Pump fluid end with integrated web portion

Patent metadata

Field	Value
Publication number	US-9945362-B2
Application number	US-201313755884-A
Country	US
Kind code	B2
Filing date	Jan 31, 2013
Priority date	Jan 27, 2012
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

A fluid end block for attachment to a power end of a high pressure reciprocating pump includes a main body portion having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and opposing side surfaces. A web portion protrudes outwardly from the outwardly facing body forward face. The web portion may have an outwardly facing web forward face and a curvilinear side surface. The web portion may be integral with the main body portion. A plurality of bosses protrude from the web forward face and having a forward facing end. The plurality of bosses may be integral with the main body portion and the web portion. A plunger bore extends through one of the plurality of bosses configured to receive a reciprocating plunger.

First claim

What is claimed is:

1. A fluid end block for attachment to a power end of a high pressure reciprocating pump, comprising:
a main body portion having a plurality of chambers therein, the main body portion having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and opposing side surfaces connecting the forward face and the rear face;
a web portion protruding outwardly from the outwardly facing body forward face, the web portion having an outwardly facing web forward face and a curvilinear side surface, the web portion being integral with the main body portion;
a plurality of bosses protruding from the web forward face and having a forward facing end, the plurality of bosses being integral with the main body portion and the web portion; and
a plunger bore extending through one of the plurality of bosses configured to receive a reciprocating plunger, the plunger bore extending from the end of said one of the plurality of bosses to one of the plurality of chambers in the main body portion.

2. The fluid end block of claim 1 , wherein the curvilinear side surface comprises a convex portion concentric with each of the plurality of bosses.

3. The fluid end block of claim 2 , wherein the convex portion has a radius greater than a radius of each of the plurality of bosses.

4. The fluid end block of claim 1 , wherein the main body portion comprises a tie rod hole disposed adjacent the web portion, the tie rod hole being disposed between undulating portions of the web portion.

5. The fluid end block of claim 4 , wherein the undulating portions are a portion of the curvilinear side surface.

6. The fluid end block of claim 4 , wherein the undulating portions is a part of a fillet connecting the curvilinear side surface of the web portion to the body forward face.

7. The fluid end block of claim 1 , wherein each of the plurality of bosses has a first length measured from the web forward face to the end of the boss, and wherein the web portion has a second length measured from the body forward face to the web forward face, the first length being greater than the second length.

8. The fluid end block of claim 1 , wherein the web portion extends across the body forward face from one of the opposing side surfaces to the other.

9. The fluid end block of claim 1 , wherein the plurality of bosses are aligned in a row so that a single plane passes through a central axis formed by each of the plurality of bosses.

10. The fluid end block of claim 1 , wherein the curvilinear side surface of the web portion is perpendicular to the body forward face and perpendicular to the web forward face.

11. The fluid end block of claim 1 , wherein each of the plurality of bosses comprises an outer surface portion having a first diameter adjacent the forward facing end and having a second diameter adjacent the web portion, the second diameter being greater than the first diameter.

12. The fluid end block of claim 1 , wherein the curvilinear side surface is an upper side surface, the fluid end block comprising a curvilinear lower side surface, wherein the curvilinear upper side surface mirrors the curvilinear lower side surface.

13. A fluid end block for attachment to a power end of a high pressure reciprocating pump, comprising:
a main body portion having a plurality of chambers therein, the main body portion having an outwardly facing body forward face, an outwardly facing rear face opposite the body forward face, and opposing side surfaces connecting the body forward face and the rear face;
a plurality of bosses supported by the main body portion and having a forward facing end, the plurality of bosses being integral with the main body portion and having an outer diameter at the forward facing end;
a web portion protruding outwardly from the outwardly facing body forward face of the main body portion, the web portion having a longitudinal length and a transverse height, the web portion joining each of the plurality of bosses to each other, the transverse height of the web portion being greater than the outer diameter of the plurality of bosses; and
a plunger bore extending through one of the plurality of bosses configured to receive a reciprocating plunger, the plunger bore extending from the end of said one of the plurality of bosses to one of the plurality of chambers in the main body portion.

14. The fluid end block of claim 13 , wherein the web portion comprises a curvilinear side surface comprising a convex portion concentric with each of the plurality of bosses.

15. The fluid end block of claim 14 , wherein the convex portion of the web portion has a radius greater than a radius of each of the plurality of bosses.

16. The fluid end block of claim 13 , wherein the main body portion comprises a tie rod hole disposed adjacent the web portion, the tie rod hole being disposed between undulating portions of the web portion.

17. The fluid end block of claim 16 , wherein the undulating portions are curvilinear side surfaces.

18. The fluid end block of claim 16 , wherein the undulating portions are part of a fillet connecting a curvilinear side surface of the web to the body forward face.

19. The fluid end block of claim 13 , wherein each of the plurality of bosses has a first length measured from a web forward face to the end of the boss, and wherein the web portion has a second length measured from the body forward face to the web forward face, the first length being greater than the second length.

20. The fluid end block of claim 13 , wherein the web portion extends entirely across the body forward face from one of the opposing side surfaces to the other.

21. The fluid end block of claim 13 , wherein the plurality of bosses are aligned in a row so that a single plane passes through a central axis formed by each of the plurality of bosses.

22. The fluid end block of claim 13 , wherein the web portion comprises upper and lower side surfaces and a web forward face, the upper and lower side surfaces being perpendicular to the body forward face and perpendicular to the web forward face.

23. The fluid end block of claim 13 , wherein each of the plurality of bosses comprises an outer surface portion having a first diameter adjacent the forward facing end and a second diameter adjacent the web portion, the second diameter being greater than the first diameter.

24. The fluid end block of claim 13 , wherein the web portion comprises curvilinear upper and lower side surfaces and a web forward face, wherein the curvilinear upper side surface mirrors the curvilinear lower side surface.

25. A fluid end block for attachment to a power end of a high pressure reciprocating pump, comprising:
a main body portion having an outwardly facing body forward face, an outwardly facing rear face opposite the body forward face, and opposing side surfaces connecting the body forward face and the rear face, the main body portion comprising a plurality of tie rod holes configured to receive tie rods connecting the fluid end block to the power end of a high pressure reciprocating pump;
a web portion protruding outwardly from the body forward face of the main body portion, the web portion having an curvilinear portion adjacent the tie rod holes, the curvilinear portion being shaped and disposed so that at least one of the tie rod holes is disposed between peaks of the curvilinear portion, the web portion being integrally formed with the m

Assignees

• Spm Flow Control Inc

Inventors

• Skurdalsvold Scott
• Bayyouk Jacob A
• Deleon Johnny E

Classifications

• F04B53/16 Primary

  Casings; Cylinders; Cylinder liners or heads; Fluid connections · CPC title

• F04B1/00 Primary

  Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (machines or pumps with pistons coacting within one cylinder F04B3/00) · CPC title

• B23P15/00

  Making specific metal objects by operations not covered by a single other subclass or a group in this subclass · CPC title

• F04B39/122

  Cylinder block · CPC title

• Y10T29/49236

  Fluid pump or compressor making · CPC title