Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3722854 A
Publication typeGrant
Publication dateMar 27, 1973
Filing dateDec 1, 1971
Priority dateDec 1, 1971
Also published asCA990615A, CA990615A1
Publication numberUS 3722854 A, US 3722854A, US-A-3722854, US3722854 A, US3722854A
InventorsParola G
Original AssigneeGrove Valve & Regulator Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Valve with perforated ribbon silencing element
US 3722854 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent 1191 Parola 1451 Mar. 27, 1973 54 VALVE WITH PERFORATED RIBBON 2,642,254 6/1953 Armstrong .2251 118 x SILENCING ELEMENT 2,818,880 1/1958 Ratelband 3,513,864 5/l970 Self r. [751 Invent Mmaga' 3,514,074 5/1970 Self ..251/127 [73] Assignee: Grove Valve and Regulator Company, Oakland, Calif. Primary ExaminerHenry T. Klinksiek 1 h Filed: Dec. 7 Attorney Me v1n R St1d am [21] Appl. No.: 203,561 [57] ABSTRACT The disclosure is of a silent valve in which outlet flow [52] US. Cl. ..251/127, l37/625.28, 137/6253, is in a radial direction. Intermediate the valve closure 7 member and the outlet passage is an annular flow re- [Sl] IIILCI ..F16k 47/00 ta ding member formed by a goiled ribbon of per- Field 0| Search 3, 205, forated sheet material wrapped onto itself in several 137/62518r62531625-37;Isl/3266,67; layers with holes therethrough overlapping to form I I 138/41 communicating orifices. Preferably, the ribbon is sufficiently thick that the holes form expansion chambers 1 [56] Ree'ences Cited producing further energy loss. Holes across the width UNITED STATES PATENTS of the ribbon are uncovered progressively as the closure member moves toward open position. 871,775 11/1907 Blanchard et al ..251/l27 X 2,483,163 9/1949 Warren et a1 ..251/118 9 Claims, 13 Drawing Figures as is Patented March 27, 1973 6 Sheets-Sheet 1 48 t 44 as WHIL JElE-Efi- INVENTOR GARY o. PAROLA BY MMI K M A ORNEY Patented March 27, 1973 3,722,854

6 Sheets-Sheet 2 INVENTOR GARY D. PAROLA ATTORNEY Patented March 27, 1973 FIE-E- NNNNNN OR Patented March 27, 1973 6 Sheets-Sheet 4 O0 GO GO 00 6@ 0 00 O O O 6% 0 0O 0 00 0(0) 000 0G0 O00 O00 C000 0000 0000 0000 F 0 o 62 GO Flin -7 INVENTOR GARY D. PAROLA ATTORNEY Patented March 27, 1973 3,722,854

6 Sheets-Sheet 5 WWW LLLL

:EJDEIUE [I] [111:1 mmmmmmmmmmmmmc [15515535515555] DUDE] FILE-11- ATTORNEY VALVE WITH PERFORATED RIBBON SILENCING ELEMENT BACKGROUND OF THE INVENTION This invention relates to a silent valve, and more particularly, to a valve provided with means for greatly retarding the velocity of fluid flow through it when the valve is opened.

Fluid flowing at high velocity, as through a valve, may generate an objectionably high noise level. This may be particularly objectionable in certain installations, as for example, in gas systems on naval vessels, such as submarines. In addition, high velocity fluid flow through the valve is likely to cause erosion, particularly if vapor or oil droplets are entrained in the fluid stream.

OBJECTS OF THE INVENTION It is an object of this invention to provide a valve which is capable of silent operation. 4

It is an object of this invention to provide a valve structure with means for greatly retarding the velocity of fluid flow therethrough.

It is a further object of this invention to provide a device for retarding fluid flow, which has progressively increasing flow capacity as the valve moves toward full BRIEF SUMMARY OF THE INVENTION In one embodiment of this invention, a central inlet flow port is closed by an axially operated valve closure plug engaging a seat. A valve operating stem is moved in opposite directions to open and close the valve. One or more outlet passages are located radially outward of the valve closure plug in spaced relationship thereto, and interposed between the plug and the outlet passage is an annular, flow retarding member in which the plug is guided.

