US 11,952,990 B2
Fracturing pump arrangement using a plunger with an internal fluid passage
Mark S. Nowell, Ardmore, OK (US); Kelcy Jake Foster, Ardmore, OK (US); Micheal Cole Thomas, Ardmore, OK (US); Christopher Todd Barnett, Stratford, OK (US); Guy J. Lapointe, Sulphur, OK (US); and Brandon Scott Ayres, Ardmore, OK (US)
Assigned to Kerr Machine Co., Sulphur, OK (US)
Filed by Kerr Machine Co., Sulphur, OK (US)
Filed on Feb. 2, 2023, as Appl. No. 18/163,317.
Application 17/692,420 is a division of application No. 16/860,146, filed on Apr. 28, 2020, granted, now 11,578,710.
Application 18/163,317 is a continuation of application No. 17/692,420, filed on Mar. 11, 2022, granted, now 11,592,011.
Claims priority of provisional application 62/842,009, filed on May 2, 2019.
Claims priority of provisional application 62/872,664, filed on Jul. 10, 2019.
Claims priority of provisional application 62/878,146, filed on Jul. 24, 2019.
Claims priority of provisional application 62/880,409, filed on Jul. 30, 2019.
Claims priority of provisional application 62/882,328, filed on Aug. 2, 2019.
Claims priority of provisional application 62/901,445, filed on Sep. 17, 2019.
Claims priority of provisional application 62/939,339, filed on Nov. 22, 2019.
Claims priority of provisional application 62/950,746, filed on Dec. 19, 2019.
Prior Publication US 2023/0193884 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F04B 39/00 (2006.01); E21B 43/12 (2006.01); F04B 1/0408 (2020.01); F04B 39/10 (2006.01)
CPC F04B 39/0005 (2013.01) [E21B 43/129 (2013.01); F04B 1/0408 (2013.01); F04B 39/10 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a fluid end body having a borehole formed therein, the fluid end body configured to be attached to a power end using a plurality of stay rods, the power end comprising a rotatable crankshaft;
a plunger positioned within the borehole and having a first fluid passageway formed therein; in which the plunger is configured to be operatively connected to the crankshaft such that the plunger reciprocates within the borehole in response to rotation of the crankshaft;
a flexible inlet conduit having opposed first and second ends and a second fluid passageway formed therein; in which the first end of the flexible inlet conduit is configured to be attached to a stationary inlet manifold and the second end of the flexible inlet conduit is attached to the plunger such that the second fluid passageway is in fluid communication with the first fluid passageway;
an inlet valve positioned within the first fluid passageway; and
at least one packing seal installed within the borehole and engaging an outer surface of the plunger; in which the plunger is movable within the borehole relative to the at least one packing seal.