The possibility of establishing a hydrogen-fueled compression ignition engine has been investigated experimentally using a conventional swirl chamber diesel engine. Two different attempts are included in the work; the one dealing with the compression ignition on an air-aspirated engine system; and another with that at an engine operating with an argon-oxygen charge. In the former, the effect of preliminary fueling was clarified in detail. It has been suggested that both pilot injection and fuel leakage from the injector can aid ignition of the hydrogen fuel bringing about a smooth operation. A discussion is given of the mechanism of stabilizing ignition, from the viewpoint of thermal interactions between the engine cycles. In the latter attempt, a closed-cycle engine systems is oriented and has been simulated by supplying a 21 percent oxygen containing mixture to the test engine. The result has indicated that ignition and the engine operation are satisfactory without any ignition aid. A considerable gain has been also proved in indicated thermal efficiency at the argon mixture. Also a practical feasibility of a closed-cycle compression-ignition engine has been discussed. (Puschmann)
A study on hydrogen-fueled compression-ignition engines
Untersuchung ueber Kompressionszuendungsmotoren mit Wasserstoff als Treibstoff
1980
15 Seiten, 11 Bilder, 9 Quellen
Conference paper
English
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