Identification of the optimal geometrical parameters of the trochoidal gearing at the IC engines lubricating pumps

Abstract

The paper presents the theoretical model of the gearing generating with modified trochoidal profile which is applied at the IC engines lubricating pumps. Methodology for selection of the optimal shape of trochoidal gear tooth profile is considered at the lubricating pumps. Farther, it shows how it is possibly to describe equidistant of the peritrochoidal profile in parameter form. The profile in contact is the equidistant of the conjugate external envelope. The procedure of identification of the optimal geometrical parameters of the trochoidal gearing at the actual 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. Based on theoretical considerations, physical models of gears were made and simulation experiment performed, with the results of the analysis of the functional characteristics of the pump and described methodology were entirely verified.