Patent ID: 9457779
Filing Date: 2016-10-04
CPC Classification: B60T

Claim Text:
1. A primary piston component for a master cylinder of a hydraulic brake system, comprising: a primary piston housing adapted to be at least partially movable into a pressure chamber of the master cylinder, a cavity being formed at a back side of the primary piston housing, and at least one continuous aperture being formed at an inner side of the cavity directed toward a front of the primary piston housing; an additional piston component; and an inner piston body extending through the cavity along a central line of the primary piston component, the inner piston body being adapted to be arranged close to at least one first braking force transfer element such that a braking force applied to a brake actuating element is transferable at least partially via the at least one first braking force transfer element to the inner piston body, and the inner piston body contacting the primary piston housing such that the braking force is transferable at least partially to the primary piston housing, wherein the additional piston component is at least partially movable into the cavity between the inner piston body and the primary piston housing, wherein the additional piston component is adapted to be arranged close to at least one of (i) a brake booster and (ii) at least one element acted upon by the brake booster, such that a brake booster force provided by the brake booster is transferable at least partially to the additional piston component, which contacts the inner piston body such that the brake booster force is transferable at least partially via the inner piston body to the primary piston housing, and wherein the at least one element acted upon by the brake booster includes at least one of (i) the at least one first braking force transfer element and (ii) at least one second braking force transfer element.