Control system for superhigh pressure generation circuit

Details Control system for superhigh pressure generation circuit Control system for superhigh pressure generation circuit

1981-10-16

1984-11-27

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

Pulsator

60538, 60545, 60593, 91 39, 91361, B60T 1722

Patent

active

044844433

ABSTRACT:
A control system for a superhigh pressure generation circuit includes a hydraulic pump having a usual range of delivery pressure. An electrohydraulic servo valve controls the flow rate of pressurized fluid from the pump and supplies it to a primary side of a boost cylinder. A stepped piston slidably received in the boost cylinder strokes in response to the input fluid to generate a fluid pressure elevated in accordance with an effective sectional area ratio of the stepped piston in a secondary side of the boost cylinder. The fluid pressure in the secondary side is caused to coincide accurately with a reference pressure level on the basis of a feedback control.

REFERENCES:
patent: 2403912 (1946-07-01), Doll
patent: 3093971 (1963-06-01), Van Deberg
patent: 3613505 (1971-10-01), Bubula
patent: 3702057 (1972-11-01), Rabiger
patent: 3752282 (1973-08-01), Espenshied
patent: 4037519 (1977-07-01), Miller
patent: 4208879 (1980-06-01), Segawa

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