Split ring seal of a centrifugal pump

Details Split ring seal of a centrifugal pump Split ring seal of a centrifugal pump

1988-03-09

1989-09-19

Garrett, Robert E.

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

4152171, F04D 2908, F04D 2902

Patent

active

048676381

ABSTRACT:
A split ring seal of a centrifugal pump comprises two rings that consist of a sintered material and that are respectively connected in a frictional or positive manner to a front cover disk of the impeller and to the pump housing which are made of a cast polyamide as produced by the activated anionic polymerization of monomeric laurinlactam.

REFERENCES:
patent: 3381620 (1966-05-01), Cushing et al.
patent: 3779667 (1973-12-01), Johnson
patent: 3826509 (1974-07-01), Frank et al.
patent: 3958894 (1976-05-01), Rowley et al.
patent: 4023918 (1977-05-01), Stahl
patent: 4207024 (1980-06-01), Bill et al.
patent: 4269903 (1981-05-01), Clingman et al.
"Werkstofftechnik", vol. 17, Oct. 1986, pp. 378-384.
"CAV-8-86", Aug. 1987, pp. 87-90.

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