Crankcase structure

Details Crankcase structure Crankcase structure

1986-02-20

1987-09-01

Feinberg, Craig R.

Internal-combustion engines

Frame construction

Horizontal cylinder

291564R, 29411, 29416, B21D 5310

Patent

active

046901124

ABSTRACT:
An improved crankcase structure and manufacturing method for engine blocks and the like wherein the crankcase is initially cast or otherwise formed with bearing caps integral therewith. The caps are preferably secured by severable connecting portions unidirectionally longitudinally adjacent their associated bearing receiving portions in the transverse webs of the cylinder block. The complete crankcase is then machined and the bearing caps are separated for subsequent assembly to the crankcase in conventional fashion. The invention reduces the amount of tooling and machining time and equipment required for manufacturing crankcases for engine blocks and the like.

REFERENCES:
patent: 3818577 (1974-06-01), Bailey et al.
patent: 4292718 (1981-10-01), Iijima
patent: 4569109 (1986-02-01), Fetouh

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