The birth of the automobile
Phoenix engine and spray-nozzle carburetor (1892 – 1893)
In 1892 the first two-cylinder in-line version of a new Daimler engine known as the “N” engine gave a major impulse to engine technology. The engine was heralded as a sensation by automotive specialists who spontaneously christened it the “Phoenix engine ... rising from the ashes of previous engine designs.” To reduce the weight, the two vertical, parallel cylinders were cast in one block. The cylinder block was bolted to the spherical crankcase. The smaller distance between the cylinders reduced crankshaft torsion.
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Daimler Motor Carriage (“Phoenix” Car) with a 6 hp Phoenix engine of 1899.
The now outdated radial groove control system was replaced by a camshaft which moved the upright exhaust valve – the overhead intake valve operated automatically – and the unit featured flywheel cooling and the brand-new spray-nozzle carburetor. The output ranged from two to eight hp (1.5 to 5.9 kW), depending on engine displacement. From 1897 it was available with a tubular radiator, the hot tube ignition was replaced by low-voltage magneto ignition in the fall of 1898, and a four-cylinder version appeared in the same year.
 
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The 1892 “Phoenix” engine designed by Wilhelm Maybach.
Maybach’s pioneering invention of the 1893 spray-nozzle carburetor became the model for all carburetors for decades to come. It permitted the immediate and flexible adjustment of mixture formation according to changes in engine output and made for increased engine efficiency. It also saved space, as it was much smaller than the float carburetor.
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