Efficiencies greater than 55% are experimentally demonstrated using oxygen-enriched oxidizer in a six stroke engine
2022-01-0515
03/29/2022
- Content
- Criteria emissions (CO, Pb, NOx, UHC, PM, and SOx) from internal combustion engines have been greatly reduced since the 1970s; however, the greenhouse gas CO2 emissions have remained substantial. CO2 emissions are demonstrated to be significantly reduced through improved thermal efficiency. Improved thermal efficiency has been achieved experimentally through using an oxygen-enriched oxidizer, a six stroke engine cycle, enhanced radical formation, heat recovery and recycle, lean combustion, and high levels of exhaust gas recirculation. Thermal efficiencies greater than 55% are demonstrated. This technology is able to reduce the greenhouse gas emissions from a vehicle by greater than 24% mass of carbon dioxide per distance traveled. According to Statistica.com, the average new car sold in the EU in 2019 emitted 122 grams of CO2 per kilometer. These emissions could be reduced to less than 93 grams of CO2 per kilometer using this technology. Savings in fuel consumed are considerable and would drive the adoption of this technology.
- Citation
- Jung, P., "Efficiencies greater than 55% are experimentally demonstrated using oxygen-enriched oxidizer in a six stroke engine," SAE Technical Paper 2022-01-0515, 2022, .