Compact and lightweight: 5x greater power density and specific power vs. piston diesel engines
Heavy-fuel compatible (Diesel, Jet A, JP-8, kerosene) and Multi-fuel capable (gasoline, propane, hydrogen)
Optimized for hybrid-electric application
The XTS-210 is a 25 horsepower, two-stroke, supercharged, liquid-cooled 210cc X-Engine variant currently under development that reduces size and weight by nearly 80% over diesel engines with comparable power output while targeting an SFC of under 350 g/kwh at maturity.
The XTS supercharger adds up to 1 bar boost while operating on a 2-stroke cycle, producing 6 combustion events per revolution of the rotor, to deliver smooth power from a minuscule package.
The XTS-210 is being designed to meet demanding commercial and military heavy-fueled applications, including mobile electric power generation, primary or hybrid-electric propulsive power for vehicles including vertical take-off and landing aircraft (VTOL) and small unmanned aircraft systems (sUAS), as well as auxiliary power units.
Up to 60% longer flight duration
Quiet operating mode (electric-only “silent” cruise)
Running on JP-8, other jet fuels
Transition from electric cruise back to engine power with engine restart in-air
Near-zero vibration
The LPI 10kW Genset, incorporating the XTS-210 X-Engine, is capable of replacing multiple existing generator power classes with a single genset platform, greatly simplifying Army genset procurement and logistics.
Leveraging LiquidPiston’s patented High Efficiency Hybrid Thermodynamic Cycle™ (HEHC) and compact, heavy-fueled rotary engine, the new genset will offer several key benefits.
75 percent lighter and smaller than the currently-fielded AMMPS.
Can be man-portable, instead of requiring a truck, trailer, or forklift.
Occupies only ~9 cubic feet of space.
Targeted to use up to 8% less fuel.
Delivers 5x the power density of comparable diesel piston engines.