US 6,648,592 B2 · Centripetal air-bleed system

Abstract

A centripetal-flow airbleed system for a gas-turbine engine including an annular support affixed to first and second disks of a compressor of the engine and having a plurality of peripherally spaced orifices defined along the radius thereof, a plurality of airbleed tubes each mounted in a substantially radial manner in one of the orifices of the annular support, and a vibration reduction device for reducing vibrations of the airbleed tubes. The device includes a plurality of damping tubes each mounted in one of the orifices of the annular support. The radially inner end of the damping tube encloses a portion of the airbleed tube and delimits an annular space defined therebetween.

Claims4

Dependent claims

A centripetal-flow airbleed system for a gas-turbine engine having a compressor including first and second disks comprising:

an annular support affixed to said first and second disks and having a plurality of peripherally spaced orifices defined along the radius thereof;
a plurality of airbleed tubes each mounted in a substantially radial manner in one of said orifices of said annular support;
and
a vibration reducing device including a plurality of damping tubes each mounted in one of said orifices of said annular support and enclosing a radially outer portion of a respective one of said airbleed tubes, a radially inner end of said damping tube enclosing a portion of said airbleed tube and delimiting an annular space defined therebetween.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/157,887Filed 31 May 2002

Priority

FR 01 0712131 May 2001

Published

US 2002/0182059 A15 Dec 2002

Granted

18 Nov 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

F04D 29/582
Cooling ; Heating; Diminishing heat transfer: specially adapted for elastic fluid pumps
F01D 5/082
Cooling fluid being directed on the side of the rotor disc or at the roots of the blades: on the side of the rotor disc
F04D 29/321
For axial flow pumps: for axial flow compressors
F04D 29/668
Especially adapted for elastic fluid pumps: damping or preventing mechanical vibrations

Centripetal air-bleed system

Life of this patent

Centripetal air-bleed system

Life of this patent

Abstract

Claims4