Piston for an internal combustion engine
US5487364A · kind A · utility
15Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Mar 23, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2201/021
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston for an internal combustion engine includes a skirt portion configured so that a value S/(D * L) is in the range of 0.4-0.55, where L is a length of the skirt portion, D is a diameter of a cylinder bore, and S is an area of an image of the skirt portion when the skirt portion is projected onto a plane perpendicular to a direction connecting a pair of boss portions. This condition decreases the friction between the piston and the cylinder bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.