Nozzle chamber friction damper

Details Nozzle chamber friction damper Nozzle chamber friction damper

1975-03-21

1976-06-29

Reger, Duane A.

Brakes

With condition indicator

Electrical

64 15R, F16F 708

Patent

active

039660230

ABSTRACT:
A damping device for limiting motion of nozzle chamber members relative to each other and relative to a casing of a turbine apparatus both in the axial direction and in a transverse plane. The device comprises a friction generating member mounted on a nozzle chamber and disposed in abutting contact with an adjacent nozzle chamber or with the turbine casing. Relative motion between the contacted surfaces of the friction generating member and the surface against which it abuts generates a friction force which limits motion therebetween. The friction generating member is biased by a suitable arrangement disposed in a bore in one of the chambers to maintain contact with the abutting surface. A bias force acting on the friction generating member in a substantially axial direction relative to the bore assists in further maintaining the axial alignment of the members. Friction forces generated within the bias arrangement also combine to impede or limit the displacement of the nozzle chambers relative to each other or relative to the interior of the turbine casing.

REFERENCES:
patent: 1893486 (1933-01-01), Black
patent: 3589475 (1971-06-01), Alford
patent: 3646777 (1972-03-01), Anderson et al.

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