Rotary shaft sealing system

Internal-combustion engines – Poppet valve operating mechanism – Lubrication

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Details

277351, 277421, F16J 1500, F01M 910

Patent

active

059965428

ABSTRACT:
The invention relates to a flinger device for preventing the ingress of foreign matter such as dust or grit to the vicinity of a contact surface between a rotary shaft lubricant seal and the shaft. The device is adapted to locate on an end of the shaft and has a radially extending flange portion which fits closely adjacent to a radially extending outer end surface for retaining the seal in contact with the shaft. The device also has an axially extending wall part whose outer circumferential surface locates closely adjacent to an axially extending inner surface of the seal retainer. The surfaces of the flange portion and wall part of the device co-operate to prevent or at least restrict the ingress of foreign matter to the vicinity of the seal/shaft contact surface.

REFERENCES:
patent: 2621087 (1952-12-01), Kluge
patent: 3331609 (1967-07-01), Moran
patent: 3586342 (1971-06-01), Staab
patent: 5025917 (1991-06-01), Smith et al.
patent: 5201529 (1993-04-01), Heinzen
patent: 5228700 (1993-07-01), Biesold et al.
patent: 5244215 (1993-09-01), Cather, Jr. et al.
patent: 5421592 (1995-06-01), Petrak
patent: 5462288 (1995-10-01), Hering et al.
patent: 5588656 (1996-12-01), Matsushima
patent: 5648614 (1997-07-01), Martsfeld
patent: 5713579 (1998-02-01), Petrak et al.
Design News, "Rotating Seal Deflects Dirt and Debris", Dec. 1996, p. 58, John Lewis.

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