Features of The Rotary Engines:

By following reciprocating engine basic features of rotary engine given bellow

1.      There are no reciprocating parts. Thus the problems of inbalance caused by the inertia of reciprocating parts and complicated engine vibration is eliminated. In rotary engines vibrations is very low because it is possible to perfectly balance the engine by using the balancing weights.

Also rotary engine does not require a cranking mechanism, it has the advantage of smooth motion, less mechanical loss, simple construction and compactness.

2.      There is no separate intake –exhaust valve mechanism. In a reciprocating engine intake exhaust valve mechanism generates mechanical noise by opening and closing of the valves and the valves themselves obstruction air flow. Due to inertia of valve mechanism, the valves are unable to fully follow the motion of the cam at high revolutions. This results in variation in effective valve timings of the engine.

But a rotary engine the rotor directly opens and closes the intake and exhaust ports, eliminating the valve mechanism, hence the correct timing for opening and closing can be maintained even at high speeds.

3.      The time for one stroke is 270 degrees in terms of the rotating angle of the output shaft and there is one explosion for one rotation of the output shaft.