EP0041194A1 - Dispositif pour la limitation automatique de la vitesse d'ascension lors de la remontée d'un plongeur - Google Patents

Dispositif pour la limitation automatique de la vitesse d'ascension lors de la remontée d'un plongeur Download PDF

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Publication number
EP0041194A1
EP0041194A1 EP81103933A EP81103933A EP0041194A1 EP 0041194 A1 EP0041194 A1 EP 0041194A1 EP 81103933 A EP81103933 A EP 81103933A EP 81103933 A EP81103933 A EP 81103933A EP 0041194 A1 EP0041194 A1 EP 0041194A1
Authority
EP
European Patent Office
Prior art keywords
valve
chamber
life jacket
closing part
membrane
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.)
Withdrawn
Application number
EP81103933A
Other languages
German (de)
English (en)
Inventor
Theo Birle
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19803019993 external-priority patent/DE3019993C1/de
Priority claimed from DE19803028070 external-priority patent/DE3028070C2/de
Application filed by Individual filed Critical Individual
Publication of EP0041194A1 publication Critical patent/EP0041194A1/fr
Withdrawn legal-status Critical Current

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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
    • B63C9/00—Life-saving in water
    • B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
    • B63C9/087—Body suits, i.e. substantially covering the user's body ; Immersion suits, i.e. substantially completely covering the user
    • B63C9/105—Body suits, i.e. substantially covering the user's body ; Immersion suits, i.e. substantially completely covering the user having gas-filled compartments
    • B63C9/1055—Body suits, i.e. substantially covering the user's body ; Immersion suits, i.e. substantially completely covering the user having gas-filled compartments inflatable
    • 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
    • B63C11/04—Resilient suits
    • B63C11/08—Control of air pressure within suit, e.g. for controlling buoyancy ; Buoyancy compensator vests, or the like
    • 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
    • B63C11/32—Decompression arrangements; Exercise equipment

