Skip to main content

LIquidPiston’s tiny but powerful rotary engine could usher in a new era for drones

Building the perfect engine for a drone is no easy task. They require small, high-powered engines with a high level of fuel efficiency and minimal vibrations — particularly if they’re being used for filming or taking measurements.

Those challenging specs may put off all but the hardiest engineers. It’s done nothing to dim the enthusiasm of father-and-son team Nikolay and Alexander Shkolnik, however. Nikolay and Alexander are behind LiquidPiston, a Connecticut-based company which has spent the past 13 years — and $18 million — coming up with a cutting-edge alternative to the classic rotary engine. And they’re getting closer by the day!

Recommended Videos

“We started with the mission statement of building an engine that would have much higher efficiency, consume less fuel, be smaller, and quieter,” Nikolay Shkolnik tells Digital Trends. “We wanted to create an engine that is better than every other engine on any single parameter. We were very ambitious!”

There are plenty of problems with rotary engines: most notably their poor fuel economy, tendency to burn lots of oil, and distinctly environmentally unfriendly emission of CO2. These are all areas the X Mini shows heaps of promise — which presumably explains why it has managed to net a $1 million deal with DARPA.

Please enable Javascript to view this content

While Nikolay Shkolnik acknowledges that LiquidPiston’s mission is not yet completed “by any stretch of the imagination,” this week the company’s X Mini engine moved out of the lab and into the real world with a dazzling demo in which it showed itself capable of powering a go-kart.

Long-term, the plan is for the engine to power the aforementioned drones, but also boats, electric cars, and even power generators. Unlike many technologists, however, long-term for Nikolay doesn’t necessarily mean decades down the line.

“We’re definitely not ready for production yet, but we will be ready for testing of our small engine in drone applications in the next 3-6 months,” he says.

Luke Dormehl
Former Digital Trends Contributor
I'm a UK-based tech writer covering Cool Tech at Digital Trends. I've also written for Fast Company, Wired, the Guardian…
Volvo’s EX90 electric SUV features an Abbey Road sound system
volvo ex90 abbey road sound system 5 59366c

With deliveries of Volvo’s much-anticipated EX90 model finally coming through in the U.S., drivers who are also music fans may be heartened by discovering what the electric SUV’s sound system is made of.

They might even get a cosmic experience if they decide to play The Beatles’ 1965 classic hit Drive My Car on that sound system: The EX90 is the first vehicle ever to feature an Abbey Road Studios’ mode, providing a sound quality engineered straight out of the world’s most famous music recording studios. The Beatles enshrined Abbey Road in history, when they gave the studios' name to their last album in 1969.

Read more
Ending EV tax rebate could seriously harm Tesla, Chevrolet, and Volkswagen sales, study finds
A digital image of Elon Musk in front of a stylized background with the Twitter logo repeating.

Many analysts predict that sales of electric vehicles will be hit should the incoming Trump administration carry out its plans to end the $7,500 federal tax incentives on EV purchases and leases.

While predictions vary, with some expecting this would lead to a 27% drop in demand for EVs, research firm J.D. Power took an extra step and asked consumers how rebates had influenced their decision to buy an EV.

Read more
Volkswagen’s new electric Golf will get the Rivian treatment
volkswagens new electric golf will get the rivian treatment 2024 vw facelift

The Golf represents “the heart” of the Volkswagen brand, the automaker said at the start of 2024, as the iconic model celebrated five decades of existence.

A 50th anniversary also seems like the right occasion to fully bring the Golf into the 21st century: While we already knew that VW is reviving an electric version of the model, the German automaker just revealed the next-gen Golf will also benefit from Rivian’s cutting-edge software and electrical systems.

Read more