DEVICE FOR ACTUATING AT LEAST A PISTON AND METHOD FOR DETECTING FAILURE IN A DEVICE

摘要

The invention concerns a device (1) for actuating at least a piston (2) longitudinally mobile in the bore (3) of a body (4), the piston (2) being mobile under the action of a longitudinal or curved movement (F2) of a control arm (5). The invention also concerns a method for detecting failure in a device (1). The device (1) comprises an intermediate element (6), located between the piston (2) and the control arm (5), said intermediate element (6) also serving as warning means if said intermediate element (6) is not present between said piston (2) and said arm (5). The invention is particularly useful in the field of diagnosis.