Patent · US Expired

Piston with a central cooling chamber

US6202619A · kind A · utility

10Cited by

8References

6Claims

0Family size

Assignee

Mahle GmbH · DE

Inventors

Klaus Keller · Lorch, DE
Peter Kemnitz · Leutenbach, DE
Carmen Klusch · Ludwigsburg, DE

Key dates

Filing date	Apr 21, 2000
Grant date	Mar 20, 2001
Priority date	—
Expiry date	Apr 21, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05C2201/0448
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a piston with a central cooling chamber. The cooling chamber is located beneath the piston head and is impinged upon by oil. At least the lower wall of the cooling chamber is formed by a plate. The purpose of the invention is to provide a means of fixing the plate to the piston as easily as possible. To this end, the piston has at least one second pin or clamping sleeve situated above the piston pin. The second piston pin or clamping sleeve has a smaller diameter, extends approximately in the direction of the piston pin axis, and is connected to the piston. The plate which forms the lower wall of the cooling chamber is supported against the second piston pin or clamping sleeve.

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