Hydraulic piston pump with reduced restriction barrel passage
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United States of America Patent
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Oct 6, 2015
Grant Date -
Feb 27, 2014
app pub date -
Nov 5, 2013
filing date -
Apr 28, 2011
priority date (Note) -
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Abstract
The present disclosure sets forth an axial piston pump barrel. The axial piston pump barrel is provided with cylinders, antechambers, and fluid flow apertures which are uniquely shaped and dimensioned so as to increase the overall flowability and expulsion rate of a piston pump. By providing curvilinear transition zones and fluid flow apertures, the cylinders can be completely filled and pressurized even at the extremely high pressures and RPMs required by modem machines. Such machines may include front-end loaders, excavators, pipe layers, graders, and the like wherein such pumps can be used to power hydraulic cylinders moving the implements, work arms and other tools associated with such machines.
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