Start flame igniter of the combustion chamber of a gas-turbine e

Details Start flame igniter of the combustion chamber of a gas-turbine e Start flame igniter of the combustion chamber of a gas-turbine e

1977-01-26

1978-10-24

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

Combustion products generator

60 3982S, 431263, 431264, F02C 726

Patent

active

041214196

ABSTRACT:
A start flame igniter of the combustion chamber of a gas-turbine engine has a housing with an injector for spraying fuel supplied to a combustion chamber of the igniter. Located inside the igniter housing are a spark plug in such a way that a discharge zone of the spark plug contacts the fuel sprayed by the injector and a cylindrical bushing which is coaxial to the spark plug and partially embraces said spark plug at the side where the spark plug discharge zone is situated. The length of the bushing is sufficient to ensure a direct contact with the fuel sprayed by injector at a minimum cone of the fuel spray relative to the operation duty of the injector. The bushing butt facing the sprayed fuel has an inclination which coincides approximately with a generatrix of the minimum cone of the fuel spray. The bushing butt is provided with a plate following the shape of a half of butt nearest to the injector. The plate along the axis has a recess embracing the discharge zone of the spark plug. In addition the housing has a duct for supplying air to the combustion chamber of the igniter and a branch for connecting the combustion chamber of the igniter with the combustion chamber of the engine.

REFERENCES:
patent: 1887730 (1932-11-01), Macrae et al.
patent: 2941363 (1960-06-01), Cuny et al.

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