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Turbo ULTRAcoolingTM
Turbo ULTRAcooling by American Aviation is a customized refinement of the basic intercooling
concept, resulting in better climb rates, and increased air speeds. ULTRAcooling reduces the
super heated engine inlet air temperature produced by an aircraft turbocharger and restores
the horsepower you loose under hot day or high density altitude conditions. All aircraft
engineers will agree that cooler air is easier on your engines. Plus, faster acceleration,
shorter accelerate/stop distances and improved single engine performance greatly enhance safety margins.How Turbocharging Works
The turbocharger unit is a simple mechanical device, interposed between the air intake and fuel injection servo. Exhaust gasses are routed over an impeller on one side of the turbocharger device, which drives the compressing rotor on the other side. The result is intake air compressed to a much higher pressure than ambient air at altitude. In effect, a turbocharger produces sea level air pressures, and above, at altitudes where the outside air pressure has diminished.
An undesirable by-product of air compression is excessive heat. Even though the outside air temperature may be below 0°F, the air compressed by the turbocharger can get as hot as 360°F. This super heated air contains fewer oxygen molecules than cold air, causing much of the efficiency (power) of the turbocharging process to be lost.
In World War II, superchargers assisted such aircraft as the B-24, B-17, P-47, and P-51 in performing their missions at altitude.
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How Basic Intercooling Works
During WWII, many aircraft were equipped with basic intercoolers as an integral component of the turbocharging (or supercharging) system. The intercooler brought the compressed air temperature down and restored the engine's power and efficiency. In other words, when an intercooler was added to a turbocharger, the engine was able to better maintain its rated horsepower.
The basic intercooler was a simple mechanical device. The heart of the unit was an air cooled heat exchanger similar to the radiator in most automobiles. The heat exchanger was connected through a series of ducts between the turbocharger outlet and the air intake to the fuel injection servo or pressure carburetor. As the heated (up to 360°F) compressed air exited the turbocharger, it was directed through the interior core of the heat exchanger, and cooled by the ambient air passing around the external fins.
How ULTRAcooling Works
Like the basic intercooler, the ULTRAcooling System relies on an air-to-air heat exchanger. However, the ULTRAcooling System takes full advantage of modern day computer aided design technology resulting in a custom manufactured, highly efficient heat exchanger. Also, with the help of CAD/CAM Technology, induction manifolding is expertly designed to maximize flow efficiency. Correctly designed NACA ducting supplies high pressure cooling air to the ULTRAcooler core at all power settings and flight conditions, resulting in constant temperatures and power at all altitudes.
Up to this point, our discussion of ULTRAcooling has been concerned with improved performance at higher altitudes. However, the benefits of ULTRAcooling extend throughout the entire spectrum of aircraft performance. ULTRAcooling Systems dramatically improve such critical criteria as hotter than standard day operation, engine temperatures, fuel efficiency, range and speeds.
To Sum Up
Years ago a WWII intercooler in combination with its companion turbocharger attempted to maintain engine horsepower. Today, using modern technology, ULTRAcooling, the ultimate refinement of induction air cooling, allows the engine to perform at the maximum design parameters established by the engine manufacturer. Enabling operation at all altitudes and temperatures, not just sea level under standard day conditions.