Pump

Details Pump Pump

1974-10-29

1976-08-24

Cohen, Irwin C.

Rotary expansible chamber devices

Shaft or trunnion lubrication or sealing by diverted working...

277 22, 418206, F01C 1900, F04C 2700

Patent

active

039764052

ABSTRACT:
An improved gear pump for pumping molten metals, such as molten lead or lead alloy, in which sealing means are provided to prevent loss of metal flowing axially along the pump drive shaft. A cooled annulus is provided about the pump drive shaft for solidifying molten metal therein which forms an effective seal and bearing.

REFERENCES:
patent: 2479077 (1949-08-01), McAlvay
patent: 2799522 (1957-07-01), King et al.
patent: 2990783 (1961-07-01), Oliver
patent: 3129947 (1964-04-01), Streck
patent: 3331608 (1967-07-01), Charrault et al.
patent: 3554558 (1971-01-01), Rajakovics
patent: 3823949 (1974-07-01), Derks et al.

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