Patent ID: 7331314
Filing Date: 2008-02-19
Classification: F02B,F02D

Abstract:
1. A two-stroke engine comprising: a cylinder having a combustion chamber; a reciprocating piston arranged in the cylinder and delimiting the combustion chamber; a connecting rod connected to the piston; a crankshaft rotatably supported in a crankcase, wherein the piston drives with the connecting rod the crank shaft; at least one transfer channel connecting in predetermined positions of the piston the crankcase to the combustion chamber; a mixture channel supplying a fuel/air mixture to the combustion chamber; an air channel supplying substantially fuel-free air to the at least one transfer channel; a first throttle member arranged on an end face of a first component in which the air channel is formed, wherein the first throttle member throttles the air flowthrough the air channel in at least one operating state of the two-stroke engine; wherein the first throttle member is arranged on the end face of said first component such that the first throttle member is located at an inlet of the air channel, or at an outlet of the air channel, or between said first component and a second component of the air channel; wherein a flow cross-section of the air channel is matched to the two-stroke engine by selecting an appropriate configuration of the first throttle member.