high cost
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I'm not aware that there ever was such an engine.
This is a new and emerginf technology and needs to have a lot of research work for this.. so we have to study about this new technology too. Like the innovative design of NIYKADO Six Stroke Engine.
The Yamaha EF 600 generator has a four stroke engine and uses gasoline with no oil added to the fuel. It will run for about six hours on one fill of the gas tank, about 0.5 gallon (US).
Chrysler outboards manufactured after 1965 require a 50:1 ratio, roughly one pint of 2 stroke oil, to six gallons of fuel.
i am not a scholar in this of some sort, but to my knowledge the following are the major disadvantagescomplex head designcomplex cam design foe exhaust (due to 2 exhaust strokes)heavier engine (due to combustion chamber)thermodynamically the engine is stable, yet the designing of parts becomes more and more complex as the torque requirement increases
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168.8 cubic inches
Of course it is. Lots of outboard motors are up to six cylinders and are two strokers.
The KX 125 two-stroke motorcycle typically has six gears. This configuration allows for a good balance of acceleration and top speed, making it suitable for both motocross and trail riding. The six-speed transmission is designed to maximize the performance of the two-stroke engine.
Yes they do exist. You can check this out in BMW 3 series convertibles for instance, they have 6 cylinder petrol engines. They either come in a straight line arrangement or v6 arrangement. Some of the v6 engine cars were built as far back as 1905.
The basic difference is there are two 'power' strokes in the six stroke cycle. The extra power stroke is obtained by utilising what would be waste thermal energy to heat air (or steam) and injecting this into the cylinder at the appropriate time to provide the extra power stroke. There are claims of up to a 40% reduction in fuel consumptions and reduced emission. However, there are addition complications with the extra parts, timing etc., required and subsequent increase in weight. There are no commercially viable ones on the market generally at present though with future improvements this may change.