Breathing gas supplying device for diver

. 1 ZOlZ4 ~ The pr ~ Salt ~ te invention concertle heart, respiratory engaz supply device, especially for diver's genreconprenant in a boltier, a means brought to a gas respiratoireincorporant a dCi valve relaxation clu admitted gas rises on a pistoncoulissant ~ opening clarls a cylinder under the action shall a tiae depiston to axial movement, which is m ~ l ~ e conTnandée by a lever whose free uneextrérnité rests against a diaphra ~ flexible re Ic boîtierprésen-as an opening to an inspiration of leads -expiration seterrninant by a buccal eirbout. This kind of perm device ~ t 12 available to del user amounts of respirable gas just suffisantcs and lapression of envirolmant environment through the diaphra ~ e which takes conptela essentially variable pressure of the surrounding rnilieu, tardis that ler, ~ yen d anænée breathing gas, clu type expansion valve, assurela final relaxation of the ga ~ breathing was préalablen ~ nt ~ ect. ~ iu àn ~ yenne pressure in the first key stage c ~ tent on the deréserve bottle of breathing gas available to the utilisateur.Or, the cietentes gas, which are necessary iu fonctionnementdu device alin ~ niation, cause each time that they occur, that is to say, the respiratory rate in the respiratory engaz supply device, inportante quite cold prcduction. If lesproblèmes caused by the production of cold 2U level regulator depremier floor can be solved easily, iI n leaves no i ~ êmedans the dispositi ~ respiratory incorporating, ccnrne is the reminder ~ plu5haut a crew needed sanity moving parts. These differ piècesse your-coo ~ issent and when, exernple a diver moves ina water the ten-ture is close to 0C, the tenperature of piècesénorlcées above falls below 0C. The air exhaled by the plongeurétant saturated with moisture, this hu ~ idity in contact parts froidesse transfornie ice and causes blocking of the parts by yivrage, CeQui is reflected at the cl device alirnentation by a maintiepermanent in the valve opening position and a continuous adrnission respiratory Degaz in the housing, which will greatly g ~ larespiration plonyeur.La the present invention relates to a device alimentationrespiratoire cl where this locking hlconvénient the rooms by ~ ivrage estécarte résult2t and this is achieved in that the piston rod presents uneextension resulting in a support slid open to said rod, nénagédans said housing opposite to the means to supply expansion valve, and. ~ :. . . .:: :::. : - .. ~:,. ',,:, Z ~ in that the lever acts on ccrrrnande I' extr ~ ree key laditeextens mity I i is ti ge .In away and the maxirr ~ m of the valve stem and clétente the decolrmande I articulation of corrnande lever on the rod, thereby onéloigne rl ~ not the generator area of the cold CLEUX piècesarticulées between the el that tended to blGquer in positiond'ouverture valve, that is to say in a position where the andthe cold gas clébit are prGduits continu.Selon in a particul appearance 1 st invention, at least ur, edes parts of I iaison rrécanique between the piston and the diaphra ~ do ~ estconstituée FA is to imitate I transfer heat flow between cesdeux elements. Preferably at rr ~ ins a Key following: ti ~ ec episton, piston, piston rod extension is real ized in rr, Ateri ~ iutllerlniquerlent not horn, driver!. Cn carprend these dispositionsaccroîssent still the key heat transfer difficulties between the clapetet hinged parts, stem and levier.Les characteristics and avantz es ~ 1 invention ressortirvnlcJ'ai I their descr iption c-, ui follows with reference to the drawing annexed Dansi eque i- 1 is a sectional view of a gas supply device for re respi ratoi plon ~ eur under rrarin - 2 is a vua top of this m ~ r ~ disposifif cl ' alir ~ ntation.En referring to the accompanying drawing, an al ~ irr device entationen respiratory gas cornporte a housing 1 delimited by a base 2 to 3 and a flexible paroilatérale diaphragrre 4 crimped onto the periphery of the lid 3 by a paroilatérale 5 perforations 6, a button is pressed further equipped Fitness al imentatioll forced 7. CNRA, e is the corrprend, Ledia, flexible chraane 4 is subject to an outside either side of I lapression ronnante envi water of and other inner side lapression breathing gas, which is collected has the I'inspiration boitier1 I and referred to expiration by a conduit mouthpiece 9 in this r ~ rneboîtier 1 or i I escapes through a valve overpressure ~ ted nonreprésell) .The pressure of the breathing gas is regulated in functionof the pressure of the surrounding I mi Gd and duplongeur respiratory dernande by means of an elbow lever 11, one end 12 carries surune support plate Central 13 of the diaphragm 4 and whose sister, another e:,. . ~ ~ ,,. . . ,. , ~, ..; . ': ~ .. ..:. . . :: ~:, ~. :. . ::,::., - ~ 3 ~ 2 ~ Z extremi-side 1L ~ en ~ erl coopdre agerr, contact ent with extrtrnité libred'une IC pin received coulissernent in a passage 17 of a carrier detige 18 him-n rr ~ e rronté in the side wall 3 of the housing 1 with jointd'étanclleité conprirné 19 by a screw cap 20. Avantageuserr, d, I'extrémité 111 tern1ine forked ~ 13 whose bearing ranchesviennent against a transverse edge of ull 15nlonté adjusting nut at the end of the rod 16.A the extreme ~ ~ put away the rod holder is 1 ~ ayencé the rnoyend'injection ~ e ~ az breathing 21 to trigger co ~ aking, through unpassa e ~ 22 ~ 12 wall lat eral ~ 3 m cylindrical body 23 receiving unerr ~ ae out connector 24, which connects a driving rnoyenrle pression25 forming if I ~ 26 to a valve 27 mounted on a piston 31 in boutd'une Tiye 28, all soilicité towards ferr ~ ture bya valve spring c ~ npression 29. the rod 28 is coupled by screwing in 30avec the ti ~ e 16, which adjust the perrnet lon ~ e ~ ueur this enserrble, the fonctionnernent the device is classic under the effctd'une tran ~ ise inspiratory depression conduit 9, the diaphra ~ n ~ 4s'affaisse, making the lever 11 in pivGter the sense of rnontre aiyuillesd'une and move the 16-28 crew left, therefore emerges leclapet 27 from its seat 26 and permitting has ~ rnission of gazrespiratoire. In contrast, the expiration of the plunger removes 12dépression and aéplace rnobiles the elements in the opposite direction, the I'ensen ~ 16-28 tiaes from 27-2 to flapper closure ~ derappel by the action of the spring 29, and the exhaled air escaping through the soupaped'expiration (not shown) .With the provision of the lever 11 which is spaced at maxin ~ rr; the pressure reduction valve and 26-27 through 16-2 ~ extension of the rod depiston, this lever 11 and its articulation on the shaft 16 are plussoumis the direct cooling effect at the valve-relaxing 26-27 and freezing risks at this level are pratiquerr ~ ntécartés. In addition, further decreases the risk of icing by uneréalisation nonconductive material therrniquernent of certain parts, such as rods 16 and 28 and the piston 31, or by conforrl ~ ation death parts. .....