Fixed arc squeeze film bearing damper

Details Fixed arc squeeze film bearing damper Fixed arc squeeze film bearing damper

1998-12-28

2000-10-24

Hannon, Thomas R.

Bearings

Rotary bearing

Hydraulic or pneumatic bearing support

384581, F16C 2704

Patent

active

061356395

ABSTRACT:
A squeeze film damper (SFD) assembly whose chamber configuration reduces or eliminates the tendency for a bistable condition in a turbo machine shaft, such as the rotor shaft of a gas turbine engine. The SFD assembly generally entails a housing having a chamber whose wall circumscribes and contains a bearing assembly by which a shaft is rotatably supported. The bearing assembly is prevented from rotating with respect to the housing, but is otherwise free to move within the housing. An annulus is defined between the chamber wall and bearing assembly, and a fluid is contained within the annulus to support and damp the bearing assembly and its shaft. The chamber wall of the housing is not uniformly cylindrical, but instead is defined by at least two nonconcentric cylindrical wall portions.

REFERENCES:
patent: 3844630 (1974-10-01), Lechner
patent: 4214796 (1980-07-01), Monzel et al.
patent: 4222617 (1980-09-01), Romberg
patent: 5149206 (1992-09-01), Bobo
patent: 5316391 (1994-05-01), Monzel
patent: 5344239 (1994-09-01), Stallone et al.
patent: 5803612 (1998-09-01), Battig

Affiliated with

Also associated with

Rating

Fixed arc squeeze film bearing damper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fixed arc squeeze film bearing damper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fixed arc squeeze film bearing damper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1957444