Fluid end assembly

  • US 10,962,001 B2
  • Filed: 06/10/2020
  • Issued: 03/30/2021
  • Est. Priority Date: 07/14/2017
  • Status: Active Grant
First Claim
Patent Images

1. A fluid end assembly, comprising:

  • a housing having an external surface and an internal chamber;

    a first conduit formed in the housing and having first and second sections, each section independently interconnecting the internal chamber and the external surface;

    a second conduit formed in the housing, intersecting the first conduit and having third and fourth sections, each section independently interconnecting the internal chamber and the external surface;

    in which no threads are formed in any portion of the housing that surrounds and faces the third section;

    a component installed within the third section, in which the component has opposed rear and front surfaces joined by inner and outer intermediate surfaces, in which no threads are formed in the inner and outer intermediate surfaces;

    a plurality of packing seals installed within the component;

    a retainer having opposed rear and front surfaces and defining a central opening, in which the front surface of the retainer abuts the rear surface of the component;

    a fastening system installed within the retainer and the housing and configured to releasably hold the retainer against the component; and

    a packing nut installed within the central opening of the retainer and configured to releasably hold the plurality of packing seals within the component.

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