In the present invention, the method is completed in a 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 fluid pressure energy. The pistons in piston cylinder array move in two or four strokes and one or two turn 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 fluid pressure energy. The present invention has no transition cycle and thus has high conversion efficiency simpel working principle, flexible process, saving in material and power. |