VEHICLE GEARBOX AND CLUTCH COMBINED CONTROL SYSTEM Russian patent published in 1995 - IPC

FIELD: transport engineering. SUBSTANCE: system has gear shift 6 pneumatic cylinder and tracking clutch drive booster 3. Cylinder hollows are connected with air distributor 7. Booster 3 is provided with pneumatic cylinder 14 and has constant income of compressed air from outer source. Piston 15 of pneumatic cylinder 14 has sealing member 16. Main line 17 links air distributor 7 input and pneumatic cylinder 14. For this purpose a hole is made in pneumatic cylinder 14 body. Hole is displaced for the value of full motion necessary for clutch release from sealing member 16. After booster pneumatic cylinder 14 piston passes space necessary for complete clutch release, edge of its sealing member crosses the hole on pneumatic cylinder body surface. Due to it compressed air from working hollow of booster pneumatic cylinder 14 through the mentioned hole and main line 17 is fed to air distributor 7 input and then into hollows of gear shift 6 pneumatic cylinder realizing gear shift. EFFECT: enhanced security and reduced metal usage. 1 dwg