Variable flow-restricting device and method

摘要

A variable flow-restricting and apportioning device for an aircraft ejector rack system having a pair of fluid-actuated thrusters includes a pair of rotatable feed conduits 30 for supplying pressurized fluid to the thrusters. Each feed conduit has an exit flow passage at its exit end 72 which is eccentric relative to the longitudinal axis about which the conduit is rotatable, and the exit end of each feed conduit slidably fits into a female receptacle in a receiver 34 in fluid commmunication with one of the thrusters. Each receptacle includes a mating face 64 therein which has a receiver port 66 for supplying fluid to the respective thruster. The receiver port is eccentric relative to the rotational axis of the feed conduit. Rotating each feed conduit relative to the respective receiver causes varying degree of overlap between the eccentric exit flow passages and the eccentric receiver ports, thereby defining variable-size flow orifices at each receiver.