Seal oil supply system using differential pressure accumulator

Details Seal oil supply system using differential pressure accumulator Seal oil supply system using differential pressure accumulator

1994-06-27

1995-12-12

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

60413, 277 15, 277 17, 277 27, 277 28, F21B 3300, F1JK 1500

Patent

active

054743044

ABSTRACT:
In a seal oil system utilized to supply oil to shaft seals of a generator for preventing pressurized gas inside the generator from escaping through an interface of the generator shaft and the generator frame, wherein seal oil is supplied to said seals via a main supply line at a predetermined pressure, the improvement comprising at least one differential pressure accumulator including a barrel having an upper inlet end and a lower outlet end, and a piston slidably mounted in said barrel and movable between said inlet end and said outlet end; a first chamber above said piston having liquid supplied thereto at a pressure equal to internal gas pressure of the generator; a second chamber below said piston charged with generator seal oil; and means for enabling said at least one accumulator to discharge generator seal oil to said main supply line upon temporary decrease in pressure in said main supply line.

REFERENCES:
patent: 3942323 (1976-03-01), Maillet
patent: 4005580 (1977-02-01), Swearingen
patent: 4058320 (1977-11-01), Kosanovich

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