| 摘要 |
FIELD: mechanical engineering; tractors and automobiles; brake control systems. SUBSTANCE: brake hydraulic system has quick-acting valves installed in brake circuits which provide rising and drop of liquid pressure at braking in conformity with redistribution of masses among wheel axles, i.e. control of brake forces. For this purpose control line and return line are made in walls of quick-acting valve and spaces made in valve accommodate chambers with coaxial control rod, slider with plunger, shutoff valve with piston in which throttle hole is made. All above-indicated parts are spring-loaded and can execute directed reciprocating movements. Their combined operation provides pulsating movement of liquid in control line and rising and drop of pressure in valve chambers, hydraulic system and wheel brake cylinders providing pulsed braking. EFFECT: prevention of skidding and loss of control owing to prevention of wheel locking. |
