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WO1999041535A1 - Obturateur de soupape de rotor flexible ameliore et soupape de rotor juxtaposee incorporant l'obturateur - Google Patents

Obturateur de soupape de rotor flexible ameliore et soupape de rotor juxtaposee incorporant l'obturateur Download PDF

Info

Publication number
WO1999041535A1
WO1999041535A1 PCT/US1998/002904 US9802904W WO9941535A1 WO 1999041535 A1 WO1999041535 A1 WO 1999041535A1 US 9802904 W US9802904 W US 9802904W WO 9941535 A1 WO9941535 A1 WO 9941535A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
seal
valve
cylindrical
disc
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US1998/002904
Other languages
English (en)
Inventor
David J. Barbuto
Theodore T. Evangelo
James B. Horman, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quality Controls Inc
Original Assignee
Quality Controls Inc
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 Quality Controls Inc filed Critical Quality Controls Inc
Priority to CA002362991A priority Critical patent/CA2362991C/fr
Priority to US09/242,941 priority patent/US6308739B1/en
Priority to PCT/US1998/002904 priority patent/WO1999041535A1/fr
Publication of WO1999041535A1 publication Critical patent/WO1999041535A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/076—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with sealing faces shaped as surfaces of solids of revolution
    • 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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
    • F16K11/0856—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/18—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces
    • F16K5/184—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing

