Easy-to-ignite wankel rotary piston engine

Abstract

The invention discloses an easy-to-ignite wankel rotary piston engine. The easy-to-ignite wankel rotary piston engine comprises a cylinder body and a wankel rotary piston; and an oil spraying nozzle and an ignition plug are fixedly arranged on the cylinder body. The easy-to-ignite wankel rotary piston engine is characterized in that an air guiding portion and an air guiding groove are formed on / ineach outer side wall of the wankel rotary piston; flow dividing bosses are disposed in the middles of the air guiding grooves; each air guiding portion comprises two symmetrical flow guiding grooves;one ends of the flow guiding grooves communicate with the air guiding grooves; the other ends of the flow guiding grooves communicate with arc-shaped backflow grooves; flow guiding bosses are disposed in the flow guiding grooves; and the two flow guiding grooves communicate and the communication portions are located in the middles of the air guiding portions, and then a low-speed area is formed.The easy-to-ignite wankel rotary piston engine has the advantage that when the engine works, the low-speed area of mixed air is formed in the middles of the air guiding portions, when the low-speed area approaches the position of the ignition plug at the ignition moment, the ignition plug can easily ignite the mixed air, then stable combustion occur, and the reliability of ignition of the wankel rotary piston engine is improved.

Description

technical field [0001] The invention relates to an engine, in particular to an easily ignitable triangular rotor engine. Background technique [0002] The triangular rotor engine, also known as the Wankel engine, is a four-stroke engine, which is characterized in that the three vertices of the triangular rotor are close to the inner wall of the cylinder, which divides the inner cavity of the cylinder into three working areas. With the rotation of the triangular rotor, air is first sucked into the intake chamber, then the mixture formed by fuel and air is compressed, and then the mixture is ignited near the top dead center position, and the combustion gas expands to apply torque to the triangular rotor , to push the triangular rotor to rotate, and finally the exhaust gas is discharged from the exhaust port to complete a working cycle. [0003] One of the main problems of the triangular rotor engine is that it is not easy to ignite. The main reason is that with the rotation d...

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Problems solved by technology

[0003] One of the main problems of the triangular rotor engine is that it is not easy to ignite. The main reason is that with the rotation direction of the triangular rotor, during the compression stroke of the triangular rotor engine, the shape of the combustion chamber becomes flatter and the position space is constantly changing. When the mixture in the combustion chamber is compressed, a super strong air flow is generated along the rotation direction of the triangular rotor and the direction of the inner wall of the cylinder. Usually, the absolute speed of the air flow at the ignition position reaches more than 40m / s. Vertical, which makes the ignition spark extremely easy to be blown out during ignition, causing the mixture in the combustion chamber to be unable to be ignited due to lack of fire, which affects the normal operation of the triangular rotor engine

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