A new conceptual three-dimensional compression mechanism (3D scroll) is developed. High efficiency, high reliability and small size are realized by adding an axial compression to the conventional radial compression. Since the 3D scroll has steps, the key point of efficiency improvement in the 3D scroll is to minimize the gas leakage in the steps. Through cylinder pressure measurements and visualization tests, clearances in the steps were optimized and the gas leakage was reduced. The developed 3D scroll compressor for commercial air-conditioner archived 35% smaller size, 26% lighter weight and 5.5% improvement of efficiency compared with the conventional one.
展开▼
