Long stroke parallel pump

Abstract

Various embodiments disclosed relate to a reciprocating triplex pump. The present disclosure includes a reciprocating triplex pump with a longer stroke time. Such a pump can include a prime mover with a shaft extending longitudinally; a gear box arranged longitudinally along the shaft, the gear box for actuating the prime mover; and a slider-crank mechanism laterally offset from the gear box. The slider-crank mechanism can include a rotating member assembly, a sliding member assembly, and a connecting rod assembly.

1 - 20 . (canceled) 
     
     
         21 . A fluid pump system comprising:
 a prime mover with a shaft extending along a longitudinal axis and supplying rotation about the longitudinal axis at a speed;   a gear system operably coupled to the shaft for changing the orientation of the rotation supplied by the drive shaft; and   a slider-crank mechanism, comprising:
 a rotating member assembly mechanically coupled to the gear system, the rotating member assembly comprising a plurality of rotating members having a rotational axis generally orthogonal to the longitudinal axis, 
 a sliding member assembly mechanically coupled to the rotating member assembly, wherein the rotating member assembly is configured to drive reciprocating motion of the sliding member to alternately draw fluid in and discharge fluid; and 
 a connecting rod assembly mechanically coupling the rotating member assembly to the sliding member assembly. 
   
     
     
         22 . The system of  claim 21 , wherein the plurality of rotating members comprises a first rotating member, a second rotating member, and a third rotating member. 
     
     
         23 . The system of  claim 22 , wherein each of the first rotating member, the second rotating member, and the third rotating member having a flat surface oriented horizontally relative the gear system. 
     
     
         24 . The system of  claim 22 , wherein the first rotating member, the second rotating member, and the third rotating member each comprise bull gears. 
     
     
         25 . The system of  claim 22 , wherein the first rotating member, the second rotating member, and the third rotating member have a gear ratio of 1:1:1. 
     
     
         26 . The system of  claim 22 , wherein the rotating member assembly is actuatable at a singular speed across the first rotating member, the second rotating member, and the third rotating member. 
     
     
         27 . The system of  claim 21 , wherein a stroke length corresponds to a width of the respective rotating members of the rotating member assembly. 
     
     
         28 . The system of  claim 22 , wherein the sliding member assembly comprises a first sliding member, a second sliding member, and a third sliding member, each of the first sliding member, the second sliding member, and the third sliding member parallel each other. 
     
     
         29 . The system of  claim 28 , wherein the connecting rod assembly comprises a first connecting rod coupling the first rotating member to the first sliding member, a second connecting rod coupling the second rotating member to the second sliding member, and a third connecting rod coupling the third rotating member to the third sliding member. 
     
     
         30 . The system of  claim 21 , wherein the prime mover comprises an electric motor or a reciprocating engine. 
     
     
         31 . The system of  claim 21 , further comprising a cylinder assembly mechanically coupled and sealed to the sliding member assembly, wherein the rotating member assembly is configured to drive the cylinder assembly via the sliding member assembly. 
     
     
         32 . The system of  claim 21 , further comprising a valve assembly mechanically coupled to the cylinder assembly, wherein the rotating member assembly is configured to drive the valve assembly. 
     
     
         33 . The system of  claim 32 , further comprising a suction and discharge manifold coupled to the valve assembly. 
     
     
         34 . The system of  claim 22 , wherein a stroke length corresponds to sizes of the first rotating member, the second rotating member, and the third rotating member. 
     
     
         35 . The system of  claim 22 , wherein the first rotating member, the second rotating member, and the third rotating member each comprise teeth for engagement of the other gears. 
     
     
         36 . The system of  claim 21 , further comprising a dual shaft extension, a second gear box, and a second slider-crank mechanism, the second gear box coupled to the prime mover. 
     
     
         37 . A method of pumping fluid comprising:
 producing rotational movement at a primer mover;   delivering the rotational movement with a shaft rotating about a longitudinal axis;   at a gear system, reorienting the rotational movement;   driving a plurality of bull gears with the gear system, the bull gears rotating about an axis orthogonal to the longitudinal axis;   producing linear movement in a plurality of sliding members each coupled to one of the plurality of bull gears via a connecting rod; and   drawing in and discharging the fluid with the linear movement.   
     
     
         38 . The method of  claim 37 , wherein driving a plurality of bull gears comprises driving a first bull gear which induces rotational movement in a second bull gear and a third bull gear. 
     
     
         39 . The method of  claim 37 , wherein pumping fluid is done at a high pressure and a constant flow. 
     
     
         40 . The method of  claim 37 , wherein the bull gears are driven at a reduced rotational movement compared to the shaft.