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Turbo`s & Intercoolers

Turbo Diesel
Major manufacturers started mass producing Turbo Diesel cars in the UK
market around 1990, demands for diesel were increasing for about 5 years
previous and more performance was sought after, hence introduction of the turbo
for diesel engined cars, though Turbo diesels on trucks have been around for
many, many years. The Turbo Charger in itself is a simple but amazing piece of technology,
using the flow of exhaust gases to power and turn a turbine which is linked via
a spindle to an impeller on the air intake side coming from the air filter, the
filtered air is then forced (Charged) into the inlet manifold in turn allows a
larger amount of air to be entered into the cylinders. The power increase
developed with the aid of a Turbo Charger is quite considerable even though
diesels use low boost pressures.
wastegate: Most
automotive turbochargers have a wastegate, which allows the use of a smaller
turbocharger to reduce lag while preventing it from spinning too quickly at high
engine speeds. The wastegate is a valve that allows the exhaust to bypass the
turbine blades. The wastegate senses the boost pressure. If the pressure gets
too high, it could be an indicator that the turbine is spinning too quickly, so
the wastegate bypasses some of the exhaust around the turbine blades, allowing
the blades to slow down.

Intercoolers
A problem with turbo charging is that the charged air developed from Turbo
makes the oxygen content in the air is lowered from the heat developed from the
turbo charger itself, colder air has a higher level of oxygen than hot air. any
type of Fuel requires oxygen to burn, highering the oxygen levels improves
combustion. Intercoolers are fitted to get back the oxygen content in the
charged air by cooling the air down again before the charged air is let into the
inlet manifold, Intercoolers are a type of radiator similar to a car radiator,
situated where cold air can be passed through to cool the charged air inside it
when the car is moving, and is fitted in line between turbo and inlet manifold.

Email
Intercooled@Turbo-Diesel.co.uk
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