04-08-2012, 03:33 PM
ADVANCES IN I.C ENGINES
ADVANCES IN I.C ENGINES.ppt (Size: 1.12 MB / Downloads: 55)
INTRODUCTION
The use of diesel engines in cars is becoming increasingly important. At the same time, diesel engines are attracting more and more criticism .
For an advanced car diesel engine not only a refinement of the injection technique but also above all a lengthening of the mixture preparation time is of elementary importance.
Here, the "5-Phase-Method" offers by far the best solution to the problem for diesel engines .
OBJECTIVES
The 5-Phase-Method allows the reduction of engine size by increasing the rotational speed .
With the 5-Phase-Engine sufficient time is gained for mixture preparation and the combustion process and hence better energy exploitation and a reduction in pollutant discharge are obtained.
Optimization of the process is effected by the optimum choice of the position and moment for fuel injection and the ignition, by the use of any desired, if necessary slow-burning fuels and fuel mixtures (e.g. naphtha with water).
Mode of operation of the 5-Phase-Diesel Engine
After induction, the piston compresses air into a combustion chamber, which at said instant is open towards the cylinder chamber.
During further rotation of the combustion chamber, its connection opening to the cylinder chamber is closed. Then, in the course of a half revolution of the combustion shaft .
After combustion, the combustion gases pass through the now open connection opening into the cylinder chamber and lead to the working stroke of the piston.
The exhaust stroke is then effected as the last stroke of this cycle.
Both combustion chambers are continuously successively involved in this.
operating sequence
CONCLUSION
In this technological world we need the systems which will deliver high power.
We develop the existing systems to maximum efficiency.
In this way we step forward to improve the power of diesel engine.
So as MECHANICAL engineer using our efforts to maximize the power of the ic engines.