Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1981-10-29
1984-06-19
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
60748, 60 3931, F02C 720, F02G 300
Patent
active
044547110
ABSTRACT:
A self-aligning fuel nozzle assembly is provided for maintaining the alignment of a swirler member and a fuel nozzle upon displacement of the combustor liner relative to the combustor housing of a combustion chamber assembly in a turbine engine. The self-aligning fuel nozzle assembly mounts the swirler member to the combustor liner by a device having six degrees of freedom including a ball and socket joint which is placed within a structure so as to permit movement in the three main Cartesian directions of a rectangular axis system. The combustor liner is installed within the combustor housing in such manner that the fuel nozzle is slidably received within the swirler, with the swirler being biased against the fuel nozzle by a helical spring member forming part of the assembly. The self-aligning fuel nozzle assembly reduces the development of local stresses between the swirler and the fuel nozzle so that wearing between these parts is reduced. The swirler member and fuel nozzle are retained in aligned positions so that the self-aligning fuel nozzle assembly promotes improved fuel economy in the engine.
REFERENCES:
patent: 2885943 (1959-05-01), Divizia
patent: 3403510 (1968-10-01), Lauck
patent: 3879940 (1975-04-01), Stenger et al.
patent: 4261347 (1981-04-01), Spencer et al.
patent: 4275843 (1981-06-01), Moen
patent: 4365470 (1982-12-01), Matthews et al.
Avco Corporation
Casaregola Louis J.
Gelling Ralph D.
Thorpe Timothy S.
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