Structure for connecting piston to crankshaft
US7284525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2004 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Aug 10, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2206/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There is provided a structure for connecting a piston to a crankshaft in an internal combustion engine, including a piston pin fitted into the piston, a crankpin integral with the crankshaft and a connecting rod having a piston pin bearing portion slidably engaged with an outer cylindrical portion of the piston pin and a crankpin bearing portion slidably engaged with an outer cylindrical portion of the crankpin. At least one of the piston pin bearing portion of the connecting rod and the outer cylindrical portion of the piston pin and at least one of the crankpin bearing portion of the connecting rod and the outer cylindrical portion of the crankpin have hard carbon coatings formed thereon with a hydrogen content of 20 atomic % or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.