I couldn't help but be impressed with Grail Engine Technologies' design. It is certainly ambitious, but it's based on existing technology, so it seems more feasible than some experimental engines. They seem to have found a way to get the power of a two-stroke engine without the pollution, and with better fuel economy than most current engines. It's interesting that the company seems to have "green" motivations, rather than just being profit driven. Maybe we'll see a Grail Engine car sometime soon -- it doesn't sound too far-fetched to me.
- Grail Engine Technologies. "Grail Engine." (Feb. 14, 2012) http://www.grailengine.com/index.php
- Green Car Congress. "Grail Engine Adopts Enerpulse Pulse Plugs for Forced Semi-Homogeneous Charged Compression Ignition in Concept Two-Stroke Engine." Sept. 8, 2009. (Feb. 14, 2012) http://www.greencarcongress.com/2009/09/grail-20090908.html
- Riley, Matthew. CEO of Grail Engine Technologies. Personal interview. Conducted on Feb. 13, 2012.
- Wojdyla, Ben. "Grail Engine." Popular Mechanics. (Feb. 15, 2012) http://www.popularmechanics.com/cars/news/fuel-economy/6-prototype-engines-to-get-your-brain-firing-grail-engine#slide-2