Scroll compressor
A scroll compressor (also scroll compressor) (English scroll " worm gear " ) is a machine that compressed gases. It consists of two nested spirals whose opposite movement compresses the gas. The scroll compressor was invented in 1905 by Léon Creux.
Operation
A scroll compressor operates according to the displacement. It consists of two nested spirals, one of which is stationary and the other is moved by an eccentric drive along a circular path. Here, the spirals touch several times and form within the windings of several constantly shrinking chambers. This causes the gas to be pumped outside is sucked in, compressed inside the pump and discharged through a port in the spiral center.
To very high pressures - such as for chillers or heat pumps - to achieve, multiple spiral pairs can be arranged on the same shaft one after the other, so that multiply the individual compression ratios. Since the spiral couples do not rub against each other, such compressors can operate completely oil-free.
Application
Scroll compressors are as
- Compressors for air conditioning,
- Heat pumps and
- Vacuum pump ( scroll pump ) are used.
In addition, they have been in the automotive field as
- G- loader installed in some Volkswagen engines.
A further development of the G- loader is the
- Handtmannspirallader. In contrast to the G-Lader the displacement of the supercharger is a place - zweispiralig executed. This is to reduce manufacturing costs through simplified processing. The Handtmannspirallader can at a low power requirement of the combustion engine to reduce mechanical losses, to be switched off. If more power is needed, the charger will switch to using the clutch.
2 with the spiral structure, the air is further promoted.
3 highly compressed air is delivered into the engine compartment.