Valve for fluid supply circuit in rocket engine, has epicyclic gear including outlet portions coupled to inlet portions and shutter, so that shutter is controlled by pneumatic actuator and/or electric actuator

摘要

The valve (1) has a dual mode actuating system (3) including a pneumatic actuator (20), an electric actuator (30), and an epicyclic gear (40) having two degrees of freedom. The epicyclic gear includes an inlet portion (41) coupled to the pneumatic actuator, another inlet portion (42) coupled to the electric actuator, and outlet portions (43, 44) coupled to the inlet portions and a shutter (10), so that the shutter is controlled by the pneumatic actuator and/or the electric actuator, where a transmission ratio between the latter inlet portion and the outlet portions is less than 1. An independent claim is also included for a method for controlling a valve for a fluid supply circuit.