Articulated, oil-cooled piston for internal combustion engines
US5546896A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1995 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Jul 18, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F3/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An articulated oil-cooled piston for internal combustion engine extending along a longitudinal axis and including a piston skirt, a piston head with bosses, annular ribs and a piston pin disposed within the bosses for connecting the piston skirt and a connecting rod to the piston head. The piston head includes a ring belt which defines an outer border of an annular cooling oil duct. The annular cooling oil duct has a downwardly-facing opening which is covered by an annular plate. The annular plate is radially divided into plate parts, which are radially inserted into slots formed near the bottom end of the ring belt. When fully installed, the plate parts are disposed within a common plane which is oriented perpendicular to the piston axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.