F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/113
F02C 7/22 (2006.01) F23R 3/10 (2006.01) F23R 3/28 (2006.01) F23R 3/60 (2006.01)
Patent
CA 1188900
- 27 - ABSTRACT OF THE DISCLOSURE 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 de- vice 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 re- duces 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 re- tained in aligned positions so that the self-aligning fuel nozzle assembly promotes improved fuel economy in the engine.
413663
Avco Corporation
Ridout & Maybee Llp
LandOfFree
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