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US 2020/0080661 A1Published application
Hydraulic fluid pump and retainer assembly for same
AssigneeGardner Denver Petroleum Pumps, LLC
InventorsChance Ray Mullins, Robert James Dyer, Peter Ross Ehlers
Life of this patent
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Abstract
A fluid end assembly of a hydraulic fluid pump includes a housing having an axial bore, a removable valve cover closing the axial bore, and a retainer engaging the axial bore. The retainer includes a central opening. The fluid end assembly further includes a threaded drive member positioned within the central opening and operable to apply a preload against the retainer.
Claims20
A fluid end assembly of a hydraulic fluid pump comprising:
- a housing having an axial bore;
- a removable valve cover closing the axial bore;
- a retainer engaging the axial bore, the retainer comprising a central opening;
- and
- a threaded drive member positioned within the central opening and operable to apply a preload against the retainer.
2 more elements
A method of assembling a fluid end assembly of a hydraulic fluid pump, the method comprising
- inserting a removable valve cover into an axial bore of a housing of the fluid end assembly, the removable valve cover closing and sealing the axial bore;
- engaging a threaded drive member with one of the valve cover or a retainer;
- engaging the retainer with the axial bore of the housing;
- positioning the threaded drive member within a central opening of the retainer;
- and
- applying a preload against the retainer by rotating the threaded drive member relative to the retainer and the valve cover.
3 more elements
Dependencies are inferred from the claim text.