Viscous damper

Details Viscous damper Viscous damper

1980-12-11

1982-07-06

Footland, Lenard A.

Cutlery

308184A, 3081871, F16C 2704

Patent

active

043379834

ABSTRACT:
The characteristics of a viscous damper for high speed bearings of a gas turbine engine are changed by providing recirculation grooves at the outer edge of the inner diameter of the damper annular wall. Reduced shaft excursions are evidenced without affecting the size, oil flow and stiffness characteristic of the damper.

REFERENCES:
patent: Re30210 (1980-02-01), Buono et al.
patent: 3756672 (1973-09-01), Hibner et al.
patent: 3915521 (1975-10-01), Young
patent: 4214796 (1980-07-01), Monzel et al.

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