Internal-combustion engines – Transmission mechanism from piston – Crankshaft and connecting rod
Patent
1996-11-07
1999-07-06
Solis, Erick R.
Internal-combustion engines
Transmission mechanism from piston
Crankshaft and connecting rod
2988809, F02B 7532
Patent
active
059185759
ABSTRACT:
A method of manufacturing a connecting rod for a piston engine in which the inner surface of the small hole of the connecting rod is milled to produce a multifaceted surface which includes two deep spot faces along each edge of the small hole and two tapered faces. This milling step yields thin edge regions along each edge of the small hole to serve as a process reference hole with process reference planes. The final step, according to the method of this invention, is to remove the thin edge regions with a rotating cutting tool, thus exposing the tapered faces to serve as chamfered edges without any significant production of burs or distortion of the connecting rod.
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patent: 4191238 (1980-03-01), Pichl
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patent: 5544413 (1996-08-01), Stevens et al.
Solis Erick R.
Toyota Jidosha & Kabushiki Kaisha
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