Patent ID: 8714941
Filing Date: 2014-05-06
Classification: B60T,F04B,F16C

Abstract:
1. A motor-pump assembly for providing pressure for a brake actuating device of a motor vehicle brake system having a pneumatic brake booster, comprising a double diaphragm pump with a first and a second working diaphragm opposite one another; the first working diaphragm being clamped in between a pump housing and a first working space cover and as a result bounding a first working space, and the second working diaphragm being clamped in between the pump housing and a second working space cover and as a result bounding a second working space; an electric motor driving a crank drive having a corresponding eccentric and connecting rod acting on each of the first and second working diaphragms; a first inlet duct with a first inlet valve assigned to the first working space; a second inlet duct with a second inlet valve assigned to the second working space; a first outlet duct with a first outlet valve assigned to the first working space, a second outlet duct with a second outlet valve assigned to the second working space, the first and second outlet ducts guiding air expelled from the first and second working spaces into an interior space of the pump housing surrounding the crank drive; and an air outlet unit for releasing the expelled air from the interior space, with a filter housing, a filter, an air outlet cover, a valve body, and a partition wall between the filter housing and the air outlet cover, the partition wall deflecting the expelled air emerging from the interior space in the air outlet unit; wherein the partition wall further comprises a seal-forming element which is molded on the circumference of the partition wall for the purpose of sealing the air outlet unit.