Power plants – Pressure fluid source and motor – Manual pump pressurizes fluid to position output motor...
Patent
1979-02-26
1983-01-18
Cohen, Irwin C.
Power plants
Pressure fluid source and motor
Manual pump pressurizes fluid to position output motor...
60402, 91509, 137118, 13759618, 180133, 180134, 180139, B62D 508, B62D 510, F15B 1306, F15B 2000
Patent
active
RE0311251
ABSTRACT:
A steering system 40 for an articulated vehicle 10 having a pair of double acting steering cylinders 24, 26 and power steering means 44 consisting of a pump 48 and a hydrostatic steering unit 50 to which the steering wheel 42 of the vehicle is interconnected. Control means 46 are disposed between the power steering means 44 and the double acting cylinders 24, 26 for causing fluid to be directed from the power steering means 44 to both of the first and second cylinders 24, 26 during rotation of the steering wheel 42 at a first steering ratio when the pump 48 is in operation, and at a second higher steering ratio when the pump 48 is not in operation to permit manual steering of the vehicle 10. The control means includes novel valving means 64 having pilot operated two position two way spool valves 84, 86 one of which 84 is operatively associated with the first double acting cylinder 24 and the other of which 86 is operatively associated with the second double acting cylinder 26.
REFERENCES:
patent: Re25036 (1961-09-01), Donner et al.
patent: 3509958 (1970-05-01), Lang
patent: 3554089 (1971-01-01), Lang
patent: 3566749 (1971-02-01), Allen et al.
patent: 3631937 (1972-01-01), Joyce
patent: 3765181 (1973-10-01), Lang et al.
patent: 3800670 (1974-04-01), Hufeld et al.
patent: 4023363 (1977-05-01), Liebert
patent: 4028997 (1977-06-01), Lang
Cohen Irwin C.
Farris Robert L.
Massey-Ferguson Inc.
Thompson John C.
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