Patent ID: 7488160
Filing Date: 2009-02-10
Classification: B62D,F04C

Abstract:
1. A motor-pump unit, comprising: a housing including a surrounding side wall and having a first open end and a second open end, the first open end defining a pump space, the second open end defining a motor space which also serves as a hydraulic fluid reservoir, the housing further including an intermediate wall disposed between the pump space and the motor space; a pump module disposed in the pump space of the housing, the pump module including a pump body separate from the housing and containing pump components, and a pump cover closing the pump body; wherein an outer surface of the pump body and an inner surface of the side wall of the housing cooperate to define a resonator space, the pump module having an inlet sucking hydraulic fluid from the hydraulic fluid reservoir and having an outlet for supplying pressurized fluid to the resonator space; a resonator cover separate from the pump cover connected to the first open end of the housing and closing and sealing the resonator space; a drive motor received directly in the motor space of the housing and connected through the intermediate wall of the housing to drive the pump module; and a plate connected to the second open end of the housing and closing and sealing the motor space.