Patent ID: 6382940
Filing Date: 2002-05-07
Classification: F04B

Abstract:
A Y-block plunger pump housing comprising:a suction valve bore having a substantially circular cross-section and a first centerline; a discharge valve bore intersecting said suction valve bore, said discharge valve bore having a substantially circular cross-section and a second centerline, said first centerline being coplanar with and intersecting said second centerline, said first and second centerlines subtending a first obtuse angle; and a cylinder bore intersecting said suction valve bore and said discharge valve bore, said cylinder bore having a proximal packing area and a distal transition area, said packing area having a substantially circular cross-section and a third centerline, said third centerline being coplanar with and intersecting said first and second centerlines to allow substantially unimpeded fluid flow from said suction bore to said discharge bore under the influence of reciprocating plunger movement in said cylinder bore, said second and third centerlines subtending a second obtuse angle, and said first and third centerlines subtending a third obtuse angle; wherein said transition area has a distal elongated cross-section substantially perpendicular to said third centerline and with a long axis substantially perpendicular to said plane of said first and second centerlines.