Method of reduction emissions in the exhaust gases of an internal combustion engine
First Claim
1. A method of reducing emissions in the exhaust gases of an internal combustion engine having at least one cylinder to which an air/fuel mixture is supplied when an engine crankshaft rotates, at least one intake valve, at least one exhaust valve, and a piston reciprocating between a top dead-center position and a bottom dead-center position in the cylinder, the method comprising the steps of:
- supplying an air/fuel mixture with a lambda value greater than 1 to the cylinder, maintaining an essentially constant predetermined speed of the crankshaft by use of an electric motor/generator connected to the crankshaft, and controlling the exhaust valve so that it opens before the piston has passed the bottom dead-center position.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of reducing emissions in the exhaust gases of an internal combustion engine that has at least one cylinder to which an air/fuel mixture is supplied when a crankshaft of the internal combustion engine is rotated, at least one intake valve, at least one exhaust valve, and a piston reciprocating between a top dead-center position and a bottom dead-center position in the cylinder. The method comprises the following steps: an air/fuel mixture with a lambda value greater than 1 is supplied to the cylinder, an electric motor/generator connected to the crankshaft maintains an essentially constant predetermined speed of the crankshaft, and the exhaust valve is controlled so that it opens before the piston has passed the bottom dead-center position is disclosed.
-
Citations
15 Claims
-
1. A method of reducing emissions in the exhaust gases of an internal combustion engine having at least one cylinder to which an air/fuel mixture is supplied when an engine crankshaft rotates, at least one intake valve, at least one exhaust valve, and a piston reciprocating between a top dead-center position and a bottom dead-center position in the cylinder, the method comprising the steps of:
-
supplying an air/fuel mixture with a lambda value greater than 1 to the cylinder, maintaining an essentially constant predetermined speed of the crankshaft by use of an electric motor/generator connected to the crankshaft, and controlling the exhaust valve so that it opens before the piston has passed the bottom dead-center position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification