Patent ID: 9115733
Filing Date: 2015-08-25
Classification: F15B,G01L

Abstract:
1. A servo-control having at least one body defining an inside space and a slider element having a control piston suitable for sliding in the inside space, the control piston subdividing the inside space into a retraction chamber and an extension chamber suitable for being fed with a fluid delivered by a source, the servo-control having at least one limit force detector device for detecting a limit force exerted on the servo control, wherein the limit force detector device comprises: a casing secured to the body and defining a detection space; a movable member slidable in the detection space, the movable member subdividing the detection space into a first detection chamber opening out to the inside space and a second detection chamber connected to a pressurization means via a first head loss generator means; and detector means for detecting the position of the movable member in the detection space in order to determine whether the movable member has reached a predetermined limit position corresponding to the presence of a limit force being exerted on the servo-control, the detector means including a warning means controlled by the detector means; wherein the at least one limit force detector device is a first detector device having the first detection chamber opening out to the retraction chamber of the servo-control, and a second detector device having the first detection chamber opening out to the extension chamber of the servo-control.