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US 6,623,259 B1Granted
High pressure plunger pump housing and packing
OwnerGeorge H. Blumeinventor
Life of this patent
Estimating the term…
Abstract
Y-block or right-angular fluid section plunger pump housings have cylinder, suction, discharge and/or access bores which are transversely elongated within transition areas for interface with other bores to provide internal access, stress relief and a reduction in housing weight. A two-piece suction valve spring retainer assembly further reduces stress near the bore interfaces and allows use of a top stem guided suction valve that may be installed without threads in the suction bore. Tapered cartridge packing assemblies facilitate use of a one-piece plunger and also allow packing in such housings to be changed without removing the plunger.
Claims18
A plunger pump housing comprising:
- a suction valve bore having a portion with substantially circular cross-sections for accommodating a circular suction valve, a transition area and a first centerline;
- a discharge valve bore having a portion with substantially circular cross-sections for accommodating a circular discharge valve, a transition area, and a second centerline, said first centerline being coplanar with and intersecting said second centerline, said first and second centerlines subtending a first angle;
- and
- a cylinder bore having a proximal packing area and a distal transition area, said cylinder bore transition area interfacing with said suction valve bore transition area and said discharge valve bore transition area, each said interface comprising at least one chamfer, said packing area having a substantially circular cross-section and a third centerline, said third centerline being coplanar with and intersecting said first and second centerlines to allow substantially unimpeded fluid flow from said suction bore to said discharge bore under the influence of reciprocating plunger movement in said cylinder bore, said second and third centerlines subtending a second angle, and said first and third centerlines subtending a third angle;
- wherein said suction valve bore transition area comprises an elongated cross-section substantially perpendicular to said first centerline and with a long axis substantially perpendicular to said plane of said first and second centerlines;
- and
- wherein said discharge valve bore transition area comprises an elongated cross-section substantially perpendicular to said second centerline and with a long axis substantially perpendicular to said plane of said first and second centerlines;
- and
- wherein said cylinder bore transition area comprises an elongated cross-section substantially perpendicular to said third centerline and with a long axis substantially perpendicular to said plane of said first and second centerlines.
6 more elements
A valve spring retainer assembly comprising
- an inner complementary portion;
- an outer complementary portion;
- and
- at least one reversibly adjustable fastener for clamping said inner and outer complementary portions on either side of a lip projecting from a plunger pump housing into a suction valve bore of said housing.
1 more element
A right-angular plunger pump housing comprising:
- a suction valve bore having a portion with substantially circular cross-sections for accommodating a circular suction valve, a transition area and a first centerline;
- a discharge valve bore having a portion with substantially circular cross-sections for accommodating a circular discharge valve, a transition area, and a second centerline, said first centerline being coplanar with and intersecting said second centerline, said first and second centerlines being substantially colinear;
- a cylinder bore having a proximal packing area and a distal transition area, said cylinder bore transition area interfacing with said suction valve bore transition area and said discharge valve bore transition area, each said interface comprising at least one chamfer, said packing area having a substantially circular cross-section and a third centerline, said third centerline being coplanar with said first and second centerlines to allow substantially unimpeded fluid flow from said suction bore to said discharge bore under the influence of reciprocating plunger movement in said cylinder bore;
- and
- an access bore having a transition area interfacing with said suction valve bore transition area and said discharge valve bore transition area, each said interface comprising at least one chamfer, and said access bore having a center line colinear with said third center line;
- wherein said suction valve bore transition area has an elongated cross-section substantially perpendicular to said first centerline and with a long axis substantially perpendicular to said plane of said first and third centerlines;
- and
- wherein said discharge valve bore transition area has an elongated cross-section substantially perpendicular to said second centerline and with a long axis substantially perpendicular to said plane of said second and third centerlines;
- and
- wherein said access bore transition area has an elongated cross-section substantially perpendicular to said third centerline and with a long axis substantially perpendicular to said plane of said second and third centerlines;
- and
- wherein said cylinder bore transition area has an elongated cross-section substantially perpendicular to said third centerline and with a long axis substantially perpendicular to said plane of said first and third centerlines.
9 more elements
Dependencies are inferred from the claim text.