A Gas Compressor Using Magnetic Fluid (3rd Report, Characteristics of a New Apparatus Driven by Rotating Paired Permanent Magnets)

摘要

In the first report of this series~(1), we proposed a non mechanical gas compressor using magnetic fluid (MF) and a linear motor. And then, its feasiblity was confirmed by a simplified test using two kinds of apparatus, i.e., a straight-channel-type compressor driven with a series of belt-driven paired permanent magnets~(1), and a spiral channel type compressor with a unique linear motor called "electromagnetic motor"(2). However, the discharge pressure obtained in these compressors was not enough. In this study, in order to increase the discharge pressure and to know the precise perfor- mance, a new apparatus having a spiral channel and a rotating paired permanent magnets has been developed and tested. Results of this test together with comparisons with calculations by a simplified one-dimensional model are presented in this paper.