Gas turbine igniter with ball-joint support

Details Gas turbine igniter with ball-joint support Gas turbine igniter with ball-joint support

1988-12-27

1990-02-27

Stout, Donald E.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

60 39827, 431264, F02C 7266

Patent

active

049034766

ABSTRACT:
An igniter for a combustor of a gas turbine engine includes a body section mounted on a ball joint within a standoff cylinder. The standoff cylinder, in turn, is mounted on the casing of the combustor. An electrode tip, extending from the body section if tightly fitted into a hole in the combustor liner. The ball joint permits substantial transverse motion of the electrode tip to fit it through the hole during installation of the igniter, and to track the position of the hole if it should move relative to the casing due to differential thermal expansion during operation of the combustor. Seals between mating parts prevents the leakage of air from the interior of the casing.

REFERENCES:
patent: 2880792 (1959-04-01), Raskin
patent: 3007312 (1961-11-01), Shutts
patent: 3879940 (1975-04-01), Stenger et al.
patent: 3908361 (1975-09-01), Gardiner
patent: 3924403 (1975-12-01), Irwin
patent: 4216651 (1980-08-01), Ormerod
patent: 4275559 (1981-06-01), Blair
patent: 4441323 (1984-04-01), Colley
patent: 4470799 (1984-09-01), Riggs
patent: 4730979 (1988-03-01), Hook Jr.

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