Variable Voltage And Variable Frequency drives

Presented By:
P.NATARAJU S.E.V.S.RAGHU VARMA
3rd year E.E.E. 3rd year E.E.E.

Abstract:-
Our varying industrial needs demand more precise control of the outputs of our basic electrical prime movers i.e, THE MOTORS. Basically dc motors are easy to control compared to their ac counter parts, but they have their own limitations with increase in capacity. Conversely ac motors in particular squirrel cag ....etc

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Sir
This is Vilaskumar, Send me the project report of the VERIABLE COMPRESSION RATIO ENGINE FABRICATION PERFORMANCE ANALYSIS. ....etc

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Construction and working application advantage disadvantages ....etc

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VANOS (Variable Nockenwellen Steuerung) is an automobile variable valve timing technology developed by BMW in close collaboration with Continental Teves. VANOS varies the duration of the intake valves by moving the position of the camshafts in relation to the drive gear. This movement varies from 6degrees of advanced to 6degrees of retarded camshaft timing. BMW recently began offering 'double' VANOS, which operates on the exhaust camshaft as well, on a number of its cars. ....etc

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SAAB COMBUSTION CONTROL SYSTEM
ABSTRACT
The Saab Combustion Control (SCC) System is a new engine control system developed to lower fuel consumption while radically reducing the exhaust emissions but without impairing engine performance. By mixing a large proportion of exhaust gases into the combustion process, the fuel consumption can be reduced by up to 10 percent, at the same time and also lowers the exhaust emissions. Compared to todayâ„¢s engines, this will almost halve the carbon monoxide and hydrocarbon emissions, and will cut the ....etc

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ABSTRACT


The engines that are used now a days spot a constant compression ratio. It is economic for the compression ratio must decrease with the speed. But there is a practical difficulty for the engines to alter its compression ratio while in working. But there has been a break through, researchers have found out new ways by which the compression ratio can be altered. Thus comes a new breed of engines called the Variable Compression Ratio Engines. Volkswagen has come up with a production version too. In this type the ....etc

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need some ideas for implementing of vcr engine in two wheeler si engines ....etc

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i need this pdf file can you please make it available for me. thanx ....etc

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Valve timing is the regulation of the points in the combustion cycle, at which the valves are set to open and close. Since the valves require a finite period of time in which to open or close without abruptness, a slight lead-time is always necessary for proper operation. The design of the valve-operating cam provides for the smooth transition from one position to the other, while the cam setting determines the timing of the valve.

In a typical four-stroke engine, the inlet valve is set to open before TDC (top dead centre), towards the end o ....etc

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A80MCJ89 that the information are. very important to me use in a seminar topics

A80MCJ89 that the information are. very important to me use in a seminar topics ....etc

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