. . "Performance of a high-speed compression-ignition engine using multiple orifice fuel injection nozzles"@en . "Performance of a high-speed compression-ignition engine using multiple orifice fuel injection nozzles" . . . . . . . . . . . . . . . . . . "This report presents the test results during an investigation to determine the relative performance of a single-cylinder, high-speed, compression-ignition engine when using fuel injection valve nozzles with different numbers, sizes, and directions of round orifices. A spring-loaded, automatic injection value was used, centrally located at the top of a vertical disk-type combustion chamber formed between horizontally opposed inlet and exhaust valves of a 5-inch by 7-inch engine."@en .