Importance

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Abstract

A reciprocating pump housing having a suction valve bore, a discharge valve bore, a plunger bore and an access bore. The suction and discharge bores are disposed on a first centerline and the plunger and access bores are disposed along a second centerline perpendicular to the first centerline. The pump housing includes a first annular transition zone extending between an intersection of the plunger bore and suction bore and an intersection of the access bore and the discharge valve bore. The housing also includes a second annular transition zone extending between an intersection of the suction valve bore and access bore and an intersection of the plunger bore and discharge valve bore. The first and second transition zones intersect along a third centerline perpendicular to the intersection of first and second centerlines, each including a curvature along their lengths to blend the intersections between the bores and reduce tensile stresses.

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First Claim