초록 ▼

A control device makes it possible to rapidly shift the bleed valves of an aircraft turbojet engine to a large opening position when the engine is under low power operation in order to prevent flame-out. The device allows for instantaneously interrupting the action of a control return cable when the

A control device makes it possible to rapidly shift the bleed valves of an aircraft turbojet engine to a large opening position when the engine is under low power operation in order to prevent flame-out. The device allows for instantaneously interrupting the action of a control return cable when the valves are open from a certain given value. The device includes a drive support integral with a crank handle, in order to bring about the translation of the return cable, when the latter is not blocked by a translation stop member. The control device is used for opening of bleed valves of turbojet engines having two concentric annular jets.

대표청구항 ▼

Device for controlling the opening and closing of a bleed valve in a doubleflow turbojet engine using a motor mechanism and a control and regulating mechanism actuating the bleed valve according to a given curve, comprising: a lever system connected to said bleed valve, a return cable connected to s

Device for controlling the opening and closing of a bleed valve in a doubleflow turbojet engine using a motor mechanism and a control and regulating mechanism actuating the bleed valve according to a given curve, comprising: a lever system connected to said bleed valve, a return cable connected to said lever system, said return cable indicating an opening position of the bleed valve, said cable being connected to the control and regulating mechanism and providing a bleed valve position feedback signal to the control and regulating mechanism, and a mechanism immobilizing the return cable so as to provide a false feedback signal to the control and regulating mechanism as to the position of the bleed valve when the valve is open beyond a given value, so that the control and regulating mechanism does not operate the valve in accordance with said given curve when the valve is open to said value.