Mechanical shaft seal

Details Mechanical shaft seal Mechanical shaft seal

1989-05-04

1990-08-14

Look, Edward K.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Means to seal radial flow pump runner inlet from outlet

4151736, 4151742, 277 27, 277152, F04D 2908

Patent

active

049483366

ABSTRACT:
A seal for a pump impeller (22) comprising an annular ring (50) freely received within a cylindrical opening (56) in the pump housing (12) and disposed around a cylindrical portion of the impeller (22).

REFERENCES:
patent: 971850 (1910-10-01), Krogh
patent: 2270054 (1942-01-01), Hogan
patent: 3228342 (1966-01-01), Page
patent: 3238534 (1966-03-01), Hartland
patent: 3510230 (1970-05-01), Raub
patent: 3554661 (1971-01-01), Oglesby
patent: 3741679 (1973-06-01), Johnson
patent: 4260165 (1981-04-01), Hartelius
patent: 4269564 (1981-05-01), Naffziger
patent: 4505637 (1985-03-01), Raczynski
patent: 4538959 (1985-09-01), Cantor et al.
Mallaire et al, "Evaluation of Wear Ring Seals for High-Speed, High-Pressure Turbopumps", Journal of Lubrication Technology, Jul. 1968.

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