Kelsey-Hayes Company

Norbert Sternal

Patrick H Hool

Glenn R Gualdoni

Serge G Avenel

Frank P Lubischer

A vehicle brake system including a wheel brake and a master cylinder operable to provide pressurized fluid to the wheel brake. The master cylinder includes a housing having a bore formed therein, and further including a piston slidably disposed in the bore. The brake system further includes a fluid reservoir in selective fluid communication with the bore of the master cylinder. The brake system also includes an isolation valve movable between an open position, wherein fluid is permitted to flow between the master cylinder and the wheel brake, and a closed position, wherein fluid is restricted from flowing between the master cylinder and the wheel brake. The brake system further includes a dump valve movable between a closed position, wherein fluid is prevented from flowing between the wheel brake and the reservoir, and an open position, wherein fluid is permitted to flow between the wheel brake and the reservoir. The brake system additionally including a cut-off valve movable between an open position, wherein fluid is permitted to flow between the dump valve and the reservoir, and a closed position, wherein fluid is restricted from flowing between the dump valve and the reservoir.

Growing community of inventors

Troy, MI, United States of America

Norbert Sternal