Who and what year was the four stroke engine invented.
In May 1876, Nicolaus Otto built the first practical four-stroke piston cycle internal combustion engine. He continued to develop his four-stroke engine after 1876 and he considered his work finished after his invention of the first magneto ignition system for low voltage ignition in 1884. Otto's patent
was overturned in 1886 in favor of the patent granted to Alphonse Beau de Roaches for his four-stroke engine. However, Otto built a working engine while Roaches' design stayed on paper. On October 23, 1877, another patent for a gas-motor engine was issued to Nicolaus Otto, and Francis and William Crossley.
Nicolaus Otto invented the gas motor engine. An engineer and experimenter, Nicolaus Otto invented the first practical alternative to the steam engine in 1876 -- the first four-stroke internal combustion engine. He called it the "Otto Cycle Engine."
In May 1876, Nicolaus Otto built the first practical four-stroke piston cycle internal combustion engine. He continued to develop his four-stroke engine after 1876 and he considered his work finished after his invention of the first magneto ignition system for low voltage ignition in 1884. Otto's patent
was overturned in 1886 in favor of the patent granted to Alphonse Beau de Roaches for his four-stroke engine. However, Otto built a working engine while Roaches' design stayed on paper. On October 23, 1877, another patent for a gas-motor engine was issued to Nicolaus Otto, and Francis and William Crossley.
Nicolaus Otto invented the gas motor engine. An engineer and experimenter, Nicolaus Otto invented the first practical alternative to the steam engine in 1876 -- the first four-stroke internal combustion engine. He called it the "Otto Cycle Engine."
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