Lubrication for crankpin bearing of connecting rod

Details Lubrication for crankpin bearing of connecting rod Lubrication for crankpin bearing of connecting rod

1992-08-04

1993-11-30

Denion, Thomas E.

Lubrication

Systems

Crank-type machines

184 111, 92157, 1231974, 384288, 384294, F01M 104

Patent

active

052657000

ABSTRACT:
A connecting rod for connecting a reciprocating piston to a rotating crankshaft of an internal combustion engine includes an improved lubrication distribution system for conveying lubrication into its crankpin bearing. The lubrication is distributed by means of a pair of radial bores one of which extends through the cap of the crankpin bearing and the other of which extends through an arcuate-shaped crankpin bearing portion integrally formed at the end of the connecting rod. The bores are located diametrically opposite one another, and each bore includes an outlet opening into the crankpin bearing hole. The outlets are oval in cross-section and have chamfered sidewalls with an angle of between 30.degree. to 60.degree. with respect to the bore.

REFERENCES:
patent: 1147266 (1915-07-01), Rapsch
patent: 2776175 (1957-01-01), Waite
patent: 3508798 (1970-04-01), Geuss

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