Post by Zottohttps://www.sae.org/news/2020/06/deutz-open-approach-to-propulsion
"Hydrogen combustion engines are another longer-term prospect that
Deutz is exploring with its Munich-based partner Keyou. On display
at ConExpo was a Deutz TCD 7.8 base engine converted to hydrogen
operation using prototype Keyou-inside technology. Modified and
ustomized features of the 180-kW (240-hp) 6-cylinder engine
include an intake section with H2 rail and injection system,
cylinder head with ignition system, piston and ring package,
exhaust-gas turbocharger, exhaust-gas manifold and exhaust-gas
recirculation cooler, and ECU software data input."
“The big challenge of hydrogen solutions is always the infrastructure."