Definitions

  • the invention is directed to a device for automatically limiting the rate of climb when divers emerge.
  • the invention has set itself the goal of creating a device that is simple and inexpensive to manufacture, that is durable and reliable even under harsh operating conditions, which in any case, also in the event of exceptional emergency situations, ensures that the diver does not join rises at high speed and suffers life-threatening injuries.
  • a device of the type mentioned at the outset which is distinguished by a chamber connected to the interior of the life jacket, with a dividing wall that divides it, is elastically longitudinally movable, and which is connected to a valve-closing part which can be moved in a sealingly displaceable manner and whose associated valve seat in the life jacket outer wall is arranged, the chamber sections formed by the partition wall being connected to one another by a metering nozzle and a check valve opening in the direction of the closed chamber section.
  • This automatic regulation ensures that the diver does not ascend too quickly even if he panics or cannot consciously and deliberately check the ascent process due to severe dizziness or unconsciousness.
  • An advantageous embodiment of the invention provides that the partition is designed as a spring-loaded piston. Such a piston is then sealingly guided along the side wall of the chamber and is pressed into the starting position by a spring.
  • the check valve and the metering nozzle are arranged in the piston. This means that the piston between its end faces has the nozzle and the check valve receiving bores, whereby a particularly simple construction is achieved.
  • the partition is designed as a membrane and the valve closing part is fastened in its central region.
  • the outer edge of the membrane is tightly connected to the chamber outer wall and the valve closing part is attached where the maximum movement possible due to the elasticity of the membrane occurs when the membrane is under pressure.
  • the reset takes place without any problems due to the inherent elasticity of the membrane.
  • the connection of the two chamber sections formed by the membrane takes place by means of two lines which lead to the outside around the membrane area, one of which leads via the check valve and the other via the metering nozzle.
  • the metering nozzle is provided with a device for regulating the throughput.
  • the metering nozzle is dimensioned so that it produces sufficient pressure compensation between the at normal or permissible ascent and descent speeds the chamber sections allows.
  • the proposed adjustment of the throughput of the metering nozzle has proven to be favorable.
  • the device according to the invention is finally expanded by the fact that the movable partition is coupled to a display device.
  • the diver can see from the display device in such cases where he can consciously control the change in depth whether he is in a critical range with his climbing speed.
  • a particularly hard-wearing embodiment is achieved in such a device by a first chamber, which is at least partially delimited by an elastic wall with respect to the surrounding water, and a second chamber with a sealing partition that closes it and is longitudinally movable in one direction, with a valve closing part is connected, the associated valve seat is arranged in the life jacket outer wall, the first and second chambers being connected by a metering valve.
  • the function of the resilient wall of the life jacket in this embodiment takes over the resilient wall of the first chamber, which can deform under the pressure of the surrounding water and depending on it, and thus leads to a pressure change in the first chamber, which occurs when it occurs gradually through the metering valve balances itself with the pressure in the second chamber. If the pressure change in the first chamber takes place too quickly, the throughput of the metering valve, which is adapted to a predetermined maximum rate of climb, is no longer sufficient to enable pressure equalization in chamber 2 via the metering valve. The amount of air enclosed in the chamber 2 therefore presses on the one-sided longitudinally movable, sealing partition, for. B. a membrane which is connected to the valve closing part. This leads to an opening of the life jacket valve and thus to a decrease in the rate of climb until the entire arrangement is again in pressure equilibrium.
  • first and second chambers are separated from one another and the metering nozzle is arranged in a connecting line between the chambers.
  • the possible uses of the described device are not only limited to their use by divers, but also include diving devices of all kinds, e.g. B. also submarine diving rescuers.
  • a chamber 1 which is sealed off from the outside is connected to the interior 3 of the life jacket 4 via a connecting line 2.
  • a piston 7 which is longitudinally sealingly displaceable relative to the side walls 5, 6 of the chamber.
  • the piston has two bores 8 and 9, the first of which receives a check valve 10 and the second a metering nozzle 11.
  • the piston 7 is connected to a valve closing part 12, which is sealingly guided to the outside through the bottom wall 13 of the chamber 1 and has a hemispherical end 14. In the idle state, this end 14 lies against the valve seat 15, which is fastened in the outer wall of the life jacket 4.
  • a coil spring 16 is arranged concentrically around the valve closing part 12 between the chamber bottom 13 and the piston 7.
  • the chamber 1 is in turn connected to the interior 3 of the life jacket 4 via a line 2. Clamped between the side walls 5 and 6 of the chamber 1, a membrane 17 is fastened in a sealing manner. The valve closing part 12 is fastened to the membrane 17. The chamber halves 18 and 19 formed by the membrane acting as a partition are connected by lines 20 and 21, each of which opens into the interior of the chamber above and below the membrane 17. A check valve 10 is arranged in line 20 and a metering nozzle 22 is arranged in line 21. The throughput of the metering nozzle 22 can be changed by means of an adjusting device 23.
  • the life jacket 4 expands rapidly due to the decreasing water pressure, so that the air pressure in the interior of the life jacket 4 and in the chamber section 19 drops quickly, and this drop also through the metering nozzle 9 or 23 cannot be compensated. Due to the resulting negative pressure in the chamber section 19 relative to the chamber section 18, the partition, the piston 7 or the membrane 17, together with the valve closing part 12 connected to it, is moved downward, so that air can flow out of the interior of the life jacket 3 through the valve opening 24 , which reduces the buoyancy of the life jacket and thus the rate of climb.
  • the metering nozzle 9 or 23 in the chamber sections 18 and 19 sets the same pressure again, and the partition is returned to the starting position together with the valve closing part 12. This is done in the case of the piston 7 by the Restoring force of the coil spring 16 and the diaphragm 17 due to its inherent elasticity.
  • the point in time at which the valve 12, 14, 15 is opened that is to say the maximum rate of climb, also depends on the depth, so that it is ensured at the respective depth that the maximum tolerable speed is not exceeded, but on the other hand the entire ascent distance is covered in the shortest reasonable time.
  • the device according to the invention comprises two chambers 101 and 102 which are delimited by a fixed lateral wall 105.
