Patent · US Active

Piston having outer thread

US11492996B2 · kind B2 · utility

0Cited by

5References

13Claims

0Family size

Assignee

KS Kolbenschmidt GmbH · DE

Inventors

Matthias Laqua · Bad Wimpfen, DE
Alexander Schäfer · Gothenburg, SE
Wolfgang Kohler · Weiterstadt, DE
Dieter Kramer · Lindlar, DE

Key dates

Filing date	Feb 27, 2020
Grant date	Nov 8, 2022
Priority date	—
Expiry date	Feb 27, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F3/22
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a piston for an internal combustion engine formed from a lower part and an upper part which are threadingly connected to one another to form a piston. In one example, an anti-rotation safeguard device is used to prevent unwanted rotation of the upper part relative to the lower part. In another example, a forged extension and a nut are used to obtain a prestress during operation of the piston. In another example, a cooling gallery including extension bores are used to increase the cooling capacity.

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