New Energy-Efficient Electromagnetic Clutch for Automotive Air Conditioning Compressors

Even if the air conditioning is switched off, the internal combustion engine in today’s cars continues to drive the common compressor. To avoid resulting power losses, the automotive industry aspires to apply electromagnetic clutches. When the air conditioning is used, however, CO2-emission increases significantly because the electromagnetic coil consumes electricity. The CO2-reduction per year is consequently very low, which is why new compressor clutches were developed that do not require a permanent electric power supply. Additionally, these clutches are characterized by low production costs, a simple functional principle and a small package.