Patent ID: 8506287
Filing Date: 2013-08-13
Classification: F23C,F23D,F23L

Abstract:
1. An air-fuel combustion system comprising an air/fuel transfer duct adapted to discharge an air-and-fuel mixture into a combustion chamber, an air-supply duct containing a first airflow channel in fluid communication with the air/fuel transfer duct, a separate second airflow channel in fluid communication with the air/fuel transfer duct, and a swirler located in the second airflow channel and configured to swirl combustion air flowing through the second airflow channel, and a fuel-supply duct coupled to discharge a first fuel stream generated from fuel flowing in the fuel-supply duct directly into combustion air flowing into the air/fuel transfer duct, wherein the air/fuel transfer duct is configured to provide means for conducting fuel, straight-line air discharged from the first airflow channel and the swirling air discharged from the second airflow channel to a combustion chamber for combustion therein, wherein substantially all mixing of the straight-line air, swirling air and fuel occurs after entering the air/fuel transfer duct.