Patent · US Expired

Piston with pin boss cooling

US5630391A · kind A · utility

3Cited by

9References

2Claims

0Family size

Assignee

Mahle GmbH · DE

Inventors

Werner Anderson · Oberboihingen, DE
Thomas Hoch · Boxborough, US
Dietmar Wetzel · Stuttgart, DE

Key dates

Filing date	Dec 8, 1994
Grant date	May 20, 1997
Priority date	—
Expiry date	Dec 8, 2014

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F3/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piston for an internal combustion engine, particularly for motor vehicles. An oil-collecting chamber is disposed between the pin bosses above the pin boss bore. Oil collects within the chamber and is directed down onto the pin bosses, during reciprocating motion of the piston. The width of the chamber is approximately the same as the diameter of the pin boss bore.

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