Federal-Mogul Corporation

Tenneco Gmbh

Paul Matthew Ovares

James Robert Toth

Robert Karl Sturk

A wear resistant coating is applied to the thrust surfaces and bore surfaces of a connecting rod. The wear resistant coating includes a polymer matrix, such as polyamide imide (PAI), solid lubricant, and hard particles including FeO. The wear resistant coating is typically applied by spraying or rolling. The wear resistant coating adheres well to metal and provides lubrication. Thus, the wear resistant coating can reliably reduce wear, scuff, and seizure along the surfaces of the connecting rod as the piston reciprocates and crank shaft rotates during operation of the internal combustion engine. The likelihood of engine contamination caused by metal shavings from wear of the connecting rod is reduced, and the life of the connecting rod and engine is increased.

Wear resistant coating applied to connecting rod surfaces

A main bearing () for supporting a rotating crankshaft () includes an upper shell () and a lower shell (). An upper inner surface () of the upper shell () has an oil supply groove () extending circumferentially therealong, an oil stem groove () extending obliquely from the oil supply groove (), and a pair of oil distribution grooves () extending from the oil stem groove () along and parallel to the oil supply groove () to present an F-shape along the upper inner surface () of the main bearing (). The oil grooves () provide for improved lubrication of the main bearing () at startup and when the engine is idle or stopped, especially in electric and hybrid vehicles. The main bearing () also has exceptional strength and load bearing capacity.

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Brownstown, MI, United States of America

Paul Matthew Ovares