Fluid end assembly
AssigneeKerr Machine Co.
InventorsChristopher Todd Barnett, Micheal Cole Thomas, Nicholas Son, John Keith, Kelcy Jake Foster
Life of this patent
Estimating the term…
Abstract
A fluid end assembly having a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section has a housing made of multiple-piece construction. One or more pieces of the housing are configured to have a plurality of stay rods attached thereto. The stay rods interconnect the fluid end assembly and a power end assembly.
Claims25
A fluid end, comprising:
- an insert comprising a beveled surface;
- a fluid routing plug, comprising:
- an outer surface;
- an annular shoulder;
- and
- a stress relief cutout defined on a surface of the fluid routing plug between the outer surface and the annular shoulder;
- in which the annular shoulder is configured to abut the insert;
- and
- a housing containing both the insert and the fluid routing plug.
A fluid routing plug configured to be situated within a fluid end, the fluid routing plug comprising:
- a body having a first surface and an opposed second surface joined by an outer intermediate surface, the outer intermediate surface comprising:
- an annular shoulder formed therein;
- an annular groove formed therein;
- and
- a stress relief cutout formed therein and situated intermediate the annular shoulder and the annular groove;
- a longitudinal axis extending through the body and both the first and second surfaces;
- a plurality of first fluid passages interconnecting the first surface and the outer intermediate surface;
- and
- a plurality of second fluid passages interconnecting the first surface and the second surface.
A fluid routing plug configured for use within a fluid end assembly comprising a housing and an annular wear ring, the fluid routing plug comprising:
- an annular seal engaging the annular wear ring;
- and
- a body defining an annular shoulder, the annular shoulder comprising:
- a cutout section;
- in which the cutout section does not contact the annular seal or the annular wear ring.
An apparatus, comprising:
- a fluid end comprising a housing;
- a fluid routing plug situated within the housing;
- and
- a wear ring situated within the housing and configured to abut the fluid routing plug, the wear ring comprising:
- a first surface configured to abut the fluid routing plug;
- a second surface opposed to the first surface;
- an intermediate surface situated between the first and second surfaces;
- and
- a stress relief cutout situated between the intermediate surface and the first surface, in which the stress relief cutout does not contact the fluid routing plug.
An apparatus, comprising:
- a fluid routing plug, comprising:
- an outer surface;
- an annular shoulder;
- and
- a stress relief cutout defined on a surface of the fluid routing plug between the outer surface and the annular shoulder;
- in which the annular shoulder is configured to abut an insert, the insert comprising a beveled surface;
- and
- in which the fluid routing plug is configured to be closely conformable to a wall of an elongate bore formed within a fluid end housing.
Dependencies are inferred from the claim text.