March 14, 1944. c, RQWASEIGE ‘Q 1' 2,344,068 PURIFIER AND OIL SEPARATING APPARATUS Filed April 16, 1941 30 32 ‘ ‘ 27 26 31\§ ~ 3 5 . 25 kgf?. j 4 & l/I’ ya _/-. ” - X, 3 2 /J .7; - /~ 6 9 y l Patented Mar. v14, 1944 ' 2,344,068‘ UNITED ’ - STATES" PATENT OFFICE W - venues’ ii '- r ' ' mm'rcs I Charles Raymond Waseige, Bueil, France; vvested in the Alien Property Custodian‘ Application April 16, 1941, Serial No._'388,8'l7 ' In France April 30, 1940 3 Claims. (Cl. 183-453) This invention relates to a puri?er and oil a gas circuit with the object of separating there from the liquid particles of-oil or the like carried . ' ’ - ' . pressure. a - ._ In~ancther embodiment, the said cylindrical ' body is hollow and its side wall is provided with ducts‘ opening into said groove, the oil to bedis Said invention. more particularly'relates to a puri?er of the kind comprising a cylindrical charged being delivered into said body. The oil is thus centrifugally driven through said‘ducts. chamber in which the air or other gas to be puri?ed is imparted a whirling motion so that - the oil particles settle'on the walls of‘ said cham i bly driving the same into the discharge .‘channel, -’ even when acting against a substantial back-t separating apparatus arranged to be inserted in thereby. - positive discharge of the separated oil-by forci— 10 This centrifugal separator or extractor may also serve as a puri?er if, according to another fea-' her, ?ow down said walls and are- then dis-' ' ture of the invention, the gases to be puri?ed. are sodelivered into said cylindrical body that they circulate therethrough,‘the oil particles in escapes through an outlet provided at the uppe ' 16 suspension thus being centrifugally separated in part of said chamber. ' a charged by means of a‘ channel connected with the lower part of said chamber, while the air In apparatus of this kind as hitherto in use. _ the cylindrical body itself and thrown uponv its the oil discharge channel connects’ ‘directly. peripherical wall from which-they are discharged eventually through a valve, with the inner cham by said ducts. ' ‘ ber of the puri?er.. This arrangement, though , The puri?er according to thisvembodiment may not impairing the operation when the pressure 20 be constructed as an independent assembly in this discharge channel is substantially lower driven by a prime mover-electric or otherwise than that obtaining in said chamber, is however or the aforesaid rotor in accordance to a pre disadvantageous when the oil is to be discharged ferred embodiment may be arranged in the crank into a sump or reservoir the pressure in which is case of a combustion engine and driven by a practically the same as or even greater than 25 driving connection from the engine shaft. that obtaining in the puri?er. In this case, the Another object of the invention is to remove discharge of oil will not be properly effected, as completely as possible the oil particles that and the back-pressure in the discharge channel may settle upon the walls of the outlet of the impairs the operation of the apparatus as a puri?er, which outlet may be conveniently pro-' whole and impedes .the ?ow of the oil. 30 vided with an inner screw thread the pitch of One object of this invention is to' provide a which is in the opposite direction to that of the purifying and oil separating apparatus of the aforementioned type, which is able to operate ~properly even when the oil is to be discharged whirl formed by the air in the puri?er. , In view of this object, in accordance with an feature of this invention, also usable into a sump or reservoir the pressure in which 35 important independently of the features above described, is equal to or higher than that of the gas to be the wall of the aforesaid outlet is provided with puri?ed. Another object is to provide a puri?er more particularly though not solely adaptedto a tangential passage turned in the same direction case of the engine or to a sump or reservoir conduitrconnected with a suction means. as the whirling motion and opening into a small be used in plants on board of aircraft in which the separated oil is to be returned to the crank 40 chamber from