Fluid end for a plunger pump

Details Fluid end for a plunger pump Fluid end for a plunger pump

2005-06-01

2009-02-03

Lazo, Thomas E (Department: 3745)

Expansible chamber devices

Cylinder detail

C417S539000, C417S567000

Reexamination Certificate

active

07484452

ABSTRACT:
A fluid end for a reciprocating pump including a body having a base, a side and a longitudinal opposing side, a cylinder bore formed horizontally through the body and a vertical bore intersecting the cylinder bore defining a high stress region proximate the intersection, and a tension member extending through the body substantially parallel to the longitudinal axis of the body, wherein the tension member provides a compressive load on the body reducing the stresses encountered in the region during operation of the fluid end.

REFERENCES:
patent: 4878815 (1989-11-01), Stachowiak
patent: 5059101 (1991-10-01), Valavaara
patent: 5061159 (1991-10-01), Pryor
patent: 5073096 (1991-12-01), King et al.
patent: 5253987 (1993-10-01), Harrison
patent: 5636975 (1997-06-01), Tiffany et al.
patent: 7335002 (2008-02-01), Vicars
patent: 7341435 (2008-03-01), Vicars
Badr EA, Sorem JR, Tipton SM; Evaluation of the Autofreitage Effect on Fatique Lives of Steel Blocks with Crossbores Using a Statistical and a Strain-Based Method, Journal of Testing and Evaluation, May 2000, pp. 181-187, vol. 28, Issue 3.

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