M. Algarni, A SIMPLE AND RELIABLE APPROACH FOR THE DIRECT-INJECTION OF HYDROGEN IN INTERNAL-COMBUSTION ENGINES AT LOW AND MEDIUM PRESSURES, International journal of hydrogen energy, 20(9), 1995, pp. 723-726
Citations number
8
Categorie Soggetti
Energy & Fuels","Environmental Sciences","Physics, Atomic, Molecular & Chemical
Direct injection of hydrogen in internal combustion engines is being r
ecognized as the most appropriate approach to smooth and efficient ope
ration. However, control techniques for the direct injection of hydrog
en are all built around the idea of spring-loaded puppet valves, contr
olled mechanically through rocker arm and camshaft arrangements, or us
ing electromagnetic coils. In both approaches, technical difficulties
usually arise because of the relatively complicated multi-component ar
rangements and because of the excessive temperatures at the top of the
cylinder head. To help solve these problems, an assembly comprising a
simple hydrogen injector, separated from a simple rotary controller,
is introduced in this paper. The hydrogen injector assembly worked in
our laboratory, safely and reliably, without the need for springs, coi
ls or cams. Nevertheless, if required, any of these components could b
e incorporated in a separate controller, away from the high temperatur
e cylinder head. In this way, simple electromagnetic or mechanical con
trollers could be reliably used.