Hydraulic power transducer

Details Hydraulic power transducer Hydraulic power transducer

1983-02-28

1984-10-23

Freeh, William L.

Pumps

Three or more cylinders arranged in parallel, radial, or...

Motor driven

91499, F04B 3500

Patent

active

044785577

ABSTRACT:
A two-way transducer for transfering power between two hydraulic circuits, e.g. to ensure uninterrupted hydraulic power in all the hydraulic circuits of a twin engined aircraft, even when one engine has failed. A body (1) has an elongate cavity (4) housing two barrels (14, 15) of cylinders (26) with pistons (28) slidably mounted therein. A common drive shaft (17) enables each barrel to drive the other. A wedge (16) located between the barrels provides two oblique surfaces (18, 19) for the piston heads to slide over. Sealing means (38, 39, 43, 44) to prevent fluid leaking from one circuit to the other. In operation one barrel operates as a swashplate type of motor driving the other barrel which then acts as a pump.

REFERENCES:
patent: 2622567 (1952-12-01), Myard
patent: 2850986 (1958-09-01), Grad
patent: 3602105 (1971-08-01), Slusher
patent: 3627451 (1971-12-01), Kouns

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