Pump with seal cooling means

Details Pump with seal cooling means Pump with seal cooling means

1990-04-25

1992-02-18

Look, Edward K.

Rotary kinetic fluid motors or pumps

Including additional means causing or controlling fluid flow...

Means subjected to or is working fluid

415175, F04D 2958

Patent

active

050888919

ABSTRACT:
A pump for high temperature liquid includes a duct interconnecting the suction inlet space, and the annular clearance space between the shaft and the pressure housing at a point immediately adjacent to the seal around the shaft. During hot stand-by uniform thermosyphon circulation of liquid occurs from the suction inlet space through the annular clearance space and back to the suction inlet via the duct, which helps prevent thermal stresses being set up in the shaft.

REFERENCES:
patent: Re30333 (1980-07-01), Gordon, Jr. et al.
patent: 2853020 (1958-09-01), Hollinger et al.
patent: 3574473 (1971-04-01), Gaffal
patent: 3600101 (1971-08-01), Oglesby et al.
patent: 4690612 (1987-09-01), Jenkins

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