Generator seal oil supply system

Details Generator seal oil supply system Generator seal oil supply system

1976-07-26

1977-11-15

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 15, F16J 1540

Patent

active

040583201

ABSTRACT:
A system supplying oil to the seal plates of a generator. Seal oil is provided by a primary pump and a secondary pump which acts as a backup for the primary pump. Under normal operating conditions a portion of the seal oil supplied by either pump is diverted through a bypass line so that only a predetermined amount of oil actually flows to the seal plates. When the flow rate through the bypass line falls below a specific amount, the secondary pump is activated. If, at any time, the oil pressure supplied to the seal plates falls below a predetermined amount, then a hydraulic accumulator maintains the necessary pressure and flow rate for a relatively short period of time required to bring the backup pump to its proper pressure and flow rate.

REFERENCES:
patent: 2159057 (1939-05-01), Sterrett
patent: 2307755 (1943-01-01), Beckwith
patent: 2899245 (1959-08-01), Michel
patent: 2903280 (1959-09-01), Cuny
patent: 3770179 (1973-11-01), McHugh
patent: 3792721 (1974-02-01), Zahid
patent: 3917289 (1975-11-01), Ivanov et al.

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