Methodology for selection of the optimal trochoidal gear tooth profile at the lubricating pumps

Abstract

Methodology for selection of the optimal trochoidal gear tooth profile at rotary (gerotor) pumps is considered in this work. The procedure of identification of the optimal geometrical parameters of the trochoidal gearing at the actual IC engines lubricating pump is also given in the paper. Described methodology is illustrated on the example of the actual pump and obtained solution is proposed as optimal for given conditions. The profile in contact by the theoretical model of the gearing is the equidistant of the conjugate external envelope. Based on theoretical considerations, physical models of gears were made and simulation experiment performed, wherewith the results of the analysis of the functional characteristics of the pump and described methodology were entirely verified.