Title: Fan drive hydraulic coupling

Abstract: A fan drive structure for the cooling system of an internal combustion engine. A drive disc rotates within a housing cavity having a silicone oil therein. The housing carries a fan. The improvement comprising coating the sides of the drive disc with a polyphenylene sulfide material. The material coating functions as an anti-friction and bearing surface.

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Inventors: Mitchell, Roland J. (Indianapolis, IN, US)

Application Number: 492260
Filing Date: 1974-07-26
Publication_date: 1976-06-22
Assignee: Wallace-Murray Corporation (New York, NY)
Primary Class(es): 192/58.63 192/58.4, 428/419
Other Classes:
US Patent Ref:

3194372	Jul, 1965	Weir	192/58.
3354129	Nov, 1967	Edmond, Jr. et al.	117/132.
3464845	Sep, 1969	Osborn et al.	117/49.
3634125	Jan, 1972	Tieszen	117/49.

Other Refs:
Primary Examiner: Scott, Samuel
Assistant Examiner: Chandler, Lance W.
Attorney: Greer, Jr.; Thomas J.