| 摘要 |
The actuator according to the invention comprises a tubular body (1) with a cylindrical bore (2) inside which slides a piston (3), and a device (37, 28, 28') for converting the straight-line movement of the piston (3) into a rotational movement of an operating shaft (26), housed entirely in the said bore (2) and actuated directly by the piston (3). The operating shaft (26) passes through a substantially radial orifice of the body, and the conversion device comprises a connecting rod (28, 28'), the ends of which are respectively articulated on the piston (3) and on a lever integrally connected to the operating shaft (26). …<??>This actuator can serve to control a butterfly valve. …<IMAGE>… |
