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US 8,662,864 B2Granted
Offset valve bore in a reciprocating pump
AssigneeS.P.M. Flow Control, Inc.
InventorsJacob A. Bayyouk, Donald Mackenzie
Life of this patent
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AssigneeS.P.M. Flow Control, Inc.
InventorsJacob A. Bayyouk, Donald Mackenzie
Estimating the term…
A fluid end (15) for a multiple reciprocating pump assembly (12) comprises at least three plunger bores (61 or 91) each for receiving a reciprocating plunger (35), each plunger bore having a plunger bore axis (65 or 95). Plunger bores being arranged across the fluid head to define a central plunger bore and lateral plunger bores located on either side of the central plunger bore. Fluid end (15) has suction valve bores (59 or 89), each suction valve bore receiving a suction valve (41) and having a suction valve bore axis (63 or 93). Discharge valve bores (57 or 87), each discharge valve bore receiving a discharge valve (43) and having a discharge valve bore axis (63 or 93). The axes of at least one of suction and discharge valve bores is inwardly offset in the fluid end from its respective plunger bore axis.
A fluid end for a multiple reciprocating pump assembly, the fluid end comprising:
A fluid end according to any one of the preceding claims wherein the axes of both the suction and discharge valve bores are inwardly offset for at least one of the lateral plunger bores.
A fluid end according to any one of the preceding claims wherein, for each of the plunger bores, the suction valve bore opposes the discharge valve bore.
A fluid end according to any one of the preceding claims wherein, the fluid end comprises three or five plunger bores, and three or five corresponding suction and discharge valve bores.
A fluid end according to any one of the preceding claims wherein, for the lateral plunger bores, the at least one axis is inwardly offset in an amount of from about 10% to about 60% of the diameter of the plunger bore.
A fluid end according to any one of the preceding claims wherein the at least one axis is offset in an amount ranging from about 20% to about 50% of the diameter of the plunger bore.
A fluid end according to any one of the preceding claims wherein the at least one axis is offset in an amount ranging from about 30% to about 40% of the diameter of the plunger bore.
Dependencies are inferred from the claim text.