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US 11,143,315 B2Granted
Sealing high pressure flow devices
AssigneeKerr Machine Co.
InventorsMark S. Nowell, Kelcy Jake Foster, Michael Eugene May, Brandon Scott Ayres, Christopher Todd Barnett, Micheal Cole Thomas, Guy J. Lapointe
Life of this patent
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Abstract
Apparatus and method contemplating a high pressure fluid end assembly having a body defining a body bore and defining a recess in the body intersecting the body bore. A closure is joined to the body and forms a sealing surface. A seal is mounted to the body in the recess and configured to extend from the recess beyond the body bore to seal against the sealing surface formed by the closure.
Claims9
An apparatus, comprising:
- a fluid end housing in which a plurality of bores, including a plunger bore and a suction bore, are formed, wherein the plunger bore has a first segment and a second segment, wherein the first segment has a groove and is located closer to the suction bore than the second segment, and wherein the second segment has a greater diameter than the first segment;
- a sleeve installed within the plunger bore, wherein the sleeve includes:
- a first sleeve portion having a constant first inner diameter and a constant first outer diameter;
- a second sleeve portion having a constant second inner diameter and a constant second outer diameter, wherein the second inner diameter and second outer diameter are greater than the first inner diameter and first outer diameter, respectively;
- and
- a third sleeve portion that includes at least one groove around an exterior of the third sleeve portion;
- wherein the first sleeve portion is installed within the first segment of the plunger bore and the second sleeve portion and third sleeve portion are installed within the second segment of the plunger bore such that the second sleeve portion is closer to the first sleeve portion;
- stuffing box packing located within the second and third sleeve portions;
- and
- a seal that is positioned in the groove of the first segment and that engages with the first sleeve portion.
7 more elements
Dependencies are inferred from the claim text.