The Mathematical Model of Rolling Piston Compressor and Its Application

This paper presents a new JDtthematieal model of indicated horsepower of rolling piston compressor. It is not an intergul formula but a genertl mathematical formula made out by authors calculating ia detail on the baee of former integral formula of indicated hor1epower aad parameters such as the ratio of Ieath aad diameter, the ratio of eccentric from implicit function. Ia accordance with this mathematical model. the paper giYes out a series of figures which are about the relationship between parameters and the indicated horsepower of a rolling piston compressor. then designing, one can determine the parameters of compreuor according to these figures. So this paper ie a useful reference information for engineers and techuiciane who design rolling piatoa compre•sor. Key •ords: compreuor, rolling piston machine NOMENCLATURE e ___ eccentric f&lue of rolling piston L _ length of cylinder ; m _ ezponent of compressor process ; Pd _ diaeharge pressure of compreuor Ps _ suction pressure of eompreseor radius of rolling piston R _ radius of cylinder ; V folnme of suction ; Ji ___ indicated horaepower of compre•tor B _ ugh of beginning compreuioo ; B 1_ angle of compression end ; Y _ angle of position of discharging end ' _eccentricity of rolling piston: ~ ratio of length to radius ; 'I' _ angle of rolling piston rotating.