Piston with a skirt having oil flow slots and method of construction thereof
US8474366B2 · kind B2 · utility
0Cited by
25References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2009 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Apr 20, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49249
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston has a pair of diametrically opposite skirt portions with convex outer surfaces. Each skirt portion has opposite side edges extending substantially parallel to a central axis of the piston to a free end. The skirt portions each have a recessed slot extending radially into the convex outer surface to a recessed surface. The recessed surface extends fully across the convex outer surface to the side edges and separates an upper band section of the convex outer surface from a lower band section of the convex outer surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.