BRAKE SYSTEM OF AUTOMOTIVE VEHICLE Russian patent published in 1995 - IPC

FIELD: automobile brake systems. SUBSTANCE: brake system has pneumatic follow-up servomotor operated by pedal 28 and designed for mounting on dashboard 46; servomotor has coaxially arranged front housing 14 with cylindrical wall and rear cover 16, and two chambers 18, 20 arranged inside and hermetically divided by piston 22 which has diaphragm 26 providing hermetic sealing of chambers; system has also master cylinder 10 secured on front housing 14 and at least one brake pedal 28. Housing 14 and cover 16 have peripheral radial beads. Bead 52 of cover rests directly on housing bead 50 thrusting against dashboard 46 from cab side; cover 16 has circular alignment projection 56 getting into servomotor. Inner edge of projection radially presses peripheral edge of diaphragm 26 to wall of cylinder of housing 14. Made on outer surface are many parallel ribs 36 some of which form supporting parts 34 of axle 32 of pedal 28. EFFECT: enhanced quality of operation. 4 cl, 1 dwg