Document Type and Number:
Japanese Patent JPS5650105
Kind Code:
B2
Abstract:
A free piston engine, or an opposed free piston engine, in which the power output is derived as a flow of pressurized hydraulic fluid. The engine piston, or each engine piston, coacts with a hydraulic pump which delivers hydraulic fluid into a constant displacement accumulator. The constant displacement accumulator is charged to a predetermined level on each power stroke of the engine piston, to store energy for effecting the recompression stroke. Pressurized fluid for driving a load motor is delivered in accordance with the opening of a pressure-responsive one-way valve, upon charging of the accumulator to its maximum level, so that the energy available for the recompression stroke of the piston is independent of load. In the case of an opposed free piston engine, a closed loop control system is provided for maintaining the engine pistons in synchronism.
Application Number:
JP11489272A
Publication Date:
November 26, 1981
Filing Date:
November 17, 1972
Export Citation:
International Classes:
F02B71/00; F01B7/02; F01B11/04; F01B23/08; F02B71/04; F02B75/04; F03C2/08; F04B11/00; F04B17/05; F04B49/16; F04B53/10; F04C14/06; F04C14/24; F16H39/08
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