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US 12,270,491 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.
Claims10
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 installed within the first segment of the plunger bore;
- and
- a second sleeve portion installed within the second segment of the plunger bore, wherein the second sleeve portion has greater inner and outer diameters than the first sleeve portion;
- a retainer attached to the fluid end housing and engaged with the sleeve to secure the sleeve within the plunger bore;
- stuffing box packing located within the second sleeve portion;
- and
- a seal positioned in the groove and engaging the first sleeve portion.
6 more elements
Dependencies are inferred from the claim text.