Power plants – Reaction motor – Motive fluid principally liquid
Patent
1989-09-25
1991-12-17
Bertsch, Richard A.
Power plants
Reaction motor
Motive fluid principally liquid
417270, 91361, 91366, 92 122, 92 71, F04B 126, F15B 1316
Patent
active
050730916
ABSTRACT:
A rotary hydraulic machine which includes a housing having a shaft mounted for rotation within the housing about a shaft axis. A cylidner block is coupled to the shaft for co-rotation with the shaft within the housing and includes a plurality of cylinders disposed in a circumferential array parallel to and surrounding the shaft axis. A piston is disposed to reciprocate within each of the cylinders and is coupled to a yoke for determining displacement of the pistons within the cylinders. A valve plate is mounted on a valve block and includes kidney-shaped slots for registering with the cylinders as the cylinder block rotates, and thereby connecting the cylinders to pump input and output ports. A microprocessor-based controller is externally mounted on the pump valve block and includes internal memory having various remotely-selectable control programs prestored therein. Sensors responsive to pump operating conditions are connected to the pump control electronics, and include a first sensor responsive to yoke position, a pressure sensor responsive to pump output pressure and a speed sensor responsive to angular velocity of shaft rotation. All of the electronic components are mounted on the valve block.
REFERENCES:
patent: 4072442 (1978-02-01), Horiuchi
patent: 4484137 (1984-11-01), Chang
patent: 4487109 (1984-12-01), Burandt et al.
patent: 4712173 (1987-12-01), Fijiwara et al.
patent: 4714005 (1987-12-01), Leemhuis
patent: 4744218 (1988-05-01), Edwards et al.
patent: 4823552 (1989-04-01), Ezell et al.
Hand Book for Applying Solid State Hall Effect Sensors, Microswitch, 1976, pp. VI-3, VI-4.
Burgess Roy T.
Gunda Rajamouli
Herta Frank
Hodges Robert C.
Kessler James A.
Bertsch Richard A.
Savio, III John A.
Vickers Incorporated
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