The method of the present invention is completed V-shaped mechanism comprising a piston cylinder array for converting heat energy into mechanical energy and a plunger cylinder array for shunting mechanism energy and converting mechanical energy into oil pressure energy, and an energy collector with oil motor. The piston in piston cylinder array move in two or four strokes and one or two turns of the rotating crankshaft completes once conversion; while the plungers in the plunger cylinder array move in two strokes and one turn of the rotating crankshaft completes once energy shunting and conversion to oil pressure energy. Hyperbolic power output characteristic is realized via the oil motor and the collector. The present invention has no transition cycle and thus is superior. |