Spring supported damping system

Details Spring supported damping system Spring supported damping system

1990-07-26

1991-09-03

Footland, Lenard A.

Bearings

Rotary bearing

Hydraulic or pneumatic bearing support

F16C 3904

Patent

active

050447815

ABSTRACT:
A damper system for supporting a bearing for a rotating shaft of a gas turbine engine includes a plurality of cylinders circumferentially spaced about the outer race of the bearing with a reciprocating piston in each of the cylinders having one face bearing against the outer race and the other face disposed in a fluid-filled chamber with an inlet and restricted outlet that forces the liquid in and out of the chamber in response to the vibratory motion as the outer race orbits about the cylinders exciting the piston to effectuate a pumping action.

REFERENCES:
patent: 3679272 (1972-07-01), Costa et al.
patent: 3782793 (1974-01-01), Sinner
patent: 4669893 (1987-06-01), Chalaire et al.
patent: 4872767 (1989-10-01), Knapp

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