which the oil is discharged by a connected with said crank case; a still further object is to provide a, puri?er of the aforesaid kind which may conveniently forni the connec tion between the crank case of an engine and 45 the open air so as to act as a breather. In accordance with an important feature of ‘ In ‘a convenient embodiment the discharge conduit'rof the aforesaid small chamber is con nected to the oil extractor already mentioned. The oil contained in the‘ small chamber is thus sucked by the aforesaid extractor acting as a pump or the like and is discharged together with the oil that has been separated in the body of the invention, the connection between the inner the puri?er. chamber of the puri?er and the oil discharge channel is effected through a separating device 50 ' Other objects and features of ‘e invention will be apparent from the following d scription given or extractor. ' In 'a preferred embodiment, this with reference to the annexed drawing and more extractor is in the form of a cylindrical body the particularly pointed out in the claims. outer side wall of which is provided with a spiral . In the drawing are‘ shown only by way of groove and is ?tted toturn in a cylinder. examples : This extractor acts as a pump and effects the - 2 ascents Fig. Lasectionalelevationofapmi?er ac vacuum or suction caused by the extracting pump consisting of the worm II and the casing cording to an embodiment of this invention; Fig. 2, a fragmentary perspective view of a l2, through the passage 34, into said casing, to be directed therefrom by conduit I8. modi?cation; Fig. 3, a sectional elevation of a puri?er ac In the modi?cation shown in Pig. 2, the chan cording to another embodiment, acting as breather for a combustion engine; Fig. 4, a fragmentary plan view of the rotor of the puri?er shown inl'ig. 3. nel 30 opens into a small chamber II. A Pitot tube 38 arranged vertically and opening opposite to the gas inlet 3 assures the discharge from said chamber ii and produces therein a slight suc— tion. Figs. 3 and 4 relate to a puri?er the body I’ of Aocordingtothetshowninliig. 1. ‘the purifhar comprises avertically arranged hol lowbodylhavinginsldeacylindrlcalchamberi which is secured in the crank case 39 of a com intowhichtangmtiallymaninletpassagei fortheairorother.gastobepmi?ed,saidpas sage slightly slanting downwards The inner wallofchamberiisfacedwithawiregauaeor slevelcan'iedbyadaneiwhichrestsuponan upwardlyfacingshoulder‘lcarriedbythelower partofsaid ,saiddomeibeingprovid edwith peripherical gaps’. Behrwtheshoulder ‘I bustion engine and has a cylindrical chamber 2' closed by a cover 25' provided with holes ill-4|. 15 This body contains. an oil extractor in the form of'a rotor integrally connected with a spindle 4t mounted in ball bearings 48, 4! carried respec tively by the body I’ and the cover 25’. The lower end of said spindle is integrally connected 20 with a pinion gear 60 engaging with a pinion thechamberlisfunnel-likeandleadstoadis gear 6| driven from the engine shaft. The ro tor is in the shape of a cup. The bottom 53 thereof is provided with holes I! and webs 56 are byacapli. Thesleejvellservesasacasingfor provided between the spindle 48 and the annu a worm II, a space lilbeing provided between the 25 lar wall II of said rotor. The latter is provided chargingduct II. Thelatteropensintnacylin dricalsleeve llcaniedbythebodylandclosed endofthetbreadedpartofsaidwonnandthe bottomofsaidcasing. Theductllandapas sagel'lleadingtoadrain-offconduitltrespec tively open into the casing m opposite sides of saidthreadedpart. 