Definitions

  • the present invention is an improved flexible rotor valve seal and an improved ganged rotor valve utilizing the seal.
  • this invention is an improvement of the seal disclosed in Flexible Seal for Rotor Valves, U.S. 4,548,385, October 22, 1985, by one of the present inventors.
  • the improved seal permits the manufacture of a novel ganged multiway rotor valve, e.g. an 8-way value.
  • the rotor valve seal of U.S. 4,548,385 works excellently in the usual applications for which it was designed.
  • the seal of the patent provides such a large contact area that rotor movement is unduly stiff or impeded requiring undue force to turn the rotor or a larger drive motor than may be necessary.
  • the plastic of the seal expands with heating, it is desirable to reduce the mass thereof as much as possible.
  • the seal of the patent is characterized by having a rectangular shape that fits or slides into a flat-bottomed channel in the valve rotor that lies about the port to be sealed.
  • a 4-way valve with the ports spaced 90 degrees about the rotor 4 such seals would be used each having an opening registering with the ports of the rotor and valve body.
  • the outer surface of the seal is curvilinear, mating with the curvature of the valve body.
  • the inner flat surface of the seal mates with the flat bottom of the channel in the rotor and has a circular groove about the port to be sealed which groove retains an O-ring.
  • the seal can be just, if not more effective, if it is circular rather than rectangular. This reduces the surface area of the seal in contact with the valve body and thus the force required to turn the rotor.
  • the O-ring ⁇ the flexible sealing mechanism that energizes the seal—and its channel operate in the same manner as illustrated in the patent, except that the sealing force of the O-ring around the circumference of the port in the seal is more uniform, i.e. as the seal of the patent was rectangular, the force developed by the fluid pressure within the port against the inner, circular edge was not uniformly distributed around the outer portions of the seal.
  • the seal of this invention is then a disc of a rigid but deformable plastic, e.g. a glass or carbon fiber reinforced plastic, preferably one offering a low coefficient of sliding friction, such as a polytetrafluoroethylene.
  • This disc is preferable machined but in some instances can be compression molded.
  • the disc if not used to seal off an entry or exit port, has a central, circular port and its front surface is a portion of a cylindrical surface that is blemish free and without nicks and scratches.
  • the front surface matches the curve of the valve body.
  • the back surface of the disc is usually flat and has a circular groove therein equidistant about the central port to accommodate a flexible sealing mechanism, e.g. an O-ring.
  • the depth of the groove preferably does not exceed 90 percent of the overall thickness of the seal. While the back of the disc is usually flat, it can be convex or concave as the application may require.
  • the seal can have any diameter, e.g. from 0.5 to 100 inches, with 1 to 24 inches being common.
  • the flexible sealing mechanism can be an O-ring or can be square in cross- section. Quad rings are particularly useful.
  • the flexible sealing mechanism "energizes" the seal and is of a flexible elastomeric or deformable material such as Delrin or Teflon (trademarks of E.I. DuPont de Nemours & Co.), a polyvinyl chloride, a polysulfone, a polyolefin (polyethylene), vulcanized rubber or the like.
  • the impart a degree of toughness and resistance to damage and cold flow the plastic of the disc is preferably reinforced as with 15% to 35% glass or carbon fibers or brass or sintered steel powder or similar materials.
  • the improved ganged rotor valve of this invention permitted by the improved seal comprises a valve body having a cylindrical rotor chamber into which fits a rotor.
  • the rotor has several independent flow passageways or bores therein. One passageway can go from one level to another but more usually will go directly through the rotor.
  • the valve body has inlet and outlet ports that mate with the rotor passageways. While at a minimum there will be at least two sets of inlets and outlets in the valve body spaced along the length thereof, i.e. an upper and a lower set, there will usually be a pair at each level along the length of the valve body with mating passageways or bores there through in the rotor for each set.
  • valve seal of this invention is inset into a circular seat in the cylindrical surface of the rotor about the end of each of the openings of the bores or passageways.
  • the port of the seal if it has one, aligns with the corresponding openings.
  • the outer surface of the cylindrical seal of the disc has about the same radius of curvature, preferable slightly less, than that of the cylindrical surface with which it is in sealing contact.
  • the groove at the bottom of the seal holding the flexible sealing mechanism operates against the disc urging the cylindrical surface of the disc against the wall of the rotor chamber.
  • a ganged rotor valve having two paired inlet and outlet ports with each pair thereof having two inlet and outlet ports equidistant around the rotor chamber and with the rotor having two bores independent of one another for and mating with each of said paired outlet ports whereby each of the paired inlet and outlet ports with their respective bores operate as an 8-way valve.
  • This valve permits the control of two independent fluid flows, such as an air-conditioning fluid and domestic hot water.
  • the 8-way ganged rotor valve is particularly useful in an air conditioning/heating unit wherein the heating and cooling flows of the air conditioner fluid need to be reversed from time to time.
  • This valve greatly simplifies and decreases the plumbing required besides reducing the manufacturing costs and the energy loss of the air conditioner's plumbing.
  • the 8-way air conditioner valve may be operated by a motor, and the seal of this invention reduces the force required such that the motor can be smaller and thus less expensive.
  • the valve may operate at a relatively low pressure, e.g.
  • the valve can be constructed of machined aluminum, although brass or stainless steel can be used. In some cases, machinable or malleable plastics can be used.
  • Fig. 1 is an elevational view of the improved seal of this invention without a port
  • Fig. 2 is a bottom view
  • Fig. 3 is a half section elevational view of a disc having a central port
  • Fig. 4 is a half section elevational view of a disc without a central port
  • Fig. 5 is an enlarged view of the channel holding the sealing mechanism as circled in Fig. 3
  • Fig. 6 is a similar view illustrating an alternative flexible sealing mechanism
  • Fig. 7 is an elevational view of the 8-way valve of this invention
  • Fig. 8 is a bottom view of the above
  • Fig. 9 is a half section elevational view of the valve
  • Fig. 10 is an elevational view of the rotor of the valve
  • Fig. 11 is a sectional view of the valve taken along Line A-A of Fig. 9. Throughout the drawings the same parts have the same numbers.
  • the sealing disc of this invention is shown at 10. It has in one embodiment a central port 11 and the bottom has a groove 12 spaced about the central port which groove holds O-ring 15 as shown in the enlargement in Fig. 5 of the circled portion 14 of Fig. 3.
  • the bottom of the disc is flat, and the top of the disc is a portion of a cylindrical surface that mates with the inner wall of the valve body.
  • the views shown in Figs. 1 and 4 are looking along the long axis of the cylindrical surface and that of Fig. 3 has a long axis parallel to the plane of the paper.
  • the disc 10 fits into the valve in only one of two ways. In assembly, exact alignment is not required as the disc is self-aligning to some extent as the parts are pushed together.
  • Fig. 4 illustrates the seal without a central port when it is to be used to close off a passageway in a valve.
  • Fig. 6 illustrates another type of flexible sealing mechanism that can be used; namely, a quad ring.
  • FIG. 7 an 8-way valve is shown in elevation.
  • a flange 21 to support a motor (not shown) is fastened to the valve by bolts 27.
  • the valve body 22 has two pairs of upper and lower inlets and outlets 23. The bottom of the valve body is closed by flange 24 held in place in bolts 26.
  • the rotor 30 has at its top a recess 31 to receive the drive shaft of a motor (not shown). It has at its top a pair 32 and 33 of curved channels each connecting a pair of ports spaced 90 degrees from one another and similarly has a pair of channels 34 and 35 at its bottom portion.
  • the upper end of the rotor has a seal at 38 as is known.
  • the rotor also has a seal
  • the ganged valve of this invention will work equally well with two-way and/or three-way flows at each level. Also, four- way flow patterns using straight through, L or T channels in the rotor at each level can be accomplished as is conventional.
  • the action of the O-ring in channel 12 is the same as described in U.S. 4,548,385 except as noted previously the force generated is more uniform about the disc, as the disc is round rather than rectangular.
  • the flexible sealing mechanism can have a shape other than round in cross-section, and its groove can be rectangular in cross-section as shown in
  • a disc seal of this invention is made of machined glass-fiber reinforced polytetrafluoro-ethylene. It has an outside diameter (O.D.) of 0.984 inches, a flat bottom and a crown with a radius of curvature of 0.750 inches. It has a central port there through of 0.563 inches diameter. About the port is an O-ring channel having an O.D. of 0.847 inches, an inner diameter of .762 inches and a depth of 0.049 inches.

