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The efficiency of the two-stroke engine depends on effective scavenging, the more complete replacement of the old spent charge with a fresh charge. Apart from large diesels with separate superchargers, two-stroke engines are generally piston-ported and use their crankcase beneath the piston for compression. The cylinder has a transfer port ...
The advantage of a rotary valve is that it enables the two-stroke engine's intake timing to be asymmetrical, which is not possible with piston-port type engines. The piston-port type engine's intake timing opens and closes before and after top dead center at the same crank angle, making it symmetrical, whereas the rotary valve allows the ...
Low piston port timing produces 84 hp (63 kW) at 4950 rpm with a very flat torque curve. [1] 3701 high performance engine Three-cylinder in-line, two stroke aircraft engine with three Bing 34 mm slide carburetors or fuel injection. High piston port timing produces 100 hp (75 kW) at 6000 rpm with a steep torque curve. [1]
Pages in category "Piston ported engines" ... Crankcase compression two-stroke engine; F. Fairbanks Morse 38 8-1/8 diesel engine; M. Michel engine; N. Napier Deltic; O.
The KT100 is a simple and rugged air-cooled engine that uses piston-ported intake induction with a Walbro WB-3A carburetor. The KT100 is a popular high-performance two-stroke kart racing engine. It comes in various forms used in many countries. The KT100J is slightly smaller with fewer options in comparison to its bigger brother, the KT100SE.
In 1914, the Simpson's Balanced Two-Stroke motorcycle engine was another opposed-piston engine using a single crankshaft beneath the centre of the cylinders with both pistons connected by levers. [18] This engine was a crankcase compression design, with one piston used to uncover the transfer port, and the other to open the exhaust port.