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
  • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
  • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
  • F16K1/301—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers only shut-off valves, i.e. valves without additional means
  • F16K1/303—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers only shut-off valves, i.e. valves without additional means with a valve member, e.g. stem or shaft, passing through the seat
• • 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
  • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
  • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
  • F16K1/304—Shut-off valves with additional means
  • F16K1/306—Shut-off valves with additional means with a valve member, e.g. stem or shaft, passing through the seat
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/6198—Non-valving motion of the valve or valve seat
  • Y10T137/6253—Rotary motion of a reciprocating valve
  • Y10T137/6362—Manual rotating means

Definitions

• the invention relates to a valve device for fluid, especially for pressurized gas.
• the valve device is intended to be mounted on a pressurized gas storage bottle. More particularly, but in a nonlimiting manner, the device is intended to be mounted on an oxygen cylinder in order to ensure a controlled oxygen service flow rate.
• valve device with pressure reducer. integrated and flow selector intended in particular for the medical field for the oxygen service to patients
• This device has the particularity of integrating the expander into the closing function of the device, since the expander is integrated into a mobile device in translation and This movable equipment is actuated in translation by a mechanical device that converts the rotational movement of the control wheel into a translational movement for opening or closing the valve device.
• the rotary control wheel is mechanically connected to a valve.
• the mechanical control device of the mobile equipment is in a low pressure chamber crossed. by the gas leaving the court and going towards the exit of service of the device.
• This mechanical device comprises a member carrying a biie of pressure acting on the mobile equipment.
• This element has an external thread cooperating with an internal thread of the body.
• 11 also has splines cooperating with corresponding splines of another element connected to the control wheel.
• the object of the invention is to propose a valve device that overcomes at least one of the disadvantages mentioned above.
• the invention consists of a valve device for fluid, in particular for pressurized gas, comprising: a body with a longitudinal axis an inlet at a lower part of said body, an outlet at an upper part dual body and a passage connecting said inlet with said output; a shutter movable in a direction substantially parallel to said longitudinal axis and cooperating with a fixed seat in said passage so as to be able to close said passage; a rotatable manual control member disposed at an upper part, preferably at the top, of said body; a device for converting the rotary movement of said control member into a translation movement along said longitudinal axis, said converting means being connected to said control member and being adapted to move said shutter to open or close said passage depending on the manipulation of said controller; wherein said conversion device is disposed in an isolated chamber of said passage, preferably venting, said passage bypassing said chamber
• the outlet is disposed above the chamber of the conversion device along the longitudinal axis.
• the passage comprises a lateral section with respect to the longitudinal axis of the body, said section bypassing the chamber of the conversion device.
• the valve device comprises an expansion device disposed laterally at the longitudinal axis and in connection with the valve 5 the valve device also comprises a low pressure chamber arranged around and / or above conversion device chamber, said low pressure chamber being in connection with the outlet and the expansion device.
• IB comprises a low-pressure chamber the flow rate output selection device, preferably with an orifice disc caiibrès ⁇ said selecting means being mechanically connected to i: rotary control member and the device conversion.
• the conversion device comprises a first generally circular part and having an external thread cooperating with a fixed internal thread, said first part being movable in rotation and in translation via its external thread and a second part. rotationally movable only ensuring the mechanical connection between the control member and the first part, the second part preferably comprising a flange, preferably coming integrally with said second part, provided with calibrated orifices able to move in front of a passage section in direct connection with the output.
• the first movable part comprises a cavity with which the second movable part cooperates in rotation.
• the conversion device comprises a third fixed piece in the form of a bell with an internal thread cooperating with the external thread of the first piece, said third piece forming with a cavity of the body the chamber of the device conversion.
• the second part cooperates with the first part inside the third piece known means of parallel grooves al longitudinal axis, the second part being mounted étancbe in rotation with respect to said third piece.
