Schwartz, Jeffery, Schwaab, Mack, Blumenthal & Koch
Method of operating a single spot fuel injected internal combustion engine and apparatus for same
 A single spot fuel injector is energized only twice per revolution of the crankshaft of the engine so that under given operating conditions the injections coincide with the TDC and BDC positions of a piston of a selected cylinder of the engine. Under higher engine speed operation, the injection timing is advanced to improve the fuel distribution to the cylinders. When the engine operates at an engine speed below a predetermined level it is possible for the injector to be energized three times per revolution of the crankshaft. 
Nissan Motor Co., Ltd.
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inventional additional inventional inventional inventional
Motomi Yuko Masaaki Tadahiro
Arai Sugo Saito Yamamoto