Abstract: An actuation device for a brake system which has an actuatable master brake cylinder. The actuation device includes a gearing device which has a displaceable threaded spindle, wherein the master brake cylinder can be actuated by displacing the threaded spindle, an electric motor for driving the gearing device, and a housing in which the threaded spindle is at least partially arranged, wherein a rotation-locking element is connected to the threaded spindle against rotation, and wherein the housing has at least one rotational counter-stop which interacts with a rotational stop of the rotation-locking element in order to form an anti-rotation device for the threaded spindle. The housing is an extrusion profile, and the rotational counter-stop is formed by an extrusion structure of the extrusion profile.

Abstract: An electrohydraulic actuator for a brake system. The actuator includes: a housing defining an interior space and having first and second openings; a master brake cylinder positioned in the first opening and attached to the housing so that the first opening is sealed in a fluid-tight manner; an electric motor arranged on the housing; and a transmission in the interior space and kinematically coupled to the master brake cylinder. The transmission includes a transmission intermediate part which is moveable along a longitudinal axis and subdivides the housing, into a first housing region in which the master brake cylinder is arranged, and a second housing region facing the second opening. The actuator includes a compensating membrane closing the second opening in a fluid-tight manner and elastically deformable to reduce a pressure difference between the first and second housing region when an axial displacement of the transmission intermediate part occurs.

Abstract: An actuating device for a brake system. The actuating device includes an actuatable master brake cylinder, with a transmission device, which includes a displaceably mounted transmission element, with an electric motor for driving the transmission device, with a displaceably mounted pressure force transmitter, which is connected to an input rod in such a way that the pressure force transmitter is displaceable by the input rod, wherein the master brake cylinder is actuatable both by a displacement of the transmission element as well as by a displacement of the pressure force transmitter, and with a sensor, which includes a first sensor part that is displaceable together with the pressure force transmitter and a second sensor part that is displaceable together with the transmission element. The first and the second sensor parts are displaceably mounted on a common carrier element of the sensor.

Abstract: An electrohydraulic actuator for a brake system. The actuator includes: a housing defining an interior space and having first and second openings; a master brake cylinder positioned in the first opening and attached to the housing so that the first opening is sealed in a fluid-tight manner; an electric motor arranged on the housing; and a transmission in the interior space and kinematically coupled to the master brake cylinder. The transmission includes a transmission intermediate part which is moveable along a longitudinal axis and subdivides the housing, into a first housing region in which the master brake cylinder is arranged, and a second housing region facing the second opening. The actuator includes a compensating membrane closing the second opening in a fluid-tight manner and elastically deformable to reduce a pressure difference between the first and second housing region when an axial displacement of the transmission intermediate part occurs.

Abstract: A brake booster device. The brake booster includes a reservoir and a master brake cylinder having at least one chamber and at least one piston arranged in the chamber. The chamber can be connected to the pressure regulator so that the piston can be at least partially by returned via the pressure regulator, wherein the chamber can be connected to the reservoir, wherein a valve is arranged between the chamber and the reservoir.