Patent · US Expired

Cylinder for a two stroke engine

US7299773B2 · kind B2 · utility

0Cited by

4References

17Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Florian Hoche · Waiblingen, DE
Niels Kunert · Sindelfingen, DE
Horst Denner · San Jose, US

Key dates

Filing date	Apr 26, 2006
Grant date	Nov 27, 2007
Priority date	—
Expiry date	Apr 26, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F1/22
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A cylinder for a two-stroke engine has a cylinder wall defining a cylinder interior. A cylinder head closes of a combustion chamber in the cylinder interior. An exhaust is connected to the cylinder interior. At least one transfer passage having a transfer port opens into the cylinder interior. The at least one transfer passage is disposed in the cylinder wall for connecting a crank case of the two-stroke engine to the combustion chamber. The at least one transfer passage has at the level of the transfer port at least one flow deflecting rib having a radial spacing from the transfer port in a radial outward direction relative to a longitudinal cylinder axis.

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