LiquidPiston cover feature


First wholly new combustion engine / cycle in 85+ years
$860,187 Raised
Ended March 16th
463 Investors
High Growth
According to the SEC, this company has grown their revenue 244% in the past fiscal year.

Engines are dirty, and physics tells us we can do better! We've developed an optimized thermodynamic cycle and built a fundamentally new combustion engine that's cleaner, cheaper, quieter, and smaller. Compared to piston engines, our "X" rotary engine can be ~5-10x smaller and lighter than a Diesel, and up to 2x more efficient than a gasoline engine. An electric vehicle using LiquidPiston combined with a small battery pack could have a lower CO2 footprint compared to plug-in electric vehicles.

Why you may want to invest
  1. Raised $1.29M from 727 investors on Wefunder in 2017. 

  2. Since then, DARPA awarded a Phase 2 $2.5M development contract in October 2017, a follow-on to our 2 DoD contracts, totaling $5.5M in non-dilutive funding. 

  3. New engine architecture could improve fuel efficiency by up to 2x over a gasoline engine while reducing size and weight by up to 10x over a diesel engine.

  4. 45 patents issued or pending in the U.S. and internationally.

  5. Our 70cc "X mini" engine is a 3-5hp gasoline engine the size of a honeydew melon. Measured 50% increased efficiency over comparable per-cylinder displacement gasoline engine. The engine is being inserted into a 2kwe hybrid electric generator for Army applications.

  6. Our 750cc "X-4" engine is a 40hp rotary Diesel X engine "Alpha" prototype, which ultimately may fit in an 11" box while weighing just 40 pounds. We are proving it's efficiency and power.

  7. Completed $1M "seedling" program with DARPA in 2015.

  8. $460 billion total addressable market; starting with military industry and handheld engine.

Learn more about this company


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