Fluid power engine

Details Fluid power engine Fluid power engine

1990-05-09

1991-08-06

Ostrager, Allen M.

Power plants

Internal combustion type free piston device supplies motive...

F02B 7104

Patent

active

050366670

ABSTRACT:
A fluid power engine is disclosed. A pair of axially aligned and opposed combustion pistons oscillate in a pair of opposed cylinders. The pistons are connected to each other by a common axial shaft. A fluid power piston is adapted to the shaft and oscillates in a fluid cylinder. Upon oscillating action of the combustion pistons, the fluid power piston oscillates to produce fluid power. By means of a fluid power return assembly, a portion of the fluid power produced is returned to the fluid power piston to urge the combustion pistons in their return directions after their respective firing strokes. The fluid power return assembly includes a spool valve that is actuated by means of physical contact with the combustion pistons.

REFERENCES:
patent: 735863 (1908-08-01), Duryea et al.
patent: 1215383 (1917-02-01), Kenyon
patent: 1405551 (1922-02-01), Nichols
patent: 1741731 (1929-12-01), Nordensson
patent: 2178310 (1939-10-01), Pescara
patent: 3170406 (1965-02-01), Robertson
patent: 3283752 (1966-11-01), Stelzer
patent: 4385597 (1983-05-01), Steizer
patent: 4791786 (1988-12-01), Stuyvenberg

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