Split ring wedge bearing damper

Details Split ring wedge bearing damper Split ring wedge bearing damper

2009-03-17

2011-12-06

Landau, Matthew (Department: 2813)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between shaft or shaft sleeve and...

C416S174000, C384S517000, C384S538000, C384S563000

Reexamination Certificate

active

08070435

ABSTRACT:
A split ring wedge bearing friction damper for an aero engine that allows the engine to operate without an oil tank, a pump, and a lubricant cooler, the friction damper having a damper ring and a wedge ring that both have wedge surfaces in contact so that an axial load can be applied to the bearing outer race to provide damping to the bearing, and so that the damper ring can also have a radial displacement to produce a radial load on the damper ring against the stator bearing support surface in which the axial load provides the friction damping and the radial load eliminates lost motion for maximum damping.

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patent: 2010/0220948 (2010-09-01), Singh et al.

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