Machine element or mechanism – Elements – Pitmans and connecting rods
Patent
1998-11-03
2000-05-02
Herrmann, Allan D.
Machine element or mechanism
Elements
Pitmans and connecting rods
74579R, 1231973, 384255, 384294, F02B 7532
Patent
active
060558849
ABSTRACT:
A light-weight bearing cap for attaching a connecting rod to a journal of a crankshaft pin has two longitudinally extending shoulders separated by an arcuate span conforming to the shape of the journal The shoulders are adapted to receive fasteners which connect mating surfaces of the connecting rod to those of the bearing cap. Mass is conserved by ensuring that the inner and outer arcuate surfaces are shaped as arcs of non-concentric circles such that the maximum thickness of the span occurs at the bisecting points of the respective arcs and the minimum thickness of the span occurs in the region between the shoulders and the maximum thickness. The thickness where the machined surface on the shoulder is located is greater than in the region between the shoulder and the region of maximum thickness.
REFERENCES:
patent: 1831325 (1931-11-01), Short
patent: 2053962 (1936-09-01), Lonas et al.
patent: 4422348 (1983-12-01), Campbell
patent: 5109605 (1992-05-01), Hoag et al.
patent: 5507093 (1996-04-01), Wittenstein et al.
patent: 5536089 (1996-07-01), Weber et al.
patent: 5594187 (1997-01-01), Lynn
Photographs of BMW connecting rods juxtaposed with written description from Jul. 1992 issue of Automotive Industries magazine.
Photographs of Neon connecting rods juxtaposed with written description from a magazine, available for public sale since Fall 1994.
Lantz Kenneth A.
Toffolo Jason L.
Herrmann Allan D.
Honda Giken Kogyo Kabushiki Kaisha
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