Controlled temperature rotating seal

Details Controlled temperature rotating seal Controlled temperature rotating seal

1988-09-16

1989-09-26

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

4151737, 415116, F04D 2958

Patent

active

048696404

ABSTRACT:
A temperature controlled rotating seal (46) includes an annular runner (48) having knife edges (50) and a surrounding static shroud (44). Baffles (64, 66) extend radially from the adjacent rotor (10) and a static stator vane assembly (36), forming a plurality of annular mixing volumes (60, 62) disposed upstream of the seal (46). Cool air (70) is provided to the innermost mixing volume (62) thereby controlling the local gas temperatures at the rotor periphery (14).

REFERENCES:
patent: 3034298 (1962-05-01), White
patent: 4213738 (1980-07-01), Williams
patent: 4332133 (1982-06-01), Schwarz et al.
patent: 4378961 (1983-04-01), Trousdell
patent: 4708588 (1987-11-01), Schwarz et al.
patent: 4741153 (1988-05-01), Hallinger et al.

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