Automobile air conditioning

Toyota has developed a super lightweight external variable displacement compressor for automobile air conditioning, which helps conserve energy and resources and reduces CO 2 emissions. Conventionally, fixed displacement compressors were installed in compact cars. In order to reduce the weight of the compressor and increase its efficiency, Toyota successfully developed the 5SEO9 compact and lightweight external variable displacement compressor, using HFC-134a. According to Toyota , this compressor is 25% lighter, makes it possible to reduce fuel consumption by 60% and allows a 30% faster acceleration. Source: Valeo has developed an environmentally-friendly air-conditioning system that meets future EU regulations. These regulations, currently in the finalization stages, could lead to a ban on the use of the HFC-134a in 2011 in new passenger car models and in 2017 in all new vehicles sold in Europe . The Valeo R-744 system is based on CO 2, a refrigerant with negligible Global Warming Potential, thus, minimizing the direct impact of air-conditioning systems on global warming due to refrigerant leakage. Valeo CEO, Thierry Morin, expects to market these systems in 2009. Source: