Slip ring expansion joint

Details Slip ring expansion joint Slip ring expansion joint

1985-05-30

1987-10-27

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

415136, 277174, F04D 2912

Patent

active

047026715

ABSTRACT:
An expansion joint for sealing the periphery of a component passing through a bore in a member comprises a component sealing element and a bore sealing element, each having a respectively alignable hole therethrough for defining an opening for receiving the component through the expansion joint. The radial outer surface of the bore sealing element sealingly engages the bore and the radial inner surface of the component sealing member that defines the hole therethrough is radially outwardly relieved over a first portion so that a second portion of the inner surface sealingly contacts the periphery of the component along a line which is everywhere tangent to the component, thereby accommodating skew between the central axis of the component and the central axis of the bore. Lateral surfaces of the component and bore sealing elements are mutually sealingly engaged during assembly.

REFERENCES:
patent: 1625541 (1927-04-01), Hodgkinson
patent: 2112738 (1938-03-01), Doran
patent: 2649315 (1953-08-01), Ipsen
patent: 2800299 (1957-07-01), Sheppard et al.
patent: 2815645 (1957-12-01), Downs
patent: 2863632 (1958-12-01), Miller
patent: 2880045 (1959-03-01), Wankel
patent: 3277797 (1966-10-01), Tyree, Jr. et al.
patent: 3532446 (1970-10-01), Herreshoff
patent: 3727927 (1973-04-01), Packard
patent: 4455028 (1984-06-01), Johansson
patent: 4477090 (1984-10-01), Johansson et al.

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