Robert Boschgmbh

Alain Benoit

Laurent Lhuillier

Bastien Cagnac

Masaki Shiwa

A primary piston component for a master cylinder of a hydraulic brake system includes a primary piston housing and an additional piston component, which is configured to be at least partially movable into a cavity of the primary piston housing. An inner piston body extends through the cavity along a central line of the primary piston component. A braking force applied on a brake actuating element is transferable at least partially on the inner piston body, and further on the primary piston housing. The additional piston component is at least partially movable into the cavity between the inner piston body and the primary piston housing, and a brake booster force is transferable at least partially on the additional piston component, and via the inner piston body on the primary piston housing. A method of operating a hydraulic brake system is also described.

Primary piston component for a master cylinder of a hydraulic brake system and method of operating a hydraulic brake system

In order to allow a single operator on a vehicle assembly line to attach a brake servo to a bulkhead by moving round from the engine compartment side to the passenger compartment side, a brake servo is fitted with an adhesive and insulating seal (). This seal has two adhesive faces and each of the two adhesive faces has a protective film provided with a tab (); each protective film is of a distinctive color. One of the two protective films has cuts () along holes () in the seal, these cuts being intended to make it easier for the protective film to be removed as the brake servo is mounted against the bulkhead.

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Sevran, France

Alain Benoit