Choke valve with flow-impending recesses
AssigneeCameron Internatinoal Corporation
InventorDeclan Elliott
Life of this patent
Estimating the term…
Abstract
Disclosed is a device that includes a choke valve. The choke valve may include a generally tubular throttling member having a sealing shoulder disposed in an inner volume of the throttling member, a plurality of openings configured to flow a fluid between the inner volume of the throttling member and an outer volume of the throttling member, and a flow-impeding recess disposed between the sealing should and the plurality of openings in the inner volume of the throttling member. The choke valve may also include a valve member disposed at least partially in the inner volume of the throttling member.
Claims20
An apparatus, comprising:
- a choke valve, comprising:
- a first choke valve portion;
- a second choke valve portion, wherein the first and second choke valve portions are disposed one about another to define an annular gap, and the choke valve is configured to cause a relative axial movement between the first and second choke valve portions;
- an annular sealing shoulder;
- a plurality of radial openings;
- and
- a plurality of flow-impeding recesses disposed between the annular sealing shoulder and the plurality of radial openings in the annular gap.
An apparatus, comprising:
- a choke valve, comprising:
- a first choke valve portion;
- a second choke valve portion, wherein the first and second choke valve portions are disposed one about another to define an annular gap, and the choke valve is configured to cause a relative axial movement between the first and second choke valve portions;
- an annular sealing shoulder;
- a plurality of radial openings;
- and
- a plurality of flow-impeding recesses disposed between the annular sealing shoulder and the plurality of radial openings in the annular gap, wherein the plurality of flow-impeding recesses comprises a plurality of annular grooves disposed about a central axis, and each annular groove of the plurality of annular grooves is separated from an adjacent annular groove of the plurality of annular grooves by an intermediate annular protrusion disposed about the central axis.
An apparatus, comprising:
- a choke valve, comprising:
- a first choke valve portion;
- a second choke valve portion, wherein the first and second choke valve portions are disposed one about another to define an annular gap between an inner annular surface and an outer annular surface, and the choke valve is configured to cause a relative axial movement between the first and second choke valve portions;
- an annular sealing shoulder;
- a plurality of radial openings;
- and
- a plurality of flow-impeding recesses disposed between the annular sealing shoulder and the plurality of radial openings in the annular gap at least on the outer annular surface.
Dependencies are inferred from the claim text.