EP1878655A2 - Gerät zur Versorgung mit Atemgas, insbesondere für ein Mundstück für einen Taucher - Google Patents

Gerät zur Versorgung mit Atemgas, insbesondere für ein Mundstück für einen Taucher Download PDF

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Publication number
EP1878655A2
EP1878655A2 EP07301175A EP07301175A EP1878655A2 EP 1878655 A2 EP1878655 A2 EP 1878655A2 EP 07301175 A EP07301175 A EP 07301175A EP 07301175 A EP07301175 A EP 07301175A EP 1878655 A2 EP1878655 A2 EP 1878655A2
Authority
EP
European Patent Office
Prior art keywords
valve
gas
control
control element
movable
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.)
Granted
Application number
EP07301175A
Other languages
English (en)
French (fr)
Other versions
EP1878655B1 (de
EP1878655A3 (de
Inventor
Stéphane Carepa
Thomas Maeckelberghe
Nicolas Peyron
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.)
La Spirotechnique Industrielle et Commerciale
Original Assignee
La Spirotechnique Industrielle et Commerciale
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.)
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Publication date
Application filed by La Spirotechnique Industrielle et Commerciale filed Critical La Spirotechnique Industrielle et Commerciale
Publication of EP1878655A2 publication Critical patent/EP1878655A2/de
Publication of EP1878655A3 publication Critical patent/EP1878655A3/de
Application granted granted Critical
Publication of EP1878655B1 publication Critical patent/EP1878655B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C11/18—Air supply
    • B63C11/22—Air supply carried by diver
    • B63C11/2227—Second-stage regulators

