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Suction port lock nut with stub buttress threads

A trapezoidal, threaded technology, applied in the field of reciprocating pumps, can solve problems such as frequent use

Inactive Publication Date: 2013-12-11
S P M FLOW CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These service pumps are typically operable for relatively short periods of time, but are used frequently, such as several times a week

Method used

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  • Suction port lock nut with stub buttress threads
  • Suction port lock nut with stub buttress threads
  • Suction port lock nut with stub buttress threads

Examples

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Embodiment Construction

[0014] The apparatus and method of the present invention will now be described more fully with reference to the accompanying drawings, in which embodiments are shown. This subject matter of the present invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough. and complete, and fully convey the scope of the invention to those skilled in the art. Throughout, like reference numerals indicate like elements. For ease of reference to the drawings, directional terms are used for indication and representation only. For example, directional terms such as "above," "below," "above," "beneath," and similar terms are used to show relative position .

[0015] It will be understood that the subject matter of the present disclosure is not limited to the precise details of structure, operation, exact materials, or implementa...

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PUM

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Abstract

A reciprocating pump assembly having a block body, a cylinder chamber in the block body, a plunger reciprocatingly disposed in the block body, an opening in the block body adjacent the cylinder chamber, and a cover plate in the opening. Threads on the outer periphery of the cover plate engage threads formed within the opening. The threaded outer periphery of the cover plate extends into the cylinder chamber and past the threaded portion of the opening so that the load on the cover plate transfers from fully formed threads on the cover plate to threads formed on the opening.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to co-pending US Provisional Application Serial No. 61 / 138,776, filed December 18, 2008, the entire disclosure of which is incorporated herein by reference. technical field [0003] The present invention relates generally to reciprocating pumps, and in particular to improved apparatus for lock nuts in reciprocating pumps. Background technique [0004] In oilfield operations, reciprocating pumps are frequently used for various purposes. Some reciprocating pumps, commonly referred to as "service pumps," typically pump service fluids for downhole operations, such as cementing, acidizing, or fracturing the well. These service pumps are typically operable for relatively short periods of time, but are used frequently, such as several times a week. Typically, they are mounted to trucks or skids for transport to various well locations. [0005] Oilfield reciprocating pumps...

Claims

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Application Information

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IPC IPC(8): F04B39/12F04B35/01
CPCF04B39/121F04B39/125F04B53/16
Inventor J.E.霍斯M.D.马茨纳
Owner S P M FLOW CONTROL