Wear ring for a fluid end cartridge
AssigneeSPM Oil & Gas Inc.
InventorsDavid T Figgs, Justin Poehls, Nuder Said, Alireza Atabaie, Chiawei Steven Su, Daryl James Belshan
Life of this patent
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Abstract
A valve cartridge for a fluid pump may include a valve cartridge housing, a fluid cavity defined in the valve cartridge housing, and a valve configured to control flow through the fluid cavity. The valve may include one or more guiding components configured to guide opening and closing of the valve. The valve cartridge may include a wear ring surrounding the one or more guiding components to allow sliding movement of the one or more guiding components along an inner surface of the wear ring.
Claims19
A fluid end of a hydraulic fracturing pump, comprising:
- a fluid end block having a bore;
- a plunger configured to reciprocate with respect to the bore;
- and
- a valve cartridge, configured for insertion and removal from the bore as a unit, comprising:
- a valve cartridge housing;
- a fluid cavity defined in the valve cartridge housing;
- a valve configured to control flow through the fluid cavity, the valve comprising a plurality of legs configured to guide opening and closing of the valve;
- a wear ring surrounding the plurality of legs to allow sliding movement of the plurality of legs along an inner surface of the wear ring;
- and
- a spring, configured to bias the valve to a closed position, engaging a base of the plurality of legs.
4-9. (canceled)
11-20. (canceled)
A fluid end of a hydraulic fracturing pump, comprising:
- a valve cartridge, configured for insertion and removal from a bore of a fluid end block of the fluid end as a unit, comprising:
- a valve cartridge housing;
- a fluid cavity defined in the valve cartridge housing;
- and
- a valve configured to control flow through the fluid cavity, the valve comprising one or more guiding components configured to guide opening and closing of the valve;
- and
- a packing cartridge, configured for insertion and removal from the bore as a unit, comprising:
- a packing cartridge housing defining a plunger bore for a plunger configured to reciprocate with respect to the bore;
- a packing disposed in the packing cartridge housing;
- and
- a wear ring disposed in the packing cartridge housing between the one or more guiding components and an inner surface of the packing cartridge housing.
A fluid end of a hydraulic fracturing pump, comprising:
- a valve cartridge, configured for insertion and removal from a bore of a fluid end block of the fluid end as a unit, comprising:
- a valve cartridge housing;
- a handle having a handle bore;
- a fluid cavity defined in the valve cartridge housing;
- a valve configured to control flow through the fluid cavity, the valve comprising one or more guiding components configured to guide opening and closing of the valve;
- an additional valve configured to control flow through the fluid cavity, the additional valve having a sealing face at a first side of a valve head of the additional valve and a valve stem, configured to guide opening and closing of the additional valve, extending from a second side of the valve head of the additional valve opposite the first side, the valve stem extending into the handle bore;
- and
- a wear ring disposed in the handle bore between the valve stem and an inner surface of the handle bore, the wear ring surrounding the valve stem to allow sliding movement of the valve stem along an inner surface of the wear ring.
Dependencies are inferred from the claim text.