Innovation
for sustainable mobility

DEUTZ combustion engines have been setting standards for over 160 years. And in recent years, the company has 
been investing heavily in alternative drive systems. The TCG 7.8 H2 combines both. Indeed, 75 percent of this 
hydrogen combustion engine is based on the established TCD 7.8 diesel engine. It is just as powerful, durable, and 
reliable. 

Basing the hydrogen engine on proven technology has several advantages. There are no uncertainties in terms 
of its functionality, thanks to its tried-and-tested drive mechanism and its production readiness. DEUTZ also guarantees a high level of serviceability, including rapid and low-cost 
parts supply. Service engineers do not need to be retrained. All they require is a brief introduction to the new H2 components.

A hydrogen engine’s efficiency depends largely on its design, much as it does in a conventional internal combustion engine. During the development of our DEUTZ TCG 7.8 H₂ hydrogen engine, we specifically analyzed the injection system components to ensure that they meet the requirements of the engine and of its use in off-highway applications.

The outcome is a sophisticated technological solution that enables drives operation in commercial vehicles. With hydrogen engines, however, there is a possibility that NOx emissions could occur in isolated operating states. In this case, most NOx emissions are eliminated through the use of an aftertreatment system.