The present invention relates to an adapter body for a brake application device of a vehicle braking system. The adapter body has a first bearing surface which is designed to bear against a bulkhead of a vehicle, and a second bearing surface which is designed to bear against the brake application device, wherein the first bearing surface and the second bearing surface are at a predetermined distance from one another. A receiving means for a portion of at least one fastening bolt for fastening the brake application device to a vehicle is configured in the adapter body.

A pneumatic brake booster having a vacuum chamber and a working chamber in a booster housing separated from one another by an elastic diaphragm. The diaphragm bears in regions against a diaphragm plate axially displaceable between a zero position and a maximum stroke. An axial spacing between the zero position and the maximum stroke defines a stroke range of the brake booster. The diaphragm has a rolling fold which, during the displacement of the diaphragm plate, rolls on a rolling region on an inner wall of the booster housing. In order to offer a solution in which it is the intention for a modular system for different stroke ranges to be formed more efficiently and for the efficiency loss to be minimized or avoided, the booster housing has, in the rolling region, a tapered, conical portion with a cone angle 8 and an axial extent >*stroke range.

A pneumatic brake booster having a vacuum chamber and a working chamber in a booster housing separated from one another by an elastic diaphragm. The diaphragm bears in regions against a diaphragm plate axially displaceable between a zero position and a maximum stroke. An axial spacing between the zero position and the maximum stroke defines a stroke range of the brake booster. The diaphragm has a rolling fold which, during the displacement of the diaphragm plate, rolls on a rolling region on an inner wall of the booster housing. In order to offer a solution in which it is the intention for a modular system for different stroke ranges to be formed more efficiently and for the efficiency loss to be minimized or avoided, the booster housing has, in the rolling region, a tapered, conical portion with a cone angle 8 and an axial extent >*stroke range.

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.

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.

An exemplary brake booster device includes, among other things, a brake booster mounted on a vehicle component, and an actuator that, in response to a force applied to the actuator by a gearbox housing, pivots to move the brake booster upward. The actuator includes at least two pivot elements spaced from each other, and a displacement mounted in a jointed manner between the at least two pivot elements.

In order to minimize spreading, without additional parts, of connecting bolts of a pneumatic brake booster in a manner which is brought about by the deformation of a bearing surface on a booster housing before and during its assembly on a provided vehicle body part, it is proposed that the bearing surface is assigned a planar surface section in an immediately adjacent manner which is configured so as to be plane-parallel with respect to the bearing surface and so as to be axially inwardly recessed on the booster housing with a circumferential step.

In order to minimize spreading, without additional parts, of connecting bolts of a pneumatic brake booster in a manner which is brought about by the deformation of a bearing surface on a booster housing before and during its assembly on a provided vehicle body part, it is proposed that the bearing surface is assigned a planar surface section in an immediately adjacent manner which is configured so as to be plane-parallel with respect to the bearing surface and so as to be axially inwardly recessed on the booster housing with a circumferential step.

A pneumatic brake booster including a booster housing having at least one housing shell. The housing shell is designed to be substantially pot-shaped with a center axis, a base portion and a lateral portion, and the base portion has a curved or conical wall region. In order to offer a brake booster by which it is possible to cost-effectively realize improved adaptability to customer- and application-specific requirements with respect to the spatial connection arrangement, at least one flattened surface area is formed in a radial outer region of the base portion, is designed to be elongate in the circumferential direction and has, at its radial outer edge, at least two notches which are arranged with respect to one another in a defined grid pattern with a circle angle.

A pneumatic brake booster including a booster housing having at least one housing shell. The housing shell is designed to be substantially pot-shaped with a center axis, a base portion and a lateral portion, and the base portion has a curved or conical wall region. In order to offer a brake booster by which it is possible to cost-effectively realize improved adaptability to customer- and application-specific requirements with respect to the spatial connection arrangement, at least one flattened surface area is formed in a radial outer region of the base portion, is designed to be elongate in the circumferential direction and has, at its radial outer edge, at least two notches which are arranged with respect to one another in a defined grid pattern with a circle angle.