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The fuel/air mixture strikes the cylinder head, then follows the curvature of the combustion chamber, and then is deflected downward. This not only prevents the fuel/air mixture from traveling directly out the exhaust port, but also creates a swirling turbulence which improves combustion efficiency, power, and economy. Usually, a piston ...
Two-stroke oil (also referred to as two-cycle oil, 2-cycle oil, ... with petrol/gasoline at a volumetric fuel-to-oil ratio ranging from 16:1 to as low as 100:1.
The advantage of using equivalence ratio over fuel–oxidizer ratio is that it takes into account (and is therefore independent of) both mass and molar values for the fuel and the oxidizer. Consider, for example, a mixture of one mole of ethane (C 2 H 6) and one mole of oxygen (O 2). The fuel–oxidizer ratio of this mixture based on the mass ...
A gasoline engine burns a mix of gasoline and air, consisting of a range of about twelve to eighteen parts (by weight) of air to one part of fuel (by weight). A mixture with a 14.7:1 air/fuel ratio is stoichiometric, that is when burned, 100% of the fuel and the oxygen are consumed.
This allows it to operate with a lean mixture comprising mainly air. Together with the high compression ratio, this makes it more economical than the petrol or gasoline Otto engine. It also does not require either a carburettor to mix the air and fuel before delivery, or a spark plug or other ignition system. Another consequence is that to ...
Along with running properly at different elevations, Robert also mentioned that these fuel-injected two-strokes deliver on their promise of making the bike ride like a four-stroke.
The new 110 engine embodies the same advanced principles of high-speed, two-cycle design as the 71 series, of which more than 45,000,000 horsepower have been produced by Detroit Diesel since 1937. The horsepower rating of 275 hp (205 kW) at 1800 r.p.m. is attained with a b.m.e.p. of 92 lb (42 kg) per square inch.
A four-stroke spark-ignition engine is an Otto cycle engine. It consists of following four strokes: suction or intake stroke, compression stroke, expansion or power stroke, exhaust stroke. Each stroke consists of 180 degree rotation of crankshaft rotation and hence a four-stroke cycle is completed through 720 degree of crank rotation. Thus for ...