Coefficients of discharge of fuel-injection nozzles for compression-ignition engines
A 1932 technical report from the National Advisory Committee for Aeronautics, held in the NASA Technical Reports Server, presenting laboratory measurements of coefficients of discharge for fuel-injection nozzles used in compression-ignition engines. The pictures are engineering drawings: a sectioned adapter and stem-seat nozzle, a graph of discharge coefficient against lift for several orifice diameters, and an apparatus diagram of an air-flow test rig with gauges and a pump. A designer could take from them the plain line-drawing vocabulary of early twentieth-century mechanical diagrams, with hatched section fills, leader labels and dimension lines.