'l‘hewormiiismountedon 30' a spindle 2O moimied in a, bearing and project ing outwardly. Said spindle II is provided with a catch pin 22 for coupiingsame with the shaft rotor forces oil downwardly. ' Opposite to the per ipherical rim of the bottom it is an annular groove 62 connecting through a channel III’ with ofanelectricmotorllso?ratsaidspindlemay be rotatingly driven thereby. Thus the cylinder iiandthewormlirotaiingthereinformsapos = the inside of the crank- case. A channel 3' opens into the lower part of the chamber 2’ and deliv itive extractor for the oil, since the oil is forced ers air charged with oil particles. bythewormliintothedrainconduitit. I‘Iprovidedwithawiregame. Theoutlet 251s provided with an inner mew-thread the pitch of whlchisinanopposite dimctiontothe whirl ingmoiionimpartedtotheairenteringthrough theei. Aslantingdmt3l,openingtan gentially into the outlet 26, connects the latter withachamber 3i ionnedinthecover 15, said chamber beingclosed byaplug 32. ‘Die bottom of this chamber 3| inclines towards an outlet passage 34 leading to the aforesaid space I6 at _. through the holes of the wall 59 into the spaces between the rib portions'and is driven by the web portions into the groove 62, from‘ which it falls back into the crank case through the chan nel Ill’. The purified air is discharged through i the holes 40, 4|. The invention obviously is in nowise limited to the embodiments shown and described by way of examples. Thus particularly the puri?er ac cording to Figs. 3 and 4 may be constructed in the form of an independent assembly and driven _ by an electrical or other motor. What I claim is: l. A puri?er and oil separating device for com pressed air and other gases including a cylinder, a hollow cylindrical body having radial perfora therightendofworm Ii (asshowninFig. Din casing“. This air is admitted by the holes 65 in the rotor, by which it is centrifugally separated. The oil particles ?ow Thechamberiisclosedatitsupperpartbya cover 25 having centrally a cylindrical outlet 26 through which the puri?ed air is to be dis charged, said outlet being surmounted by a cap with radial holes extending throughout its an nular wall 59 and its outer surface is provided with a spiral rib 6| substantially engaging with the cylindrical inner wall of the chamber 2' of the puri?er. The rib II is a screw-thread the pitch of which is such that the rotation of the ' Theairorthelikeenterlngintothechamber 2 through the passage 3 causes a downward tions cn its side walls and provided with a spiral groove in the external face of its wall and rotat whirling ?ow along the cylindrical wall of said chamber, andthe particlm of oil carried in sus ably ?tted within said cylinder, oil discharge means from said cylinder, said hollow body hav upon the dome ‘,being then_directed through ing a perforated bottom, means for supplying the tbeholeslandthepassagelltothecasingil, on gas to be puri?ed into said hollow body through fromwhichtheyarerurwvedbytheworm l5 said perforated bottom, and means for rotating drivenbythemotorilsothatthey are forcibly said hollow body. pensionareretainedbythewiregauzeiand?ow drivenintotheconduit llevenifabackpres sureobtainsinsaid conduit, asisthe case, for examplewhensaidcmduitleadstoihecrank caseofaenginetothehreathertube ofwhichthepassagelrnayheconnectedI Thepuri?edairucapesthrnughtheoutletli. Theoilpariieieswhichmaysiillbecarriedin suspemion?ierelnset?eonthewallofsaidout letandreturntothechamberiby?owingalong thethreadofsaidoutlda. 'nielastparticles?ow tbroughthedmtilinto?remallchamber? frolnwbichtheyaredrawnclltbrtberelative 2. A puri?er of the typedescribed including a u reservoir, a cylindrical chamber, an inlet con dult for the material to be treated, outlet con duits and a discharge conduit into the reservoir, a rotatable cup shaped member having inlet ori does in the bottom and perforations in the side 10 walls thereof journaled within the chamber, the material to be treated entering said member through the ori?ces in the bottom thereof and through centrifugal action being separated therein. the separated material passing through TI the perforations in the side walls. and an ester 2,344,088 ml spiral rib on the cup shaped member having ' 3 rotary cylinder with a Ioraminous side wall ar ranged for rotation within said chamber and a spiral rib on the outside of the cylinder adapted a downward pitch for forcing the separated ma terial through the discharge conduit and into to advance the oil passing through the cylinder the reservoir. 3. A puri?er and oil separating device for gases 5 toward the discharge conduit. comprising a cylindrical separation chamber, an CHARLES RAYMOND WASEIGE. inlet thereto, a discharge conduit therefrom, a
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