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US 12,313,063 B2Granted
High pressure water pump fluid end
AssigneeNLB Corp.
InventorDonald Anthony Wojciechowski, III
Life of this patent
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Abstract
A cartridge assembly for use in a high pressure pump according to an exemplary aspect of the present disclosure includes, among other things, a cartridge housing. A bore extends through the cartridge housing from a valve end to a packing end. A valve assembly is arranged in the valve end of the bore and configured to abut a valve seat. The bore has a constant diameter between the valve assembly and the packing end. The cartridge assembly is designed to be used in a fluid pump at a fluid pressure of at least 30,000 psi.
Claims20
A cartridge assembly for use in a high pressure pump, comprising:
- a cartridge housing abutting a valve seat;
- a bore extending from a valve end to a packing end through the cartridge housing along an axis;
- a valve assembly arranged in the valve end of the bore, the valve assembly including a valve, a valve guide, and a valve spring, the valve guide housing the valve spring, and the valve spring configured to bias the valve to abut the valve seat;
- wherein the bore has a constant diameter section between the valve assembly and the packing end;
- wherein a first portion of the valve guide is housed within the constant diameter section of the bore, and the valve guide is configured to be trapped axially between the cartridge housing and the valve seat;
- wherein a retainer flange is bolted to the cartridge housing;
- and
- the retainer flange includes a portion configured to engage with an axial recess of the cartridge housing.
5 more elements
Dependencies are inferred from the claim text.