The flow retarding member comprises a coiled ribbon of sheet material wrapped into a plurality of layers. The ribbon has openings over its surface with the dimensions across the-openings being greater than the spaces between them to insure overlapping communication. Of course, there are more openings in the outer layers by reason of the greater circumferences thereof, to provide progressively increasing flow paths from inside to outside of the coiled ribbon. -If the ribbon is thick enough, each hole becomes an expansion chamber. Hence, there are energy losses through friction, turning of the flow stream expansion through progressively increasing flow paths, and repetitive expansion in the individual expansion chambers. The resultant high energy loss greatly reduces the average velocity and, hence, the sound level. The valve plug may be guided in the coiled ribbon itself, or the ribbon may be wound onto a perforated guide sleeve. In any through the sleeve in radially outward expanding flowpaths.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial vertical section view of a valve embodying features of this invention;

FIG. 2 is a horizontal section view of a'guide sleeve and perforated ribbon silencer comprising features of this invention;

FIGS. 3 and 4 are partial vertical section views of other valve embodiments incorporating features of this invention;

FIG. 5 is a plan view of a perforated ribbon comprising a feature of this invention;

FIG. 6 is a vertical section view of the perforated ribbon of FIG. 5 wrapped on a valve guide sleeve;

FIG. 7 is a plan view of another ribbon embodiment;

FIG. 8 is a horizontal section view of the ribbon of 7 FIG. 7 wrapped on a guide sleeve;

FIGS. 9 and 10 are plan views of other ribbon embodiments;

FIG. 11 illustrates a method of applying perforated ribbon to a guide sleeve; 7

FIG. 12 is a vertical section view of another valve embodiment, incorporating features of this invention;


FIG. 13 is a partial section view of a variant of FIG.

DESCRIPTION OF PREFERRED EMBODIMENT The Embodiment of FIGS. 1 and 2 Referring now more particularly to FIGS. 1 and 2, the silencing device 10 of this invention may be incorporated in a valve body 12 having inlet and outlet passages 14 and 16 bored therein. A vertical bore 18 brings the inlet passageway into communication with a counterbore 20 in which is received a valve seat 22 of a suitable plastic, with an O-ring 24 sealing around the counterbore 20. A valve closure member 26 is slidably received in a valve guide sleeve 28 with suitable sealing means such as an O-ring 29, sealing around the closure member 26. The closure member 26 may be moved upward from the closed position in which it is shown by movement of a valve stem 30 by any suitable means (not shown). In the closed position shown, the annular end 32 of the closure member 26 firmly engages the valve seat 22 to seal off the inlet passage l4, 18.

The guide sleeve 28 has a series of flow openings 34 around its circumference and extending along a portion of its length corresponding approximately to the diameter of the outlet passage 16. Grooves 36 around the outer surface of the guide sleeve 28 connect the openings 34 for better distribution of pressure around the circumference of the sleeve 28.

Carried on the bottom 38 of a large bore 39 is the silencer 10, comprising a coil of perforated ribbon 40 with a plurality of rows of holes 42 which are large enough to insure that those in successive wraps of the ribbon coil will be in communication, thus providing a series of restricted orifices intermediate a series of expansion chambers, the sizes of which are determined by the diameter of the holes and the thickness of the ribbon. The repetitive fluid expansion provided by the restricted orifices and the expansion chambers greatly retards flow and causes energy loss for silent operation.

A retainer sleeve 44 is secured above the ribbon by any suitable means (not shown) to hold the ribbon coil 10 in place. O-rings 46 and 48 provide a seal between the retainer ring 44 and the large bore 39 and between retainer ring and the valve guide sleeve 28.

As shown in FIG. 2, the holes 42 in the ribbon are of substantially the same size and are formed in spaced rows along the length of the ribbon. However, when viewed in any vertical section as in FIG. 1, they appear to be of varying sizes because any particular cross-section will intersect the holes at different chords thereof.

The Embodiment of FIG. 3

In FIG. 3, the silencer coil 10a is of a shorter axial length and interposed between it and the retainer ring 44 is a full flow ring 50 having large capacity openings 52 therethrough. Hence, as the valve closure 26 moves axially away from the seat 22, it progressively exposes more and more openings 34 of the guide sleeve and, hence, more and more openings 42a in the perforated ribbon 40a. Then, after the initial opening of the valve 26, with the sudden rush of high pressure fluid retarded and silenced by the perforated ribbon coil 10a, the valve may be opened to full flow capacity through the large openings 50in the full flow ring 50.

