Intermeshing gear pump with sealing means comprising two concent

Details Intermeshing gear pump with sealing means comprising two concent Intermeshing gear pump with sealing means comprising two concent

1979-03-19

1981-05-19

Vrablik, John J.

Rotary expansible chamber devices

With mechanical sealing

Axially movable end wall or end wall portion

418206, 277 27, 277 65, 277 70, 277 74, 277 93R, F04C 218, F04C 1500, F16J 1540, F16J 1534

Patent

active

042682320

ABSTRACT:
A gear pump having a housing and a pump space or chamber within which there are arranged two intermeshing, fluid-conveying gears, each gear being arranged upon an associated shaft. Each shaft is provided at least at the one side of the related gear with a shaft bearing and between such shaft bearing and the gear a sliding ring packing or seal which bounds the pump space or chamber. The sliding ring packing comprises two concentric sliding rings arranged at least approximately in a common radial plane, there being formed between such sliding rings an intermediate space which can be impinged with a barrier or blocking fluid.

REFERENCES:
patent: 1478417 (1923-12-01), Wottring et al.
patent: 2679412 (1954-05-01), Whitfield
patent: 2996015 (1961-08-01), Prasse
patent: 3112867 (1963-12-01), Roberts
patent: 3591188 (1971-07-01), Eisner
patent: 4101139 (1978-07-01), Nordin

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