Why Audi A6 Car in market ?

The new A6 car is more lighter has more power transmission and also comes with lots of technology than the car it replaces earlier. This car is the first official audi car in india since many years launched in 2005. The first audi comes with 3.0 petrol and diesel motors followed but after in 2007 it has 3.2 litre direct injection petrol which increases the power generation but not the sales or production of the car .Then after 2 years , in 2009 with a minor change along with good super charged petrol and upgraded diesel engine.
The success of new A6 model is vital for audi's future in indian car industry. The audi A6 has beautiful LED headlamps, tightly cropped grille, the large inlets give unique feature and looks by dimensionally this car is little longer wheelbase and is little wider then its previous model. Doors, bonnets , boot lids are made up of light aluminum and comes with four wheel drive for good pickup and for good performance.

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Common Rail Type Fuel Injection System

Electronic control common rail type fuel injection system drives an integrated fuel pump at an ultrahigh pressure to distribute fuel to each injector per cylinder through a common rail. This enables optimum combustion to generate big horsepower, and reduce PM* (diesel plume) and fuel consumption. Bosch will supply the complete common-rail injection system for the high-performance 12-cylinder engine introduced by Peugeot Sport for its latest racing car. The system comprises high-pressure pumps, a fuel rail shared by all cylinders (i.e. a common rail), piezo in-line injectors, and the central control unit which compiles and processes all relevant sensor data.

Turbocharger

A turbocharger is actually a type of supercharger. Originally, the turbocharger was called a "turbo super charger." Obviously, the name was shortened out of convenience. A turbocharger’s purpose is to compress the oxygen entering a car’s engine, increasing the amount of oxygen that enters and thereby increasing the power output. Unlike the belt-driven supercharger that is normally thought of when one hears the word "supercharger," the turbocharger is powered by the car’s own exhaust gases. In other words, a turbocharger takes a by-product of the engine that would otherwise be useless, and uses it to increase the car’s horsepower. Cars without a turbocharger or supercharger are called normally aspirated . Normally aspirated cars draw air into the engine through an air filter; the air then passes through a meter, which monitors and regulates the amount of air that enters the system. The air is then delivered to the engine’s comb...

Different types of Casting Process

1) Investment casting 2) Permanent mold casting 3) Centrifugal casting 4) Continuous casting 5) Sand casting Investment casting Investment casting (known as lost-wax casting in art) is a process that has been practiced for thousands of years, with lost wax process being one of the oldest known metal forming techniques. From 5000 years ago, when bees wax formed the pattern, to today’s high technology waxes, refractory materials and specialist alloys, the castings ensure high quality components are produced with the key benefits of accuracy, repeatability, versatility and integrity. Investment casting derives its name from the fact that the pattern is invested, or surrounded, with a refractory material. The wax patterns require extreme care for they are not strong enough to withstand forces encountered during the mold making. One advantage of investment casting it that the wax can be reused. The process is suitable for repeatable ...

Royal Mechanical Engineering

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