Spark ignited internal combustion engine with at least one cylinder

US6666186B2 · kind B2 · utility

Assignee

• AVL LIST GMBH · AT

Inventor

• Franz Laimbock · Gratwein-Straßengel, AT

Key dates

• Filing date: Feb 1, 2002
• Grant date: Dec 23, 2003
• Expiry date: Apr 4, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a spark ignited internal combustion engine with at least one cylinder that accommodates a reciprocating piston, with a cylinder head that receives at least one ignition device per cylinder and in which are formed one exhaust and two intake manifolds, said exhaust manifold communicating with a combustion chamber by way of one exhaust port and said intake manifolds communicating therewith by way of intake ports, said exhaust port being controlled via an exhaust valve and said intake ports via intake valves, said exhaust port on the one hand and said intake ports on the other hand being arranged to different sides of an elevated plane of the engine that passes through the axis of the cylinder and through the axis of the crankshaft, said intake manifolds being at least in sections arranged substantially in the direction of the cylinder's axis and being formed in such a manner that a reverse tumble flow is initiated in the combustion chamber, said flow being oriented from the intake ports toward the piston and from there toward the exhaust port. In order to reduce the flow losses in the combustion chamber in the easiest possible manner, there is provided that at…