A variable compression ratio rotary engine with reciprocating arc motion

Abstract

A variable compression ratio rotor engine with reciprocating circular arc motion belongs to the field of mechatronics and includes a wet clutch, an angular displacement sensor, a transmission gear, a reversing shaft and the like. It is characterized in that: the angular displacement sensor can continuously detect the rotation angle of the rotor relative to position B, and when the on-board ECU judges that the angle reaches the angle set by the system, it controls the hydraulic system to connect or disconnect each wet clutch, and switches the transmission route, so that The reciprocating arc motion of the rotor is converted into the one-way circular motion of the output shaft. At the same time, the on-board ECU can judge whether it is necessary to change the engine compression ratio according to the driving conditions of the vehicle. When the compression ratio needs to be changed, the on-board ECU changes it according to the model preset by the vehicle. The maximum angle value that the rotor can rotate currently set by the system makes the maximum angle that the engine rotor can rotate different, the total volume of the cylinder changes, but the volume of the combustion chamber remains unchanged, so that the compression ratio is variable. The invention has the advantages of realizing variable compression ratio of the rotary engine, wide range of compression ratio and large maximum compression ratio.

Description

technical field [0001] The invention relates to a variable compression ratio rotor engine with reciprocating arc motion, which belongs to the field of electromechanical integration. Background technique [0002] Compared with traditional reciprocating engines, rotary engines rely on the expansion force generated by the combustion of air-fuel mixture to obtain rotational force. The difference between the two engines lies in the way the expansion force is used. The traditional reciprocating engine converts the expansion force into linear motion through the piston and cylinder, and then converts it into the circular motion of the engine output shaft through the crank linkage; the rotary engine directly converts the expansion force into the circumference of the engine output shaft through a specific mechanical structure sports. [0003] The traditional reciprocating engine inevitably causes mechanical energy loss when converting linear motion into circular motion, while the rot...

AI Technical Summary

Problems solved by technology

[0004] Due to the lack of high compression ratio of the triangular rotor engine, the combustion is insufficient, the fuel consumption is high, the pollution is serious, and the lubrication condition of the triangular rotor engine is poor, the mechanical wear is serious, and the cylinder is not heated uniformly, which hinders the popularization of the triangular rotor engine

[0005] At present, most turbocharged engines have a fixed compression ratio when they leave the factory, and the turbine blows excess air into the cylinder forcibly. In order to prevent this phenomenon, a lower compression ratio is basically used, but a low compression ratio means lower thermal efficiency. When the turbo is not fully involved (that is, when the engine speed is low), the combustion efficiency is very low.

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