Seminar On Wankle Rotary Combustion Engine

Seminar On Wankel Rotary Combustion EngineArya Institute Of Engg. And TechnologySubmitted by:-Ritesh chaurasia(11EAIME050)Submitted to:-Mr. Sandeep jhamb(Mech.HOD)

Introduction:-The Wankel engine is a type of internal combustion engine using an eccentric rotary design to convert pressure into rotating motion.The Wankel engine delivers advantages of: simplicity, smoothness, compactness, high revolutions per minute, and a high power-to-weight ratio.The engine was invented by German engineer Felix Wankel.The Wankel engine has the unique advantages of compact design and low weight over the most commonly used internal combustion engine employing reciprocating pistons. Introduction:-These advantages have given rotary engine applications in a variety of vehicles and devices, including: automobiles, motorcycles, racing cars, aircraft, go-karts, jet skis, snowmobiles, chain saws.

History:-In 1951, the German engineer Felix Wankel began development of the engine at NSU Motorenwerke AG.Two engines were developed. The first was by Felix Wankel, the DKM motor. The second, the KKM motor, was developed by Hanns Dieter Paschke, which was adopted forming the modern Wankel engine.The Wankel engine design used today was not designed by Felix Wankel. Titling the engine 'the Paschke engine' would be more apt.Why Is Wankel Engine?To further our modeling skillsObtain a better understanding of the workings of the rotary engine and the thermodynamic cycles that go on withinTransmission was also a challenging piece of machineryGood example of thinking outside the box To inform people that there are alternatives to the conventional four stroke cylinder engineIntake Stroke:The fuel/air mixture is drawn in the intake port during this phase of the rotation.

Compression stroke:The mixture is compressed here.

Power Stroke:Spark plug fires and the mixture burns here,driving the rotor around.

Exhaust Stroke:And the exhaust is expelled here.

Four Stroke:All the four strokes intake, compression, power and exhaust are going on at the same time around the rotor

Cylinder Vs Rotary Engine:Uses pistons to regulate intake and exhaust of fuel and gasHas a spinning rotor that creates three separate chambers and regulates the inflow and outflow of gassesAll four strokes, intake compression, combustion and exhaust occur in same cylinderEach chamber draws in air and fuel, is compressed, ignited and combusted then expelled creating power while at the same time forcing the other two chambers to do the same.

Pistons continually reverse direction creating more wear and tear on the engine

Rotors move in a continuous direction making it smoother

Lower rev limit

Only about three moving parts creating less friction and less possibility for error

Applications:

RX5RX8RX7RX2Challenges And Difficulties:TransmissionMany moving partsGear ratios were very difficult to get right EngineMeasurements for rotor pieces and rotor housing were difficult to obtainSome pieces needed to be generated by equationsInterference between housing and rotor was an issueInserting gear constraints between all moving parts was difficult to get right AssemblyPieces needed to be continually adjusted to fit together properlySummary:The Wankel Rotary engine is still a promising piece of technologyMazda continues to spend money on the concept with the hope of improving its fuel efficiencyThere are also several other types of rotary engines that run on various types of fuelWe utilized and furthered all the skills taught to us in ProE class including assembly, constraints, sweeps, blends, gear connections, animations