Rotatable shaft seals

Details Rotatable shaft seals Rotatable shaft seals

1984-01-20

1985-07-02

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277193, F16J 900

Patent

active

045263876

ABSTRACT:
A seal assembly for a rotatable shaft extending through a bore in a housing, particularly for high-speed applications such as turbo-charger rotors. An annular groove is provided around the shaft, and a first resilient split-ring sealing member is located in the groove. At least one second resilient split-ring sealing member is fitted over said first member, so as resiliently to bear on the wall of the housing defining the bore. Said first member is an axial close running fit within the groove, but of a lesser radial dimension than the depth of groove, whereas the axial width of said second member is smaller than that of said first member.

REFERENCES:
patent: 2466428 (1949-04-01), Hufferd et al.
patent: 3658350 (1972-04-01), Ondraka
patent: 3877707 (1975-04-01), Syvakari
patent: 4161317 (1979-07-01), Sakamaki

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