COMPACT DOSING DEVICE FOR INJECTOR WITH TWO FUEL CIRCUITS FOR AIRCRAFT TURBO DEVICE Russian patent published in 2018 - IPC F02C7/232 F02C9/26 

FIELD: fuel combustion devices.

SUBSTANCE: group of inventions relates to a dosing fuel device for a fuel injector of an aircraft turbo device, as well as to a combustion chamber of an aircraft turbo device and to a turbo device. Dosing device comprises: a fuel supply opening, a movable sealing element for sealing the opening, and an elastic return means configured able to cause movement of the sealing element towards the closed position, in which the element seals the said opening, the element is configured able to be displaced from the closed position. Dosing device comprises a first outlet intended to communicate with the first circuit of the injector, and a second outlet to communicate with the secondary circuit of the injector. In addition, such a design is used that, up to a certain level of displacement of the movable sealing element, the latter passes fuel coming from the opening, so that it reaches the first mentioned outlet, and only beyond a certain level of displacement, the element passes fuel coming from the opening, so that it reaches the second opening.

EFFECT: group of inventions allows to reduce friction between two valves.

9 cl, 7 dwg