Patent ID: 7823984

Claim:
A master brake cylinder arrangement for a hydraulic motor vehicle brake system having a housing defining first and second bores adjacent to one another, said housing further defining third and fourth bores; a first piston received in said first bore such that it is displaceable along a first longitudinal bore axis, wherein said first piston delimits a first pressure chamber with said housing, said first pressure chamber adapted to be fluidically connected to a hydraulic brake system, a second piston received in said second bore such that it is displaceable along a second longitudinal bore axis, wherein said second piston delimits a second pressure chamber with said housing, said second pressure chamber adapted to be fluidically connected to the hydraulic brake system; a force input piston adapted to be coupled to a brake pedal and which is received in said third bore of said housing and is displaceably guided along an actuating axis, wherein said force input piston delimits a third pressure chamber with said housing, wherein said master brake cylinder arrangement is adapted to be actuated such that movement of said input piston causes an increase of pressure within said third pressure chamber; and a transmission element slidably disposed in said housing and arranged between said first and second pistons and said force input piston for transmitting forces from said force input piston to said first and second pistons, wherein said transmission element is provided with a bearing surface adjacent a wall of said fourth bore for distributing transverse forces acting on said transmission element by said first and second pistons to said housing.