150cc six-stroke Taiwanese single-cylinder bike from Yingang is ready to roll. Piston moves from BDC to TDC and six stroke cycle is completed.ĪpplicationThe industry trend away from cheaper two-stroke power in favor of costlier but cleaner four-stroke engines in both Europe, Japan and South East Asia makes a concept like the Beare six-stroke, which offers the best of both worlds, project a strong case towards volume manufacture. The air sucked into the cylinder during the fifth stroke is removed to the atmosphere through the air exhaust valve. Just before the fifth stroke, fresh water is injected directly into the hotcombustion chamber through the engine's fuel injector pump, which is quickly turned to superheatedsteam, which causes the water to expand to 1600 times its volume and forces the piston down for an additional Power stroke.6th stroke (2nd exhaust stroke) : During the sixth stroke, the air exhaust valve remains open. In a six-stroke engine, when the combustion chamber temperature reaches approx. Fresh air from the air inlet valve enters the cylinder through the secondary air induction system. Piston moves from BDC to TDCĥth stroke (2nd power stroke) : During the fifth stroke, the exhaust valve remains close and the air inlet valve open.
Piston moves from TDC to BDC.4th stroke (exhaust stroke) : During the fourth stroke, the exhaust valve opens to remove the burned gases from the engine cylinder. As well as extracting power, the additional stroke cools the engine and removes the need for a cooling system making the engine lighter and giving 40% increased efficiency over the Otto Cycle.ġst stroke (suction stroke) : During the first stroke the inlet valve opens and air-fuel mixture from carburetor is sucked into the cylinder through the inlet valve and piston moves from TDC to BDC.2nd stroke (compression stroke) : During the second stroke, piston moves from BDC to TDC, both the inlet valve and exhaust valve are closed and the air-fuel mixture is compressed.3rd stroke (1st power stroke) : During the third stroke, power is obtained from the engine by igniting the compressed air- fuel mixture using a spark plug. Designs either use steam or air as the working fluid for the additional power stroke. Working principalA six stroke engine describes a number of different approaches in the internal combustion engine to capture the waste heat from the four stroke Otto cycle and use it to power an additional power and exhaust stroke of the piston.
#SIX STROKE IC ENGINES FREE#
A six stroke engine derived its name from the fact that it is a mixture of two and four stroke engine.Two technical modifications in 4-stroke to 6-stroke.Six stroke engines captures the wasted heat from the 4-stroke Otto cycle, creates steam and cools engine by providing free power stroke. IntroductionThe term six stroke engine describes two different approaches in the internal combustion engine, developed since the 1990s, to improve its efficiency and reduce emissions. (1216BEME 30061)ĪbstractModern world thrives on heat energy used in different forms.Automobile industries is ever-growing industry.95% of the automobile run on IC engines which are powered by fossil fuels.Aim of thermal is to convert the heat energy to mechanical energy.Efficiency of automobile is 30%In a six stroke engine there are six strokes and out of these there are two power strokes.The automotive industry may soon be revolutionized by a new six stroke design which adds a second power stroke, resulting in much more efficiency with less amount of pollution. Prepared by : Trambadiya vaibhav r.(1216BEME30059) : Vachhani yagnik k.
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