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Étienne Lenoir

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Étienne Lenoir was a Belgian-born French engineer recognized for developing the first commercially successful internal-combustion engine. He constructed his initial engine in 1859 and secured a patent for the design in 1860. Unlike subsequent combustion engines, Lenoir's double-acting design ran on illuminating gas and utilized an electric spark ignition system. His invention initially powered industrial machinery and was later adapted for early road vehicles, marking a foundational step in automotive engineering history.

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What did Étienne Lenoir invent?

Étienne Lenoir, a Belgian-born French engineer, built a commercially successful internal-combustion engine in 1859 and patented it in 1860. His engine was one of the first practical internal-combustion engines to be manufactured and sold for industrial use.

What type of fuel did Étienne Lenoir's engine use?

Lenoir's engine was a double-acting gas engine that used coal gas and air as fuel. It was primarily used as a stationary power source for industrial machinery rather than for transportation.

Did Étienne Lenoir build a vehicle with his engine?

Lenoir did adapt his engine to power a road vehicle around 1860, which is often cited as one of the earliest self-propelled road vehicles. However, the engine was relatively inefficient and achieved its greatest commercial success as a stationary industrial power source.

How did Lenoir's engine compare to later internal-combustion engines?

Lenoir's engine was significantly less efficient than the four-stroke engines that followed, particularly Nikolaus Otto's design from the 1870s. Despite this, it was commercially successful enough to establish the viability of internal-combustion technology for practical applications.

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