Motors: expansible chamber type – Working member position feedback to motive fluid control – Follower type
Patent
1994-03-01
1995-12-05
Look, Edward K.
Motors: expansible chamber type
Working member position feedback to motive fluid control
Follower type
91392, 60384, 60385, 440 62, 114114, 114154, F15B 910, B63H 2508
Patent
active
054719070
ABSTRACT:
A fluid power apparatus is connected to a pressurized fluid supply and a conventional helm pump controlled by the helm of a vessel to shift the rudder. The apparatus comprises an actuator cylinder connectable to the rudder, and a servo cylinder and a main valve connected to the helm pump to pass fluid therebetween and between the actuator cylinder. The actuator cylinder and servo cylinder have respective bodies and piston rods, and portions of the servo cylinder and actuator cylinder are connected together for concurrent simultaneous movement along respective longitudinal axes. Valve shifting structure is responsive to a change in fluid signal from the helm pump applied to the servo apparatus. Fluid diverting structure is responsive to a threshold supply pressure so as to actuate the valve to stop flow of supply fluid when supply pressure drops below the threshold pressure. When pressurized fluid is available, the valve is actuated in response to a fluid signal from the helm pump and the actuator cylinder receives pressurized fluid from the valve and directs fluid back to the valve. When pressurized fluid is not available, the valve is actuated in response to a fluid signal from the helm pump and the valve is effectively by-passed and the actuator cylinder receives fluid from the helm pump and is actuated by manually applied pressures.
REFERENCES:
patent: 2236467 (1941-03-01), Clench
patent: 2370422 (1945-02-01), Carlson et al.
patent: 2787235 (1958-04-01), Schroeder
patent: 2794424 (1957-02-01), May
patent: 2855755 (1958-10-01), Auger
patent: 2891498 (1959-06-01), Schroeder
patent: 2916008 (1959-12-01), Bauer
patent: 2939417 (1960-06-01), Hammock
patent: 3135095 (1964-06-01), Peterson
patent: 3148657 (1964-09-01), Horning
patent: 3171380 (1965-03-01), Kuhn
patent: 3180096 (1965-04-01), Peterson
patent: 3584537 (1971-06-01), Schulz
patent: 3596626 (1971-08-01), Buddrus
patent: 3613632 (1971-10-01), Farrell
patent: 3631833 (1972-01-01), Schimanckas
patent: 3913517 (1975-10-01), Lohse
patent: 4041889 (1977-08-01), Blanchard
patent: 4054102 (1977-10-01), Borst
patent: 4295833 (1981-10-01), Borst
patent: 4416637 (1983-11-01), Kashmerick
patent: 4419084 (1983-12-01), Borst
patent: 4431422 (1984-02-01), Hall
patent: 4449470 (1984-05-01), Rump
patent: 4482331 (1984-11-01), Boda
patent: 4551105 (1985-11-01), Hall
patent: 4568292 (1986-02-01), Hall
patent: 4578039 (1986-03-01), Hall
patent: 4592732 (1986-06-01), Ferguson
patent: 4595370 (1986-06-01), Small
patent: 4615290 (1986-10-01), Hall
patent: 4632049 (1986-12-01), Hall
patent: 4689025 (1987-06-01), Ferguson
patent: 4710141 (1987-12-01), Ferguson
patent: 4731035 (1988-03-01), Wagner
patent: 4744777 (1988-05-01), Ferguson
patent: 4773882 (1988-09-01), Rump
patent: 4778416 (1988-10-01), Rhoads
patent: 4836812 (1989-06-01), Griffiths
patent: 4976639 (1990-12-01), Rawlings
patent: 5002510 (1991-03-01), Rump
patent: 5031562 (1991-07-01), Nakase
patent: 5057043 (1991-10-01), Sugimoto
patent: 5074193 (1991-12-01), Hundertmark
patent: 5092801 (1992-03-01), McBeth
patent: 5127856 (1992-07-01), Kabuto et al.
patent: 5188051 (1993-02-01), Huber
patent: 5213527 (1993-05-01), Fetchko
patent: 5228405 (1993-07-01), Merten
patent: 5289756 (1994-03-01), Kobelt
"Hydraulic Power Steering for Commercial and Pleasure Boats to 80 ft", by Hynautic of Sarasota, Fla., Aug. 1990.
Kobelt Manufacturing Co. Ltd.
Look Edward K.
Nguyen Hoang
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