| 摘要 |
A power steering gear mechanism for an automotive vehicle comprising a fluid motor connected drivably to a vehicle steering gear linkage and a control valve for directing motor actuating fluid pressure to the fluid motor from a power steering pump, the control valve including a vehicle speed sensitive bypass valve and a flow control valve in the fluid circuit connecting the pump and the gear whereby a reduced flow of pressurized fluid to the gear occurs at low speeds and during parking maneuvers and wherein a lower flow of fluid is applied to the steering gear during steering maneuvers at high speeds whereby a reduction in the power assist and an increased road feel and reduced power consumption occur during operation of the vehicle at high speeds.
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