A Scroll Compressor with Sealing Means and Low Pressure Side Shell

Abstract

A scroll machine has not been attempted manufacturing for long years because of the difficulties in productivity,in spite of the advantageous characteristics. But in recent years,productive techniques have remarkably developed,and several manufacturers have been paying their attentions to a scroll machine.A few of them have already commercialized. Authors also remarked a scroll machine for refrigerant equipment,and have accomplished manufacturing engineering of a scroll machine as a hermetic compressor for mediwn capacity :range air conditioners.The scroll compressor was designed to achieve axial and radial sealing by simple means,and cool down the motor by suction gas. Therefore,it is possible to attain high efficiency and high reliability under wide range of compression ratio. And the scroll compressor is suitable for the application to heat pump air conditioners for these reasons. INTRODUCTION After Energy Crisis,energy conservation has been the most emphasized topics for air conditioners. In Japan,the regulation of the efficiency started in 1979, in the range of over 3Kw. Besides the legal demand,air conditioners with higher efficiency have been required from the distributors to meet the customer's needs concerning energy saving. These requirements remains even in the latest few years,although there seems to be sufficient oil supply.