WO1999023402A1 - Robinet d'arret a membrane double - Google Patents

Robinet d'arret a membrane double Download PDF

Info

Publication number
WO1999023402A1
WO1999023402A1 PCT/US1998/023304 US9823304W WO9923402A1 WO 1999023402 A1 WO1999023402 A1 WO 1999023402A1 US 9823304 W US9823304 W US 9823304W WO 9923402 A1 WO9923402 A1 WO 9923402A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
inlet port
housing
outlet port
flow
Prior art date
Application number
PCT/US1998/023304
Other languages
English (en)
Original Assignee
Babson Bros. Co.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Babson Bros. Co. filed Critical Babson Bros. Co.
Priority to AU13753/99A priority Critical patent/AU1375399A/en
Publication of WO1999023402A1 publication Critical patent/WO1999023402A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/126—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on a rib perpendicular to the fluid line

Definitions

  • This invention relates to valves and, more particularly, to pneumatically actuated
  • valves it is common for such valves to require a multi-piece valve housing and
  • an additional actuator such as a spring, to actuate the valve element between its open and closed
  • the multi-piece valve housing tends to have pockets that trap bacteria, thereby making it
  • valve housings and additional components such as a spring, increase the cost of manufacturing the valve.
  • Another approach is to use the type of valve commonly referred to as a pinch tube
  • valve or a sleeve diaphragm valve which allows an in-line or axial milk flow path that does not
  • valves typically require high pressure air sources to overcome the rigidity of the tube or sleeve
  • valves typically require a relatively stiff sleeve diaphragm that
  • a valve in accordance with the present invention, includes a valve housing having an
  • the web has a pair of
  • the valve further includes a pair of oppositely facing, concave sealing surfaces.
  • the valve further includes a pair of oppositely facing, concave sealing surfaces.
  • the inlet port and the outlet port are aligned along a longitudinal flow
  • the web is a wing-shaped web that extends transverse to the
  • each of the sealing surfaces is spherical and each of the
  • diaphragms has a preformed spherical mating surface to engage one of the sealing surfaces.
  • a further feature is the provision of a First concave conical guide surface extending
  • the valve is operated using only ambient or atmospheric pressure and the milking
  • valve has an axial flow path that is characterized by the absence of discontinuities
  • valve requires only
  • Fig. 1 is a perspective view of a flow control valve embodying the present invention
  • Fig. 2 is an exploded perspective view of the valve shown in Fig. 1;
  • Fig. 3 is an enlarged longitudinal sectional view of the valve shown in Fig. 1 taken
  • Fig. 4 is an enlarged transverse sectional view of the valve shown in Fig. 1 taken
  • Fig. 5 is a plan view showing the internal configuration of the valve housing of the
  • a pneumatically actuated vacuum shut-off valve 10, shown in Figs. 1 and 2, includes
  • valve housing 11 a valve housing 11 , a pair of resilient diaphragms 12, 13 and a pair of covers 14, 15.
  • the housing 1 1 includes a cylindrical inlet port 18 and a cylindrical outlet port 20 which are
  • valve 10 In operation, the valve
  • valve 10 to the milker system
  • valve 10 is capable of operation in any
  • the web 28 is defined by a pair of oppositely facing
  • each of the surfaces 36, 38 is a pair of oppositely facing outlet guide surfaces 44 and 46.
  • each of the surfaces 36, 38 is a pair of oppositely facing outlet guide surfaces 44 and 46.
  • each of the surfaces 36, 38 has a spherical contour. Accordingly, as best seen in Fig. 4, each of the surfaces 36, 38 has a
  • each of the surfaces 36, 38 may have a
  • the inlet guide surfaces 40 and 42 extend between the inlet port 18 and each of the
  • the outlet guide surfaces 44 and 46 extend between the
  • the inlet guide surfaces 40 and 42 terminate at a leading edge
  • edge 48 positioned adjacent the inlet port 18 to divide the flow path from the inlet port 18 into two
  • outlet guide surfaces 44 and 46 terminate at a trailing edge 50
  • each of the edges 48, 50 has a concave-shaped length that extends
  • the flow chamber 26 is defined by cylindrical wall surfaces 52 and
  • the sealing surfaces 36, 38 are separated by a transverse thickness T in a plane containing
  • the ratio of L/T is in the
  • sealing surfaces 36, 38 be centered
  • sealing surfaces 36, 38 are also centered on a longitudinal plane containing the flow
  • sealing surfaces 36, 38 have a spherical
  • the guide surfaces 40, 42, 44, and 46 be centered on a longitudinal plane containing the flow axis
  • the valve may become too large or may require so much diaphragm
  • the ratio of L/T is approximately 2.4, the angle ⁇ is approximately 25°, the radius Rl is approximately 1.0 inch, the radius R2 is approximately of 1.75
  • chamfered undercuts 58 are provided in the wall surfaces 52, 53 adjacent the diaphragms 12, 13 to
  • the housing 11 be a unitary construction that is molded or cast from
  • the housing 11 have an
  • valve 10 and the housing 11 be symmetrical about
  • the diaphragm 12 is identical to the diaphragm 13, and the cover 14 is identical to the cover 15.
  • the diaphragm 12 has a preformed spherical center portion 60 with a spherical mating
  • the diaphragm 12 also includes an annular sealing bead 62, which is received in an annular
  • the sealing bead 62 defines a base plane 66 for the diaphragm 14.
  • the center portion 60 has a natural bias to remain on one side or the other of the base plane 66. Because the diaphragm 12 is symmetrical, either side of the
  • the diaphragm 12 is formed of a resilient material
  • Black NBR, 50 duro is suitable.
  • the cover 14 has a spherical interior surface 70 that is shaped to substantially match
  • the surface 70 combines with
  • the cover 14 has an
  • annular bead 78 which retains the sealing bead 62 in the groove 64 when the cover 14 is attached to
  • the cover 14 has a control pressure port 80 surrounded by a nipple 82 which is
  • control port is selective engagement of the diaphragm 12 with the sealing surface 36.
  • the control port is selective engagement of the diaphragm 12 with the sealing surface 36.
  • each of the diaphragms 12, 13 causes a bulge 90 to form in each diaphragm 12,
  • the diaphragms 12, 13 do not have to be stretched and/or deformed to engage the sealing surfaces
  • the wing-shaped web as defined by the spherical sealing surfaces 36 and 38, the
  • concave conical guide surfaces 40, 42, 44, and 46, and the leading and trailing edges 48, 50 provides a flow path through the valve 10 that is characterized by the absence of discontinuity and that allows
  • valve 10 may be acceptable to provide the valve 10 with a single flow path
  • valve 10 to provide a sanitary milking system. Because the valve 10 only requires five components (housing 11 ; diaphragms 12, 13;

