Patent Application
20080073154
The overall oil assembly is denoted by numeral 10. Numeral 12 is representative of the outer housing of the gas turbine engine, whereas numeral 14 is globally representative of the bearing housing. A monocase 16 extends between outer ring 12 and bearing housing 14. These components are well known in the art and a further description is deemed unnecessary.
In the arrangement, an oil supply tube 18 which is continuous and uninterrupted with respect to fluid flow, extends between ring 12 and bearing housing 14. The oil supply tube 18 is disposed within the bearing housing 14 via the monocase 16 to a point extraneous and exterior of ring housing 12, the point being generally denoted by numeral 20. Oil supply tube 18 is releasably fixedly secured to an oil support member 24. Oil support number 24 is releasably and fixedly secured within the interior of housing 14 via a post or connection number 26. An opposed end 28 of oil supply tube 18 is connected to an oil supply tube support 30. The tube and 28 may be releasably fixedly secured to support 30 by welding. A tube coupling member 32 is subsequently connected to support 30 to provide coupling with an oil supply line (not shown).
By providing the arrangement set forth in the example, the result is essentially a tube point connection system for the oil supply tube from the point of coupling to the point of the oil nozzle support. This has significant advantage in terms of preventing other possible areas for leakage and further provides for an expedited and straight forward removal for repair or replacement of the entire assembly or sections therefore. In terms of retro-fit or installation procedures, the indication herein where members are fixedly secured can be achieved by welding. In order to modify the bearing casing 14, it will be understood that the post or connection site 18 can simply be effected by drilling a cavity within bearing housing 14 to accommodate a post 26. In order to mount the support 34 to the ring housing 12 may be provided with an access area simply by machining or drilling into the ring casing 12 with subsequent welding at suitable locations to effect securement.
The above description is meant to be exemplary only, and one skilled in the art will recognize that changes may be made to the embodiments described without department from the scope of the invention disclosed. Still other modifications which fall within the scope of the present invention will be apparent to those skilled in the art, in light of a review of this disclosure, and such modifications are intended to fall within the appended claims.
