PRESSURE REGULATOR FOR VEHICLE DOUBLE-CIRCUIT BRAKE SYSTEM Russian patent published in 2003 - IPC

FIELD: automotive industry; vehicle brake systems. SUBSTANCE: proposed pressure regulator of double-circuit brake system consists of the following main parts: bushing 15 of valve 3 of piston 4 is installed in through stepped channel 2 for travel , and sealing ring 16 of valve 3 of piston 4 is interference-fitted over its outer diameter in recess 26 of end face of spacer bushing8 pointed to bushing 15 of valve 3 of piston 4. Bushing 8 is located between bushing 15 of valve 3 of piston 4 and plug 9 of piston 4 with axial clearance B between bushing 8 and plug 9 and radial clearance M with rod 24 of piston 4 being spring-loaded relative to bushing 15 of valve 3 of piston 4 relative to plug 9 of piston. Seal 27 is installed on outer surface of spacer bushing 8 in contact with surface of through stepped channel 2 of housing 1. Seal of plug 9 of piston 4 relative to housing 1 and relative to piston 4 proper is made in form of seal 28 installed on outer surface of plug 9 of piston 4 and sealing ring 29 installed on outer surface of piston 4. EFFECT: improved reliability of pressure regulator for double-circuit brake system and improved its characteristics and manufacturability. 4 cl, 2 dwg