Definitions

  • the present invention relates to a breathing gas supply device, in particular for a plunger mouthpiece.
  • the invention relates in particular to the field of on-demand valves for breathing gas supply systems for divers.
  • Pressurized breathing gas pressure regulators for scuba diving include a device commonly referred to as a "demand valve" which delivers to the diver a quantity of breathable gas during an inspiratory call.
  • Some on-demand valves have manual adjustments to adapt their operation to the respiratory comfort of the diver.
  • Known devices comprise a mechanism for adjusting the opening force required to open the expansion valve allowing the delivery of gas to the user.
  • This type of mechanism makes it possible to modify the necessary depression that the user must exert (suction) so that the valve opens and delivers the gas.
  • a first adjustment knob is provided to modify the tare of a return means acting on the expansion valve.
  • Known devices include a second button for adjusting the flow of breathable gas delivered to the mouthpiece during inspiration (also called setting the Venturi effect). This adjustment of the flow is obtained conventionally by deflecting the jet of gas before its exit towards the mouthpiece.
  • An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
  • the breathing gas supply device is essentially characterized in that said control element is able to cooperate also with the gas flow control member for both adjusting the opening force of the valve and adjusting the output gas flow rate.
  • Figure 1 shows a sectional view of a valve on demand that is to say a breathable gas supply device according to the invention.
  • the breathable gas supply device comprises a housing 100 provided with an inlet orifice 21 for the pressurized feed gas (coming for example from a bottle) and an outlet orifice 1 of the gas intended to be connected. with the diver's breathing apparatus (via a mouthpiece, for example).
  • the device comprises an expansion valve system 3, 4, 5, 6 and a control member 2, 20 of the flow rate of gas admitted to the orifice of exit.
  • the expansion valve system may conventionally comprise a valve 5 mounted on a piston 3 or a valve holder cooperating with a seat 6.
  • the piston 3 is integral with a sliding rod in a manner that axial movement in the housing 100.
  • the movement of the rod (and the valve) is controlled by a lever 12, one free end bears against a flexible diaphragm 13 and the other end is pivotally connected to a fixed point of the housing and at the valve stem.
  • the diaphragm 13 is subjected on the one hand to the pressure of the breathing gas on the inside of the casing 100 and, on the other hand, to the surrounding pressure (water) on the outside of the casing 100.
  • the pressure in breathing gas is regulated according to the external pressure and the respiratory demand of the diver.
  • the diaphragm 13 collapses (inspiratory depression) which pivots the lever 12 in the direction of clockwise and moves the piston rod and therefore the valve in the direction of its opening, allowing and the admission of breathing gas to the outlet 1.
  • the plunger depression is removed and the valve 5 is closed under the action of a compression spring 4. Exhaled air escapes meanwhile via an exhalation valve not shown.
  • the system 3, 4, 5 with expansion valve is mounted in a substantially tubular body 101 and rectilinear.
  • One end of the body 101 defines the inlet 21 for the breathable gas.
  • the valve system Downstream of the inlet orifice 21, the valve system comprises a valve seat 6 in the form of a ring, a valve 5 intended to cooperate with the seat 6.
  • the valve 5 is mounted at the end of a door valve-3 or piston (or the like) which is pushed towards the seat 6 by means of a compression spring 4 or equivalent.
  • the expansion valve system is of the pressure compensated valve type. That is to say that the valve 5 comprises a central passage allowing the transit of gas from the inlet 21 to a sealed compensation chamber 33 located downstream of the seat 6 ( Figure 2).
  • the compensation chamber 33 is delimited by the body of the valve holder 3 and a mobile support 31 for the spring 4 which will be described in more detail below.
  • the compensating valves make it possible to balance the forces on the valve and in particular allow the valve to be insensitive to the pressure variations that may occur between the upstream and the downstream of the valve. way, the effort required to open the flapper is substantially independent of these pressure variations in this part of the circuit.
  • a first end of the spring 4 bears on the valve holder 3 while the second end of the spring 4 bears against a circular groove formed in the mobile support 31.
  • the movable support 31 is held in a predetermined position relative to the seat 6 of the valve 5 by means of a movable stop 29 mechanically coupled to a manually operable control element 9 projecting from the housing 100 at the other end of the tubular body 101 .
  • the control element 9 is a rotary knob 9 around the axis of the body 101.
  • the control knob 9 is rotatably connected to a movable and threaded inner ring 19 which cooperates with a conjugate tapping formed on the surface
  • the movable stop 29 is secured to the ring gear 19.
  • the crown moves closer (FIGS. 1 and 2) or moves away (FIG. 3). of the valve seat 6 by a distance comprised in an interval A.
  • the movable stop 29 increases or decreases the compression of the spring 4.
  • the rotation of the control button 9 thus enables the user to adjust the mop. -contraint of the spring 4 of the valve 5, which determines the force required to open the valve 5.
  • the inspiration force necessary to open the valve is increased when the compression of the spring is increased and vice versa.
  • the device further comprises a control member 2, 20 of the gas flow admitted to the outlet orifice 1 of the housing 100.
  • the tubular body 101 comprises at least one orifice 2 located downstream of the seat 6 of the valve 5 and opening into the internal volume of the casing 100.
  • the internal volume of the casing communicates with the outlet orifice 1.
  • the gas takes for example longitudinal passages (such as splines) formed between the outer surface of the valve holder 3 and the inner surface of the tubular body 101 (not shown ).
  • a mobile cover 20 comprising a wall substantially concentric with the body 101 is able to conceal or not at least a portion of the orifice 2 ( Figures 1 and 2), to change the flow of gas able to walk to the output 1.
  • the cache 20 is integral with the control button 9 and preferably monobloc with the latter.
  • control button 9 is able to control both the adjustment of the opening force of the valve 5 and the adjustment of the output gas flow 1. That is to say that the user actuates a single control member to adjust the two parameters of comfort of breathing.
  • control button 9 and the crown mechanism 19 may be shaped to simultaneously couple (actuation in a first direction) a decrease in the gas flow (progressive concealment of the orifice 2) with an increase in the effort required at the opening of the valve 5 (gradual compression of the spring 4).
  • the actuation of the control knob 9 in the opposite direction can couple an increase in the gas flow (removal of the cover relative to the orifice 2) with a reduction in the force required to open the valve 5 (gradual decompression of spring 4).
  • FIGS. 4 to 6 illustrate an alternative embodiment which differs from the embodiment of FIGS. 1 to 3 only in that the control of the delivered gas flow rate is ensured by the mobile support 31 itself (replacing the integral wall of the knob 9 order).
  • the movable support 31 comprises an outer surface which slides in the tubular body 101.
  • one end of the movable support 31 may coincide or not coincide with at least a portion of the orifice 2 in view of reducing or not its passage section (length A, Figure 6).
  • the elements identical to those described above are designated by the same reference numerals and are not described a second time.
  • the invention allows a simplified adjustment of breathing comfort parameters of a breathing gas supply device.
  • the invention can not be limited to the examples described above.
  • the pressure compensated valve system can be replaced by a valve system without conventional compensation.
  • the control member may be replaced by a button adapted to be actuated in translation.
  • control element which controls both the flow control and the effort control can be connected to a rod and / or cam and / or pinion mechanism and / or by plastic or elastic deformation.
  • control element can be connected by any motion transmission means to a movable cover system and passageway (or any similar means) positioned before the outlet 1, and preferably between the body 101 and the outlet 1.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Sliding Valves (AREA)
EP07301175A 2006-07-13 2007-06-28 Gerät zur Versorgung mit Atemgas, insbesondere für ein Mundstück für einen Taucher Active EP1878655B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0652971A FR2903654B1 (fr) 2006-07-13 2006-07-13 Dispositif d'alimentation en gaz respiratoire, notamment pour un embout buccal de plongeur

