Gas inlet tumble flow control device of gasoline engine

Abstract

The invention provides a gas inlet tumble flow control device of a gasoline engine. The gas inlet tumble flow control device comprises a control bucket, wherein a control chamber is formed in the control bucket; the control chamber is separated into a first space and a second space which are not communicated with each other; the first space is communicated with an exhausting pipe on a gas inlet side of a catalysis bag through a first connection pipe; and the second space is communicated with a gas inlet pipe between an air filter and a throttle plate through a second connection pipe. The gas inlet tumble flow control device of the gasoline engine has a simple and effective mechanical structure, and gas inlet tumble flow of the engine is adjusted through reasonably utilizing the property of pressure change of the exhausting pipe when an internal-combustion engine works under a high-speed working condition and a low-speed working condition; and any electric control equipment is not used, so that the system is simple in structure, low in cost and low in fault rate, and has a relatively long service life.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to an intake tumble control device for a gasoline engine. Background technique [0002] At the beginning of the 20th century, British B. Hopkinson found in the internal combustion engine test that when the air in the cylinder is disturbed, the combustion process can be accelerated Effect, the use of tumble flow to increase the turbulence intensity in the combustion chamber and the use of lean mixture combustion mode, etc., have become the focus of research on spark ignition engines. The air movement in the engine cylinder is transient and complex. From the point of view of the overall movement of the gas macroscopically, it generally appears as an oblique-axis vortex. At this time, the vortex and tumble can be used as two independent components of the oblique-axis vortex. The flow can also increase the turbulence intensity of the air movement in the combustion c...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in view of the complexity, high manufacturing cost and slightly high failure rate of the current system for adjusting the intake tumble flow of an internal combustion engine, the present invention provides an intake tumble control device for a gasoline engine No electronic control equipment is used, but a simple and effective mechanical structure is used to automatically adjust the tumble flow of the intake air of the internal combustion engine by using the pressure difference

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