Reciprocating pump assembly
First Claim
1. A reciprocating pump assembly, comprising:
- a power end housing;
a fluid end housing having a vertical bore intersected by a crossbore, the vertical bore including a suction valve and a discharge valve to facilitate fluid flow through the fluid end housing;
a cylinder having at least a portion within the power end;
a plunger assembly reciprocating between the power end housing and the fluid end housing of the pump assembly, the plunger assembly having a crosshead, a first section secured to the crosshead and limited to movement within the power end and a second section moveable within the crossbore of the fluid end housing, the second section secured against the first section by a retainer member disposed inside the first and second sections;
a seal housing disposed within the cylinder, the seal housing having a proximal end adjacent an entrance to the cylinder, and a distal end disposed within the cylinder,a power end seal secured to the seal housing proximate the distal end;
a fluid end seal disposed within the crossbore of the fluid end housing;
wherein the power end seal sealingly engages an outer surface of the first section and the fluid end seal sealingly engages an outer surface of the second section such that during the reciprocating movement of the plunger assembly, fluid end proppant is deterred from contaminating the outer surface of the first section and thus, contaminating the power end seal; and
wherein the retainer member is configured to secure the first section and the second section to the cross-head.
2 Assignments
0 Petitions
Accused Products
Abstract
A reciprocating pump assembly having a power end housing and a fluid end housing and a cylinder having at least a portion within the power end. A plunger assembly reciprocates between the power end housing and the fluid end housing of the pump assembly, the plunger assembly having a crosshead, a first section limited to movement within the power end and a second section moveable within the fluid end housing. The pump assembly also includes a seal housing disposed within the cylinder, the seal housing having a proximal end adjacent an entrance to the cylinder, and a distal end disposed within the cylinder. A power end seal is secured to the seal housing proximate the distal end and a fluid end seal is disposed within the fluid end housing. The power end seal sealingly engages an outer surface of the first section and the fluid end seal sealingly engages an outer surface of the second section such that during the reciprocating movement of the plunger assembly, fluid end proppant is deterred from contaminating the outer surface of the first section and thus, contaminating the power end seal.
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Citations
20 Claims
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1. A reciprocating pump assembly, comprising:
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a power end housing; a fluid end housing having a vertical bore intersected by a crossbore, the vertical bore including a suction valve and a discharge valve to facilitate fluid flow through the fluid end housing; a cylinder having at least a portion within the power end; a plunger assembly reciprocating between the power end housing and the fluid end housing of the pump assembly, the plunger assembly having a crosshead, a first section secured to the crosshead and limited to movement within the power end and a second section moveable within the crossbore of the fluid end housing, the second section secured against the first section by a retainer member disposed inside the first and second sections; a seal housing disposed within the cylinder, the seal housing having a proximal end adjacent an entrance to the cylinder, and a distal end disposed within the cylinder, a power end seal secured to the seal housing proximate the distal end; a fluid end seal disposed within the crossbore of the fluid end housing; wherein the power end seal sealingly engages an outer surface of the first section and the fluid end seal sealingly engages an outer surface of the second section such that during the reciprocating movement of the plunger assembly, fluid end proppant is deterred from contaminating the outer surface of the first section and thus, contaminating the power end seal; and wherein the retainer member is configured to secure the first section and the second section to the cross-head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A reciprocating pump assembly, comprising:
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a power end housing and a fluid end housing; a cylinder having at least a portion within the power end; a plunger assembly reciprocating between the power end housing and the fluid end housing of the pump assembly, the plunger assembly having a crosshead, a first section limited to movement within the power end and a second section moveable within the fluid end housing; a retainer member disposed within the first and second sections, the retainer member positioning the first section against the second section and further, positioning the first section against the crosshead to securely fasten the second section and the first section to the crosshead. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A reciprocating pump assembly, the assembly comprising a first pump and a second pump disposed in a back-to-back assembly having a width that is less than or equal to 102 inches, each of the first and second pump comprising:
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a power end housing and a fluid end housing; a cylinder having at least a portion within the power end; a plunger assembly reciprocating between the power end housing and the fluid end housing of the pump assembly, the plunger assembly having a crosshead, a first section secured to the crosshead and limited to movement within the power end and a second section moveable within the fluid end housing, the second section secured against the first section by a retainer member disposed inside the first and second sections; a seal housing disposed within the cylinder, the seal housing having a proximal end adjacent an entrance to the cylinder, and a distal end disposed within the cylinder, a power end seal secured to the seal housing proximate the distal end; a fluid end seal disposed within the fluid end housing; wherein the power end seal sealingly engages an outer surface of the first section and the fluid end seal sealingly engages an outer surface of the second section such that during the reciprocating movement of the plunger assembly, fluid end proppant is deterred from contaminating the outer surface of the first section and thus, contaminating the power end seal; and wherein the retainer member is configured to secure the first section and the second section to the cross-head. - View Dependent Claims (20)
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Specification