The Embodiment of FIG. 4

In FIG. 4, the perforated ribbon silencer coil 10 is disposed in a valve body 12a similar to that shown in FIG. 3, but having a tubular valve closure 54 through which fluid flows from an inlet passageway (not shown) to the openings 34 in the valve guide sleeve 28. In this embodiment, the perforated ribbon coil 10 extends completely across the length of the outlet passage 16 as in FIG. 1.

The Embodiment of FIGS. 5 & 6

In FIGS. 5 and 6, the perforated ribbon 56 has holes 58 therein which are arranged in staggered rows. Hence, with the ribbon coiled, a hole 58 in one row may actually overlap two holes of an adjacent, staggered row so that there is even greater expansion, with correspondingly greater energy loss.

The Embodiment of FIGS. 7 and 8 In the perforated ribbon 60 of FIG. 7, there are provided a number of elongated slots 62 in at least some of the rows, in addition to the holes 64, in order to provide greater expansion and distribution of pressure around the circumference of the ribbon in various layers thereof. The slots 62 are preferably formed of lengths equal to the circumference of the wrapped ribbon at the particular layer in which it will be disposed in order to provide pressure distribution completely around the silencer coil.

The Embodiment of FIGS. 9 and 10 In FIGS. 9 and 10, there are shown other perforated ribbon configurations 66 and 68, other than those with circular holes as previously described. For example, the

ribbon may comprise a series of slots of rectangular or other configurations as in FIG. 9, or may simply be formed with square holes 72 or of screening or the like as shown in FIG. 10.

The Embodiment of FIG. 11

Whatever ribbon configuration is selected, the ribbon may be applied to the guide sleeve 28 as shown in FIG. 11 by spot welding one end 74 of the ribbon 76 to a tapered groove 78 cut along the length of the guide sleeve 28 and thereafter by simply wrapping the ribbon 76 around in a plurality of layers.

The Embodiment of FIG. 12

In FIG. 12, the silencing device 80 is applied to a flexible tube type valve 82 comprising a cylindrical body tube 84 with annular closure plates 86 and 88 clamped thereto by means of studs 90 engaging through inlet and outlet flange plates 92 and 94. 0- rings 96 provide a seal between the closure plates 86, 88 and the flange plates 92, 94 and another O-ring 98 is provided to seal between the inlet closure plate 86 and the body tube 84. Carried within the valve body is a core tube 100 having inlet and outlet flow slots 102 and 104 with a barrier 106 being disposed across the core l00 intermediate the two circumferential rows of slots.

'upstream pressure allowing the tube to expand and enable flow around the barrier 106 and into the outlet slots 104.

In accordance with this invention, an annular recess 118 is formed around the core of a width slightly greater than the length of the outlet slots. A perforated ribbon 120 is wrapped around the recessed circumference of the core tube to cover the outlet slots and form, as in the other embodiments herein described, a coiled silencer 80 having a series of restrictive orifices and expansion chambers.

The Embodiment of FIG. 13

In accordance with FIG. 13, a silencing coil 124 with staggered holes 126 therethrough may be mounted on the core 128 with the upstream end seated in a recess 130, which is formed around the inside of the barrier 132. An overlapping portion 134 of the barrier 132 covers holes 126 adjacent the upstream end of the coil and the flexible tube 108 covers the downstream end to reduce the effective length of the silencing coil which is exposed to flow around the barrier. By reason of the staggered disposition of adjacent rows of holes the flow can, in effect, radiate outward to exit internally over the full length of the coil. Hence, there is an expanding flow capacity from the outer diameter to the inner diameter of the silencing coil 124. A stiffener ring 136 is provided at the downstream end of the core 128.

While this invention has been described in conjunction with preferred embodiments thereof, it is obvious that modifications and changes may be made by those skilled in the art, without departing from the spirit and scope of the invention.

What is claimed is:

l. A valve structure comprising:

a body having a centrally disposed inlet port,

an outlet port,

a flow passageway in said body from said inlet port toward said outlet port,

at least a portion of said passageway extending radially,

an annular flow retarding member in said portion of the passageway,

a valve closure member operable to expose said flow retarding member progressively across its width for flow therethrough,

said flow retarding member comprising:

a sleeve formed of a plurality of layers of sheet material,

a multiplicity of through openings in each layer of said sleeve, the dimensions across said openings being greater than the spacing between them whereby openings in adjacent layers overlap.

