F - Mech Eng,Light,Heat,Weapons – 03 – B
Patent
F - Mech Eng,Light,Heat,Weapons
03
B
F03B 3/06 (2006.01) F03B 3/12 (2006.01) F03B 11/00 (2006.01)
Patent
CA 2252380
A sealing system for the type of hydraulic machine which comprises a runner or rotor with a hub body (1) and with blades or vanes (4) which are rotatably mounted in oil lubricated bearings (7, 8) in the hub body, comprising sealing means provided between said bearings and surrounding water is provided such that said sealing means comprise a circumferential first sealing member (60) and a second circumferential sealing member (61) inside of the first sealing member, that a circumferential space (65) exists between said first and second sealing members, and that a circumferential space is connected, via a channel (64), with water which has a pressure that is greater than the oil pressure in said bearings.
Cette invention concerne un système d'étanchéité destiné aux machines hydrauliques faisant appel à une roue mobile ou à un rotor qui possède un corps de moyeu (1) ainsi que des ailettes ou des pales (4), ces dernières étant montées rotatives dans des paliers (7, 8) lubrifiés par huile et situés dans ledit corps de moyeu. Ce système comprend un dispositif d'étanchéité disposé entre les paliers et de l'eau ambiante. Ce dispositif d'étanchéité comprend un premier élément d'étanchéité circonférentiel (60), ainsi qu'un second élément d'étanchéité circonférentiel (61) qui est monté à l'intérieur du premier de manière à définir un espace circonférentiel (65) entre lesdits premier et second éléments. L'espace circonférentiel est relié par un canal (64) avec de l'eau qui se trouve à une pression supérieure à celle de l'huile dans les paliers.
Kvaerner Turbin Aktiebolag
Ridout & Maybee Llp
LandOfFree
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