关键词: 离心喷嘴;燃料喷射;理论研究

Abstract: he theory of maximum flow rate of centrifugal injectors is proved and existentialboundary conditions of the centrifugal injectors also is analyzed. The results show that when theinjection pressure drop equals to 1. 5 times as higher as average pressure drOP in the critical section,the operating condition Of centrifugal injectors is critical or extracritical.Gives formulas to calculatethe velocity and frequency of wave,propagating along the free surface of liquid in the injector’svortex.It is observed that propagation velocity and frequency of waves are determined by injectionpressure drop and geometric characteristic of the centrifugal injectors.

Key words: Centrifugal injector;Fuel injection;Theoretical research