Airbus Helicopters

Mathilde Chouteau

Romuald Biest

Gérard Couderc

A system () having a control plate () for controlling the pitch of the blades () of a propeller, a power block (), and a directional control valve () for feeding said power block () with fluid. The power block () is sealed and includes at least a body in which at least one piston () that is secured to a piston rod () projecting from said body () is movable in translation, a repeater rod () connecting said piston rod () to said control plate (). The control valve () is sealed and comprises a stationary manifold () and a movable manifold () that is movable in rotation, said stationary manifold () being controlled by a control lever () connected by repeater means () to said repeater rod (). A respective pipe () connects each chamber () of said power block () to said movable manifold ().

Growing community of inventors

Saint Grégoire, France

Mathilde Chouteau