Abstract
This paper presents the modifications that have been made to the sickle insert of the gear pump with internal gearing. This procedure allowed the obtainment of radial compensation. The test stand to plot the characteristics of the pump before, as well as after the first and second modification is discussed. The results of the measurements from the tests conducted are presented. The results obtained confirmed the achievement of radial compensation by cutting the appropriate channel in the sickle insert. As a result, it will be possible to obtain a higher discharge pressure for this type of pump and to increase its efficiency.
Highlights
The pump is the main elementary component of the hydraulic system
This paper presents the modifications that have been made to the sickle insert of the gear pump with internal gearing
Summary and conclusions The current trend in the construction of hydraulic drive systems imposes the use of higher operating pressures
Summary
The pump is the main elementary component of the hydraulic system. Its operation is based on the conversion of external mechanical energy (for example, obtained from an electric or combustion engine) into hydraulic energy accumulated in the liquid. The above requirements are generally met by gear pumps They can be used in hydrostatic drives, and as metering elements for viscous liquids found in the automotive, chemical, food and pharmaceutical industries. It is a contractual and constantly evolving, that microhydraulic elements are those in which the nominal flow is below 50 cm3 / s (3 dm3 / min) or the nominal size is WN
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