• the conversion device is such that the second piece can be introduced into the third piece and into the first piece by insertion from the top of the device when the first and third pieces are put in place on the body.
• the plug and seat you are arranged such that a duel movement shutter in it feel flow from said inlet to said outlet closes the passage and vice versa and in that the conversion device is able to come into free contact with said shutter so as to open the passage.
• a clearance is present between the conversion device and the shutter when the control member is in the closed position.
• the shutter or seat is equ ⁇ è sealing means. and said shutter comprises a mechanical stop so as to limit the deformation of the sealing means when said shutter is in the closed position and subjected to the fluid pressure.
• the mechanical shutter burner comprises a circular element surrounding the sealing means of the shutter.
• FIG. 1 is a sectional view of a valve device of the invention â.
• FIG. 2 is a hydraulic diagram of the device of FIG.
• valve device comprises a body 2 having a longitudinal axis corresponding to a vertical axis as illustrated in FIG.
• the representation of the lower part of the body is truncated for the sake of clarity of exposition. However, it is noted that additional specific functions of the lower part of such a device such as a filter function, pressure indicating bottle or filling connector, are all-in-fact conceivable.
• the body 2 of the valve device comprises an inlet (not shown) typically in the form of a threaded end piece designed to be screwed onto a bottle. This entry is in connection with a passage 4 formed in Se body 2,
• the passage comprises in the lower part of the body a first cavity comprising a device for closing the passage.
• This closing device comprises a shutter 10, a seat 8 and a spring 5, the seat 6 is UU metallic type and based on the body 2.
• W has an annular surface whose section presents a recess or a bowl and a raised portion near the passage opening ⁇ u gas.
• the shutter is symmetrical in rotation relative to its longitudinal axis which coincides with the longitudinal axis of the device. It comprises a flared or conical portion having a groove in which a torque seal is housed. This flared or conical portion ends downwards by a threaded cylindrical portion.
• a skirt 8 of shape corresponding dimension and is screwed onto the cylindrical portion of the shutter. This skirt 8 surrounds the O-ring 12 and comes into contact with it.
• the skirt also serves for guiding or holding the spring 5.
• the lower end of the shutter comprises a cavity of polygonal cross section, for example corresponding to im hexagon for receiving a ou ⁇ l for tightening the skirt on the shutter before assembly of the device.
• the plug includes a cylindrical portion or rod-shaped means cooperating with sealing of a separator 20 of the high pressure chamber 18.
• the seat 6 is in fact housed in a bore provided in you body 2; the seat 6 is then covered with a separator 20 provided with seals intended to ensure a seal with the body 2 as well as with the stem of the shutter 10.
• the high pressure chamber 18 communicates via a passage formed by a first bore with a regulator 14 disposed laterally.
• a regulator 14 disposed laterally.
• the details of the expander are not extensively described in that this regulator is of conventional construction known to those skilled in the art.
• a mobile unit comprises a pellet cooperating in a étanehe manner with a fixed seat on the body, this crew comprises a passage for the gas supplying a chamber delimited by the most lateral part of the mobile equipment and by the chamber of the body in which crew is housed. The pressure on this face of the mobile equipment can move this crew to the seat so as to more or less close the gas passage.
• a second bore 18 is provided in the body, communicating the output of the ⁇ étenûeu ⁇ directly with the low pressure chamber 40.
• This 1 ⁇ passageway bypasses the chamber 34 containing Ia mechanical control of the shutter.
• This chamber 34 is in fact delimited by the bell-shaped piece 30 rigidly fixed to the body 2 of the device by a threaded connection 32.
• a seal is also provided between the outer surface of the piece 30 and the corresponding inner surface of the body 2 so as to make the chamber 34 étanehe relative to the low pressure chamber 40.
• the piece 30 also comprises an internal thread cooperating with the external thread of the piece 36.
• This piece 36 is in the general cylindrical shape having a lower surface contact with the stem of the shutter 10 and a hollow at its upper surface. intended to cooperate in rotation with the control pin 22.
• the cavity of the piece 36 comprises grooves (not visible in the figure) parallel to the longitudinal axis of the device and the outer surface of the lower end of the control pin 22 comprises corresponding grooves. These splines provide a rotational connection while allowing movement of the workpiece 36 relative to the control spindle 22 along the longitudinal axis.
• the bell-shaped part 30 has an opening in its center and an O-ring housed in a groove formed in the opening. This opening receives the pin 22 at a section greater than that of its end having the grooves cooperating with the moving part 36.
• the chamber 34 is thus separated etacheche the low pressure chamber 40 by the upper part of the workpiece 30 shaped and the seals associated with this part cooperating with the body 2 and the spindle 22.
