Apparatus and method for bearing lubrication in turbine engines

Details Apparatus and method for bearing lubrication in turbine engines Apparatus and method for bearing lubrication in turbine engines

2007-10-09

2007-10-09

Fenstermacher, David M. (Department: 3682)

Lubrication

Systems

Crank-type machines

C184S006110

Reexamination Certificate

active

10797844

ABSTRACT:
A lubrication system includes an inlet conduit having an inboard end attached to a bearing support and an outboard end for receiving lubricant. A lubricant inlet assembly is attached to the inlet conduit outboard end and has an inlet cap with a receptacle, an inlet cap body, and a cap base. The inlet receptacle is configured to mate with a lubricant supply line, where the inlet cap body has an outer cap enclosing an inner cap, the outer cap having a convoluted wall. An inlet conduit termination fitting has an outboard fitting section, with an o-ring in a circumferential groove, disposed inside the inlet cap, and an inboard fitting section attached to the inlet conduit outboard end. A cap heat shield encloses the inlet cap and a conduit heat shield is attached to the inlet conduit. The lubricant inlet assembly is mounted to an engine casing with a low-conductivity insulating gasket between the cap base and the engine casing.

REFERENCES:
patent: 3312448 (1967-04-01), Hull, Jr. et al.
patent: 3884110 (1975-05-01), Leonard
patent: 4972671 (1990-11-01), Asselin et al.
patent: 5316346 (1994-05-01), Maurer
patent: 5746574 (1998-05-01), Czachor et al.
patent: 6102577 (2000-08-01), Tremaine
patent: 6438938 (2002-08-01), Burkholder et al.
PCT International Search, Report PCT/US2005/008030, Dec. 22, 2005.

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