause a large flow loss, which greatly reduces the charge coefficient of the diesel engine and affects the mixing of fuel and gas. It has a negative impact on the economic indicators, power indicators and emission performance of diesel engines
At the same time, since the position of the air inlet of the intake manifold is fixed, the volume ratio of the intake branch pipe and the manifold differs greatly. When running at high speed, there may be problems of large intake resistance and uneven intake, which greatly affects the performance of the diesel engine. work performance

Method used

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  • Modified structure of S495 diesel engine air inlet pipe

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Embodiment 1

[0023] Such as figure 1 As shown, an improved structure of an S495 diesel engine intake pipe in this embodiment includes a diesel engine body 1, an intake manifold 2 and an intake manifold 3, and the intake manifold 2 communicates with the diesel engine body 1 through the intake manifold 3. Since the intake pipe has a great influence on the fuel consumption rate of the S495 diesel engine, and in the prior art, the intake pipe turns too sharply and has a region with a sudden change in cross-section, which causes a large flow resistance and reduces the charge coefficient of the intake port , the average pressure loss of the intake air increases. In order to solve the above problems, a new intake pipe structure is designed in this embodiment, in which the inner diameter of the intake manifold 3 is larger than that of the intake manifold 3 which is arranged on the diesel engine body 1 and is in phase with the intake manifold 3. Corresponding air inlet diameter. Specifically, the ...

Embodiment 2

[0025] A kind of S495 type diesel engine air intake pipe improvement structure of this embodiment, compared with embodiment 1, its difference is: in this embodiment, the inner aperture of intake manifold 3 is made to be smaller than the air intake caliber on diesel engine body 1 15mm larger, and the cross section of the intake manifold 3 is circular.

Embodiment 3

[0027] A kind of S495 type diesel engine air intake pipe improvement structure of this embodiment, compared with embodiment 1, its difference is: in this embodiment, the inner aperture of intake manifold 3 is made to be smaller than the air intake caliber on diesel engine body 1 20mm larger, and the cross-section of the intake manifold 3 is square.

[0028] The improved structure of the air intake pipe of the S495 diesel engine of the present invention simply improves the existing air intake pipe of the S495 diesel engine, and expands the flow area of ​​the airflow without increasing the manufacturing cost, so that the gas enters the combustion chamber before entering the combustion chamber. The air pressure fluctuates less, the air intake is uniform, the flow loss is reduced, the work is reliable, the effect is remarkable, and it has strong practicability and economy.

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Abstract

The invention discloses a modified structure of an S495 diesel engine air inlet pipe, and belongs to the technical field of internal combustion engines. The modified structure of the S495 diesel engine air inlet pipe comprises a diesel engine body, an air inlet main pipe, and an air inlet branch pipe, wherein the air inlet main pipe is communicated with the diesel engine body through the air inlet branch pipe, an air inlet is formed in the diesel engine body, the inner diameter of a pipe opening of the air inlet branch pipe is 10-20 mm larger than the aperture of the air inlet in the diesel engine body, and the end of the air inlet branch pipe is in arc transition and then matched with the aperture of the air inlet of the diesel engine body. The modified structure of the S495 diesel engine air inlet pipe can expand the flow area of air flow in an air inlet pipeline, can reduce flow loss and flow resistance, and is reliable in work, obvious in effect and long in service life.

Description

technical field [0001] The invention relates to an intake pipe of a diesel engine, and more specifically relates to an improved structure of the intake pipe of an S495 diesel engine. Background technique [0002] All kinds of diesel engines have intake pipes. At present, the intake pipes used by diesel engines are composed of intake main pipe and several intake branch pipes. The transition between the branch pipe and the main pipe is not very smooth, and the entire gas has many turns in the flow channel, which will cause a large flow loss, which greatly reduces the charge coefficient of the diesel engine and affects the mixing of fuel and gas. It has a negative impact on the economic index, power index and emission performance of the diesel engine. At the same time, since the position of the air inlet of the intake manifold is fixed, the volume ratio of the intake branch pipe and the manifold differs greatly. When running at high speed, there may be problems of large intake...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/104
Inventor 蒋俊美蒋阿生蒋俊波
Owner 溧阳市超强链条制造有限公司
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