Abstract: The electromechanical brake force booster for a vehicle brake system comprises a drive arrangement for driving at least one actuating device which is designed for actuating a brake cylinder. The drive arrangement has at least one electric motor and a gearing for coupling the electric motor to the at least one actuating device. The gearing comprises at least one second spur gear and at least one first spur gear. Furthermore, the gearing has an intermediate gearing stage. The intermediate gearing stage couples the electric motor to the second spur gear and to the first spur gear in torque-transmitting fashion. The intermediate gearing stage drives the second spur gear directly and the first spur gear via at least one intermediate gear.

Abstract: A vacuum brake booster for a motor vehicle brake system, comprising a housing having axially opposing end wall regions which are connected together via a peripheral region, wherein the end wall regions each comprise at least one receiving opening for receiving components introducing braking force or releasing braking force, wherein at least one reinforcing rib is formed in at least one end wall region. According to the invention, the reinforcing rib extends outside of an inner circle arranged concentric to the receiving opening and spans an inner circle segment which encloses an angle of at least approximately 60° and at most approximately 180°.

Abstract: A vacuum brake booster for a motor vehicle brake system, comprising a displaceable force input member that is coupled to or can be coupled to a brake pedal, a chamber arrangement arranged in a booster housing having at least one working chamber and at least one vacuum chamber, which are separated from one another via at least one movable wall, a control valve assembly that can be actuated by the force input member, and a force output member for transmitting an operating force to a downstream brake system. The at least one working chamber can be fluidically connected optionally to a negative pressure source or the atmosphere by way of the control valve assembly. The control valve assembly comprises a control valve housing, in which an actuating piston that is coupled with the force input member s displaceably arranged, and a first valve seat, and a second valve seat.

Abstract: The invention relates to a brake booster (10) for a motor vehicle brake system, comprising a force input member (12) that is or can be coupled to a brake pedal and can be moved along a movement axis (V), a control valve (14) that can be actuated according to a movement of the force input member (12), a chamber arrangement (20) that is disposed in a booster housing (18), can be controlled by the control valve (14), and is provided with at least one negative-pressure chamber (28, 30) and at least one working chamber (24, 26) which are separated from each other by at least one movable wall (32, 34) coupled to the control valve (14), and a force output member (42) for applying a braking force to a downstream master brake cylinder arrangement. The control valve (14) is biased in a starting position along with the force output member (42) by means of a restoring spring (48), a first end of which rests on the control valve (14).

Abstract: A vacuum brake servo includes a force input element, a control valve actuated by the force input element, a vacuum chamber connected to a vacuum source, and an operating chamber which, depending on the actuation of the force input element, can be connected to either the vacuum chamber or the surrounding atmosphere. The control valve has a control piston that can be actuated by the force input element and, together with a valve element, forms a seal seat having a seal seat diameter between the operating chamber and the surrounding atmosphere. In the area close to the seal seat, a guide channel is provided. When the seal seat is opened, air from the surrounding atmosphere flows into the operating chamber. The guide channel extends axially with a constant flow diameter over a predetermined length, wherein the flow diameter is less than or equal to the seal seat diameter.

Abstract: A brake force generator for a motor vehicle brake system, comprises a displaceable force input element connected or connectable to a brake pedal, a control valve actuable in accordance with a displacement of the force input element, a chamber arrangement disposed in a booster housing and controllable by the control valve and comprises at least one vacuum chamber and at least one working chamber, which are separated from one another by at least one movable wall connected to the control valve, and a force output element for supplying a brake force to a downstream brake system, wherein the control valve with the force output element is biased by a resetting spring into a normal position, wherein the resetting spring is supported by its one end against the control valve.

Abstract: The present invention relates to a brake booster device for a vehicle brake system comprising a force input element, a control valve arrangement actuable via the force input element, a chamber arrangement disposed in a housing and comprising a vacuum chamber and a working chamber, which is separated from the vacuum chamber by a movable wall and connectable selectively to a vacuum source or the atmosphere, and a force output element, wherein the movable wall is biased into a normal position by a resetting spring accommodated at least partially in the housing and wherein the housing is penetrated by at least one fastening bolt. In this case, it is provided that at least one damping element acts for the purpose of vibration damping on the resetting spring, wherein the at least one damping element is mounted on the at least one fastening bolt.

Abstract: The invention relates to a vacuum brake servo for a motor vehicle braking system, comprising a rod-like force input element which is coupled or can be coupled to a brake pedal, a control valve which is actuated by means of the force input element, a chamber arrangement having a vacuum chamber which can be connected to a vacuum source, and also having an operating chamber which, depending on the actuation of the force input element, can optionally be connected to the vacuum chamber and to the surrounding atmosphere. The control valve has a control piston that can be actuated by means of the force input element and, together with a valve element, forms a seal seat having a seal seat diameter between the operating chamber and the surrounding atmosphere. In the area close to the seal seat, a guide channel is provided, through which, when the seal seat is opened, air from the surrounding atmosphere flows into the operating chamber as a result of a pressure difference.

Abstract: The invention relates to a brake force generator for a motor vehicle brake system, comprising a displaceable force input element connected or connectable to a brake pedal, a control valve actuable in accordance with a displacement of the force input element, a chamber arrangement disposed in a booster housing and controllable by means of the control valve and comprising at least one vacuum chamber and at least one working chamber, which are separated from one another by at least one movable wall connected to the control valve, and a force output element for supplying a brake force to a downstream brake system, wherein the control valve with the force output element is biased by a resetting spring into a normal position, wherein the resetting spring is supported by its one end against the control valve.

Abstract: The present invention relates to a brake booster device for a vehicle brake system comprising a force input element, a control valve arrangement actuable via the force input element, a chamber arrangement disposed in a housing and comprising a vacuum chamber and a working chamber, which is separated from the vacuum chamber by a movable wall and connectable selectively to a vacuum source or the atmosphere, and a force output element, wherein the movable wall is biased into a normal position by means of a resetting spring accommodated at least partially in the housing and wherein the housing is penetrated by at least one fastening bolt. In this case, it is provided that at least one damping element acts for the purpose of vibration damping on the resetting spring, wherein the at least one damping element is mounted on the at least one fastening bolt.