To achieve high power and high efficiency in a hydrogen-fueled engine for all load conditions, the dual-injection hydrogen-fueled engine, which can derive the advantages of both high efficiency from external mixture hydrogen engine and high power from direct cylinder injection was developed. For verifying the feasibility of the above engine, a high-pressure hydrogen injector of ball-valve type and actuated by a solenoid was developed. A systematic experimental study was conducted by using a modified single-cylinder dual-injection hydrogen-fueled engine, which was equipped with both an intake injector and high-pressure in-cylinder injector. The results showed that (i) the developed high pressure hydrogen injector with a solenoid actuator had good gas tightness and fine control performance, (ii) the transient injection region, in which injection methods are changed from external fuel injection to direct-cylinder injection, ranged from 59 to 74% of the load, and (iii) the dual-injection hydrogen-fueled engine had the maximum torque of direct-cylinder fuel injection and the maximum efficiency of external fuel mixture hydrogen engines.
The Development of a Dual-Injection Hydrogen-Fueled Engine With High Power and High Efficiency
Contributed by the IC Engine Division of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division January 20, 2003; final revision received by the ASME Headquarters April 23, 2004. Assoc. Editor: D. Assanis.
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Kim , Y. Y., Lee, J. T., and Caton, J. A. (November 22, 2005). "The Development of a Dual-Injection Hydrogen-Fueled Engine With High Power and High Efficiency ." ASME. J. Eng. Gas Turbines Power. January 2006; 128(1): 203–212. https://doi.org/10.1115/1.1805551
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