Power plants – Reaction motor – Interrelated reaction motors
Reexamination Certificate
2002-09-30
2004-07-27
Freay, Charles G. (Department: 3746)
Power plants
Reaction motor
Interrelated reaction motors
C060S262000, C060S799000, C060S801000, C415S119000, C181S214000, C181S222000
Reexamination Certificate
active
06766639
ABSTRACT:
BACKGROUND OF THE INVENTION
(1) Field of the Invention
The present invention relates to an acoustic-structural low-pressure compressor (LPC) splitter assembly constructed so as to reduce weight and increase structural support. More specifically, this invention relates to an acoustic-structural LPC splitter assembly providing integral support for a plurality of low-compressor bleed exhaust ports.
(2) Description of the Prior Art
A gas turbine splitter is located axially downstream of the engine's fan stage. The fan exit stream air is “split” by the splitter assembly into two flow streams: core flow and bypass flow.
A standard gas turbine splitter assembly consists of: the splitter nose, acoustic panel cowling, low-compressor bleed exit duct, and low-pressure compressor (LPC) stator case support structure. This configuration consists of a large quantity of parts and is heavy, especially on large thrust engines. The low-compressor bleed is used during engine starting and surge conditions.
What is needed is a gas turbine splitter assembly that is strong enough to withstand the gas loading of fan exit streams and maneuver loading, covered with acoustic material to attenuate fan noise, and is lightweight.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide an acoustic-structural LPC splitter assembly providing integral support for a plurality of low-compressor bleed exhaust ports.
In accordance with the present invention, an acoustic-structural splitter assembly for use in an engine which comprises a structural acoustic splitter through which are arranged a plurality of bleed exhaust ports, the acoustic splitter having a first and second end, an inner and outer surface, a front joint for securing the first end, and a slip joint formed at an FEGV interface for securing the second end, wherein the structural acoustic splitter provides support sufficient to maintain concentricity of an LPC inner case.
REFERENCES:
patent: 3477231 (1969-11-01), Paulson
patent: 3542152 (1970-11-01), Adamson et al.
patent: 5222360 (1993-06-01), Antuna et al.
patent: 5307623 (1994-05-01), Antuna et al.
Bachman & LaPointe P.C.
Freay Charles G.
United Technologies Corporation
LandOfFree
Acoustic-structural LPC splitter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acoustic-structural LPC splitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic-structural LPC splitter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3229446