A drilling fluid pumping system including a pump apparatus with a pumping chamber having an inlet valve and an outlet valve and a dampener system in fluid communication with the pumping chamber for damping the flow of fluid, e.g. drilling fluid, This abstract is provided to comply with the rules req
A drilling fluid pumping system including a pump apparatus with a pumping chamber having an inlet valve and an outlet valve and a dampener system in fluid communication with the pumping chamber for damping the flow of fluid, e.g. drilling fluid, This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
대표청구항▼
1. A dampener system, comprising: a housing comprising a cylindrical axis;a deformable bladder positioned within said housing, said deformable bladder comprising a body comprised of a plurality of spaced-apart lobes, wherein said deformable bladder is adapted to be expandable in response to a fluid
1. A dampener system, comprising: a housing comprising a cylindrical axis;a deformable bladder positioned within said housing, said deformable bladder comprising a body comprised of a plurality of spaced-apart lobes, wherein said deformable bladder is adapted to be expandable in response to a fluid pressure within said deformable bladder, wherein said spaced-apart lobes, when said bladder is fully pressurized within said housing, extend along a direction that is substantially parallel to said cylindrical axis of said housing and wherein said deformable bladder comprises an axial length in a direction that is substantially parallel to said cylindrical axis of said housing; anda split-ring member with unconnected ends positioned around substantially the entire axial length of said deformable bladder, wherein said unconnected ends overlap one another. 2. The system of claim 1, wherein said split-ring member has a generally cylindrical configuration that is split along its axial length. 3. The system of claim 1, further comprising a spring positioned around said deformable bladder. 4. The system of claim 3, wherein said spring is a wave-shaped spring comprised of a plurality of ridges and a plurality of valleys. 5. The system of claim 1, wherein said split-ring member has a generally cylindrical configuration that is split along its axial length and a spring positioned around said split-ring member with said generally cylindrical configuration. 6. The system of claim 5, wherein said spring is a wave-shaped spring comprised of a plurality of ridges and a plurality of valleys. 7. A dampener system, comprising: a housing having an interior surface;a deformable bladder positioned within said housing, said deformable bladder comprising a body comprised of a plurality of spaced-apart lobes, wherein said deformable bladder is adapted to be expandable in response to a fluid pressure within said deformable bladder;a split-ring member with unconnected ends positioned around said deformable bladder, wherein said split-ring member has a generally cylindrical configuration; anda spring positioned around said split-ring member, wherein said spring is adapted to engage said interior surface of said housing. 8. The system of claim 7, wherein said spring is a wave-shaped spring comprised of a plurality of ridges and a plurality of valleys. 9. A dampener system, comprising: a cylindrical housing having an interior surface and a cylindrical axis;an expandable liner positioned within said housing, wherein said expandable liner is adapted to radially expand in response to fluid pressure within said liner, wherein said liner has a fully expanded circumferential length within said housing when said liner is fully pressurized and a fully relaxed circumferential length within said housing when said liner is not pressurized, said fully relaxed circumferential length being greater than said fully expanded circumferential length, wherein said expandable liner comprises: a lobed outer surface comprised of a plurality of spaced-apart lobes; anda plurality of spaced-apart ridges, each of which is adapted to engage a portion of said interior surface of said housing, each of said ridges being positioned between a pair of said plurality of spaced-apart lobes, wherein said ridges, when said liner is fully pressurized within said housing, extend along a direction that is substantially parallel to said cylindrical axis of said housing. 10. The system of claim 9, wherein said interior surface of said housing comprises a plurality of spaced-apart recesses for channeling fluid flow around an exterior of said expandable liner. 11. A dampener system, comprising: a base;a housing connected to said base, said housing having an interior surface;an expandable liner positioned within said housing, said liner adapted to be expandable in response to fluid pressure within said liner;a piston/cylinder apparatus in fluid communication with said housing, said piston/cylinder apparatus having a movable piston that is adapted to move in response to fluid flowing from said housing to said piston/cylinder apparatus; anda torsion apparatus operatively coupled to said movable piston, said movable piston adapted to cause movement of said torsion apparatus in response to fluid flowing from the housing to the piston/cylinder apparatus, wherein said torsion apparatus is adapted to be moved from a first static position to a second position to dampen pulsations in said fluid, wherein said torsion apparatus comprises: a central shaft connected to said housing;an arm comprising a ring, said arm adapted to be moved by movement of said movable piston;a plurality of flexible elements disposed around said central shaft between said central shaft and said ring; andat least one mechanical stop between said flexible elements, said at least one mechanical stop being operatively coupled to said housing, wherein movement of said arm with respect to said central shaft causes deformation of said flexible elements. 12. The system of claim 11, wherein said interior surface of said housing comprises a plurality of spaced-apart recesses for channeling fluid flow around an exterior of said expandable liner. 13. The system of claim 11, wherein said expandable liner comprises a plurality of spaced-apart ridges, each of which is adapted to engage a portion of said interior surface of said housing. 14. The system of claim 11, wherein said expandable liner comprises an expandable body having a lobed outer surface. 15. The system of claim 14, wherein said expandable liner comprises a plurality of spaced-apart ridges, each of which is adapted to engage a portion of said interior surface of said housing. 16. The system of claim 12, wherein said expandable liner comprises a plurality of spaced-apart ridges, each of which is adapted to engage a portion of said interior surface of said housing. 17. The system of claim 16, wherein said expandable liner comprises an expandable body having a lobed outer surface. 18. The system of claim 17, wherein said expandable liner comprises a plurality of spaced-apart ridges, each of which is adapted to engage a portion of said interior surface of said housing. 19. A dampener system, comprising: a base,a housing connected to said base, said housing having an interior surface;an expandable liner positioned within said housing, the liner adapted to be expandable in response to fluid pressure within said liner; anda torsion apparatus that is adapted to be moved from a first static position to a second position in response to fluid flowing from said housing, wherein, in moving from said first static position to said second position, said torsion apparatus is adapted to dampen pulsations in said fluid, wherein said torsion apparatus comprises: a central shaft connected to said housing;an arm comprising a ring, said arm adapted to be moved by movement of said movable piston;a plurality of flexible elements disposed around said central shaft between said central shaft and said ring; andat least one mechanical stop between said flexible elements, said at least one mechanical stop being operatively coupled to said housing, wherein movement of said arm with respect to said central shaft causes deformation of said flexible elements. 20. The system of claim 19, wherein said interior surface of said housing comprises a plurality of spaced-apart recesses for channeling fluid flow around an exterior of said expandable liner. 21. The system of claim 19, wherein said expandable liner comprises a plurality of spaced-apart ridges, each of which is adapted to engage a portion of said interior surface of said housing. 22. The system of claim 19, wherein said expandable liner comprises an expandable body having a lobed outer surface. 23. The system of claim 22, wherein said expandable liner comprises a plurality of spaced-apart ridges, each of which is adapted to engage a portion of said interior surface of said housing.
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Sasaki Kenji,JPX ; Matsui Katsumi,JPX, Accumulator, process and apparatus for making the same.
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