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

La présente invention concerne un robinet destiné à être utilisé comme robinet d'arrêt dans un système de traite. Le robinet comprend un boîtier de robinet muni d'un orifice d'entrée (18), d'un orifice de sortie (20) et d'une paroi intérieure (28) entre les orifices d'entrée et de sortie. La paroi intérieure présente deux surfaces d'étanchéité (36, 38) concaves se faisant face. Le robinet comprend en outre deux membranes opposées (12, 13), chacune étant montée sur le boîtier afin d'entrer en contact de façon sélective avec l'une des surfaces d'étanchéité de la paroi intérieure pour interrompre l'écoulement de l'orifice d'entrée vers l'orifice de sortie.
PCT/US1998/023304 1997-11-05 1998-11-03 Robinet d'arret a membrane double WO1999023402A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13753/99A AU1375399A (en) 1997-11-05 1998-11-03 Double diaphragm shut-off valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96507497A 1997-11-05 1997-11-05
US08/965,074 1997-11-05

Publications (1)

Publication Number Publication Date
WO1999023402A1 true WO1999023402A1 (fr) 1999-05-14

Family

ID=25509400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/023304 WO1999023402A1 (fr) 1997-11-05 1998-11-03 Robinet d'arret a membrane double

Country Status (2)

Country Link
AU (1) AU1375399A (fr)
WO (1) WO1999023402A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2814821A1 (fr) * 2000-10-03 2002-04-05 Pierre Gay Pour le controle des debits fluides appareil polyvalent autopilote a diaphragme elastique plat
DE10223824B4 (de) * 2002-05-28 2005-03-24 Gaida, Gregor, Dr.-Ing. Membranventil
CN105179769A (zh) * 2015-09-17 2015-12-23 付明 一种压差柱塞自动调压阀
WO2017212481A1 (fr) * 2016-06-09 2017-12-14 Dorot Management Control Valves Ltd. Soupape à diaphragme et diaphragme s'y rapportant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB853631A (en) * 1956-02-17 1960-11-09 Ronald Fortune Improvements in valves for fluids
US4659062A (en) * 1984-03-26 1987-04-21 Mooney Richard J Flowgrid regulator
US4756274A (en) 1985-11-01 1988-07-12 Babson Bros. Co. Optical milk flow detector and vacuum shutoff for milker
US5335696A (en) * 1993-03-10 1994-08-09 Fluoroware, Inc. Three-way weir style valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB853631A (en) * 1956-02-17 1960-11-09 Ronald Fortune Improvements in valves for fluids
US4659062A (en) * 1984-03-26 1987-04-21 Mooney Richard J Flowgrid regulator
US4756274A (en) 1985-11-01 1988-07-12 Babson Bros. Co. Optical milk flow detector and vacuum shutoff for milker
US5335696A (en) * 1993-03-10 1994-08-09 Fluoroware, Inc. Three-way weir style valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2814821A1 (fr) * 2000-10-03 2002-04-05 Pierre Gay Pour le controle des debits fluides appareil polyvalent autopilote a diaphragme elastique plat
DE10223824B4 (de) * 2002-05-28 2005-03-24 Gaida, Gregor, Dr.-Ing. Membranventil
CN105179769A (zh) * 2015-09-17 2015-12-23 付明 一种压差柱塞自动调压阀
WO2017212481A1 (fr) * 2016-06-09 2017-12-14 Dorot Management Control Valves Ltd. Soupape à diaphragme et diaphragme s'y rapportant
US10774940B2 (en) 2016-06-09 2020-09-15 Dorot Management Control Valves Ltd. Diaphragm valve and diaphragm therefor

Also Published As

Publication number Publication date
AU1375399A (en) 1999-05-24

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