LiquidPiston, Inc. has conceptualized a new patent pending internal combustion engine architecture, which promises to drastically improve fuel efficiency and power density compared to existing engines. Our engine may run as efficient as fuel cells hope to be, but at a fraction of the cost - potentially cheaper than conventional engine technology, if produced in the same quantity. The LiquidPiston technology is inherently scalable from powering lawnmowers to locomotives, providing a platform suitable for any segment of the $250 billion combustion engine market.