Power end frame assembly

Patent metadata

Field	Value
Publication number	US-2025084843-A1
Application number	US-202318463950-A
Country	US
Kind code	A1
Filing date	Sep 8, 2023
Priority date	Sep 8, 2023
Publication date	Mar 13, 2025
Grant date	—

Abstract

The present disclosure relates to power end frame assemblies having a plurality of bearing plates coupled together by a structural support. The frame assembly can include a plurality of bearing plates to support one or more components of a crankshaft assembly. Adjacent bearing plates of the frame assembly can form receptacles to accommodate a portion of one or more components of a crosshead assembly. The bearing plates of the frame assembly can have one or more openings to receive one or more structural supports. The one or more structural supports can couple together the plurality of bearing plates. Some configurations have bearing plates with portions that extend beyond the receptacle formed by adjacent bearing plates. In such configurations a structural support can couple the bearing plates via openings on these extended portions.

First claim

What is claimed is:

1 . A frame assembly comprising:
a plurality of bearing plates, each bearing plate comprising:
a body portion comprising a first opening for receiving a portion of a crankshaft assembly, the body portion extending from a circumference of the first opening;
a receptacle portion coupled to the body portion and extending in a first direction; and
a base portion coupled to the body portion and extending in a second direction, the base portion comprising an extension portion that extends beyond the circumference of the first opening and a second opening for receiving a structural support, the second opening at least partially positioned on the extension portion; and
a structural support extending through the second opening of each of the plurality of bearing plates, wherein:
the receptacle portions of adjacent bearing plates form receptacles to accommodate at least a portion of a crosshead assembly, and
the plurality of bearing plates are coupled together by the structural support.

2 . The frame assembly of claim 1 , wherein the extension portion has a portion that extends beyond the receptacle portion and the second opening is positioned on the portion of the extension portion that extends beyond the receptacle portion.

3 . The frame assembly of claim 1 , wherein the structural support is a first structural support, the base portion further comprises a third opening for receiving a structural support, the frame assembly further comprises a second structural support extending through the third opening of each of the plurality of bearing plates, and the plurality of bearing plates are coupled together by the second structural support.

4 . The frame assembly of claim 3 , wherein the third opening is positioned on the extension portion.

5 . The frame assembly of claim 4 wherein the extension portion has a portion that extends beyond the receptacle portion and the third opening is positioned on the portion of the extension portion that extends beyond the receptacle portion.

6 . The frame assembly of claim 1 , wherein the extension portion comprises a first extension portion extending beyond the receptacle portion and a second extension portion extending beyond the circumference of the first opening to the first extension portion.

7 . The frame assembly of claim 6 , wherein the structural support is a first structural support, the base portion further comprises a third opening for receiving a structural support, the frame assembly further comprises a second structural support extending through the third opening of each of the plurality of bearing plates, and the plurality of bearing plates are coupled together by the second structural support.

8 . The frame assembly of claim 7 , wherein the second opening is positioned on the second extension portion and the third opening is positioned on the first extension portion.

9 . The frame assembly of claim 8 , wherein the second and third openings are positioned on the first extension portion.

10 . The frame assembly of claim 1 , wherein the structural support comprises a tubular beam having a hollow body with a circular cross-section.

11 . The frame assembly of claim 1 , wherein each receptacle comprises a first crosshead plate and a second crosshead plate, and wherein the crosshead plates are coupled to the adjacent bearing plates that form the receptacle.

12 . The frame assembly of claim 11 , wherein the frame assembly further comprises one or more crankcase casing plates that correspond to respective receptacles formed by adjacent bearing plates of the frame assembly, wherein each crankcase casing plate is coupled to the first crosshead plate, the second crosshead plate, and the adjacent bearing plates of the respective receptacle, and wherein each crankcase casing plate extends from the first crosshead plate to the second crosshead plate and around the first opening of the adjacent bearing plates of the respective receptacle.

13 . The frame assembly of claim 12 , wherein each crankcase casing plate further comprises one or more openings for allowing access to one or more components of at least one of a crankshaft assembly, a bearing assembly, a plunger assembly, and a crosshead assembly.

14 . The frame assembly of claim 13 , further comprising a plurality of crossheads, wherein each crosshead is at least partially positioned within a corresponding receptacle.

15 . The frame assembly of claim 14 , further comprising a plurality of plunger assemblies, wherein each plunger assembly of the plurality of plunger assemblies comprises a plunger coupled to a crosshead of the plurality of crossheads and extends beyond the receptacle.

16 . The frame assembly of claim 15 , wherein each plunger assembly further comprises a connecting rod coupled to the crosshead and to a portion of a crankshaft positioned at least partially within the first opening of at least one of the adjacent bearing plates forming the receptacle.

17 . The frame assembly of claim 16 , further comprising a plurality of bearing assemblies, wherein each bearing assembly is positioned around a corresponding portion of a crankshaft and coupled to the first opening of at least one of the adjacent bearing plates forming the receptacle accommodating the plunger assembly coupled to the crankshaft.

18 . The frame assembly of claim 1 , wherein two bearing plates of the plurality of bearing plates are outboard bearing plates, four bearing plates of the plurality of bearing plates are inboard bearing plates, and wherein each outboard bearing plate further comprises a mounting plate coupled to the base portion.

19 . A frame assembly comprising:
a plurality of bearing plates, each bearing plate comprising:
a body portion comprising a first opening for receiving a portion of a crankshaft assembly, the body portion extending from a circumference of the first opening;
a receptacle portion coupled to the body portion and extending in a first direction; and
a base portion coupled to the body portion and extending in a second direction, the base portion comprising a first extension portion that extends beyond the receptacle portion, a second extension portion that extends beyond the circumference of the first opening to the first extension, a second opening for receiving a structural support at least partially positioned on the first extension portion, and a third opening for receiving a structural support at least partially positioned on the second extension portion;
a first structural support extending through the second opening of each of the plurality of bearing plates; and a second structural support extending through the third opening of each of the plurality of bearing plates, wherein:
the receptacle portions of adjacent bearing plates form receptacles to accommodate at least a portion of a crosshead assembly, and the plurality of bearing plates are coupled together by the first and second structural supports.

20 . A reciprocating pump comprising:
a fluid end; and a power end coupled to the fluid end and comprising a frame assembly; wherein the frame assembly comprises:
a plurality of bearing plates, each bearing plate comprising:
a body portion comprising a first opening for receiving a portion of a crankshaft assembly, the body portion extending from a circumference of the first opening;
a receptacle portion coupled to the body portion and extending in a first direction; and
a base portion coupled to the body portion and extending in a second direction,

Assignees

• Bj Energy Solutions Llc

Inventors

• Pham Hau Nguyen-Phuc

Classifications

• F04B53/16 Primary

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

• F16J10/00 Primary

  Engine or like cylinders (pressure vessels in general F16J12/00; cylinders for engines or other apparatus of particular kinds, see the appropriate subclasses, e.g. for combustion engines F02F); Features of hollow, e.g. cylindrical, bodies in general · CPC title