Toward a Hydraulic Prime Mover

This paper deals with the reasons for and the development of an internal combustion engine with an immediately hydraulic output. After looking at some of the advantages to be gained from such an engine, the following considerations are then discussed: a hydraulic substitute for the conventional flywheel; quick, efficient starting and stopping; converting a declining combustion pressure into a constant hydraulic pressure; operation over a range of system pressure; interface with a hydrostatic transmission, and energy storage and regeneration.