论文部分内容阅读
涡线式压缩机的原理已见于1905年的美国专利。1974年美国ADL公司提出了适用于氦压缩机的报告。1983年日本日立公司开发了2.2～4.5kW用于空调的全封闭涡线式压缩机。涡线式压缩机之所以在相隔七○年的期间内不能推广的原因是高精度的涡线不易制造,经久耐用的驱动机构无法得到。同活塞式及旋转活塞式相比,涡线式的特点是扭矩变化小,不需要吸入阀和排气阀,滑动速度低,压缩空间气体泄漏少和部件少。本文介绍了压缩零部件的结构和特点,说明了
The principle of a scroll compressor has been found in the 1905 U.S. patent. In 1974 the United States ADL company made a report suitable for helium compressors. In 1983, Hitachi Ltd. of Japan developed 2.2 ~ 4.5kW fully enclosed scroll compressor for air conditioners. The reason why a scroll compressor can not be extended within a period of 70 years is that the high-precision scroll is not easy to manufacture and the long-lasting drive mechanism is not available. Compared with piston and rotary piston type, the vortex type features small torque variation, no suction valve and exhaust valve, low sliding speed, less gas leakage in the compression space and fewer parts. This article describes the structure and characteristics of compressed parts, explained