It’s possible that it could find a life as an engine running on an alternative fuel such as hydrogen or ammonia, but we’re not so sure. If new free piston engines do take off though ...

It's called a free-piston engine, and until now it's been less ... easily be modified to run on almost any liquid fuel including hydrogen, ethanol and diesel. One major problem they'll need ...

Mazda is also using direct injection of the hydrogen to time the combustion more precisely. Piston engines can have issues with backfiring when fueled on H2 but Mazda has been running a fleet of ...

Piston-powered engines can occasionally lose heat to friction ... Astron has also noted, should it be made available, the ...

This emerging technology uses liquid air as a fuel that expands quickly when warmed to power the engine’s pistons. Compared to traditional combustion engines, the liquid air engine is emission-free ...

Reciprocating engines are engines that use one or more pistons to convert pressure into ... to reduce the levelized cost of energy (LCOE) of hydrogen generation powered by large-scale PV.