Swing Compressor

Thanks to its smooth rotation, the swing compressor decreases friction and vibration. It also prevents the leakage of refrigerant gas during compression. These advantages provide quiet and efficient operation.

The swing compressor can reduce operational vibration and sound because its piston moves smoothly inside the compressor.

This marked the development of a high-performance swing compressor that was compatible with alternative fluorocarbons. The prize was presented in 1997.

Reluctance DC Motor for Compressor

Daikin DC Inverter models are equipped with the Reluctance DC motor for compressor. The Reluctance DC motor uses 2 different types of torque, neodymium magnet*¹ and reluctance torque*². This motor can save energy because it generates more power with a smaller electric power than an AC or conventional DC motor. It is more efficient at the low frequencies most commonly used by air conditioners,*³ improving efficiency by approximately 20%.

This was the first scroll compressor to be equipped with the Reluctance DC motor in commercial-use air conditioners. The Institute of Electrical Engineers of Japan presented the award in 1998.

*¹. A neodymium magnet is approximately 10 times stronger than a standard ferrite magnet.
*². The torque created by the change in power between the iron and magnet parts.
*³. The frequency range used by air conditioners during periods of stable operation. This is the range in which air conditioners operate for the longest periods.
*⁴. Data are based on studies conducted under controlled conditions at a Daikin laboratory.

PAM control

Pulse Amplitude Modulation (PAM) control reduces energy loss by controlling how often the converter switches on and off.