Abstract: A modular braking device for a hydraulic motor vehicle brake system, which is optimized for remote actuation, including a hydraulic booster stage with a booster housing, a main brake cylinder mounted thereon, a booster piston which is displaceable therein and delimits a pressure chamber which is supplied directly with pressure medium by a motor pump unit.

Abstract: A brake device for a hydraulic motor vehicle brake system without a vacuum booster, with a housing with at least one pressure chamber arranged therein, with a cylinder piston which can be axially moved in an actuation direction by an actuating rod unit coupled to the cylinder piston in order to generate brake pressure, wherein a rigid stop is provided for the cylinder piston which defines the non-actuated starting position of the cylinder piston. In order to provide an improved brake device of the above-mentioned type, which permits simple and reliable detection of the zero point and simultaneously has reduced noise emission on the return, a damping element is provided which permits a mechanical decoupling of the actuating rod unit from the cylinder piston in a release direction opposite the actuation direction by reversible deformation.

Abstract: A simple, compact, and economical motor/pump unit for supplying vacuum to a pneumatic brake booster of a motor-vehicle brake system, wherein the motor/pump unit is designed as a diaphragm pump having a single elastomeric diaphragm, which is moved by an electrically operated motor unit by an eccentric drive, and has a pump housing and a working-space cover and the diaphragm is clamped between the pump housing and the working-space cover at the radial outer edge of the diaphragm in a sealing manner and the working-space cover is designed as a multi-part working-space cover having an upper cover, a lower cover, and an inlet valve and an outlet valve, which are arranged between the upper cover and the lower cover and control the air circulation through the working space.

Abstract: In an electric motor-pump assembly, two working diaphragms, each delimiting a working chamber, are cyclically driven by a crank drive via connecting rods. The crank drive includes eccentrics for each connecting rod, which are placed on an axial bearing journal in the extension of an output shaft of an electric motor. In order to ensure a rotationally fixed connection between the eccentrics and the bearing journal to be produced and in order to ensure an angularly precise position of the two eccentrics, each of the eccentrics is connected to the bearing journal by a positively locking engagement.

Abstract: A fluid container having at least one internal chamber for receiving a fluid, and having at least one connector for hydraulically connecting the internal chamber to a downstream hydraulic apparatus, wherein the connector at the end thereof toward the internal chamber has a mouth portion. In order to propose an improved fluid container by way of which high volumetric flows can also pass through the connector at high throughflow rates with low losses and reduced resistance, it is proposed that an escape value of the connector is provided so as to be larger than 0.82, and the mouth portion in relation to a container wall region that directly surrounds the mouth portion is at least in portions designed so as to be raised in the direction of the internal chamber.

Abstract: A brake device for a hydraulic motor vehicle brake system, having a housing, at least one pressure chamber arranged in the housing, filled with a hydraulic pressure medium and bounded by at least one cylinder piston moveable in an axial direction to generate brake pressure. The cylinder piston can be activated mechanically with an activation force by an activation rod unit which is secured to the cylinder piston. In order to provide an improved brake device which is of the generic type mentioned at the beginning and permit a secure connection between the activation rod and the cylinder piston and at the same time mounting which is as easy as possible, it is proposed that the activation rod unit is secured to the cylinder piston by a latching connection, wherein the latching connection is brought about by an axial relative movement between the activation rod unit and the cylinder piston.

Abstract: A brake system for motor vehicles has a master brake cylinder having at least a first and a second master brake cylinder piston, arranged one behind the other and bound a first and second pressure space. Wheel brakes are connected to each a brake circuit. The first master brake cylinder piston is connected to a brake pedal via a pressure rod. An atmospheric pressure medium storage tank is assigned to the pressure spaces at, per brake circuit, an electrically controllable pressure source with a suction connection and a pressure connection. The pressure connection connected to the wheel brakes. The suction connection connected to the master brake cylinder via a normally closed valve, and, per brake circuit, a normally open valve via which the master brake cylinder is connected to the wheel brakes. Per brake circuit, the suction connection is connected to the pressure medium storage tank via a first valve.

Abstract: A brake device having a hydraulic booster stage for a hydraulic motor vehicle brake system is provided, which brake device, within normal boosting operation, can be operated both in an autonomous, driver-independent actuation mode with electronic control and in a manual actuation mode controlled by the driver, and outside normal boosting operation, can be operated in an emergency mode with a non-boosted actuation force generated by the driver alone, in the case of which brake device it is proposed that, within normal boosting operation, each actuation mode is assigned a dedicated piston in a booster housing of the booster stage, which piston is acted on directly with the boosting force and transmits this mechanically to components connected functionally downstream.

Abstract: A modular braking device for a hydraulic motor vehicle brake system, which is optimized for remote actuation, including a hydraulic booster stage with a booster housing, a main brake cylinder mounted thereon, a booster piston which is displaceable therein and delimits a pressure chamber which is supplied directly with pressure medium by a motor pump unit.

Abstract: A simple, compact, and economical motor/pump unit for supplying vacuum to a pneumatic brake booster of a motor-vehicle brake system, wherein the motor/pump unit is designed as a diaphragm pump having a single elastomeric diaphragm, which is moved by an electrically operated motor unit by an eccentric drive, and has a pump housing and a working-space cover and the diaphragm is clamped between the pump housing and the working-space cover at the radial outer edge of the diaphragm in a sealing manner and the working-space cover is designed as a multi-part working-space cover having an upper cover, a lower cover, and an inlet valve and an outlet valve, which are arranged between the upper cover and the lower cover and control the air circulation through the working space.

