Abstract:
A method of providing extra air to the exhaust stream of an internal combustion engine. A small flow of air is diverted from the output of an air-charging device, such as a turbocharger, to an entry point upstream of an emission control device. The air is supplied in a controllable fashion so as to improve the efficiency of the emission control device.
Patent Number:
7,162,861
Date Of Issue:
01/15/2007
Inventors:
Magdi K. Khair
Full Text: