British Liquid Nitrogen Engine 700 Times More Powerful Than Electric Counterparts

In the world of automotive technology, we’ve grown accustomed to rapid developments: electric drives, fuel cells, hybrids. But now, something entirely different is emerging – an internal combustion engine that runs without gasoline, diesel, or even electricity. Instead, its fuel is… liquid nitrogen.

Behind this groundbreaking solution is the British company Dearman, specializing in eco-friendly mobility. Their engine delivers up to 700 times more power than traditional electric engines and other nitrogen-based systems. Crucially, this technology not only boasts impressive performance, but also aligns with the growing emphasis on zero emissions and energy efficiency.

How does the Dearman engine work?
The principle behind this innovative engine is surprisingly simple, yet brilliant. Liquid nitrogen, stored at -196°C under atmospheric pressure, is injected into the engine chamber in droplet form. It then mixes with clean water or antifreeze. The result? The nitrogen rapidly expands – increasing its volume up to 700 times – and turns into vapor, which powers the engine’s pistons.

All this happens without burning fossil fuels, emitting exhaust gases, or requiring complex charging infrastructure. Unlike hydrogen or electricity, liquid nitrogen is easy to transport and safely store. As a chemically inert element, it poses no risk of ignition or toxic leakage.

More than propulsion: using the cold
One of the most unique side benefits of the Dearman engine is the cold it generates during operation. This makes it an ideal solution not only for passenger vehicles but also for the entire cold chain sector.

Dearman’s technology has already been tested in real-world conditions. The engine was integrated into refrigerated delivery trucks used by the British supermarket chain Sainsbury’s. The results? A reduction of CO₂ emissions by 1.6 million tons in just two months. Cooling occurs automatically while the engine is running – with no need for additional compressors or refrigerants.

Given the growing demand for eco-friendly transport of fresh food, cold logistics is becoming one of the key areas for decarbonization. Liquid nitrogen engines may therefore play a strategic role here.

Advantages over other technologies
Today’s zero-emission vehicle market is dominated by electric and hydrogen-based solutions. Each has its advantages – but also significant limitations. Electric vehicles struggle with long charging times and limited range. Hydrogen requires complex infrastructure and remains expensive to produce.

Dearman offers an alternative that addresses these problems – and goes further: significantly higher power at lower cost and completely emission-free operation. Moreover, the engine can be easily integrated into existing drivetrains without the need to design entirely new vehicles.

It’s also worth noting that the system doesn’t require batteries or energy conversion – all power is generated mechanically through liquid expansion. This makes Dearman’s technology particularly resilient to issues like material degradation or the need for battery recycling.

What’s next for the Dearman engine?
Although the technology seems promising, its widespread use still depends on a few key factors: production scale, implementation costs, and the availability of liquid nitrogen. The latter can be a byproduct of many industrial processes, making it relatively cheap and sustainable to obtain.

Dearman is already working on scaling up the technology – targeting both public and commercial transport sectors. Talks are also underway with potential industrial partners who see liquid nitrogen as an opportunity for an energy revolution.

A humble substance, incredible power
The Dearman engine reminds us that sometimes the greatest innovations lie in the most basic substances. Nitrogen, which makes up over 78% of our atmosphere, was long overlooked as a potential energy source. Today, it could become the key to a new era of transportation – efficient, eco-friendly, and accessible.

Will we see passenger cars, trucks, or even buses powered by liquid nitrogen on our roads in the coming years? If Dearman’s technology meets the challenges of commercialization, the answer could well be: yes.