Landscapes

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

Abstract

L'invention concerne un obturateur (10) dans un disque de plastique déformable rigide, dont la surface supérieure est cylindrique et la surface inférieure présente une rainure circulaire (12) contenant un mécanisme d'obturation flexible (15). Cet obturateur est adapté pour être utilisé dans une soupape (22) de rotor juxtaposée présentant deux ou plusieurs niveaux de passages de fluide indépendants à travers le rotor sur sa longueur. Chaque niveau présente normalement deux passages indépendants en forme de L (34, 35). L'obturateur (10) s'adapte dans le rotor autour de chaque extrémité des passages (34, 35) afin d'obturer le passage entre le rotor et le corps de soupape (22).
PCT/US1998/002904 1998-02-13 1998-02-13 Obturateur de soupape de rotor flexible ameliore et soupape de rotor juxtaposee incorporant l'obturateur Ceased WO1999041535A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002362991A CA2362991C (fr) 1998-02-13 1998-02-13 Obturateur de soupape de rotor flexible ameliore et soupape de rotor juxtaposee incorporant l'obturateur
US09/242,941 US6308739B1 (en) 1998-02-13 1998-02-13 Flexible rotor valve seal and ganged rotor valve incorporating same
PCT/US1998/002904 WO1999041535A1 (fr) 1998-02-13 1998-02-13 Obturateur de soupape de rotor flexible ameliore et soupape de rotor juxtaposee incorporant l'obturateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1998/002904 WO1999041535A1 (fr) 1998-02-13 1998-02-13 Obturateur de soupape de rotor flexible ameliore et soupape de rotor juxtaposee incorporant l'obturateur

Publications (1)

Publication Number Publication Date
WO1999041535A1 true WO1999041535A1 (fr) 1999-08-19

Family

ID=22266397

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/002904 Ceased WO1999041535A1 (fr) 1998-02-13 1998-02-13 Obturateur de soupape de rotor flexible ameliore et soupape de rotor juxtaposee incorporant l'obturateur

Country Status (2)

