Connecting rod with ellipitical opening and method for...

Details Connecting rod with ellipitical opening and method for... Connecting rod with ellipitical opening and method for...

2005-04-05

2005-04-05

Bucci, David A. (Department: 3682)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S888092, C074S57900F, C074S57900F

Reexamination Certificate

active

06874229

ABSTRACT:
A connecting rod with an elliptical opening couples with a crankshaft without the use of a separate bearing element. The elliptical opening deforms under axial tension during operation to provide proper clearance between an inner surface of the opening and an outer surface of the crankshaft. A method for producing a connecting rod with an elliptical opening includes creating an initial form, compressing the crankshaft end of the form with a clamping means, honing a circular opening, releasing the clamping means, and forming radii at each edge of the resulting opening.

REFERENCES:
patent: 3768344 (1973-10-01), Feldcamp
patent: 5135209 (1992-08-01), Penny
patent: 6282784 (2001-09-01), Genouille
patent: 6502480 (2003-01-01), Walker et al.
patent: 6560869 (2003-05-01), Schlegel et al.
patent: 03125012 (1991-05-01), None

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