Patent · US Expired

Piston for internal combustion engine

US7287459B2 · kind B2 · utility

9Cited by
7References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 28, 2005
Grant dateOct 30, 2007
Priority date
Expiry dateNov 28, 2025

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF05C2253/20
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A piston for an internal combustion engine, the piston having a skirt part, comprises: a resinous coating layer formed on a surface of the skirt part; and a plurality of concaves regularly arranged in the resinous coating layer. The concaves are non-coated regions in which said resinous coating layer is not formed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.