Country Link
CA (1) CA2362991C (fr)
WO (1) WO1999041535A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1098119A1 (fr) * 1999-11-03 2001-05-09 Fleetguard, Inc. Dispositif de vannes
WO2013034967A3 (fr) * 2011-09-06 2013-07-11 Toyota Jidosha Kabushiki Kaisha Clapet sélecteur et système de refroidissement
CN105408671A (zh) * 2013-07-25 2016-03-16 舍弗勒技术股份两合公司 具有隔离的流动室的热管理阀模块
EP2909514A4 (fr) * 2012-09-28 2016-11-23 Robertshaw Controls Co Système et procédé de soupape
CN107559459A (zh) * 2017-09-11 2018-01-09 南宁宇立仪器有限公司 一种电动伺服阀
JP2023155199A (ja) * 2022-04-07 2023-10-20 ベルガー・ホールディング・ジ－エムビ－エイチ・アンド・シーオー・ケージー 暖房および／または冷房システムにおける流量調節用弁

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2154945A (en) * 1937-01-11 1939-04-18 Riley Stoker Corp Valve
US2371657A (en) * 1943-12-30 1945-03-20 Parker Appliance Co Valve assembly
US2840109A (en) * 1957-02-25 1958-06-24 Win Well Mfg Company Rotary selector valve
US4355659A (en) * 1981-01-08 1982-10-26 The Hilliard Corp. Rotary plug valve
US4548385A (en) * 1979-12-18 1985-10-22 Quality Controls, Inc. Flexible seal for rotor valves
US4697786A (en) * 1984-06-21 1987-10-06 Itt Corporation Eccentric plug valve
US5167254A (en) * 1991-04-23 1992-12-01 The United States Of America As Represented By The Secretary Of The Army Adsorber switching valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2154945A (en) * 1937-01-11 1939-04-18 Riley Stoker Corp Valve
US2371657A (en) * 1943-12-30 1945-03-20 Parker Appliance Co Valve assembly
US2840109A (en) * 1957-02-25 1958-06-24 Win Well Mfg Company Rotary selector valve
US4548385A (en) * 1979-12-18 1985-10-22 Quality Controls, Inc. Flexible seal for rotor valves
US4355659A (en) * 1981-01-08 1982-10-26 The Hilliard Corp. Rotary plug valve
US4697786A (en) * 1984-06-21 1987-10-06 Itt Corporation Eccentric plug valve
US5167254A (en) * 1991-04-23 1992-12-01 The United States Of America As Represented By The Secretary Of The Army Adsorber switching valve

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1098119A1 (fr) * 1999-11-03 2001-05-09 Fleetguard, Inc. Dispositif de vannes
WO2013034967A3 (fr) * 2011-09-06 2013-07-11 Toyota Jidosha Kabushiki Kaisha Clapet sélecteur et système de refroidissement
EP2909514A4 (fr) * 2012-09-28 2016-11-23 Robertshaw Controls Co Système et procédé de soupape
CN105408671A (zh) * 2013-07-25 2016-03-16 舍弗勒技术股份两合公司 具有隔离的流动室的热管理阀模块
CN105408671B (zh) * 2013-07-25 2017-09-12 舍弗勒技术股份两合公司 具有隔离的流动室的热管理阀模块
CN107559459A (zh) * 2017-09-11 2018-01-09 南宁宇立仪器有限公司 一种电动伺服阀
CN107559459B (zh) * 2017-09-11 2024-04-12 南宁宇立仪器有限公司 一种电动伺服阀
JP2023155199A (ja) * 2022-04-07 2023-10-20 ベルガー・ホールディング・ジ－エムビ－エイチ・アンド・シーオー・ケージー 暖房および／または冷房システムにおける流量調節用弁
US12123506B2 (en) 2022-04-07 2024-10-22 Berger Holding GmbH & Co. KG Valve for flow regulation in a heating and/or cooling system

Also Published As

Publication number Publication date
CA2362991C (fr) 2005-12-27
CA2362991A1 (fr) 1999-08-19

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