Fracturing pump assembly

Abstract

An improved fracturing pump is provided. The pump is reconfigurable on site. The pump uses a bull gear/pinion drive arrangement that increases reliability and efficiency. Internal components of the pump may be varied to meet the requirements of a specific operation. The reconfiguration gives the user the ability to increase or decrease the horsepower of the pump. A closed loop oil feed system provides constant and reliable lubrication even under heavy loads. The sealing system is enhanced to reduce leaks and thermal stresses. The pump also has an improved frame and chassis to reduce NVH and enhance reliability.

I claim: 
     
         1 . A fracturing pump assembly comprising: a frame having a plurality of bores formed therethrough; and a plurality of crossheads disposed in the plurality of bores, respectively, and adapted to reciprocate therein;
 a crankshaft for imparting motive power to a plunger, said plunger situated in the fluid handling end of the pump and connected to a piston, whereby rotation of said crankshaft causes reciprocating movement of said plunger which causes fluid to be expelled from the fluid handling end of the pump, and where said crankshaft is coupled to said piston via a bull gear/pinion drive arrangement.   
     
     
         2 . The assembly of  claim 1  wherein said plunger may be varied in size for a variable power output.