Rotating valve mechanism for internal combustion engine

Abstract

The invention relates to a rotary valve mechanism of an internal combustion engine, which is characterized in that a cylindrical and tubular air inlet (outlet) pipe is arranged on a cylinder cover at the upper part of a combustion chamber and is communicated with the combustion chamber, and a cylindrical and tubular intake (exhaust) valve is arranged in the air inlet (outlet) pipe and is closely attached with the combustion chamber on the cylinder cover so as to achieve the function of sealing an air cylinder; the valve is driven to rotate by a crank shaft through a sprocket wheel, and an opening is arranged at the corresponding part of the valve; when the valve needs to be opened, the opening is rotated to the position that the opening is be communicated with the combustion chamber, and the operations of air intake and exhaust are carried out between the air cylinder and the inner cavity of the valve through the opening; the valve which is arranged in the air inlet (outlet) pipe and is caused to come in contact with the combustion chamber during rotation is not provided with other holes, thereby causing the air to continuously and smoothly flow into (flow out from) the inner cavity of the valve through the air inlet (outlet) pipe and achieving the functions of air intake and exhaust of the mechanism. The rotary valve mechanism of the internal combustion engine has the advantages of smooth air intake and exhaust, high air exchange efficiency and low energy loss.

Description

technical field [0001] The invention belongs to an accessory of a combustion engine—a rotary valve device for an engine, and relates to a rotary valve mechanism for an internal combustion engine. Background technique [0002] In order to increase the intake and exhaust cross section of the internal combustion engine, improve the gas exchange efficiency of the internal combustion engine, reduce the mass of a single valve and the reciprocating inertia of the valve mechanism, the internal combustion engine gradually transitions from the traditional two valves to 3 valves, 4 valves, and 5 valves; but it is limited to the multi-valve structure Complicated, from the two aspects of performance and cost, the 4-valve engine has gradually become the mainstream of the market. In the prior art, internal combustion engine (engine) valves are generally reciprocating valves, which have defects such as insufficient intake air flow and insufficient ventilation; A complex mechanism is adopte...

AI Technical Summary

Problems solved by technology

In the prior art, internal combustion engine (engine) valves are generally reciprocating valves, which have defects such as insufficient intake air flow and insufficient ventilation; A complex mechanism is used to adjust the intake and exhaust phase and the lift of the intake and exhaust valves, but adding the mechanism not only increases the cost, but also increases the extra power consumption, and the practicability is poor

Images