Increased efficiency
The TourEngine™ design permits reducing the two big energy losses that exist in current IC engines because it separates the location of the cold strokes from the hot strokes, thus enabling superior thermal management:
- Less energy is lost to the radiator – The Cold-Cylinder that hosts the Intake and Compression strokes remains cooler as the combustion stroke occurs only in the Hot-Cylinder. Consequently, less cooling is needed and therefore less energy is lost to the radiator.
- Less energy is lost to the exhaust – The Hot-Cylinder is designed to be larger than the Cold-Cylinder to maximize the conversion of heat/pressure energy to piston kinetic energy at the combustion stroke, as the combusted gas expands more fully.
Reduced emissions
The split-cycle design proves not only to be more efficient but also less polluting:
- Up to 50% decrease in CO2 emission
- Potential for a substantial decrease in NOx emission
- Reduction in CH and CO emission
Additional advantages
Additional advantages of the TourEngine™ include higher torque, high-grade waste energy capture, complete combustion, efficient intake and efficient compression. These advantages and others are further described in internal documents (available upon request and NDA).