Fisher Controls International LLC

Daniel James Eilers

Allen Carl Fagerlund

Michael Wildie McCarty

William Everett Wears

Jason Gene Olberding

Daniel Martin Adams

Kimball Ralph Barron

James Leroy Gossett

Kyle Thomas McNulty

Michael Allen Wyatt

Patrick L O'Shea

Thomas Nelson Gabriel

Raymond W Micheel

Nathan Samuel McCormick

Daniel M Adams

Kyle Thomas Mcnulty

A fluid flow control device include a valve body including an inlet, an outlet, and a passageway extending between the inlet and the outlet. A valve trim is at least partially disposed in the passageway of the valve body. The valve trim includes a restrictor having a wall and a plurality of passages extending through the wall. A diffuser is coupled to the restrictor and including a porous body. The porous body is adjacent to the plurality of passages of the restrictor.

Valve trim

A valve trim for use in a fluid flow control device. The valve trim includes a cage body defined by an outer cage wall and an inner cage wall coupled to the outer cage wall, the outer cage wall spaced radially outward of the inner cage wall. The valve trim also includes a plurality of first flow characterizing passages formed in the outer cage wall, and a plurality of second flow characterizing passages formed in the inner cage wall. The cage body is at least partially made of an erosion-resistant material.

Erosion-resistant valve trim

Rotary ball valves with noise attenuators are disclosed herein. An example rotary ball valve includes a valve body defining a passageway between an inlet and an outlet, a ring-shaped seal in the passageway, a closure member in the passageway, the closure member rotatable in the passageway relative to the seal, and a noise attenuator coupled to the closure member in the passageway. The closure member and the noise attenuator are rotatable between a closed position, a fully open position, and a plurality of intermediate positions between the closed position and the fully open position. The noise attenuator includes walls that are spaced apart from each other. The walls at least partially form a plurality of channels. The channels are aligned with the passageway when the noise attenuator is in the fully open position. The walls include a first wall that is curved such that such that when the noise attenuator is in a first intermediate position, an edge of the first wall is aligned with the seal.

Rotary ball valves with noise attenuators

An attenuator dome for a ball valve includes a body defining an upstream surface and a downstream surface. The body has first and second attenuation sections. The first attenuation section has a single stage with a first plurality of passages extending from the upstream surface to the downstream surface. The second attenuation section has a first stage with a second plurality of passages extending from the upstream surface to a first plenum formed inside the body and a second stage with a third plurality of passages extending from the first plenum to the downstream surface. The single stage of the first attenuation section has first flow area percentage, the first stage of the second attenuation section has a second flow area percentage less than the first flow area percentage, and the second stage has a third flow area percentage greater than the second flow area percentage.

Attenuator dome for a ball valve

An apparatus for noise reduction in valves is disclosed. A disclosed example valve includes a valve body including a fluid passageway, and a cage located in the fluid passageway, the cage including a wall having openings, a fluid to flow from an inner surface of the wall to an outer surface of the wall through the openings, each of the openings including respective ribs, the ribs to follow a helical path along a length of each opening to cause rotation of the fluid flowing through the openings.

Apparatus for noise reduction in valves

Methods, apparatus, systems and articles of manufacture for valve trim apparatus for use with control valves are disclosed. An example valve trim apparatus for use with a fluid valve includes a cage positioned in a fluid flow passageway of a valve body, the cage including a primary valve seat and a secondary valve seat. The valve trim apparatus includes a valve plug slidably positioned within the cage, the valve plug including a primary sealing surface to sealingly engage the primary valve seat and a secondary sealing surface to sealingly engage the secondary valve seat, the primary sealing surface adjacent to a first end of the valve plug and the secondary sealing surface spaced away from the primary sealing surface along a longitudinal axis of the valve plug toward a second end of the valve plug.

Valve trim apparatus for use with control valves

A diffuser has a cylindrical wall and an arcuate end wall located at an end of the cylindrical wall. The cylindrical wall has a first lattice structure formed of a first plurality of triply periodic surfaces that are periodic in cylindrical coordinates, the first lattice structure having a plurality of passages that extend between an inner surface of the cylindrical wall and an outer surface of the cylindrical wall. The arcuate end wall has a second lattice structure formed of a second plurality of triply periodic surfaces that are periodic in spherical coordinates, the second lattice structure having a plurality of passages that extend between an inner surface of the arcuate end wall and an outer surface of the arcuate end wall.

Diffuser

A fluid valve includes a valve body having a fluid inlet and a fluid outlet. A fluid passageway connects the fluid inlet and the fluid outlet. A trim assembly is located within the fluid passageway and the trim assembly cooperates with a control member to control fluid flow through the fluid passageway. The trim assembly includes a cage and a cage retainer. The cage retainer is located downstream of the cage and the cage retainer and the cage are aligned longitudinally within the fluid passageway. The cage retainer includes a side branch resonator array.

Trim assembly having a side branch resonator array and fluid control valve comprising same

A control valve has a body having an inlet and outlet, a valve seat between the inlet and outlet, a valve plug, and a cage adjacent the valve seat to provide guidance for the valve plug. The valve plug is movable between a closed position, where the valve plug sealingly engages the valve seat, and an open position, where the valve plug is spaced away from the valve seat. The cage has a solid, unitary circumferential wall having inner and outer surfaces and a plurality of passages formed through the wall. Each passage extends between the inner and outer surfaces and follows an arcuate, non-linear path from the inner surface to the outer surface.

Aerodynamic noise reduction cage

A flow stabilizer adapted to be disposed in an outlet passage of a rotary valve includes a main body having an axis, a first end, and a second end. A first shell is disposed at least partially within the main body, and the first shell includes an axis, a first end, and a second end. A second shell is disposed at least partially within the main body and at least partially within the first shell, and the second shell includes an axis, a first end, and a second end. The axis of the first shell is angled relative to the axis of the main body and the axis of the second shell is angled relative to axis of the main body.

Flow stabilizer for a control valve

A control valve has a trim assembly to condition the flow of fluid through the control valve and, in some applications, to provide guidance for a valve plug. The trim assembly has a lattice structure formed of a plurality of triply periodic surfaces that form a plurality of passages that extend between an inner surface of the circumferential wall and an outer surface of the circumferential wall.

Control valve trim assembly

A ball valve may include a control element including a perforated screen disposed within the control element and spaced apart from an inner surface of the control element to form an annular space and a plurality of chambers disposed within the control element. When fluid flows through the control element, sound waves pass through the perforated screen and are reflected back by the plurality of chambers to disrupt other sound waves, thereby reducing fluid noise in the rotary valve.

Ball valve with modal silencer

A fluid valve includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. A valve seat is disposed within the fluid passageway. A fluid control member is movably disposed within the fluid passageway, the fluid control member cooperating with a trim assembly to control fluid flow through the fluid passageway. The trim assembly includes a cage having a plurality of openings that characterize fluid flowing through the cage and a plurality of chevrons surrounding each opening that suppress noise generated by the plurality of openings.

Noise reducing diffuser trim with chevrons

Cage apparatus having fluid passageways to affect flow characteristics of valves are disclosed. An example valve cage includes clustered fluid flow passages. Each fluid flow passage has a first portion connected to a second portion. The first portion tapers towards the second portion and the second portion tapers towards the first portion. The clustered fluid flow passages include a first row and an adjacent second row. The first row and the second row are oriented at a first angle relative an axis of the valve cage to extend along a helically-shaped path on the valve cage.

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Marshalltown, IA, United States of America

Daniel James Eilers