Active Thermo-Atmosphere Combustion (ATAC) - A New Combustion Process for Internal Combustion Engines 790501
A new lean combustion process for internal combustion engines has been developed. This newly devised combustion system, designated as “Active Thermo-Atmosphere Combustion” (ATAC), differs from conventional gasoline and diesel engine combustion processes.
ATAC can be applied most easily to two-stroke cycle gasoline engines. Stable combustion can be achieved with lean mixtures at part-throttle operation. With ATAC the fuel consumption and exhaust emissions of two-stroke cycle spark-ignition engines are remarkably improved, and noise and vibration are reduced.
Citation: Onishi, S., Jo, S., Shoda, K., Jo, P. et al., "Active Thermo-Atmosphere Combustion (ATAC) - A New Combustion Process for Internal Combustion Engines," SAE Technical Paper 790501, 1979, https://doi.org/10.4271/790501. Download Citation
Shigeru Onishi, Souk Hong Jo, Katsuji Shoda, Pan Do Jo, Satoshi Kato
Nippon Clean Engine Research Institute Co., Ltd.
1979 Automotive Engineering Congress and Exposition