• the chamber 34 is also separated in a sealed manner from the high pressure chamber 18 by the cover 20 and cooperating associated seals, with the body 2 and the shutter rod 10. This chamber 34 is vented via a bore made laterally in the body 2.
• the low pressure chamber 40 is delimited by the body 2 "the upper surface of the bell-shaped part 30 and the spindle support 41.
• This spindle support constitutes the upper part of the body of the valve device which is attached to the body 2 itself by means of a mounting ring 37.
• a seal is provided at the support surface of the spindle support 22 which comes into contact with the body 2 to ensure a sealing of the lower chamber pressure 40.
• the control pin is supported and guided by the support 41. It comprises a disk 28 integral with the pin, the disk 28 having a series of calibrated openings or orifices distributed over a diameter corresponding to that of the passage 26 communicating the low pressure chamber 40 with the outlet 24
• a seal is provided in a netting at the passage 26 to provide sealing with the disc surface.
• the disc 28 bears on the corresponding surface of the support 41,
• the upper part of the control spindle 22 is connected to a control wheel 42.
• the section of the part of the spindle 22 cooperating with the flywheel 42 is non-circular so as to ensure a rotational connection of the spindle and the flywheel.
• the steering wheel comprises a ball system 44 cooperating with one or more recesses provided on the upper surface of the support 41 for indexing purposes.
• a seal and an anti-extrusion ring are provided between the circular portion of the spindle and the support 41 so as to ensure a seal relative to the outside of the low pressure chamber 40.
• a splined tip is screwed to the outlet 24 of the device to receive a service hose.
• the shutter device 5, 8, 8, 10 is first placed in the body 2 from the top of the body.
• the lid 20 is then arranged above and the bell-shaped 30-year piece with the movable piece 36 screwed in is then screwed into the body 2, the annular lower surface of the part 30 then bears on the cover 20 and holds the entire shutter portion in place in the body.
• a working pressure typically 240 bar is then applied to the device's re-entry so as to simulate a maximum work situation.
• the shutter 10 is in metal-to-metal support, that is to say in abutment, against the seat 8 in the skirt 8. The position of the shutter then corresponds to a maximum maximum position of closure .
• the moving part 36 is then manually rotated through the upper opening of the workpiece 30 so that the lower surface of the moving part 36 is flush with the upper surface of the shank.
• the spindle support 41 equipped with the spindle 22, the flywheel 42 and its clamping ring 37 is then set up by translatory movement from top to bottom so that the fluted end of the spindle penetrates the fluted cavity of the movable part 38.
• the steering wheel must be in an OFF position corresponding to the closure to the device In this way, the mechanical control device of the shutter is correctly indexed with the control wheel which is itself indexed with the orifice disc calibrated via the key at the pin-flywheel connection.
• the flywheel has a second position indexed ON / 0 remote from the first POSStJOn 1 typically of the order û quarter to a half turn. In this position, the spindle has described a corresponding rotation which has had the effect of lowering the moving part 38 and hence also the shutter 10.
• the gas shutter device is thus open and the high pressure chamber 18 is at the pressure of the bottle.
• the regulator 14 is under pressure and closed, ready to work.
• the disk 28 In the ON / 0 position, the disk 28 has a closed surface at the passage 28 so that the device delivers no gas to the outlet.
• the steering wheel then has a series of indexed positions corresponding to various flow rate values, for example 1 - 1, 5 - 2 - 3- 4- 5-6 ⁇ 9 ⁇ 12- 15 expressed for example in liters / minute. Each of these indexed positions corresponds to a calibrated orifice of the disk 28. This device thus allows simplified handling for the user by means of a single control wheel.
• FIG. 2 iiiustre the hydraulic diagram of the device of Figure 1.
• Bet re-entry to the exit it shows a valve V corresponding to the closing device 8, 10; a pressure regulator PR corresponding to the expander 14; a safety valve device SRV (safety release valve) not visible in Figure 1 as arranged in S 'rear of the device; a medical output called IvIC (Medical Connect) also not shown and in direct connection with the low pressure chamber 40 and a flow selector FS (ftow selector) corresponding to the disc 28 with calibrated orifices cooperating with the passage 26.
• the dashed line connecting the flow selector FS at the valve V1 corresponds to the mechanical connection between the control pin 22 of the flow selector and the shutter 10.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Lift Valve (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=41649985

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Family Cites Families (9)

• 2009
  • 2009-06-30 LU LU91582A patent/LU91582B1/fr active
• 2010
  • 2010-06-29 US US13/381,045 patent/US20120125449A1/en not_active Abandoned
  • 2010-06-29 WO PCT/EP2010/059221 patent/WO2011000839A1/fr active Application Filing
  • 2010-06-29 EP EP10731493A patent/EP2449292A1/de not_active Withdrawn
  • 2010-06-29 CA CA 2765629 patent/CA2765629A1/fr not_active Abandoned

Non-Patent Citations (1)

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