Power plants – Combustion products used as motive fluid – Plural combustion products generators in ring coaxial with...
Patent
1994-02-16
1994-10-11
Thorpe, Timothy S.
Power plants
Combustion products used as motive fluid
Plural combustion products generators in ring coaxial with...
60756, F23R 350
Patent
active
053535871
ABSTRACT:
A film starter structure for a combustor of a gas turbine engine which includes a plurality of circumferentially spaced, axially extending ribs formed on a radially inner surface of a forward section of an outer combustor liner adjacent a combustor dome. An annular ring overlays the ribs for defining a plurality of air passages. A support extends from the combustor dome and supports the outer liner about the dome. Compressor discharge air is introduced into the air passages and exits the air passages along the inner surface of the outer liner for establishing a cooling film barrier on the outer combustor liner surface. A spring seal between the combustor dome and the inner ring seats the dome within the ring and establishes a seal for preventing leakage air therebetween and allowing independent radial expansion of the liner and dome by compressing the spring seal. The liner and dome structure are further arranged to allow assembly using flanges and split rings so as to eliminate placement of bolted connections in critical air flow paths.
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General Electric Company
Narciso David L.
Squillaro Jerome C.
Thorpe Timothy S.
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