2. The valve structure defined by claim 1 wherein:

at least one of said layers is relatively thick whereby each through opening therein functions as an expansion chamber for fluid entering the orifice formed with an opening itoverlaps.

3. The valve structure defined by claim 1 wherein:

said flow retarding sleeve-is formed by a coiled ribbon of perforated sheet material.

4. The valve structure defined by claim 3 wherein:

said sheet material is screening.

5. The valve structure defined by claim 1 including:

a flow distributing slot in at least one of said layers extending substantially around the circumference thereof.

6. The valve structure defined by claim 1 wherein:

said closure member is a valve plug movable axially to cover and uncover said inlet port, and including:

a cylindrical guide sleeve on which said flow retarding sleeve is carried,

said guide sleeve having a plurality of holes therethrough to provide flow paths from within said guide sleeve outward through the through openings in said flow retarding sleeve.

7. The valve structure defined by claim 1 wherein:

said flow retarding sleeve is adjacent said inlet port and extends along less than the full stroke of valve plug movement, and including:

means providing high capacity flow after said valve plug moves beyond said flow retarding sleeve.

8. The valve structure defined by claim 1 wherein: said closure member is a flexible sleeve and including:

a barrier between said inlet and outlet ports normally snugly embraced by said flexible sleeve, and

said flow retarding sleeve is disposed downstream of said barrier.

