| 摘要 |
Actuator (5) for hydraulic control (2) of a transmission system (1), comprising: - a body (10) at least partially delimiting a chamber (12), the body (10) having a first opening (15) capable of placing the chamber (12) and a low-pressure reservoir in fluid communication, and a second opening (18) capable of placing the chamber (12) and a high-pressure pipe (8) in fluid communication, - a piston (20) capable of moving in the chamber (12) between a first position and a second position, - an electric motor (22) capable of moving the piston (20) at least from the first position to the second position, and - a sealing system (60, 65) capable of selectively interrupting the fluid communication between the chamber (12) and the at least one low-pressure reservoir and the high-pressure pipe (8), the chamber (12) being in fluid communication with the low-pressure reservoir and with the high-pressure pipe (8) when the piston (20) is in the first position, and the chamber (12) being in fluid communication with the low-pressure reservoir without being in fluid communication with the high-pressure pipe (8) when the piston (20) is in the second position. |
