Rotary air valve type engine

Abstract

The invention relates to the technical field of engines, and discloses a rotary air valve type engine. The rotary air valve type engine comprises a cylinder body and a cylinder cover arranged at the upper end of the cylinder body; a piston is arranged in the cylinder body; an air inlet channel and an air exhaust channel are arranged in the cylinder cover; an air inlet rotary valve and an air exhaust rotary valve which can rotate are further arranged in the cylinder cover; an air inlet hole and an air exhaust hole are respectively formed in the air inlet rotary valve and the air exhaust rotaryvalve in a radial penetrating mode; when the air inlet rotary valve rotates, the air inlet rotary valve can communicate with the air inlet channel and the cylinder body through the air inlet hole, andthe air inlet rotary valve can block the air inlet channel; and when the air exhaust rotary valve rotates, the air exhaust rotary valve can communicate with the air exhaust channel and the cylinder body through the air exhaust hole, and the air exhaust rotary valve can block the air exhaust channel. The air inlet rotary valve and the air exhaust rotary valve are used for replacing a complex valvestructure of an ordinary engine, so that the intake and exhaust of the engine are controlled, the structure is simple, and the quantity of parts of a valve mechanism of the engine is reduced. The cylinder cover structure is more compact, the size is smaller, and the processing cost of the engine is reduced.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a rotary valve engine. Background technique [0002] At present, the valve mechanism of the four-stroke vehicle engine generally adopts the valve type. Over the years, the valve mechanism of the engine has developed many types, but the overall structure has not changed. The commonly used ones are side valve and overhead valve. The two forms, the side valve structure is simple, but the inflation efficiency is low, the flame propagation distance is long, and has been eliminated in the vehicle; the overhead valve and the side camshaft valve are a typical form of the valve mechanism, and the camshaft Arranged on the side of the cylinder, the higher position is called the middle camshaft, and the lower position is called the lower camshaft. The structure of the overhead camshaft mainly has three forms: rocker arm drive, swing arm drive, and direct drive. Due to the camshaft Vibration...

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Problems solved by technology

[0002] At present, the valve mechanism of the four-stroke vehicle engine generally adopts the valve type. Over the years, the valve mechanism of the engine has developed many types, but the overall structure has not changed. The commonly used ones are side valve and overhead valve. The two forms, the side valve structure is simple, but the inflation efficiency is low, the flame propagation distance is long, and has been eliminated in the vehicle; the overhead valve and the side camshaft valve are a typical form of the valve mechanism, and the camshaft Arranged on the side of the cylinder, the higher position is called the middle camshaft, and the lower position is called the lower camshaft. The structure of the overhead camshaft mainly has three forms: rocker arm drive, swing arm drive, and direct drive. Due to the camshaft Vibration and reciprocating inertia force, the noise is relatively large, and the number of parts of the valve train is also large. The overall height and weight of the engine have not been reduced, and the cost is high.

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