초록 ▼

An actuator cylinder for the engagement and release of the friction clutch of a motor vehicle is described. The actuator has a device to indicate clutch engagement position, which is located outside the cylinder. A piston is disposed within the actuator cylinder. The piston has an actuator rod which

An actuator cylinder for the engagement and release of the friction clutch of a motor vehicle is described. The actuator has a device to indicate clutch engagement position, which is located outside the cylinder. A piston is disposed within the actuator cylinder. The piston has an actuator rod which extends through a cylinder end to operate a clutch. The device to detect the engagement position of the clutch is designed to adjust to the range of movement of the piston, which range of movement changes with clutch wear. The detection device is a displacement transducer. A housing, in which the transducer is mounted, moves as the range of motion of the piston changes with clutch wear. A rod or sensor mounted on the piston both interacts with the transducer to indicate the clutch engagement position and moves the housing of the transducer.

대표청구항 ▼

[ What is claimed is:] [16.] An actuator for a friction clutch of a motor vehicle, said actuator comprising:a cylinder housing;said cylinder housing comprising a cylinder;said cylinder comprising a pressure chamber;piston means for being displaced within said cylinder;actuator output means for movin

[ What is claimed is:] [16.] An actuator for a friction clutch of a motor vehicle, said actuator comprising:a cylinder housing;said cylinder housing comprising a cylinder;said cylinder comprising a pressure chamber;piston means for being displaced within said cylinder;actuator output means for moving the friction clutch to at least one position;said actuator output means being connected to and moving with said piston means;means for detecting at least one position of said clutch disengagement system;said detection means being disposed outside said cylinder housing;said detection means being disposed immediately adjacent to said cylinder housing;said piston means having a total range of motion within said cylinder;said piston means having a working range of motion to engage and disengage the clutch between a fully engaged position and a fully disengaged position, the fully engaged position and the fully disengaged position of the working range of motion of said piston means being changeable upon wear of the clutch;the working range of motion of said piston means being within the total range of motion of said piston means;said detection means comprising a displacement transducer housing;said detection means comprising a displacement transducer;said displacement transducer being disposed within said displacement transducer housing;said displacement transducer having a range of motion for transduction, the range of motion for transduction corresponding substantially to the working range of motion of said piston means to engage and disengage the clutch;said detection means comprising means for moving the position of said displacement transducer housing; andsaid means for moving said displacement transducer housing comprising means for moving said displacement transducer to maintain the range of motion for transduction of said displacement transducer to continuously correspond substantially to the working range of motion of said piston means to engage and disengage the clutch as the working range of motion of said piston means changes with wear of the clutch.