Two-stroke motor with fresh-gas supply and flange for a two-stroke motor

US6634326B2 · kind B2 · utility

Assignee

• DOLMAR GmbH · DE

Inventors

• Harry Radel · Geesthacht, DE
• Rainer Massmann · Bonn, DE

Key dates

• Filing date: Dec 6, 2001
• Grant date: Oct 21, 2003
• Expiry date: Dec 6, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B2075/025
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a two-stroke motor with a fresh-gas supply (preferably with oil-in-gasoline lubrication), with a motor housing in which a crank chamber with an inlet opening and a cylinder chamber with an outlet opening are formed, with a crank drive in the crank chamber and with a piston in the cylinder chamber that are connected to one another by a connecting rod, with at least one overflow conduit, with a carburetor comprising a carburetor chamber with a fresh-air entrance opening, a fuel entrance opening and a mixture exit opening as well as comprising a throttle flap that can move in a regulatable manner, with an inlet conduit in order to connect the mixed outlet opening of the carburetor chamber to the inlet opening of the crank chamber, and with a fresh-gas conduit that empties through an opening into the overflow conduit in order to supply fresh gas to the overflow conduit. The invention also entails a flange for a two-stroke motor with fresh-gas supply, especially for a two-stroke motor with oil-in-gasoline lubrication.