Fluid routing plug

Patent metadata

Field	Value
Publication number	US-11686296-B2
Application number	US-202217884736-A
Country	US
Kind code	B2
Filing date	Aug 10, 2022
Priority date	Nov 18, 2019
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

A fluid routing plug for use with a fluid end section. The fluid end section being one of a plurality of fluid end sections making up a fluid end side of a high pressure pump. The fluid routing plug is installed within a horizontal bore formed in a fluid end section and is configured to route fluid throughout the fluid end section.

First claim

What is claimed is:

1. A fluid routing plug, comprising:
a body having a suction surface and an opposed discharge surface, in which the suction and discharge surfaces are joined by an outer intermediate surface; and in which the body has a central longitudinal axis that extends through the suction and discharge surfaces;
a plurality of fluid passages formed in the body, in which the plurality of fluid passages do not intersect with each other;
in which the intermediate surface of the body comprises:
a first groove formed in the intermediate surface of the body adjacent the discharge surface and surrounding the longitudinal axis, the first groove configured to receive a seal;
a second groove formed in the intermediate surface of the body adjacent the suction surface and surrounding the longitudinal axis, the second groove configured to receive a seal; in which a diameter of the first groove is greater than a diameter of the second groove; and
an annular shoulder positioned adjacent the second groove and configured to engage an annular insert, the annular insert changed to bounded by opposing continuous first and second annular surfaces and inner and outer continuous intermediate radial surfaces and configured to be positioned intermediate the annular shoulder and the suction surface of the body, wherein the continuous first annular surface faces a same direction as the suction surface faces.

2. The fluid routing plug of claim 1 , further comprising:
the seal installed in the first groove which is a first seal; and
the seal installed in the second groove, which is a second seal, the second seal configured to engage the annular insert.

3. The fluid routing plug of claim 1 , in which the annular insert is made of a material comprising tungsten carbide.

4. A fluid end section comprising:
a housing having a longitudinal axis and opposed first and second surfaces joined by an outer intermediate surface;
a horizontal bore formed within the housing and interconnecting the first and second surfaces, the horizontal bore extending along the longitudinal axis of the housing;
an annular insert which is the annular insert installed within a groove formed in walls of the housing and surrounding the horizontal bore; and
the fluid routing plug of claim 1 installed within the horizontal bore such that the annular shoulder engages the annular insert.

5. The fluid end section of claim 4 , in which the housing comprises:
a first section joined to a second and a third section by a plurality of fasteners;
in which at least a portion of the fluid routing plug is positioned within the first, second, and third sections of the housing.

6. The fluid end section of claim 5 , in which the first section of the housing is configured to receive a discharge valve, the third section of the housing is configured to receive a suction valve, and the second section of the housing is positioned intermediate the first and third sections; in which the annular shoulder is positioned within the second section of the housing; and in which the second groove formed in the body of the fluid routing plug is positioned within the third section of the housing.

7. The fluid end section of claim 6 , in which the annular insert is positioned within the third section of the housing.

8. The fluid end section of claim 4 , in which the fluid routing plug further comprises:
the seal installed in the first groove which is a first seal; and
the seal installed in the second groove which is a second seal, the second seal engaging the annular insert.

9. The fluid end section of claim 8 , in which the groove formed in the walls of the housing is characterized as the first groove formed in the walls of the housing, the fluid end section further comprising:
a wear ring installed within a second groove formed in the walls of the housing and surrounding the horizontal bore, the wear ring engaging the first seal.

10. The fluid end section of claim 9 , in which the wear ring is made of a harder material than that of the body of the fluid routing plug.

11. A fluid end comprising:
a plurality of the fluid end sections of claim 4 positioned in a side-by-side relationship.

12. A pump, comprising:
a power end comprising an engine; and
the fluid end of claim 11 attached to the power end.

13. The fluid routing plug of claim 1 , in which the plurality of fluid passages comprises:
a plurality of suction fluid passages formed in the body, each of the suction fluid passages interconnecting the intermediate surface and the suction surface; and
a plurality of discharge fluid passages formed in the body, each discharge fluid passage interconnecting the suction and discharge surfaces of the body; in which at least a portion of one of the discharge fluid passages intersects a plane that contains the central longitudinal axis of the body.

14. The fluid routing plug of claim 13 , in which at least a portion of each of the discharge fluid passages has an arced cross-sectional shape.

15. The fluid routing plug of claim 13 , in which each of the suction fluid passages has a first longitudinal axis; and in which the first longitudinal axis does not intersect the central longitudinal axis of the body.

16. The fluid routing plug of claim 13 , further comprising:
an axially-blind bore formed in the suction surface of the body; in which the interconnection between the plurality of suction passages in the body and the suction surface is formed within the axially-blind bore.

17. The fluid routing plug of claim 1 , in which the plurality of fluid passages comprises:
a plurality of suction fluid passages formed in the body, each of the suction fluid passages interconnecting the intermediate surface and the suction surface; and
a plurality of discharge fluid passages formed in the body, each discharge fluid passage interconnecting the suction and discharge surfaces of the body;
in which each of the discharge fluid passages open on the suction surface at a first opening and opens on the discharge surface at a second opening;
in which a position of the first and second openings is determined relative to a plane containing a first line perpendicular to the central longitudinal axis;
in which the first opening, when projected onto a plane, is positioned a first distance from the central longitudinal axis and a second line interconnecting the first opening and the central longitudinal axis forms a first angle relative to the first line; and
in which the second opening, when projected onto the plane, is positioned at a second distance from the central longitudinal axis and a third line interconnecting the second opening and the central longitudinal axis forms a second angle relative to the first line.

18. The fluid routing plug of claim 17 , in which the first and second distances are different.

19. The fluid routing plug of claim 18 , in which the first and second angles are different.

20. The fluid routing plug of claim 17 , in which the first and second angles are different.

21. A fluid end section comprising:
a housing having a longitudinal axis and opposed first and second surfaces joined by an outer intermediate surface, the housing comprising:
a first section joined to a second and a third section by a plurality of fasteners;
in which the first section of the housing is configured to receive a discharge valve, the third section of the housing is configured to receive a suction valve, and the second section of the housing is positioned intermediate

Assignees

• Kerr Machine Co

Inventors

• Son Nicholas
• Thomas Micheal Cole
• Barnett Christopher Todd
• Foster Kelcy Jake
• Keith John

Classifications

• F04B53/1032

  Spring-actuated disc valves (F04B53/1022, F04B53/103 take precedence) · CPC title

• F04B1/0452

  Distribution members, e.g. valves (machines or pumps with cam-actuated distribution members at the outer ends of the cylinders F04B1/0472; machines or pumps with cam-actuated distribution members at the inner ends of the cylinders F04B1/0531; the piston-driving cams being provided with inlets and outlets F04B1/0535) · CPC title

• F04B7/0208

  the distribution member forming both the inlet and discharge distributor for one single pumping chamber · CPC title

• F04B53/162

  Adaptations of cylinders · CPC title

• F04B7/0084

  Component parts or details specially adapted therefor · CPC title