Invention Grant
US09333963B2 Vacuum pump for a brake system with clutch attachment to an engine 有权
用于带发动机离合器的制动系统的真空泵

Vacuum pump for a brake system with clutch attachment to an engine
Abstract:
A brake system for a vehicle comprises a vacuum pump mounted to an engine, wherein the vacuum pump is selectively connected to be driven by the engine. A clutch is mounted within a housing for the vacuum pump. The clutch can be selectively engaged to drive the vacuum pump with the engine. A sensor is connected to the clutch such that the clutch is actuated to engage when the sensor determines that one of a vacuum within the pump is below a predetermined vacuum threshold and when the engine speed is below a predetermined speed threshold.
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