Seal arrangement

Details Seal arrangement Seal arrangement

2007-07-03

2007-07-03

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

C415S168200, C415S171100, C415S173500

Reexamination Certificate

active

11016995

ABSTRACT:
The present invention relates to a seal arrangement in which a substantially labyrinth type seal is utilised between a rotating component and a stationary component such as a housing. An edged fin of the seal arrangement incorporates a slot nozzle or a slot nozzle is associated with a fin in order that fluid flow through those slot nozzles either impinges upon opposed surfaces or at least narrows the available leakage gap width for greater sealing efficiency. Typically, several seal arrangements in accordance with the present invention and possibly in association with simple barrier fins are combined in an assembly to provide an appropriate acceptable combined operational sealing efficiency in a turbine engine.

REFERENCES:
patent: 3645544 (1972-02-01), Unsworth
patent: 4311431 (1982-01-01), Barbeau
patent: 4863348 (1989-09-01), Weinhold
patent: 5403158 (1995-04-01), Auxier
patent: 6276692 (2001-08-01), Beeck
patent: 6742783 (2004-06-01), Lawer et al.
patent: 855040 (1960-10-01), None
patent: 1207544 (1970-10-01), None
patent: 58152975 (1982-03-01), None
patent: 63205404 (1987-02-01), None

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