|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||180/792 ; R ; 60/405|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 9 인용 특허 : 0|
A method and plural embodiments of apparatus for delivering a pressure-compensated supply of fluid to a hydraulic steering circuit, wherein first and second pumps are respectively operated by a vehicle engine and by a ground wheel when the vehicle is in motion, output fluid from the two pumps being simultaneously directed to the steering circuit by a control valve with inlet relief valve means modulating output pressure of the sources in response to operation of the control valve. One embodiment contemplates dual inlet relief valves for separately modula...
A steering system for a vehicle having a prime mover and wheels, one or more of the wheels being coupled with the prime mover through a suitable drive train, comprising a hydraulic motor means for effecting vehicle steering, a first hydraulic pump coupled for operation by the prime mover, a second hydraulic pump effectively coupled for operation by rotation of one of the wheels, a steering control valve having inlet means in communication with the two pumps and outlet means in communication with the steering motor means, the control valve being operable ...