Keyway oil seal assembly

Details Keyway oil seal assembly Keyway oil seal assembly

1977-08-23

1978-06-20

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277136, 138 89, 403356, 123196R, 123 4147, F01P 510, F16J 1540

Patent

active

040958035

ABSTRACT:
The disclosure illustrates an oil seal assembly for a keyway which receives a pin for an interconnection between an accessory drive pulley and a shaft extending from a diesel engine accessory drive gear box. The oil seal consists of an L-shaped elastomeric seal with one leg of the L extending into the keyway and the other leg providing a shoulder which abuts the shaft adjacent the keyway end. A nut threaded onto the end of the shaft holds a washer against the L-shaped seal thus compressing it. So compressed, the seal expands against the walls of the keyway to form an effective seal against the flow of oil therethrough. Preferably, the seal is formed from material which swells exceedingly when immersed in petroleum products. As a result, any leakage causes the seal to expand and stop further oil flow.

REFERENCES:
patent: 2571352 (1951-10-01), Fast
patent: 3200984 (1965-08-01), Fueslein et al.

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