Patent · US Expired

Trunk piston for use in an internal combustion engine

US4856417A · kind A · utility

17Cited by
1References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 21, 1985
Grant dateAug 15, 1989
Priority date
Expiry dateFeb 21, 2005

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF05C2201/021
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A piston comprises a piston crown section, a piston skirt section connected to the piston crown section and having a pair of relatively flat, inclined portions at a pair of radially opposite locations thereof and a pair of piston pin boss sections disposed through and connected to the inclined portions of the piston skirt section, respectively, with the distance between the inclined portions being decreased from the maximum at the upper portion of the piston skirt section to the minimum at the lower portion of the piston skirt section.

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