[특허]Fluid control device with disc-type flow restrictor

Fluid control device with disc-type flow restrictor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F15D-001/02
출원번호	US-0095618 (1979-11-19)
발명자 / 주소	Seger Fritz O. (Fairview PA)
출원인 / 주소	Copes-Vulcan, Inc. (Lake City PA 02)
인용정보	피인용 횟수 : 31 인용 특허 : 0

초록 ▼

A fluid flow control device, particularly for use in connection with valves used in the control of fluids under high pressure, is disclosed. In the new structure, the valve trim includes a form of flow restrictor, which serves to limit flow velocity and which causes the fluid pressure to be reduced in a sufficient number of discrete stages to minimize noise and cavitation. The new flow restrictor comprises an axial stack of annular discs, each provided with a plurality of annular baffle ribs projecting from its opposite end faces. The annular baffle ribs on one side of the disc are slotted along a number of equally spaced radii, and the ribs on the opposite side of a disc are similarly slotted, but along radii offset from the first set of radii. When a series of these discs is assembled in a stack, downwardly facing ribs of one disc fit between upwardly facing ribs of a disc next below, providing a series of annular passages interconnected by radial slots. Each series of slots is offset and located between the next series and the preceding series, so that the fluid flow is continually divided and recombined for velocity reduction. In addition, the effective area of the radial slots is less than the area of the annular passages, such that the fluid is passed successively through a series of restricted orifices and expansion areas in passing through the valve.

대표청구항 ▼

In a fluid flow restrictor for incorporation in a valve or the like, and of the type comprising a series of axially aligned and stacked discs forming an annular restrictor and providing a multiple of series-parallel flow paths between the inside and outside of the assembled disc stack to effect pressure drop and energy dissipation, said series flow paths comprising radially disposed slot-like openings formed on said discs and said parallel flow paths comprising annular passage-forming means formed on said discs and providing fluid communication between sets of said series flow paths, the improvement characterized by (a) said discs being formed with a plurality of radially spaced annular baffle-forming ribs projecting axially from each face thereof, (b) adjacent ribs of each disc forming annular recesses of substantially greater radial width than the radial thickness of said ribs, (c) said discs having on each face thereof a plurality of radially-extending slots formed through said annular baffle-forming ribs, (d) said radially-extending slots being arranged and configured whereby the slots of each rib of a disc are radially aligned with the slots of each adjacent rib of said disc to form a plurality of radially-aligned slots extending from the inner perimeter of said disc to the outer perimeter of said disc, (e) the ribs on opposed faces of adjacent discs in the stack being offset whereby in the assembled stack the annular ribs of one disc are received in the annular recesses of the other adjacent disc, (f) the ribs and recesses being of substantially equal height whereby interfitting sets of ribs define annular flow passages, (g) said radially-disposed slots each including an open side, (h) each of said open sides being substantially sealed by the confronting face of an annular recess of an adjacent disc in the assembled stack, (i) said discs when assembled in said stack being so mutually oriented that the radially-aligned slots of the ribs on one side of a disc are offset from the radially-aligned slots of the interfitting ribs on the confronting side of the adjacent disc to interpose an annular rib of said adjacent disc between each pair of radially-aligned slots of said disc thereby providing said plurality of series-parallel flow paths between the inside and outside of the assembled disc stack.

이 특허를 인용한 특허 (31)

Robert H. Welker, Adjustable flow diffuser.
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Doran, Aaron C., Control valve trim cage having a plurality of anti-cavitation or noise abatement bars.
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Welker Robert H., Diaphragm regulator with removable diffuser.
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Welker Robert H., Flow diffuser.
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Stares,James Albert; Bogumil,Jamie Todd, Fluid flow regulation.
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Baumann Hans D. ; Schafbuch Paul J. ; Gethmann Douglas P. ; Anderson Michael M. ; Koester David J., Fluid pressure reduction device.
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Baumann Hans D. ; Schafbuch Paul J. ; Gethmann Douglas P. ; Anderson Michael M. ; Koester David J., Fluid pressure reduction device.
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Lebo Kim W. ; Samy Sekhar, Fluid pressure reduction device.
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Wears William Everett ; McCarty Michael W., Fluid pressure reduction device with linear flow characteristic.
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McCarty, Michael Wildie, Fluid pressure reduction devices.
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McCarty, Michael Wildie, Fluid pressure reduction devices.
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Shea,Allan K., Fluid trim apparatus and method.
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Hemme Kent R. ; Shea Allan K., High energy loss fluid control device.
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Hemme Kent R. ; Shea Allan K., High energy loss fluid control device.
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Gnanavelu, Abinesh; Evans, Finbarr William, Low shear trim.
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Minnock, Kevin Peter; Gnanavelu, Abinesh; McDonnell, Padraic Edward; McHugh, Edmund Peter; Mullin, Michael David; Elliott, Declan, Low shear trim.
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Minnock, Kevin Peter; Gnanavelu, Abinesh; Quin, David Francis Anthony, Low shear trim.
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Minnock, Kevin Peter; Gnanavelu, Abinesh; Quin, David Francis Anthony; McHugh, Edmund Peter; Gray, Conor James; Chambers, Stephen A.; Smyth, Raymond Nicholas, Low shear trim.
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Hayner Paul F. (52 Sentry La. Merrimack NH 03054), Method of manufacturing a fluid flow restrictor.
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Norikane, Yoshihiro; Tezuka, Shinji; Ohgaki, Masaru; Masuzawa, Masahiro; Miyazawa, Hideyuki, Microscopic flow passage structure, microscopic liquid droplet generating method, microscopic liquid droplet generating system, particles, and microcapsules.
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Haines, Bradford, Noise reducing fluid passageways for fluid control devices.
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Haines, Bradford, Noise reducing fluid passageways for fluid flow control devices.
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Haines, Bradford, Noise reducing fluid passageways for fluid flow control devices.
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Glenn, Alan Holton; Thurston, Kenneth Alden, Process for manufacturing valve trim assemblies.
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Tripp Dale S. (Coram NY) Beauman Ronald (Hicksville NY), Programmable pressure reducing apparatus for throttling fluids under high pressure.
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York,Matthew E., Quiet opening ball valve.
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Thurston, Kenneth A.; Glenn, Alan H., Stacked disk valve trim.
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Higuchi, Hiroyuki, Steam pressure reducing and conditioning system.
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Higuchi, Hiroyuki, Steam pressure reducing and conditioning valve.
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Higuchi, Hiroyuki, Steam pressure reducing and conditioning valve.
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McCarty Michael Wildie ; Long Ted Alan ; Gethmann Douglas Paul ; Schafbuch Paul Jay, Tortuous path fluid pressure reduction device.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Fluid control device with disc-type flow restrictor 원문보기

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Fluid control device with disc-type flow restrictor 원문보기

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