Anticlockwise-tumble-ratio combustion system for automotive engine

A vehicle engine and combustion system technology, applied in combustion engines, machines/engines, internal combustion piston engines, etc., can solve the problems of flow dead zone, limiting the enhancement potential of direct injection engine in the cylinder, oil and gas enrichment knocking, etc. Reduce the tendency of knocking, increase the intensity of tumble flow in the cylinder, and reduce the effect of knocking
CN106640337AInactive Publication Date: 2017-05-10UNIV OF SHANGHAI FOR SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SHANGHAI FOR SCI & TECH
Publication Date
2017-05-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an anticlockwise-tumble-ratio combustion system for an automotive engine. The anticlockwise-tumble-ratio combustion system comprises a combustion chamber roof, a cylinder wall, an exhaust valve, a pit piston, an exhaust-side oil sprayer, an intake valve seat ring and a vertical intake channel, wherein the exhaust valve, the exhaust-side oil sprayer, an asymmetrical intake valve rod and an asymmetrical intake valve are arranged on the combustion chamber roof; the included angle between the central line of the vertical intake channel and the central line of the intake valve seat ring is 15-25 degrees; fresh air enters through the vertical intake channel, and more gases flow towards the right under the action of the asymmetrical intake valve, collide with the pit piston to be reflected, and form serious clockwise rotating tumble in a cylinder through the guide of the cylinder wall and the combustion chamber roof, for improving flowing at the exhaust side, reducing a detonation trend and accelerating combustion. The anticlockwise-tumble-ratio combustion system disclosed by the invention is capable of effectively reducing the detonation of a lateral direct-injection gasoline engine in the cylinder, improving the strength of the tumble in the cylinder, and accelerating the combustion.
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Description

technical field

[0001] The invention relates to a vehicle engine combustion system, in particular to a vehicle engine reverse tumble ratio combustion control system. Background technique

[0002] In-cylinder direct injection technology for automotive gasoline engines can effectively increase the power per liter of the engine and reduce the fuel consumption and emissions of the vehicle. It is a common combustion control technology in the field of automotive engines. Due to the direct fuel injection in the cylinder, the mixing time of gasoline and air is greatly shortened, so it is necessary to organize regular airflow movement in the cylinder to ensure the uniform and ideal distribution of the mixture of oil and gas in the cylinder at the moment of ignition. Developing a reasonable in-cylinder airflow movement organization mode to improve the fuel efficiency of side-mounted direct-injection engines and reduce emissions has always been the goal pursued in the field of direct-i...

Claims

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