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
  • F16K11/022—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising a deformable member
• • 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
  • F16K11/0853—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 a single 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
  • F16K5/187—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 with rolling action
• • 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
  • F16K7/18—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with diaphragm secured at one side only, e.g. to be laid on the seat by rolling action

Definitions

• VALVES This invention relates to valves.
• Valves commonly in use include a valve body having at least one aperture through which fluid may pass and some form of valve closure which may be moved so as to cover the aperture and prevent or restrict passage of fluid through the aperture.
• Some such valve closures employ flexible or resilient materials to assist in forming and maintaining the cover of the aperture.
• the present invention provides a valve comprising a body, an aperture in a surface of said body through which fluid may pass, a resilient valve closure having a surface comprised of a first portion in contact with said surface of said body, a second portion out of contact with said surface of said body and a third, curved, portion interconnecting the first portion and the second portion, and actuating means for causing a rolling of said closure such as to cause at least part of said third portion to move to overlie said surface of said body in the region of said aperture and to cause at least part of the second portion to take up a curved position similar to that of said third portion, said rolling thereby providing for said closure to close said aperture.
• the valve closure may be a solid body able to roll along said surface of the valve body.
• the closure might be spherical or conical but preferably the closure, if solid, is cylindrical.
• the use of a solid body valve closure is preferred if the valve is to be subjected to high pressures.
• the cross section of the valve closure comprises a loop of material comprised of two lengths joined by a bight.
• the loop may be an open loop in which case said lengths will have definite ends or the loop may be a closed loop in which case a second bight joins said lengths.
• one of the definite ends of said lengths is physically connected to said surface of said body and that the other of the definite ends of said lengths is physically connected to the actuating means.
• the physical connection may be achieved in any suitable way such as by rivets, screws, pins, pegs, capture or adhesive.
• the apertured surface of the valve body may be planar or curved.
• the valve closure may be made of any suitable material but particularly preferred materials include metals, rubbers, both synthetic and natural and resilient synthetic plastics materials.
• materials suitable for the closure are those sufficiently resilient to withstand the flexing and strength sufficient to withstand the pressures which will be encountered.
• materials which have been used are mylar film, reinforced rubber sheet, polyurethane rubber, stainless steel spring tape, silicone rubber and neoprene rubber.
• the closure may simply be a length of resilient tubing.
• the actuating means may include a member which moves linearly, in an arc or rotates or revolves. That member may be physically connected to the closure as previously stated but in many instances no more than a frictional engagement will be required.
• Figure 1 is a cross-sectional view of a first valve.
• Figure 2 is a cross-sectional view on line A-A in Figure 1
• Figure 3 shows alternative port arrangements
• Figure 4 is a cross-sectional view of a second valve
• Figure 5 is a view of a port of the second valve.
• Figure 6 is a cross-sectional view of a third valve.
• Figure 7 is a cross-sectional view of a fourth valve.
• Figure 8 is a cross-sectional view on line B-B in Figure 7.
• Figure 9 is a cross-sectional view of a fifth valve
• Figure 10 is a cross-sectional view on line C-C in
• FIG 11 is a cross-sectional view of a sixth valve.
• the first valve as shown in Figures 1 and 2 comprises a first body part 2 having a cylindrical inner chamber 3, an axial inlet 4 to the chamber 3 and a peripheral outlet 6 from the chamber 3.
• the members defining inlet 4 and outlet 6 may be threaded for connection to piping.
• the outlet 6 is provided with a plurality of small ports 7 so as to leave a substantial portion of the cylindrical wall of the chamber 3 available to support a valve closure 8.
• the first body part 2 also has a recess 9 in which an O-ring seal 21 is received.
• the first valve also includes a second body part 22 which is secured to the first body part 2 in any convenient way.
• the second body part 22 has a recess 23 in which is located an O-ring seal 24 and supports a shaft 26 having an outer end 27 which may be rotated in any convenient way such as by hand and an inner end 28 which will be turned by the outer end 27.
• a knob or similar device may be mounted on its outer end 27.
• the valve closure 8 is a length of cylindrical flexible tubing which has been forced into the space between the inner end 28 and the cylindrical wall of the chamber 3 and so has taken up the curved oval shape seen in Figure 2.
• the section 31 of the closure 8 will move in the direction of the arrow 32 so that some of it replaces part of the curved portion 33 and so that part of the curved portion 33 overlies the ports 7 and hence closes the outlet 6 of the first valve. Opening the first valve can be performed by reversing the direction of rotation of the inner end 28 or by continuing to rotate it in the direction of the arrow 29.
