Piston for internal combustion engine and internal combustion engine with the same
US7997249B2 · kind B2 · utility
4Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2007 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Nov 15, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P3/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston for an internal combustion engine including: a piston head located at an uppermost section of the piston; a land located on a circumference of the piston head; a skirt located below the land; and a pair of pin bosses located on the lower section of the piston head. The piston head has a first cavity on the bottom of the piston head. Each of the pair of pin bosses has a second cavity in an outer upper section of the pin boss. The pin boss has a through hole that communicably connects the first cavity with the second cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.