Crankcase structure
US4690112A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Feb 20, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49796
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.