07-04-2009, 09:35 PM
The cam has been an integral part of the IC engine from its invention. The cam controls the €œbreathing channels of the IC engines, that is, the valves through which the fuel air mixture (in SI engines) or air (in CI engines) is supplied and exhaust driven out The cam has been an integral part of the IC engine from its invention. The cam controls theœbreathing channelsof the IC engines, that is, the valves through which the fuel air mixture (in SI engines) or air (in CI engines) is supplied and exhaust driven out The aim of all this effort is liberation from a constraint that has handcuffed performance since the birth of the internal-combustion engine more than a century ago. Camless engine technology is soon to be a reality for commercial vehicles. In the Camless valve train, the valve motion is controlled directly by a valve actuator - theres no camshaft or connecting mechanisms. Precise electronic circuit controls the operation of the mechanism, thus bringing in more flexibility and accuracy in opening and closing the valves. The seminar looks at the working of the electronically controlled camless engine with electro-mechanical valve actuator, its general features and benefits over conventional engine