  • a common intermediate wall 106 separates the two chambers 101 and 102.
  • the upper final transverse surface of the chamber 101 is formed by a membrane 107 which is fastened to the wall 105 in a sealing manner.
  • the chamber 102 is closed at the bottom by a membrane 108, which is only movable outwards, that is to say downwards in the drawing, since it is essentially in a flat position towards the inside of the chamber 102 through a screen-like cover 111 provided with holes 110 is held.
  • the common wall 105 of the chambers 101 and 102 is connected to a holder 112, which in turn is sealingly connected to the outer jacket 104 of the life jacket.
  • the bracket 112 also includes a valve assembly 113 disposed on an opening 114 of the life jacket 103.
  • the valve closing part 115 in the valve seat 116 is in the closed position.
  • a coil spring 117 presses the diaphragm 108 against the valve arrangement 113 and thus that Valve closing part 115 in this closed position.
  • Bores 118 in the holder 112 allow air to escape from the interior of the life jacket 103 when the valve 113 is open.
  • the device works as follows: when immersed, the water pressure rises continuously, as a result of which the membrane 107 is pressed increasingly inwards, while the membrane 108 is held essentially in its position by the sieve-like wall 111. A continuous pressure equalization takes place through the metering valve 109.
  • the elastic membrane 107 When surfacing with a sufficiently slow, harmless rate of climb, the elastic membrane 107 gradually returns to the starting position shown in the drawing, as a result of which the pressure of the air volume enclosed in the chamber 101 decreases. Air therefore flows from the chamber 102 into the chamber 101 through the metering valve 109, which is under higher pressure due to the water pressure at greater depths. In this way, the pressure in the chamber 102 is reduced and the membrane 108 remains essentially flat in their position.
  • the throughput through the metering valve 109 is no longer sufficient to bring about a pressure equalization, so that due to the still high air pressure in the chamber 102 and the decreasing external water pressure, the membrane 108 bulges outwards, which leads to that the valve closing part 115 is lifted off the valve seat 116 and air can escape from the interior of the life jacket 103 through the opening 114 and the bores 118 and the rate of climb is thus reduced.
  • This valve can also be designed as a check valve or as a throttle check valve, which is closed during normal, controlled emergency ascent.
  • the spring pressure of the non-return or non-return throttle valve must therefore be designed in such a way that from a certain limit overpressure in chamber 102 there is (possibly only partial) pressure equalization between chamber 101 and chamber 102.
  • the excess pressure in chamber 102 would, however, be rebuilt immediately if the ascent was too rapid. This would result in an intermittently braked ascent, which is, however, within a medically acceptable range.
  • This arrangement is particularly applicable to emergency ascents from submarines at extreme depths by trained personnel.
  • a pressure relief valve 227 and a valve 208 is arranged in the intermediate wall 206, the latter ensuring that when the diver in front of the surface, for. B. five meters below the same, has reached a pressure equalization between the two chambers 201 and 202.
  • the mode of operation of the valve 208 is as follows: the membrane 207 is pressed on by the water pressure. Air flows through the nozzle 209 and partially through the valve 208 into the chamber 202 and the area above the membrane 208 '. Due to the grid 211, the membrane is not pressed in. From about 1 bar overpressure, the membrane 207 presses on the closing part of the valve 208 and keeps it closed.
  • the membrane 207 bears against the walls of the chamber 201.
  • the air flows from the chamber 202 through the nozzle 209 and from a pressure of approx. 1 bar back through the valve 208 into the chamber 201.
  • Membrane 208 which is pressurized by spring 217 does not move. If the surface emerges too quickly, the air cannot flow back through the nozzle 209 quickly enough, the membrane 208 ′ bulges and presses down on the rocker-like construction 218 the right arm of the rocker in the drawing, so that the air flows out of the buoyancy body.
  • the membrane 207 presses up to z. B.
  • valve 208 0.5 bar overpressure on the valve 208 (since part of the air is still in chamber 202) and then immediately opens the pressure compensation between the chambers 201 and 202.
  • the rocker arrangement 218 then closes immediately. If the surface emerges too quickly, the membrane 207 presses the valve 208 to an excess pressure of 0.5 bar, since the pressure drop between the chambers 201 and 202 is smaller during a normal ascent than during a rapid ascent, ie the valve 208 ensures that if there is only a slight overpressure, the membrane 209 is not bulged, which would keep the flap on the life jacket open too long. This ensures that an unconscious diver can be held on the surface.
  • the influence of the device by the excess pressure depends on the elasticity of the membrane 207, the size of the valve closing part of the valve 208, the distance of the membrane 207 from the intermediate wall 206 and the valve 208 and on the ambient pressure. This can also be achieved by the pressure relief valve 227, which is installed between the chambers 201 and 202 (intermittent reaction possibility).
  • the flow rate of the nozzle 209 can be indirectly adjusted by the spring 217. Higher spring force means greater pressure in chamber 202, ie greater Flow through the nozzle 209, since the pressure difference between the chambers 201 and 202 is greater than with a small spring pressure.
  • the device can be individually adapted to the respective dive with a relatively large basic nozzle, blocking being achieved by a large spring force and a response being achieved even at normal ascent rate by a small spring force.
  • a device 219 for manually actuating the seesaw device 218 is also provided as a quick stop device, the seesaw device simultaneously acting as an overpressure device which prevents the life jacket from bursting.
  • the membrane 208 ′ is arranged at a distance from the screen-like wall 211.
  • the device according to the invention is screwed onto the valve thread of the life jacket at 220, so that the valve closing part formed by the second lever arm 221 of the rocker arrangement 218 reaches the sealing contact with the outlet or inlet opening of the life jacket.
  • a magnet 222 is arranged above the membrane 208 ′′ which is connected or metallized with a ferromagnetic metal plate and which seals the membrane 208 ′ and thus the closing part 221 holds in the closed position so that the opening through the closing part 221 occurs spontaneously when the magnetic holding force is overcome by the pressure difference which arises.
  • the magnet 222 ′ it is within the scope of the invention to also arrange the magnet 222 ′ in the region of the closing part 221.
EP81103933A 1980-05-24 1981-05-22 Dispositif pour la limitation automatique de la vitesse d'ascension lors de la remontée d'un plongeur Withdrawn EP0041194A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19803019993 DE3019993C1 (de) 1980-05-24 1980-05-24 Vorrichtung zur selbsttaetigen Begrenzung der Steiggeschwindigkeit beim Auftauchen von Tauchern
DE3019993 1980-05-24
DE3028070 1980-07-24
DE19803028070 DE3028070C2 (de) 1980-07-24 1980-07-24 Vorrichtung zur selbsttätigen Begrenzung der Steiggeschwindigkeit beim Auftauchen von Tauchern

