Hydraulic fluid generator

Details Hydraulic fluid generator Hydraulic fluid generator

1976-04-14

1981-08-18

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60530, F03G 706

Patent

active

042839157

ABSTRACT:
Two sources of water with a temperature differential of say 20.degree. F. flow alternately through heat exchanger tubes to expand and contract a working liquid that has a high coefficient of thermal expansion, the whole working cycle being carried out below the boiling point of the working liquid. With check valves preventing reverse flow, the expansion and contraction of the working liquid provides a high pressure hydraulic output which may be used to drive a hydraulic motor. To provide substantially steady output flow, four banks of heat exchangers may be operated sequentially with hydraulic accumulator means smoothing out the flow pulsations. Each bank has a four-stage operating cycle and electrical circuitry controls the four banks simultaneously to cause the four different stages to occur in certain of the four different banks in staggered relation for producing a substantially constant overall hydraulic output.

REFERENCES:
patent: 3055170 (1962-09-01), Westcott, Jr.
patent: 3425485 (1969-02-01), Newton
patent: 3753462 (1973-08-01), Burger
patent: 4107928 (1978-08-01), Kelly et a.
Literary Digest, Aug. 15, 1931, p. 28.

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