LiquidPiston introduces XTS-210 25hp heavy-fueled rotary engine; 1/5th size & weight of current dies

[Elderberry]

Green Car Congress 4/4/2023

LiquidPiston introduces XTS-210 25hp heavy-fueled rotary engine; 1/5th size & weight of current diesel piston engines of same power

LiquidPiston, an innovator of compact and efficient engine technology and hybrid power systems, intends to commercialize the XTS-210, a 25-horsepower, two-stroke, supercharged, liquid-cooled, 210cc rotary engine. The XTS-210 is heavy-fuel compatible (diesel, Jet A, JP-8, kerosene) and multi-fuel capable (gasoline, propane, hydrogen). Compared to current piston diesel engines, the XTS-210 design reduces size and weight by nearly 80%, while maintaining comparable power output.



XTS-210 engine core (left) compared to 25 hp Kohler KDW1003 (right).

This announcement builds upon a $9-million development contract from the US Army to develop a prototype core engine based on the XTS-210 design for military applications. (Earlier post.)

Representing the latest generation of LiquidPiston’s X-Engine platform architecture, the XTS-210 engine addresses the fuel efficiency, lubrication, and fuel type limitations of the traditional Wankel rotary engine.

The X-Engine is inherently simple in design, with just two primary moving parts: a rotor and shaft. The 25-horsepower XTS-210 adds up to one bar of boost through supercharging and operates as a two-stroke, producing six combustion events per revolution of the rotor, to deliver smooth power from a lightweight package, roughly the size of a basketball.



The XTS-210 uniquely addresses four major market requirements:

•   5x the power-to-weight (specific power) and power-to-volume (power density), and up to 3x the torque-to-weight (specific torque) compared with piston diesel engines of similar power;

•   Ultra-portable and configurable for operation in both engine-only and hybrid-electric modes. Capable of running up to 7,000 RPM, which matches well with small and lightweight electrical machines, enabling increased mobility for power generation and hybrid applications;

•   Liquid-cooled and capable of either Spark-Ignition (SI) or Compression-Ignition (CI). Designed for military-grade robustness from its inception; and

•   Multi-fuel capability, with initial testing focuses on JP-8/Jet-A fuels for defense and aerospace applications.

More: https://www.greencarcongress.com/2023/04/liquidpiston-introduces-xts-210-25hp-heavy-fueled-rotary-engine-15th-size-weight-of-current-diesel-p.html

STRANGE New Rotary Engine BREAKS Records

Tech Planet  Apr 16, 2023

Liquid Piston inside-out rotary has 5x greater power density and specific power vs. piston diesel engine while running on multiple fuels!


https://www.youtube.com/watch?v=zl6n08HrKZw

[roamer_1]

WOW! That's one crazy motor... Mazda Lives! 

Must be designed for a drone engine, I guess... But would dang near work for a 25HP string trimmer. 

[GtHawk]

WOW! That's one crazy motor... Mazda Lives! 

Must be designed for a drone engine, I guess... But would dang near work for a 25HP string trimmer. 

Maybe it's to run a generator on those EV military vehicles that the democrats and Gaia worshipers want to mandate.

[Elderberry]

The XTS-210 model will meet demanding commercial and military heavy-fuel applications, including mobile electric power generation, primary or hybrid-electric propulsive power for vertical take-off and landing aircraft (VTOL) and small unmanned aircraft systems (sUAS), as well as auxiliary power units for land, air, and marine vehicles.

“There are essentially no diesel engines in the 25-horsepower power class today that are suitable for aerospace and mobile military applications, where size and weight parameters are especially critical," said Dr. Alec Shkolnik, co-founder and CEO of LiquidPiston. "The reduced weight, size, and heavy- or multi-fuel capability of the XTS-210 delivers significant end-system capability and utility benefits, especially for the military to reduce supply chain and logistical burdens in an era where ‘power on the move’ is increasingly important. Following nearly two decades of breakthrough thermodynamics research with various types of rotary diesel engines, we are excited to converge on this latest generation as our first X-Engine model that we plan to bring to market.”

[catfish1957]

WOW! That's one crazy motor... Mazda Lives! 

Must be designed for a drone engine, I guess... But would dang near work for a 25HP string trimmer. 

Remember those RX-7's from the 1970's/80's? 

Super cool, but one person who I know who owned one, said if was not repair friendly or reliable.

Cool, but will it make my F-150 go faster than 20 mph?

[Kamaji]

Remember those RX-7's from the 1970's/80's? 

Super cool, but one person who I know who owned one, said if was not repair friendly or reliable.

Cool, but will it make my F-150 go faster than 20 mph?

I remember those RX-7s.  They also tended to leak oil, and I had an acquaintance who had one that caught fire when he parked it over a pile of leaves.

[roamer_1]

Remember those RX-7's from the 1970's/80's? 

Super cool, but one person who I know who owned one, said if was not repair friendly or reliable.

Cool, but will it make my F-150 go faster than 20 mph?

Had a buddy who successfully street raced an RX-7... Bright lime green... called it the Mosquito.