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Efficiency of External Gear Pump
Proceedings of Higher Educational Institutions. Маchine Building, 2021The purpose of the research was to analyze the load characteristics of external gear pumps. As the initial data, the results of factory tests of the NMSH and SH pumps, provided by HMS Livgidromash JSC, were used. The load characteristics of the gear pump NMSH32-10 were constructed, and the dependence of this pump efficiency on the dimensionless ...
N.L. Velikanov, V.A. Naumov
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A Design Procedure for Multistage External Gear Pumps
BATH/ASME 2020 Symposium on Fluid Power and Motion Control, 2020Abstract In this work, the authors present a robust and integrated procedure for the design of multi-stage gear pumps to be used in dry sump system applications. Based on the target delivery flow rate, rotational speed and fluid properties, the developed iterative method enables to directly obtain the geometrical features and the working
Guerra D. +5 more
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Formulation and optimization of involute spur gear in external gear pump
Mechanism and Machine Theory, 2017Abstract External gear pumps (EGPs) have gained popularity among applications in many fields like fluid power transmissions and systems, automotive, aerospace thanks to their advantage of simplicity, robustness and low cost. Several studies were performed to analyze and innovate the gear profiles of EGPs to achieve better performance, in terms of ...
Xinran Zhao, Andrea Vacca
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Modeling Run in Process in External Gear Pumps
Volume 3: Dynamic Systems and Controls, Symposium on Design and Analysis of Advanced Structures, and Tribology, 2006In this work, the authors have developed a mathematical model that simulates the run in of external gear pumps, as an useful tool in the optimization of this time-consuming process. The model calculates the wear profile of the case by enveloping the tip circle of the gears concerning all the run in steps.
DALPIAZ, Giorgio +3 more
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International Journal of Machine Tool Design and Research, 1982
Abstract Gear turning, i.e. gear skiving for internal gears and gear generating for external gears, is a new high productive method to produce both internal and external, spur and helical gears and cylindrical worms using a rotating tool. The gear turning cutter is a pinion-type shaper.
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Abstract Gear turning, i.e. gear skiving for internal gears and gear generating for external gears, is a new high productive method to produce both internal and external, spur and helical gears and cylindrical worms using a rotating tool. The gear turning cutter is a pinion-type shaper.
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Analysis of External Gear Pump Failure
Advanced Materials Research, 2013Several typical failures of external gear pump are presented. The reasons of the pump failure are analyzed in detail. Solutions of the failure are proposed. In order to improve the efficiency of pumps maintenance and reparation, a new kind of tool is mentioned which could predict the life of gear pump before failure occurred.
Wen Guang Zhang +3 more
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External Gear Pump Model and Simulation
Applied Mechanics and Materials, 2011This paper describes the development of gear pumps and the main causes of noise,and establish the overall dynamic model of external gear pump,mainly including the trapped oil model,the gear mesh model and the shell model and then go on with simulation analysis and research.Through establishment the gear pump model,it is benefit for predicting the gear ...
Hui Wang, Sha Sha Du
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Influence of Gear Tooth Geometry on Tooth Stress of External and Internal Gears
Journal of Mechanical Design, 1990Type and geometry of the cutter influence the generated fillet in a gear tooth. Thus optimization of the cutter dimensions is an important step in minimizing gear stress. Gear tooth geometry of external and internal involute gears can be described by the same equations, if we apply the following rule: The number of teeth is positive in external gears ...
H. von Eiff +2 more
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