ES1022156U - Master cylinder for brake circuits (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Master cylinder for circuits brakes, comprising a housing tubular within which axially around a main piston, by action of the brake pedal, whose case has a mouth of previous departure and an inlet osterior, wherein takes the quoted piston mounted a control valve extreme delimiting within the cylinder, together with said piston, four chambers, an annular former principal, an annular rear auxiliary, one home previous back central and auxiliary central; previous annular chambers and whose are limited back wall between housing and external surface of the valve body control and piston, respectively, and are separated by the head of said piston; and whose previous inner chambers and back are limited, among the valve command and the fund and wall casing the first of them and a dump axial presenting the piston and remaining frontally closed by the pilot valve, which serves as separation between the two chambers; communication being constantly in the central mouth with camera back out front and back central chambers and void and with each other mouth rear entrance; while the camera back void this or not in communication with the mouth of radial entrance to occupy the piston, respectively, their retracted position, inactivity brake pedal, or be displaced in the meaning of advance, by acting on said pedal; including valve control means close and open communication between the anterior chambers void and central at the same time that opens and closes respectively communication between void cameras above and central back, up or down the pressure within the cylinder relative a benchmark, by operation of action or released brake pedal. (Machine-translation by Google Translate, not legally binding)