Power steering apparatus

Details Power steering apparatus Power steering apparatus

1985-03-13

1987-07-07

Pekar, John A.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

91452, B62D 508

Patent

active

046780521

ABSTRACT:
A power steering apparatus is disclosed wherein improved steering characteristics are provided over a wide range of driving conditions. The system includes an oil pump for supplying pressurized oil from an oil tank to either a left or right cylinder chamber in a power cylinder and a flow control valve which returns part of the pressurized oil discharged from the oil pump to the tank. In accordance with the invention, at least one small orifice is provided communicating a pressurized oil feed line directed to one of the chambers in the power cylinder with a return line directed to the oil tank from the other one of the chambers in the power cylinder at the downstream side of the flow control valve.

REFERENCES:
patent: 3461780 (1969-08-01), Schmon
patent: 3768371 (1973-10-01), Orme
patent: 4159723 (1979-07-01), Baatrup
patent: 4332303 (1982-06-01), de Maight
patent: 4355655 (1982-10-01), Hertell

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