Y-type two-stroke multi-cylinder engine

Abstract

The invention relates to a Y-type two-stroke multi-cylinder engine comprising an engine box. Three air cylinders are evenly distributed in the circumferential direction around one side of the engine box and form a Y shape. The other side of the engine box is provided with a blade pump feeding mixed gas into the cylinders. An upper crankshaft and a lower crankshaft are coaxially installed in the engine box and are fixedly connected into a whole. A front end shaft of the upper crankshaft extends out of the engine box to be connected with an external motor to input power, a back end shaft of the lower crankshaft is provided with a generator rotor, wherein stator coils are arranged in the generator rotor. A connection rod corresponding to pistons of the three air cylinders is arranged between the upper crankshaft and the lower crankshaft. One end of the connection rod is movably connected with a crankshaft pin between the upper crankshaft and the lower crankshaft. The other end of the connection rod is movably connected with the corresponding pistons. Cylinder covers of the air cylinders are provided with sparking plugs igniting the three air cylinders. The Y-type two-stroke multi-cylinder engine integrates respective advantages of a two-stroke engine and a Y-type engine, the weight is reduced, the number of parts is reduced, the machining difficulty is lowered, and a series of problems of low rotation speed, low power-mass ratio and the like of an existing engine are solved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a star-shaped two-stroke multi-cylinder engine. Background technique [0002] Due to the outstanding advantages of simple structure and light weight, the two-stroke engine is widely used and developed very rapidly, but it also has problems such as high fuel efficiency and large emission pollution. Existing two-stroke engines are mainly used in ATVs, small sports cars and some garden equipment. These applications mainly use the simple structure and light weight of two-stroke engines. [0003] The radial engine first appeared on fighter jets during World War II. Its characteristics are that the volume of the four-stroke multi-cylinder engine is greatly simplified, the weight is reduced, and the power-to-mass ratio is high. However, star-shaped engines are difficult to process, have complex structures, and are expensive, so simple star-shaped engines have not been well applied and ...

AI Technical Summary

Problems solved by technology

However, star-shaped engines are difficult to process, complex in structure, and expensive, so simple star-shaped engines in the real world have not been well applied and promoted.

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