Hydrogen-Powered Vehicle with Metal Hydride Storage and D.I.S. Engine System 880036

A hydrogen-fueled engine system with spark ignition, low pressure direct gas injection and metal hydride as the hydrogen storage medium was developed.
Although it is known that direct injection effectively increase power and prevent backfiring of spark ignited hydrogen engine and that metal hydride is promising as the hydrogen fuel source, no engine system has been made which combines those two features. It is because that the hydrogen gas pressure generated from the metal hydride is generally not high enough for direct injection into the cylinder.
This paper reports the features of the newly developed hydrogen engine system together with the experimental vehicle which carries the engine system, and the on board test results.


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