Patent ID: 6530463
Filing Date: 2003-03-11
Classification: F16H

Abstract:
A transmission hating at least one clutch (3, 4) hydraulically disengageable, against a spring force, by a respective actuating device (6, 7) connectable with a feed line (14) and the at least one clutch (3, 4) is engageable by the spring force while the respective actuating device (6, 7) is connectable with a return line (15) which communicates with at least one accumulator (17, 24) and with a hydraulic reservoir (21), via a throttle point (22, 25), so that hydraulic medium conveyed to the at least one accumulator (17, 24) and existing in the respective actuating device (6, 7) drains through the throttle point (22, 25);wherein the respective actuating device (6, 7) communicates with the return line (15), the return line (15) is in direct communication with the hydraulic reservoir (21) and, upon the respective actuating device (6, 7) reaching a previously defined pressure level, the hydraulic medium in the return line (15) and in the at least one accumulator (17, 24) drains into the hydraulic reservoir (21) exclusively through the throttle point (22, 25); and the at least one accumulator (17, 24) is a spring accumulator which has one piston (26), and a front face of the piston (26) is connected with the return line (15) of the respective actuating device (6, 7) and an opposite face of the piston is connected with the hydraulic reservoir (21).