Our technological advances have produced two new ground breaking concepts known as Forced Semi-Homogeneous Charged Compression Ignition (FS-HCCI) and "The Grail Cycle," which is a combination of one type of ignition or homogeneous charged compression ignition while simultaneously operating in the Miller Cycle. No other piston engine in the market place can produce this distinctive trait at this time. The Grail Engine has the potential to be the first two stroke engine that does not exhibit cross contamination of fuel and oil. This results in lower emissions yet produces more power and torque using less fuel than larger engines.
Compression takes place within the reed valve air box, pre-compression chamber, vent-to-piston ports, piston-intake-ports & crankcase. As the piston travels upward creating a vacuum beneath the piston, fresh air enters via the intake air box through the one-way reed valve, and fills the external pre-compression chamber, vent-to-piston ports and piston-intake-ports with fresh air.
Compression occurs within the cylinder as the piston travels upward. At Top Dead Center (TDC), direct ignition then single or multiple ignitions occur. This forces the piston down into the cylinder compressing air in the engine crankcase, external pre-compression chamber, vent-to-piston ports and piston intake-ports. Just prior to Bottom Dead Center (BDC), the exhaust valve opens via a standard cam/push rod mechanism or electro-mechanical valve control. Exhaust gases exit via the exhaust valve opening at the top of the cylinder. Compressed fresh air enters the cylinder via piston valve, which forces out the final exhaust. As the piston travels past BDC the exhaust valve and piston valve close and cycle repeats.