Internal combustion engine piston pin lubrication
US6250275A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Aug 16, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/086
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine comprises a housing including a combustion cylinder, a piston including a piston skirt reciprocally disposed within the combustion cylinder and having a piston pin, the piston skirt defining a bottom surface and having a lubrication passage therein, the lubrication passage having an inlet in the bottom surface of the piston skirt and an outlet adjacent the piston pin, a connecting rod including an eye pivotally disposed about the piston pin, the eye having a lubrication bore oriented to provide at least intermittent fluid communication between the piston pin and the outlet of the lubrication passage, and a lubrication applicator adapted to apply lubricant to the inlet of the lubrication passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.