Back to results
US 5,201,585 AGranted
Fluid film journal bearing with squeeze film damper for turbomachinery
AssigneeGeneral Electric Company
InventorsBruce E. Gans, John H. Vohr
Life of this patent
Estimating the term…
Abstract
An improved fluid film bearing having a squeeze film damper tailored to the dynamic vibration characteristics of a turbomachine. Compact cantilevered spring bars support the squeeze film damper and thin fluid film bearing surface against the rotor shaft. The spring bars fit compactly within the bearing. The squeeze film damper includes oil plenums that provide a reservoir of fluid and prevent air from entering the damper and thin fluid film.
Claims13
A bearing for a rotatable shaft comprising:
- a journal bearing having a cylindrical bearing surface supporting a journal surface of said shaft,
- a spring support having a cylindrical surface supporting said journal bearing, a plurality of spring bars extending radially outward of said cylindrical surface, and
- a stationary ring assembly around said spring support having an annular inner surface supporting said spring bars.
A bearing for a rotor shaft comprising:
- a journal bearing having a cylindrical bearing sleeve supporting a journal surface of said shaft, said bearing having a fluid film between said sleeve and journal surface;
- an annular spring support supporting said journal bearing comprising a cylindrical surface adjacent said journal bearing, flanges extending radially outward from said cylindrical surface and resilient spring bars extending axially from said flanges and positioned radially outward of said cylindrical surface, said spring bars having feet extending radially outward on said bars at a position distant from where the bars attach to said flange;
- and
- a stationary ring assembly around said spring support and having an inner surface in contact with said feet of the spring bars, said spring support being flexibly mounted within said ring assembly.
1 more element
A bearing for a rotatable shaft comprising
- a journal bearing having a cylindrical bearing sleeve supporting a journal surface of said shaft, said bearing having a fluid film between said sleeve and journal surface;
- an annular spring support supporting said journal bearing comprising a cylindrical surface adjacent an outer cylindrical surface of said journal bearing, flanges extending radially outward from said cylindrical surface and resilient spring bars extending axially from said flanges and feet positioned radially outward on said bars at a position distant from where the bars attach to said flange;
- and
- a stationary ring assembly around said spring support and having an inner surface in contact with said feet of the spring bars, said spring support being flexibly mounted within said ring assembly.
1 more element
Dependencies are inferred from the claim text.