Research on the Discharge Port of Scroll Oil Pump

The working characteristic of scroll oil pump and the propeny of medium oil are described in this paper, the leakage of oil IS analysed, and the mathemaucal model is set up for scroll o1l pump. The effects of the discharge port on the pressure of the working pocket, the oil d1splaccment and the requ1red power are obtained according to the results of calculation and e>;periment. The optimal design criteria of the discharge pon are presented. INTRODUCTION The oil pump is universal machine which 1s widely used in every area, such as m petrochemical industry. transportation lield and so on. The energy consumption of the oil pump accounts a large proporuon in overall value and the ratio is mereasinc year by year. Under the energy shortage situation, 11 is a main research territory to enhance the pump efficiency. One of the indusrry pollutions is nOJse, which has a serious influence on the daily life and work environment, so the demand for low noise pump becomes more and more strong as time went on_ The pump used in the hydraulic pressure system should have the cood stability, rhe nuctuations of the now and pressure are both little. The reliability target is of great importance for the pump used in chemical process. In order to satisfy the needs of efficiency. no1se, fluctuation. reliability and others, a new type pump-scroll oil pump IS developed. Since the early days of 80's, the scroll compressor used for air-conditioner has been put into commercial production, it has a lot of special features. such as high efficiency, low noise and vibration, smooth operation, high reliability. These QUalities have shown the inherent advantace of scrllll machinery, and the scope of its application is extended continuously, it is not only used as refrigerating compressor, but also used as air compressor and vacuum pump. Scroll oil pump is a new field of application of this technique. The basic research 1S o::arried out, the prototype which scroll profile is a series of semi-circles has been developed in our laboratory, the operating datahavc shown that the prototype performance is suprior to the reeiproo::ating or centrifugal pump's in some respects.