Fuel atomization apparatus for gas turbine engine

Details Fuel atomization apparatus for gas turbine engine Fuel atomization apparatus for gas turbine engine

1986-07-11

1989-06-06

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combustion products generator

60 39141, F02C 100

Patent

active

048359629

ABSTRACT:
An apparatus is provided for use in a gas turbine engine to achieve an efficient atomization of fuel over a wide range of fuel flow rates and engine operating conditions. The apparatus comprises a valve to selectively block the flow of fuel directed to the fuel injector of the engine during the start-up conditions of the engine. The valve, however, will permit the fuel to flow through a mixing apparatus during start-up conditions. The mixing apparatus includes a nozzle into which the fuel is directed. The mixing apparatus also is in communication with a supply of air. The pressure drop created as the fuel passes through the nozzle will draw air into the apparatus and effect mixing of fuel and air. Subsequent passage of the fuel/air mixture through the relatively large passages of the conventional fuel injector will effect good atomization even at low fuel flow rates associated with start-up conditions.

REFERENCES:
patent: 2836036 (1958-05-01), Drage
patent: 3056257 (1962-10-01), Brunkhardt
patent: 3426527 (1969-02-01), O'Connor
patent: 4589260 (1986-05-01), Krockow

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