Patent ID: 9377019
Filing Date: 2016-06-28
CPC Classification: F04B

Claim Text:
1. A plunger pump fluid end housing with multiple fluid chambers arranged in a longitudinal plane, each fluid chamber comprising: an access bore; a discharge bore; a suction bore; a plunger bore; wherein a first plunger bore of a first fluid chamber is disposed on a first axis corresponding to a first centerline plunger axis of said housing; a second plunger bore of a second fluid chamber is disposed on a second axis corresponding to a second centerline plunger axis parallel to said first centerline plunger axis and spaced from said first axis by a first predetermined distance thereby defining the second plunger bore spacing; and a third plunger bore of a third fluid chamber is disposed on a third axis corresponding to a third centerline plunger axis of said housing, said third axis being parallel to said first axis and spaced from said first axis by a second predetermined distance thereby defining the third plunger bore spacing; wherein said longitudinal plane is defined by the first, second, and third axes of the plunger bores of the multiple fluid chambers; wherein each of said respective first, second and third access bores, comprise elongated cylindrical sections and wherein said elongated sections are elongated in a direction perpendicular to a plane formed by the axes of said respective first, second and third access bores, discharge bores, and suction bores; wherein the respective access bores, discharge bores, and suction bores of said second and third fluid chambers are each are offset longitudinally away from the respective plunger bore in a direction perpendicular to a plane formed by the axes of said access bore, discharge bore, and suction bore; wherein said offset of said respective discharge, suction, and access bores of said second and third fluid chambers are offset in a direction away from the outside boundaries of said fluid end housing, and wherein the respective offsets of the discharge, suction, and access bores of said second and third fluid chambers are opposite.