Publications (1)

Publication Number Publication Date
EP0041194A1 true EP0041194A1 (fr) 1981-12-09

Family

ID=25785678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103933A Withdrawn EP0041194A1 (fr) 1980-05-24 1981-05-22 Dispositif pour la limitation automatique de la vitesse d'ascension lors de la remontée d'un plongeur

Country Status (3)

Country Link
US (1) US4437843A (fr)
EP (1) EP0041194A1 (fr)
WO (1) WO1981003313A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141975A (en) * 1983-06-22 1985-01-09 Ian David Lockley Recovery of sunken objects
FR2563012A1 (fr) * 1984-04-11 1985-10-18 Graillon Patrice Tachymetre de remontee sous-marine
EP0721883A1 (fr) * 1994-01-03 1996-07-17 Daniel Biran Appareil de plongée avec contrÔle de profondeur

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5570688A (en) * 1993-11-17 1996-11-05 Cochran Consulting, Inc. Advanced dive computer for use with a self-contained underwater breathing apparatus
EP0721882A1 (fr) * 1995-01-11 1996-07-17 Daniel Biran Appareil de plongée avec contrÔle de la vitesse ascensionnelle
US5496136A (en) * 1995-03-23 1996-03-05 Egan; Mark P. Automatic buoyancy compensator with electronic vertical motion
US5542446A (en) * 1995-08-08 1996-08-06 Rose; Richard H. Scuba buoyancy control valve
US20070248419A1 (en) * 2006-04-21 2007-10-25 Scuba Developments, Inc. Buoyancy control apparatus for underwater swimming
IL259545A (en) * 2018-05-23 2018-06-28 Cohen Galit An automatic buoyancy generator mounted on an article of clothing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB911739A (en) * 1960-01-30 1962-11-28 Alinari Carlo A decompression stage indicator for divers
FR1429303A (fr) * 1964-11-18 1966-02-25 Vilarrubis Y Sague Perfectionnements aux vêtements pour plongeur sous-marin ou scaphandrier
GB1131230A (en) * 1965-04-16 1968-10-23 Aquitaine Petrole Sequential programmers for automatic decompression
DE1673537A1 (de) * 1966-06-22 1971-06-24 Westinghouse Electric Corp Automatische Druckentlastungsanlage
US3866253A (en) * 1973-01-08 1975-02-18 Dacor Corp Divers buoyancy vest
GB1532411A (en) * 1975-12-22 1978-11-15 Pope D Bouyancy regulation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB911739A (en) * 1960-01-30 1962-11-28 Alinari Carlo A decompression stage indicator for divers
FR1429303A (fr) * 1964-11-18 1966-02-25 Vilarrubis Y Sague Perfectionnements aux vêtements pour plongeur sous-marin ou scaphandrier
GB1131230A (en) * 1965-04-16 1968-10-23 Aquitaine Petrole Sequential programmers for automatic decompression
DE1523393A1 (de) * 1965-04-16 1969-02-13 Aquitaine Petrole Schaltungsanordnung zur selbsttaetigen Druckminderung mit Reihenprogrammierer
DE1673537A1 (de) * 1966-06-22 1971-06-24 Westinghouse Electric Corp Automatische Druckentlastungsanlage
US3866253A (en) * 1973-01-08 1975-02-18 Dacor Corp Divers buoyancy vest
GB1532411A (en) * 1975-12-22 1978-11-15 Pope D Bouyancy regulation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141975A (en) * 1983-06-22 1985-01-09 Ian David Lockley Recovery of sunken objects
FR2563012A1 (fr) * 1984-04-11 1985-10-18 Graillon Patrice Tachymetre de remontee sous-marine
EP0721883A1 (fr) * 1994-01-03 1996-07-17 Daniel Biran Appareil de plongée avec contrÔle de profondeur

Also Published As

Publication number Publication date
WO1981003313A1 (fr) 1981-11-26
US4437843A (en) 1984-03-20

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