FIELD: engines and pumps.
SUBSTANCE: invention is related to combustion chambers of gas-turbine engines, in particular, to protection of fuel header and nozzles against coking, and may be used in aircraft engine manufacturing, power machine building and other engineering fields, where gas-turbine units are used. Fuel header with nozzles of gas-turbine engine comprises body with heat-shielding device and nozzle bodies connected to header body with fuel supplying channels, and spraying parts assembled in them, at that header body is made of annular parts connected to each other with creation of at least one fuel distributing channel, which is hydraulically communicated with fuel distributing channels of nozzle bodies, at that screens are fixed to header body with creation of air or vacuum cavity around external surface of body, and in fuel supplying channels of nozzle bodies there are bushes fixed for fuel passage with creation of annular vacuum cavities between them and nozzle bodies wall.
EFFECT: invention makes it possible to increase reliability of fuel header operation.
3 cl, 4 dwg
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Authors
Dates
2009-07-20—Published
2007-12-25—Filed