Combustion Optimization

The unique geometry of the Legacy engine introduces thermodynamic processes that are unlike any other engine. This provides the opportunity to optimize the combustion processes and gain additional efficiencies beyond what is possible in a conventional engine. This is due to the manner in which the working volume changes as a function of the rotation of the engine; as illustrated below.

Additionally, the combustion chamber is divided into two separate volumes, shown in the adjacent figure. Fuel is injected into the leading volume and as the engine rotates air is forced from the trailing volume into the leading volume creating high turbulence and improved mixing. Improved mixing will result in improved combustion and lower emissions. Software exists for conventional diesel engines, and it will be modified and enhanced for the unique geometry of the Legacy engine. The model will be calibrated, based on empirical data obtained from dynamometer evaluation of the prototypes, throughout the development phases of the project. Because the software and expertise currently exist to address these issues, combustion optimization does not pose a risk to commercialization.