9. The valve structure defined by claim 1 including: means around one end of said barrier and blocking flow into through openings adjacent said one end.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3802537 *Feb 16, 1972Apr 9, 1974Bolt Beranek & NewmanApparatus for fluid flow precision pressure-reduction, and attenuation and diffusion of jet-produced sound without substantial sound-regeneration in jet-port arrays, including valves and the like
US3812871 *Mar 2, 1973May 28, 1974Glenfield & Kennedy LtdHydraulic installation
US3917221 *Aug 16, 1974Nov 4, 1975Tokico LtdHigh-pressure-drop valve
US3921668 *Dec 10, 1973Nov 25, 1975Self Richard EHigh energy loss rolled strip fluid control device
US3954124 *Dec 5, 1973May 4, 1976Self Richard EHigh energy loss nested sleeve fluid control device
US4108210 *Sep 2, 1976Aug 22, 1978Fisher Controls CompanyControl valve trim assembly
US4161996 *Jan 23, 1978Jul 24, 1979Atlas Copco AktiebolagExhaust muffler
US4183375 *Dec 1, 1977Jan 15, 1980The Bendix CorporationMulti-path valve structure having extended life
US4185664 *Apr 17, 1978Jan 29, 1980Dresser Industries, Inc.Low noise fluid pressure reducer
US4249574 *Mar 9, 1978Feb 10, 1981Copes-VulcanOrifice trim and backpressure plate for high pressure valves
US4258750 *Nov 13, 1978Mar 31, 1981Copes-Vulcan, Inc.Labyrinth trim valve
US4456033 *Oct 9, 1981Jun 26, 1984Vacco IndustriesPerforated sheet stock flow restrictor
US4739795 *Jul 18, 1986Apr 26, 1988Sundstrand CorporationFlow control valve
US4762146 *Sep 22, 1986Aug 9, 1988Sundstrand CorporationFlow control valve
US5070909 *Jun 11, 1990Dec 10, 1991Davenport Robert GLow recovery rotary control valve
US5769122 *Feb 4, 1997Jun 23, 1998Fisher Controls International, Inc.Fluid pressure reduction device
US5819803 *Feb 16, 1996Oct 13, 1998Lebo; Kim W.Fluid pressure reduction device
US5941281 *Jun 18, 1998Aug 24, 1999Fisher Controls International, Inc.Fluid pressure reduction device
US6026859 *Jan 25, 1999Feb 22, 2000Fisher Controls International, Inc.Fluid pressure reduction device with linear flow characteristic
US6095196 *May 18, 1999Aug 1, 2000Fisher Controls International, Inc.Tortuous path fluid pressure reduction device
US6244297Mar 23, 1999Jun 12, 2001Fisher Controls International, Inc.Fluid pressure reduction device
US6390132Dec 7, 2000May 21, 2002Caterpillar Inc.Fluid stream pulse damper
US6637452 *Oct 8, 2002Oct 28, 2003Fisher Controls International, Inc.Valve with self-cleaning trim
US6715505Jan 4, 2002Apr 6, 2004Dresser, Inc.Steam pressure reducing and conditioning valve
US6742773Jan 4, 2002Jun 1, 2004Dresser, Inc.Steam pressure reducing and conditioning valve
US6758232Jan 4, 2002Jul 6, 2004Dresser, Inc.Steam pressure reducing and conditioning system
US7104281Aug 15, 2003Sep 12, 2006Dresser, Inc.Fluid flow regulation
US7320340Mar 26, 2004Jan 22, 2008Fisher Controls International LlcFluid pressure reduction devices
US7438131 *Aug 4, 2005Oct 21, 2008Baker Hughes IncorporatedExpandable injector pipe
US7690400Oct 13, 2005Apr 6, 2010Flowserve Management CompanyNoise reducing fluid passageways for fluid control devices
US7802592Apr 18, 2006Sep 28, 2010Fisher Controls International, LlcFluid pressure reduction devices
US7886772Mar 24, 2010Feb 15, 2011Flowserve Management CompanyNoise reducing fluid passageways for fluid flow control devices
US8033300Aug 26, 2010Oct 11, 2011Fisher Controls International, LlcFluid pressure reduction devices
US8434525Jan 13, 2011May 7, 2013Flowserve Management CompanyNoise reducing fluid passageways for fluid flow control devices
US8950431 *Mar 26, 2010Feb 10, 2015System D&D Co., Ltd.Fluid flow control device
US9010371 *Nov 29, 2012Apr 21, 2015Cla-Val Co.Anti-cavitation valve seat
US20050034770 *Aug 15, 2003Feb 17, 2005Stares James AlbertFluid flow regulation
US20050211321 *Mar 26, 2004Sep 29, 2005Bush Donald RFluid pressure reduction devices
US20060027370 *Aug 4, 2005Feb 9, 2006Weinrich John BExpandable injector pipe
US20100175768 *Mar 24, 2010Jul 15, 2010Flowserve Management CompanyNoise reducing fluid passageways for fluid flow control devices
US20100319799 *Aug 26, 2010Dec 23, 2010Mccarty Michael WildieFluid pressure reduction devices
US20110100490 *Jan 13, 2011May 5, 2011Flowserve Management CompanyNoise reducing fluid passageways for fluid flow control devices
US20120273065 *Mar 26, 2010Nov 1, 2012Young Bum KimFluid flow control device
US20130153808 *Nov 29, 2012Jun 20, 2013Cla-Val Co.Anti-cavitation valve seat
USRE31570 *Feb 5, 1982May 1, 1984Tylan CorporationFluid flowmeter
DE2457559A1 *Dec 5, 1974Jun 19, 1975Richard Ernst SelfHochdruckdrosselvorrichtung
DE2514879A1 *Apr 5, 1975Oct 14, 1976Holter Gmbh & CoPressure reducing valve for steam, gas or liquid - permits regulation without high noise level and valve damage
DE2622041A1 *May 14, 1976Mar 17, 1977Dresser IndDurchflussregelventil
DE3025284A1 *Jul 4, 1980Jul 29, 1982Teves Gmbh AlfredFluid throttle valve with control plunger - has plunger enclosed by fluid deflector at radial drilling
EP0167252A1 *May 16, 1985Jan 8, 1986Control Components Inc.Valves and components therefor
EP1862386A3 *May 7, 2007Jun 17, 2009Howaldtswerke-Deutsche Werft GmbHSubmarine
WO2002066875A1 *Jan 23, 2002Aug 29, 2002Fisher Controls International LlcValve with fluid pressure reduction device with integral guides
WO2005103542A1 *Feb 11, 2005Nov 3, 2005Fisher Controls International LlcFluid pressure reduction devices
U.S. Classification251/127, 181/237, 137/625.28, 138/42, 137/625.3
International ClassificationF16K47/08, F16K47/00
Cooperative ClassificationF16K47/08
European ClassificationF16K47/08