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1. Are there any experiences/references about the durability of the ASA Supercharger?

As it is generally valid, the durability is affected by the treatment and mechanical load. It is necessary to differentiate between quasistatic loads with low speed changes and applications with dynamic loads. In numerous applications on dynamometers, as well as tough racing/motorsports conditions, our technology has proven to be able to stand the relevant demands. The utilization in diverse OEM projects further testifies the durability.

2. How can the ASA Supercharger be driven?

The point of intersection is the input shaft of the supercharger, as can be seen on the data sheet „supercharger drive“. We recommend a belt-drive with PK-profile in order to dampen vibrations and compensate the position and angle faults. Other drivetrains are possible as well, of course.

3. Does the ASA Supercharger need a separate oil supply?

Yes. If the supercharger is being used on combustion engines, the oil supply of the supercharger will be realised by a bypass circuit from the engine.

4. How does the ASA Supercharger react to large angular accelerations in the drivetrain and rotary oscillations?

The drivetrain of the ASA Supercharger needs to be examined for these parameters, because these can lead to oscillations of the supercharger components. This can result in damages. The appearing accelerations, resulting from the engine’s rotational irregularities, external influences, gear changes and or switching of the supercharger, need to be known.

5. How do I find the right supercharger for my case of application?

By inscribing the working characteristics into the supercharger mapping, you can determine a first evaluation. However, due to a host of parameters influencing the result, in the end only a practical trial can lead to firm criteria. 

6. Is it possible to have an own supercharger built for my case of application?

In cooperation with our customers, ASA develops perfectly bespoke devices for customer applications. A good example for this is the ASA Pimax, which realizes single-tier pressure ratios of 1:4 in a dynamometer application.

7. Can the ASA Supercharger work as a secondary supercharger stage in an in-line air-flow arrangement?

The appearing loads are high in this case. For this task, there are various successful projects where this has been implemented successfully. Here, pressure ratios of Pi = 1:7 have been implemented successfully.

8. Can the air mass be adjusted with throttles in the suction and/ or pressure line?

All ASA Superchargers are constructionally able to be throttled in the suction line. The throttling of the pressure line leads to the pumping of the supercharger after leaving the stable area of operation. This is systematic for all centrifugal superchargers and has to be avoided by control technology in order to not damage the supercharger.

9. Which levels of efficiency can be achieved?

Centrifugal superchargers have functionally high maximum levels of efficiency of up to 85% isentropic. In combination with the ASA gearings, the results are vast levels of system efficiency which have a positive effect on the energy budget of the overall construction.