Abstract: The invention relates to a pump unit that can be driven by an electric motor, in particular for providing vacuum for a pneumatic brake booster, including a pump housing that can be closed by a working-chamber cover and at least one elastic displacement element, wherein a working chamber is bounded between the displacement element and the working-chamber cover and wherein inlet valves and outlet valves and inlet channels and outlet channels associated with the valves are associated with the working chamber. According to the invention, in order to reduce noise emissions, devices for reducing a contact surface between the working-chamber cover and the pump housing are provided.

Abstract: A pump assembly for supplying negative pressure to a pneumatic brake booster, wherein the pump assembly has at least two elastic displacement elements which are moved by connecting rods, the connecting rods each being rotatably mounted on an eccentric element. The eccentric element has a bearing seat element and a force element. At least two eccentric elements are secured next to each other on a drive shaft that rotates about an axis of rotation and an interlocking anti-rotation device is provided that determines a defined angular position of the eccentric elements relative to each other about the axis of rotation. In order to improve the ease of assembly and simplify the manufacturability, the anti-rotation device is designed as shaped elements of the bearing seat element in such a way that they engage in each other in an interlocking manner when the eccentric elements are in a defined angular position relative to each other.

Abstract: In an electric motor-pump assembly, two working diaphragms, each delimiting a working chamber, are cyclically driven by a crank drive via connecting rods. The crank drive includes eccentrics for each connecting rod, which are placed on an axial bearing journal in the extension of an output shaft of an electric motor. In order to ensure a rotationally fixed connection between the eccentrics and the bearing journal to be produced and in order to ensure an angularly precise position of the two eccentrics, each of the eccentrics is connected to the bearing journal by a positively locking engagement.

Abstract: A pump assembly for supplying negative pressure to a pneumatic brake booster, wherein the pump assembly has at least two elastic displacement elements which are moved by connecting rods, the connecting rods each being rotatably mounted on an eccentric element. The eccentric element has a bearing seat element and a force element. At least two eccentric elements are secured next to each other on a drive shaft that rotates about an axis of rotation and an interlocking anti-rotation device is provided that determines a defined angular position of the eccentric elements relative to each other about the axis of rotation. In order to improve the ease of assembly and simplify the manufacturability, the anti-rotation device is designed as shaped elements of the bearing seat element in such a way that they engage in each other in an interlocking manner when the eccentric elements are in a defined angular position relative to each other.

Abstract: A motor-pump unit, for providing pressure for a brake actuating device having a pneumatic brake booster including a pump and an electric motor driving the pump, the pump being a dual diaphragm pump having two opposed working diaphragms, each of which is clamped between a pump casing and a working chamber cover and delimits a working chamber, and moveable by a crank drive having connecting rods and bearings, the working diaphragm connected firmly to a tappet and, together with the connecting rod, in each case forming a diaphragm unit. In order to provide a low-noise motor-pump unit which is more cost-effective and requires reduced expenditure on assembly, the connecting rods are made of plastic, wherein in each case one tappet and one bearing are encapsulated with the material of the connecting rod. Alternatively, the connecting rods can be formed in one piece with the tappet and provided as sintered components.

Abstract: A device for monitoring the position and movement of a brake pedal for motor vehicles, including a power assist brake actuating unit. The brake actuating unit having a master cylinder fastened to the brake power assist unit, a housing and at least one piston displaceable in a linear manner in the master cylinder, and a position indicator for monitoring the position of the brake pedal. The position indicator transmits signals to a sensor element connected to an electronic control unit. The position indicator is provided on a support coupled to the movement of the control valve housing or to the movable wall that is supported by the control valve housing. The support is guided in a housing of a sensor element, and the housing of the sensor element penetrates in a vacuum-tight manner the power assist unit housing and the housing of the master cylinder having a first housing section.

Abstract: Disclosed is a brake actuating unit for actuating a motor vehicle brake system of the ‘brake-by-wire’ type. The system includes a brake booster which is operable in response to the driver's wish both by a brake pedal and by an electronic control unit. A device is provided to decouple a force-transmitting connection between the brake pedal and the brake booster in the ‘brake-by-wire’ operating mode. A master brake cylinder connected downstream of the brake booster, a device to detect a deceleration request of the driver, and a pedal travel simulator which interacts with the brake pedal and due to which a resetting force acting on the brake pedal can be simulated in the ‘brake-by-wire’ operating mode independently of an actuation of the brake booster, and which can be enabled in the ‘brake-by-wire’ operating mode when the force-transmitting connection between the brake pedal and the brake booster is decoupled and can be disabled outside the ‘brake-by-wire’ operating mode.

Abstract: The invention relates to a pump unit that can be driven by an electric motor, in particular for providing vacuum for a pneumatic brake booster, including a pump housing that can be closed by a working-chamber cover and at least one elastic displacement element, wherein a working chamber is bounded between the displacement element and the working-chamber cover and wherein inlet valves and outlet valves and inlet channels and outlet channels associated with the valves are associated with the working chamber. According to the invention, in order to reduce noise emissions, devices for reducing a contact surface between the working-chamber cover and the pump housing are provided.

Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (13) permits low-noise expulsion of the air from the interior space 22 by deflecting the air. In order to make available a low-noise, cost-reduced motor-pump assembly the eccentrics (9) each have an unbalance weight (25) integrally molded onto the eccentric (9).

Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (23, 53) has a filter housing (32, 54), a filter (33, 59), an air outlet cover (34, 56), a valve holding element (38, 70) and a valve body (31). A partition wall (37, 55) deflects the air emerging from the interior space (22) in the air outlet unit (23, 53 between the filter housing (32, 54) and the air outlet cover (34, 56), with an integrally molded valve holding element (38, 70).