BRAKE PNEUMATIC DRIVE DEVICE

摘要

FIELD: mechanical engineering; pneumatic brakes of automobiles. SUBSTANCE: device of brake pneumatic drive has at least one follow up member and two-seat valve controlled by this member which selectively communicates outlet pressure space with receiver space or atmosphere and made in form of movable sealed rod with support surfaces in contact with seats. According to invention, mean diameters of contact patterns do not differ from diameter of rod seals by more than 8%. EFFECT: improved serviceability of pneumatic brake system without affecting response of device with preservation of its static characteristics. 3 dwg