Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1984-04-12
1986-11-11
Schwadron, Martin P.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
91375A, 91363R, B62D 506
Patent
active
046217045
ABSTRACT:
The known power steering system of the type that movement of a steering wheel is transmitted via a torsion bar to an oil path switching valve to actuate a power cylinder in a desired steering direction by switching a high pressure oil path extending from an oil pump to the oil path switching valve and a low pressure oil path extending from the oil path switching valve to an oil tank and a part of working oil flowing through the high pressure oil path is led to a reaction piston to restrain torsion of the torsion bar, is improved in that the power steering system comprises a control oil path branched from the high pressure oil path and communicating with the reaction piston, a pressure control valve interposed in the control oil path for controlling an oil pressure to be equal to or lower than a predetermined highest pressure, a flow rate control valve provided on the downstream side of the pressure control valve for controlling a flow rate depending upon a car speed, a first orifice for communicating the downstream side of the flow rate control valve to the low pressure oil path, and a pilot oil path for transmitting a pilot pressure generated on the upstream of the first orifice to the pressure control valve.
REFERENCES:
patent: 1947973 (1934-02-01), Davis
patent: 3407707 (1968-10-01), Belliere
patent: 3458998 (1969-08-01), Bishop
patent: 3645296 (1972-02-01), Adams
patent: 3800407 (1974-04-01), Dumeah
patent: 3867870 (1975-02-01), Shimoura
patent: 3930554 (1976-01-01), Ward
patent: 3998131 (1976-12-01), Adams
patent: 4009641 (1977-03-01), Rohde et al.
patent: 4034825 (1977-07-01), Adams
patent: 4043419 (1977-08-01), Larson et al.
patent: 4063490 (1977-12-01), Duffy
patent: 4065921 (1978-01-01), Baatrup et al.
patent: 4096883 (1978-06-01), Yip
patent: 4331211 (1982-05-01), Lang
patent: 4335867 (1982-06-01), Bihlmaier
patent: 4343330 (1982-08-01), Numasawa et al.
patent: 4356759 (1982-11-01), Ljubimov et al.
patent: 4377217 (1983-03-01), Nishikawa et al.
patent: 4378030 (1983-03-01), Duffy
patent: 4460016 (1984-07-01), Haga et al.
patent: 4487225 (1984-12-01), Adams
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
Novack Sheri M.
Schwadron Martin P.
LandOfFree
Power steering system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power steering system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power steering system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-372742