Characteristics of Involute Profile Shifted Gear Pump

Abstract

In this paper the formulas for calculating the closed quantity, the delivered quantity and their fluctuation of the optional involute gear pump were obtained. And then, the method of designing the involute profile shifted gear which may avoid the evil influence of closing, and its some characteristics were explained. Especially, the author offered that it is desirable for such a gear pump to make the number of gear teeth differed by one tooth.