Fluid end with clamped retention
AssigneeKerr Machine Co.
InventorsKelcy Jake Foster, Micheal Cole Thomas, Christopher Todd Barnett, Nicholas Son, John Keith
Life of this patent
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Abstract
A fluid end assembly comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each section comprises a housing containing a reciprocating plunger. One and only one packing seal is installed within the housing and surrounds and engages an outer surface of the plunger. A retainer compresses and holds the packing seal within the housing. The retainer is secured to the housing using a clamp, such that no threads are formed in the housing of the fluid end section and no threads are formed in the retainer.
Claims21
A fluid end, comprising:
- a housing having a longitudinal axis and opposed front and rear surfaces joined by an outer intermediate surface;
- a bore formed within the housing and interconnecting the front and rear surfaces, the bore extending along the longitudinal axis of the housing;
- a retainer abutting the rear surface of the housing;
- a clamp surrounding and engaging at least a portion of the retainer and at least a portion of the housing and securing the retainer and the housing together, the clamp comprising:
- an inner clamp surrounded by an outer clamp;
- a reciprocating plunger disposed within the bore and the retainer;
- a packing seal installed within the housing and engaging an outer surface of the plunger;
- in which the fluid end is configured to be attached to a power end by a plurality of threaded stay rods;
- and
- the fluid end further comprising a valve pair situated within the horizontal bore, the valve pair comprising a suction valve and a discharge valve.
A fluid end, comprising:
- a housing having a longitudinal axis and opposed front and rear surfaces joined by an outer intermediate surface;
- a horizontal bore formed within the housing and interconnecting the front and rear surfaces, the bore extending along the longitudinal axis of the housing;
- a retainer abutting the rear surface of the housing;
- a clamp surrounding and engaging at least a portion of the retainer and at least a portion of the housing and securing the retainer and the housing together;
- a reciprocating plunger disposed within the horizontal bore and the retainer;
- a valve pair situated within the horizontal bore, the valve pair comprising a discharge valve and a suction valve;
- a fluid routing plug situated within the horizontal bore;
- and
- one and only one packing seal installed within the housing and engaging an outer surface of the plunger.
Dependencies are inferred from the claim text.