10 Facts About Gas engines

Gas engines engine is an internal combustion engine that runs on a gaseous fuel, such as coal gas, producer gas, biogas, landfill gas or natural gas.

The changeover to four-stroke Gas engines was remarkably rapid, with the last atmospheric Gas engines being made in 1877.

Anson Engine Museum in Poynton, near Stockport, England, has a collection of engines that includes several working gas engines, including the largest running Crossley atmospheric engine ever made.

Manufacturers of gas engines include Hyundai Heavy Industries, Rolls-Royce with the Bergen-Engines AS, Kawasaki Heavy Industries, Liebherr, MTU Friedrichshafen, GE Jenbacher, Caterpillar Inc, Perkins Engines, MWM, Cummins, Wartsila, GE Energy Waukesha, Guascor Power, Deutz, MTU, MAN, Scania AB, Fairbanks-Morse, Doosan, and Yanmar.

Gas engines are rarely used for standby applications, which remain largely the province of Diesel engines.

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Liquefied natural gas engines are expanding into the marine market, as the lean-burn gas engine can meet the new emission requirements without any extra fuel treatment or exhaust cleaning systems.

Use of engines running on compressed natural gas is growing in the bus sector.

Since natural gas, chiefly methane, has long been a clean, economical, and readily available fuel, many industrial engines are either designed or modified to use gas, as distinguished from gasoline.

Early gas engines used a three-valve system, with separate inlet valves for air and gas.

Gas engines running on biogas typically have a slightly lower efficiency and syngas reduces the efficiency further still.