Manufacturing Analysis of High-Pressure Gear Pumps: A Case Study from Serbia

A decisive impact on the cost-effectiveness of any production is an integrated approach to product development. Constructors/designers, for this reason, strive to make the chosen solution so designed that it requires a minimum of material and time for its development. However, in product design, functional properties are what the designer must give priority to. As gear pump are of fixed working volumes, the most frequently used drive device of hydraulic systems, the manufacturability of their production will be analysed. The production of gear pumps, today, can be considered a real example of meeting the requirements of the circular economy. Gear pumps with involute external gearing have been produced very successfully for more than 70 years in the company PPT-Hidraulika (Trstenik - Serbia). The paper analyses the influence of the size of the pump specific flow of on the weight ratios (consumption of raw/starting material and weight of the finished pump). It should point out possible savings in raw (starting) material, for their production, and suggestions for possible design improvements and immediate production.