Patent ID: 8662864
Filing Date: 2014-03-04
Classification: F04B

Abstract:
1. A fluid end for a multiple reciprocating pump assembly, the fluid end comprising: at least three cylinder chambers; at least three respective plunger bores in fluid communication with the cylinder chambers, each plunger bore for receiving a reciprocating plunger, each plunger bore having a plunger bore axis, the plunger bores being arranged across the fluid end to define a central plunger bore and lateral plunger bores located on either side of the central plunger bore; at least three respective suction valve bores in fluid communication with the cylinder chambers, each suction valve bore for receiving a suction valve and having a suction valve bore axis; and at least three respective discharge valve bores in fluid communication with the cylinder chambers, each discharge valve bore for receiving a discharge valve and having a discharge valve bore axis; wherein each of the plunger bores, the suction valve bores, and the discharge valve bores intersects with its respective cylinder chamber; and wherein at least one of the axes of at least one of the suction and discharge valve bores for at least one of the lateral plunger bores is inwardly offset from its respective plunger bore axis within its respective cylinder chamber.