Pump with a flow-regulating valve device and an injector device
AssigneeLuk Fahrzeug-Hydraulik GmbH & Co. KG
InventorsWaldemar Hebisch, Van Doan Nguyen
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Abstract
A power-steering pump for a motor vehicle is used to pump fluid to an additional fluid-driven device such as a hydraulic motor of a ventilation fan. The pump has a flow-regulating valve and an injector device, where a jet of excess fluid streaming off the flow-regulating valve generates a suction effect that pulls return fluid from a suction pipe or a reservoir tank into the intake area of the pump. A fluid stream returning from the additional fluid-driven device enters the intake area through one or more fluid return channels that are separate from the injector channel.
Claims7
A pump for pumping a fluid to a power-steering device and to an additional fluid-driven device in a motor vehicle, said pump comprising a rotating assembly, an intake area of the rotating assembly, a flow-regulating valve device, an injector device, an injector channel through which a first stream of said fluid enters the intake area, and at least one fluid return channel through which a second stream of said fluid enters the intake area, wherein the at least one fluid return channel is separate from the injector channel and wherein the second stream comprises at least a portion of the fluid streaming off the additional fluid-driven device.
Dependencies are inferred from the claim text.