Publications (3)

Publication Number Publication Date
EP1878655A2 true EP1878655A2 (de) 2008-01-16
EP1878655A3 EP1878655A3 (de) 2011-02-23
EP1878655B1 EP1878655B1 (de) 2012-08-08

Family

ID=37890225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07301175A Active EP1878655B1 (de) 2006-07-13 2007-06-28 Gerät zur Versorgung mit Atemgas, insbesondere für ein Mundstück für einen Taucher

Country Status (3)

Country Link
US (1) US7775208B2 (de)
EP (1) EP1878655B1 (de)
FR (1) FR2903654B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2934844A1 (fr) * 2008-08-06 2010-02-12 Spirotechnique Dispositif de soupape a la demande.

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2462672A (en) * 2008-08-20 2010-02-24 Alex Deas Combined rebreather bail out valve and loop volume valve
US20110155771A1 (en) * 2009-08-10 2011-06-30 Brooks Dennis L Method and apparatus for enabling smoother, faster discharge of fluid from containers
US20110132939A1 (en) * 2009-08-10 2011-06-09 Brooks Dennis L Method and Apparatus for Enabling Smoother, Faster Discharge of Fluid from Containers
FR2977790B1 (fr) 2011-07-13 2013-07-19 Sofradim Production Prothese pour hernie ombilicale
FR2992662B1 (fr) 2012-06-28 2014-08-08 Sofradim Production Tricot avec picots
FR2992547B1 (fr) 2012-06-29 2015-04-24 Sofradim Production Prothese pour hernie
PT2931291T (pt) 2012-12-11 2021-12-03 Mclean Hospital Corp Tratamento com xénon como complemento da psicoterapia para perturbações psiquiátricas
US20160008639A1 (en) 2013-03-01 2016-01-14 Draeger Safety Uk Limited Valve assembly
JP6480598B2 (ja) 2015-04-02 2019-03-13 ヒル−ロム サービシーズ プライヴェート リミテッド 呼吸装置用マニホールド
CN110143267A (zh) * 2019-06-19 2019-08-20 彭亚兵 便携式潜水呼吸器

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US4147176A (en) * 1975-06-30 1979-04-03 Christianson Raymond Diaphragm assembly for the demand regulator of a breathing apparatus
DK0433406T3 (da) * 1989-06-06 1996-02-12 Preece T D & Co Pty Ltd Doseringsventil til dykningsregulator
JPH0557031A (ja) * 1991-02-04 1993-03-09 Us Divers Co Inc デマンド呼吸用二次レギユレーター
US5222490A (en) * 1991-09-26 1993-06-29 Dacor Corporation Breathing regulator having air injector feature
US5690100A (en) * 1996-08-23 1997-11-25 Johnson Worldwide Assoc., Inc. Scuba diving breathing regulator
WO2002032757A1 (fr) * 1999-09-24 2002-04-25 Tabata Co., Ltd. Detendeur de plongee
IT250803Y1 (it) * 2000-08-18 2003-10-14 Htm Sport Spa Erogatore per apparecchi respiratori subacquei.
US6513525B2 (en) * 2000-12-13 2003-02-04 Frankie Chen Triplicate diving gas valve device
ITGE20010028A1 (it) * 2001-03-23 2002-09-23 Htm Sport Spa Erogatore per apparecchi respiratori subacquei.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2934844A1 (fr) * 2008-08-06 2010-02-12 Spirotechnique Dispositif de soupape a la demande.

Also Published As

Publication number Publication date
EP1878655B1 (de) 2012-08-08
US20080017200A1 (en) 2008-01-24
US7775208B2 (en) 2010-08-17
FR2903654A1 (fr) 2008-01-18
EP1878655A3 (de) 2011-02-23
FR2903654B1 (fr) 2008-09-05

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