Abstract: A planet gear includes a toothed portion having an axial bore, a hub disposed within the axial bore such that a space is defined between the hub and the toothed portion, and a spring disposed in the space. A gear is quieter in operation through configuration such that the gear includes a toothed portion having an axial bore and a hub coaxially orientable within the axial bore, and a spring is positioned between the hub and the toothed portion providing retention and isolation of the toothed portion relative to the hub.

Abstract: A motor vehicle hydraulic system including a power steering pump, a reservoir, a steering assist fluid motor, and a second fluid motor for a radiator cooling fan. A flow control valve remote from the power steering pump divides the total fluid flow from the power steering pump into a high flow branch and a low flow branch. Fluid circulates in the low flow branch at a substantially constant flow rate for a proportional control valve for the steering assist fluid motor and returns to the reservoir through an unrestricted tubular boss on the reservoir. Fluid in the high flow branch issues as a jet stream from a nozzle on the reservoir into a venturi passage submerged in fluid in the reservoir. The venturi passage is connected to an inlet port of the power steering pump. The jet stream aspirates fluid from the reservoir into the venturi passage. The kinetic energy of the jet stream is converted into superatmospheric pressure at the inlet port of the power steering pump to suppress cavitation.