Plunger pump fluid end
AssigneeAdvanced Upstream Solutions LLC
InventorsBradley Allan Brooks, Michael David Conatser, Sean Christopher Cornett, Rondall Bailey McKelroy, Blake Mullins, Stephen Seymour
Life of this patent
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Abstract
A reciprocating plunger pump fluid end having increased material thicknesses in typical high stress concentration areas includes locating valves in spherically segmented shaped suction and discharge bores adjacent to chamfered transition areas to provide for reduced stress concentrations, resistance to fatigue failure and erosion and ease of access for maintenance. Among other features the housing includes a valve retainer assembly integrally mounted inside the housing which includes a profile to reduce stresses in the bores and facilitate access for replacement of internal components.
Claims10
A valve retainer assembly comprising:
- a valve retainer body with a central axis which comprises:
- a pair of channels capable of receiving ridges;
- a hub which is connected to or formed integrally with said body,
- wherein said pair of channels are defined by a first and second pair of upper and lower rims;
- said first and second pair of upper and lower rims all having a top surface and a bottom surface, respectively;
- wherein the top surface of the first upper rim and the bottom surface of the second lower rim are disposed in a first plane and the top surface of the second upper rim and the bottom surface of the first lower rim are disposed in a second plane, and
- wherein said first and second planes intersect at the central axis of the valve retainer body.
A plunger pump fluid end housing comprising:
- a suction valve bore and a discharge valve bore disposed along a first centerline;
- wherein said suction valve bore and discharge valve bore each have a spherically segmented cross-section portion capable of accommodating a suction valve and a discharge valve, respectively;
- a plunger bore and an access bore disposed along a second centerline, the second centerline perpendicular to the first centerline;
- ridges formed on said suction valve bore parallel to said second centerline;
- a valve retainer assembly, further comprising:
- a valve retainer body with a central axis which comprises:
- a pair of channels within which said ridges on said suction valve bore are received to thereby position the valve retainer body within said suction valve bore parallel to the second centerline;
- a hub which is connected to or formed integrally with said valve retainer body, said hub movably coupled to said suction valve;
- wherein said pair of channels is defined by a first and second pair of upper and lower rims;
- and
- wherein said first and second pair of upper and lower rims have a top surface and a bottom surface, respectively;
- and
- wherein the top surface of the first upper rim and the bottom surface of the second lower rim are disposed in a first plane and the top surface of the second upper rim and the bottom surface of the first lower rim are disposed in a second plane, and
- wherein said first and second planes intersect at the central axis of the valve retainer body.
Dependencies are inferred from the claim text.