초록 ▼

In accordance with the present invention, there is provided is a fluid control valve configured to attenuate acoustic resonance generated by a fluid flow. The fluid control valve includes a valve body defining a fluid passageway. A pair of seat rings are coupled to the valve body, with each seat rin

In accordance with the present invention, there is provided is a fluid control valve configured to attenuate acoustic resonance generated by a fluid flow. The fluid control valve includes a valve body defining a fluid passageway. A pair of seat rings are coupled to the valve body, with each seat ring defining an opening disposed about the fluid passageway. Each seat ring includes a plurality of vortex generators disposed about the radial periphery thereof for generating streamwise vorticies which suppress acoustic resonance.

대표청구항 ▼

1. A valve including a valve body having a fluid passageway extending therethrough, and at least one seat ring which is positioned within the fluid passageway and comprises: an annular body including an inner annular face defining a seat ring opening, the annular body being cooperatively engaged to

1. A valve including a valve body having a fluid passageway extending therethrough, and at least one seat ring which is positioned within the fluid passageway and comprises: an annular body including an inner annular face defining a seat ring opening, the annular body being cooperatively engaged to the valve body such that the seat ring opening is substantially aligned with the fluid passageway; andat least one vortex generator extending axially along the annular face only from an inlet end of the annular body and protruding radially inward from the annular face of the annular body into the seat ring opening, the at least one vortex generator being configured to induce a vortex within fluid flowing through the seat ring opening;a majority of the annular face at the inlet end of the annular body being uncovered by the at least one vortex generator and exposed to the seat ring opening. 2. The valve of claim 1, wherein the vortex generators are sized and configured to generate co-rotating vortices within fluid flowing through the seat ring opening. 3. The valve of claim 1, wherein the vortex generators are sized and configured to generate contra-rotating vortices within fluid flowing through the seat ring opening. 4. The valve of claim 1, wherein: the annular body includes opposed first and second end surfaces, the inner annular face extending between the first and second end surfaces; andthe at least one vortex generator extends to only one of the first and second end surfaces of the annular body. 5. The valve of claim 1, wherein the at least one vortex generator comprises a plurality of vortex generators integrated into the annular face. 6. The valve of claim 5, wherein the vortex generators are disposed in equidistantly spaced relation to each other along the annular face. 7. The valve of claim 5, wherein the vortex generators extend into the annular face of the annular body. 8. The valve of claim 7, wherein: the seat ring defines opposed first and second end surfaces, and the seat ring opening extends between the first and second end surfaces along an axis;the vortex generators each extend into the annular face so as to be of a prescribed depth;the vortex generators each extend along and in spaced relation to the axis so as to be of a prescribed length; andthe vortex generators are each shaped such that the depth thereof varies along the length thereof. 9. The valve of claim 8, wherein each of the vortex generators extends to the first end surface, but terminates inwardly relative to the second end surface. 10. The valve of claim 1, wherein: the seat ring defines opposed first and second end surfaces, and the seat ring opening extends between the first and second end surfaces along an axis;the vortex generators each protrude radially from the annular face toward the axis so as to be of a prescribed height;the vortex generators each extend along and in spaced relation to the axis so as to be of a prescribed length; andthe vortex generators are each shaped such that the height thereof varies along the length thereof. 11. The valve of claim 10, wherein each of the vortex generators comprises an elongate rib having opposed, substantially planar first and second surfaces which extend in spaced, generally parallel relation to each other, and a third surface which extends between the first and second surfaces at a prescribed angle relative to the annular face. 12. The valve of claim 10, wherein each of the vortex generators is integrally formed with the annular body. 13. The valve of claim 10, wherein each of the vortex generators extends to the first end surface, but terminates inwardly relative to the second end surface. 14. The valve of claim 13, wherein each of the vortex generators is of a generally triangular cross-sectional configuration including a pair of opposed surfaces that intersect along an apex. 15. In a valve including a valve body having a fluid passageway extending therethrough and a valve plate moveable between open and closed positions relative to the valve body to control fluid flow through the fluid passageway, the improvement comprising a seat ring which includes: an annular body including an inner annular face defining a seat ring opening which is aligned with the fluid passageway; anda plurality of vortex generators integrated into the annular face adjacent a first end of the annular body and protruding from the annular face of the annular body into the seat ring opening, the at least one vortex generator being configured to induce a vortex within fluid flowing through the seat ring opening;a majority of the annular face at the first end of the annular body being uncovered by the at least one vortex generator and exposed to the seat ring opening. 16. The valve of claim 15, wherein the vortex generators are sized and configured to generate co-rotating vortices within fluid flowing through the seat ring opening. 17. The valve of claim 15, wherein the vortex generators are sized and configured to generate contra-rotating vortices within fluid flowing through the seat ring opening. 18. The valve of claim 15, wherein the vortex generators protrude from the annular face of the annular body into the seat ring opening. 19. The valve of claim 15, wherein the vortex generators extend into the annular face of the annular body. 20. The valve of claim 15, wherein: the annular body includes opposed first and second end surfaces, the inner annular face extending between the first and second end surfaces; andthe plurality of vortex generators each extend to only one of the first and second end surfaces of the annular body.