• closure 8 Since the closure 8 is flexible it may need substantial support in the area of the outlet 6. Various alternative shapes of outlet ports are shown in Figure 3. Where a single large port is required, the closure may be supported by appropriate internal reinforcement.
• FIG. 5 Another shape of outlet port is shown in Figure 5 and the shape chosen will depend on the application of the valve.
• the fine control allowed by the shape of the port in Figure 5 can be further refined by extending the narrow end of the port with a tapered channel in the adjacent surface of the valve body. The depth of the channel progressively increases as the channel approaches the port.
• the second valve 40 as shown in Figure 4 comprises a body 41, a linearly reciprocable actuator 42, O-ring seals 43, a cavity in the body 41 having a surface 44 provided with an outlet port 46, an inlet 47 and a valve closure 48 which is a flexible strip of material secured to the surface 44 by a screw 49 and to the actuator 42 by screws 51.
• the closure 48 has an upper section 52, a lower section 53 and a curved portion 54.
• Moving the actuator to the left in Figure 4 will cause a rolling motion in which part of the lower section 53 moves to form part of the curved portion between the upper and lower sections and at the same time uncovers the port 46 to a selected degree while part of the curved portion 54 moves to become part of the upper section.
• Closing the valve is effected by reversing the direction of movement of the actuator 42. Since the port 46 is obliquely shaped the amount and flow rate of fluid let out therefrom can be carefully controlled.
• a valve incorporating a valve closure of similar operation to that of closure 48 may be used as a cistern outlet valve.
• linearly reciprocable actuator 42 to which the closure is attached is replaced by a plate at the end of a pivotally mounted arm.
• the arcuate movement of the plate when the control lever at the opposite end of the arm is moved substantially corresponds to the linear reciprocation of actuator 42.
• the plate or end of the arm adjacent the attachment of the plate to the closure may be weighted to assist return of the closure to its sealing position.
• valve 60 as shown in Figure 6 has an inlet 61 which is peripheral and there are two outlets 62 and 63.
• Valve closure 64 is a piece of tube having a closed loop crosssection and is connected to an inner surface 66 and to a rotatable shaft 67. Rotation of the shaft 67 will cause a rolling of the closure 64 to cover and uncover the outlets
• This valve may thus be used to allow complete or proportional flow from the two outlets.
• valve closure 78 comprises a strip of flexible material connected to surface 79 of the body part 71 and to the shaft 74. Rotation of the shaft 74 will cause a rolling of the closure 78 to uncover and cover the outlet 77.
• fifth valve 80 as shown in Figures 9 and 10 two body parts 81 and 82 define a cavity 83 having surfaces 84 and 86 through which outlets 87 and 88 extend. An inlet 89 is provided in the part 81.
• a linearly reciprocable actuator 91 is sealed with O-rings 92.
• closures 95 and 93 are lengths of flexible tubing of circular cross-section but which have become generally oval due to constriction between the actuator 91 and respective ones of the surfaces 84 and 86.
• the outlet 87 is closed and the outlet 88 is open. If the actuator 91 is moved to the right in Figure 9 the closures 93 and 95 will roll on the actuator 91 and surfaces 84 and 86 to the positions shown in dash lines to open outlet 87 and close outlet 88.
• Figure 11 shows a sixth valve 100 similar in construction to that of Figures 1 and 2 but applied to a valve for use in the supply of blood or saline solution.
• Actuator shaft 101 for closure 102 moves with a cover plate rotatably attached to body part 103.
• the cover plate movement and hence adjustment of the position of closure 102 is facilitated by lever arm 104 which forms part of the cover plate.
• Channel 105 the size of which is exaggerated in the figure, is tapered in depth as shown and may also be tapered in width to provide fine flow rate adjustment from port 106.
• Valves in accordance with this invention are relatively simple and correspondingly cheap to make.
• simple castings or machining can be used, there is unlikely to be any critical machining, Q-rings may be used to provide good seals between fixed or movable parts, low operating force is required, substantial pressure can be resisted and the valve is suitable for corrosive liquids or gases. Dirt in the fluid is not a great problem as the flexibility of the closures allows at least partial compensation for the presence of dirt particles.
• Valves in accordance with this invention may be applied industrially or domestically for hot and cold fluids.
• the valves may be solenoid or motor controlled and pneumatic, hydraulic and vacuum applications are possible.
• Multi-port valves, cistern and float valves, and metering valves may be made.
• valves for medical use such as in supplying blood, saline solution or gases in that valves in accordance with this invention maintain delivery at a controlled rate after setting apart from normal dependence on pressure head variation.

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=3768867

Family Applications (1)

Country Status (7)

Cited By (11)

Families Citing this family (2)

Citations (5)

Family Cites Families (5)

• 1980
  • 1980-12-04 AU AU78308/81A patent/AU7830881A/en not_active Abandoned
• 1981
  • 1981-11-30 IT IT8125364A patent/IT1142089B/it active
  • 1981-12-01 IL IL64414A patent/IL64414A0/xx unknown
  • 1981-12-02 CA CA000391357A patent/CA1172133A/en not_active Expired
  • 1981-12-04 EP EP19820900007 patent/EP0065972A4/en not_active Withdrawn
  • 1981-12-04 WO PCT/AU1981/000184 patent/WO1982001924A1/en not_active Application Discontinuation
  • 1981-12-04 JP JP57500039A patent/JPS57502134A/ja active Pending

Patent Citations (5)

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