FIELD: engine building.
SUBSTANCE: oil system of a gas turbine engine belongs to the field of aircraft engine building and provides a decrease in the failures of the injection pump by removing the airlock formed in it. Removal of the air lock from the gear cavity of the injection pump is ensured by manufacturing the injection and evacuation pumps in one block of oil pumps and the presence of an air bleeding device made in the form of a channel with a nozzle located between the outlets of the injection and evacuation pumps.
EFFECT: as a result of the use of a simple and reliable device for bleeding an air lock, it is possible to eliminate failures of the injection pump for supplying oil to a gas turbine engine and increase the reliability of its operation as a whole.
3 cl, 1 dwg
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