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Miniature two-stroke "diesel engine". Note the T-bar on top for adjusting the compression. A carbureted compression ignition model engine, popularly known as a model diesel engine, is a simple compression ignition engine made for model propulsion, usually model aircraft but also model boats.
Diesel engines are an alternative to methanol glow plug engines. These "diesels" run on a mixture of kerosene , ether , castor oil or vegetable oil , and cetane or amyl nitrate booster. Despite their name, their use of compression ignition , and the use of a kerosene fuel that is similar to diesel , model diesels share very little with full ...
However, the engines had a significant shortcoming: they were based on the same block design as the gasoline engines. As such, the head bolts were not strong enough for a diesel engine, and soon gained a reputation for unreliability and poor performance that damaged the North American passenger car diesel market for the next 30 years.
The 38 8-1/8 engines are inline diesel engines, with combustion occurring between two opposed pistons within a single cylinder liner. The engine has a bore of 8-1/8 inches (206.4 mm), a stroke of 10 inches (254.0 mm) for each piston, and the cylinder height is 38 inches (970 mm). The engine block is of dry block construction. [1]
Witte logo with engine. The Witte Iron Works was a maker of hit and miss engines. The company was started in 1870 by August Witte in Kansas City. His son Ed Witte built the company's first crude gasoline engine in 1886. In 1894 gas engines would be the company's primary focus. [1]
The model 251 engine design was initiated in 1949 and, like the 244 engine, it had a bore (cylinder diameter) of 9 inches (229 mm), and a stroke of 10.5 inches (267 mm). Its designation combines Alco 's identifier for that bore and stroke - 2 - with the year its design was approved for laboratory testing - 1951.
Making a Wankel engine that can burn Diesel engine fuel, but which does not use the Diesel principle, can be useful if Diesel engine fuel is less expensive than petrol. [5] In a 1974 study conducted for the EPA, it was attempted to determine whether or not a Wankel Diesel engine has a better exhaust behaviour than a regular Otto cycle petrol ...
The glow plugs used in model engines are significantly different from those used in full-size diesel engines. In full-size engines, the glow plug is used only for starting. In model engines, the glow plug is an integral part of the ignition system because of the catalytic effect of the platinum wire. The glow plug is a durable, mostly platinum ...