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Fairbanks Morse Opposed Piston liner and water jacket. 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).
A 1914 Simpson's balanced two-stroke engine. An opposed-piston engine is a piston engine in which each cylinder has a piston at both ends, and no cylinder head.Petrol and diesel opposed-piston engines have been used mostly in large-scale applications such as ships, military tanks, and factories.
Fairbanks-Morse supplied the 800 hp (600 kW), five-cylinder 8 in × 10 in (203 mm × 254 mm) opposed piston engine prime mover. The units were configured in a highly unusual 2-A1A wheel arrangement (later converted to 3-A1A) [1] mounted atop a pair of road trucks, and equipped with a front swing coupler pilot.
This opposed piston aero-engine appears superficially similar to a true flat-four "boxer" engine, but is actually significantly different. It has two ported cylinders with a crankshaft at each end and four pistons in total.
OPOC engine (labels in German) Gobron-Brillié opposed-piston engine from 1900, which the OPOC engine's basic design emulates. The OPOC engine is a two-stroke reciprocating internal combustion engine in which each cylinder has a piston at both ends, and no cylinder head or mechanical valvetrain. The opposed cylinder design has two cylinders ...
Sulzer ZG9 was a pre-World War II opposed-piston two-stroke diesel engine by Sulzer. [1] [2] The engine was available with a choice of two, three and four cylinders (2ZG9, 3ZG9, 4ZG9); the two-cylinder version developed 120 bhp. It used a piston scavenge pump. This was mounted vertically above one rocker, driven by a bellcrank from the main ...
The FM H-15-44 was a diesel locomotive manufactured by Fairbanks-Morse from September 1947 to June 1950. The locomotive was powered by a 1,500-horsepower (1,100 kW), eight-cylinder opposed piston engine as its prime mover, and was configured in a B-B wheel arrangement mounted atop a pair of two-axle AAR Type-B road trucks with all axles powered.
[2] Vultee XA-19A with Lycoming O-1230 installed. The same year the USAAC became interested in the O-1230, and began supporting the engine development program. In 1936, the single-cylinder development tests exceeded expectations, passing its 50-hour test requirement. The full-size engine was ready for testing in 1937, and was rated at 1,000 hp.