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Air supply spraying pipe of engine, air supply device and engine

A technology of engine and nozzle, applied in the direction of engine components, machine/engine, charging system, etc., can solve the problems of slow engine power increase, small intake air volume, air diversion, etc., and achieve faster oil-gas mixing speed and flame propagation Fast speed, prevent air backflow effect

Inactive Publication Date: 2017-04-05
GREAT WALL MOTOR CO LTD
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AI Technical Summary

Problems solved by technology

[0002] Exhaust gas turbocharging technology is an important measure to improve vehicle performance, but due to the inertia of the supercharger during low-speed acceleration, the compressor speed cannot be increased rapidly, resulting in low intake pressure, small intake air volume, and slow engine power increase process. And with the increase of the supercharging degree, the response lag problem of the supercharger becomes more prominent, and the air supplement technology can solve the above problems to a certain extent
[0003] The inventors found that, due to the unreasonable arrangement of the existing air supply nozzles, the supplementary air cannot quickly enter the cylinder, and the process of supplementing air is easy to cause air diversion, causing engine surge, and there is room for improvement

Method used

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  • Air supply spraying pipe of engine, air supply device and engine
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  • Air supply spraying pipe of engine, air supply device and engine

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0034] The engine is equipped with an intake system to provide fresh air to the cylinder 200. In some cases, the amount of fresh air provided by the intake system is not enough to meet the needs of the engine to the greatest extent. The air supply device is used to supplement fresh air to the cylinder 200. Air.

[0035] For example, for a turbo engine, when accelerating at a low speed, due to the inertia of the turbocharger, the exhaust gas discharged from the exhaust valve 420 and the exhaust passage 410 is insufficient, and the compressor speed cannot be rapidly increased, resulting in low intake pressure and low intake pressure. The air volume is small, the process of increasing the ...

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Abstract

The invention discloses an air supply spraying pipe of an engine, an air supply device and the engine. One end of the air supply spraying pipe extends into an intake way of the engine; and an included angle alpha between the air supply spraying pipe and a valve rod of an intake door of the engine is not smaller than 30 degrees and not bigger than 45 degrees. The air supply spraying pipe of the engine facilitates direct injection of air therein into a combustion chamber of a cylinder to prevent reverse flowing of the air in the air supply process.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an air supply nozzle of an engine, an air supply device with the air supply nozzle and an engine with the air supply device. Background technique [0002] Exhaust gas turbocharging technology is an important measure to improve vehicle performance, but due to the inertia of the supercharger during low-speed acceleration, the compressor speed cannot be increased rapidly, resulting in low intake pressure, small intake air volume, and slow engine power increase process. And with the increase of supercharging degree, the problem of response lag of the supercharger becomes more prominent, and the air supplement technology can solve the above problems to a certain extent. [0003] The inventors found that, due to the unreasonable arrangement of the air supply nozzles in the existing air supply, the supplementary air cannot quickly enter the cylinder, and the process of supplementing the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M23/00
Inventor 袁中营王彦芳王崇辛成林宋东先高定伟裴培
Owner GREAT WALL MOTOR CO LTD
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