Патент USA US2106218код для вставки
Jan. ’ 25, 1938.- J. H. KRIECK 2,106,218 . FILTERING APPARATUS Filed April 10. 1936 ATTORNEY. y Í’zgicsgls- ’ uNl'rEof s'l'A'l‘ssl PATE-NT olé‘rflcs 'I _ y - 2.166.213 _ _ mmmo mamans' .um ns1-leek, Newark, N. J. ¿muessen spell' 1o, leso, sei-u1 No. nous. _e (cl. zio-mi parts throughout theseveral views, and the fo_l-.. ' This invention relates to improvements in nl tering apparatuses, and is especially intended for i filtering oil in connection with lubricating sys-f tems o_i internal combustion Yengines or the like, 6 or with fuel oil~ lines of Diesel engines, or with' lowing specification. _ _ I. IIe is a substantially open cup-'shaped- casing of cylindrical conñguration. having an outwardly flanged top II, a slightly reduced lower portion 5 - I2 forming a shoulder“ where it is joined to ’_ nection with the filtering of any liquid where the ‘ a slightly larger top portion Il and a bowl shaped bottom I B forming a shoulder I’ with the v removal of impurities therein' is paramount. _supply lines tooil burning systemaor Vin con It is one of the objects o! the invention to . reduced portion I2. 10 provide in an apparatus oi'this kind, a series of filtering elementswhicb cause an especially high percentage of impuritiesto be extracted from the _ oil or liquid passing through the apparatus. Another object is to provide a duid-tight seal 15 between those portions oi the apparatus «con taining, respectively, unfiltered and ñltercd oil whereby all unñltered oil is forced to pass through the iiltering elements. ' ' Il is an inlet nipple fastened to the side of 10 the top portion I4 and is providedwith a rela tively large inlet Il. The bottom .of theV casing lo. has» suitably secured to it by e. ñangef II, an. outlet nipple zu‘nsvlng e relatively small out» -ietl passage 2|.and` an outlet pipo 22 preferably l5 hreaded into it. Y . - 23 is a closure to the open top o! the casing I 0 being oi substantially circular shape and hav-v ing an annular groove 2l at its bottom to nt over Another object is to provide ina device of _this _ the outwardly iianged top II of the casing, a re- 20 silient gasket N__in the groove electing a iluid-' tight'V seal therewith. The top of the closure is velocity of the oil is greatly reduced before en rounded at 28 and is provided with a. central 20 kind a, unique form of principal ñlter element which is provided with novel means whereby the tering the n_lter element and with rui-ther means 21. to permit its-easy removal for purposes oi re-v boss 28 is a support bracket for the casing IO'con- g5v ’ 25 placement, repair or examinationand without the sisting of a substantially vannular ring 29 hav- ' aid of Ispecial tools.`v - A further object is to provide means in the ap- _ ing a round bore 2B in its center _wlthan en paratus which permit by-passing of oil in case larged portion 3l forming a shoulder l2 adapted ~ the filtering elements should have become clogged to contact supportwith it. shoulder 33 is a _ I3 i'rontwardly ofthe casing extending IIl and 8o _80 up and thus prevent an» interruption of the oil projection of the. ring 29 provided with a tapered Supply. _ _ A still further' object is to provide the appara-v rectangularly shaped opening 24. Ring 2B is ex' tus with novel means for suspending or attach- ' tended rearwardly and provided with an upward ing it to a suitable place, these means at the same ly extendingv angle. plate 25 connected by _ribs 3l v 85 time serving> to close the apparatus effectively to a support plate 21 which is provided with holes '86 38 >for suitably bolting the bracket to a structure, , -mtîking its entire removal a' particularly simple andiwith two frontwardly, and downwardly «lx‘_ ’ Other obiects and advantages will become 'ap >tending spaced apart lugs $9. . is a yoke of substantially Y-shape, .having parent aitera perusal oi' the following speciñ- I a lll thickened 'central portion- II provided _.with. a 40 4° cation and an inspection of the accompanying point 42 at its bottom to engage thecentral boss ` drawing in which a preferred embodiment of the - - s p. _ ~ . » _ ' invention is showin ' In the drawing, _ - Y _ ' - t ._ 21 o! the top of the closure 23. A single central ' - 'leg 43 oi they-shaped yoke ‘ß extends front-, . . ’ Fig. 1 is an elevational front view o! a ñlterlng ‘5 apparatus; wardly .and is slotted at M, its top where slotted being slightly inclined inwardly at Il, as `clearly 45 shown in Fig. 2. . Its two rearwardly extendinß rig. 2 ls e. longitudinal seetlofiel view along-'une- legs 4S are thickened at their ends at 41 and plane of line 2-2 in Fig. l: provided with grooves Il Íto engage the two lugs ‘ _ Fig. 3 isa plan view of the device; 50 _ d Fig. 4 is a plan view of the principal iilter ele-_ ment partly in section: and . . Fig. 5 is a. fragmentary sectional view drawn to an enlarged scale of an additional nlter ele , men 55 . - Y - ' Like characters of reference denote similar -39 ofv the support plate 21. - ‘ ` aslsaboitliavlngeneadnensaslnstneon- so derside of _the Tproil'action 23 o! the support bracket 2l, a square-shaped portion Il adjacent ~the head engaging the aperture 2l therein, and l a. threaded end`52 disposed between the -slot il o_rtlleyoke ¿n.sndawlngnut B__lbearingupon el 2,106,918 the inclined top I5 of the end of the leg 43 of tacts with the central. boss 31 and is forced` against it by tightening the wing nut I3 on bolt 6'4 is a principal filter element consisting of a ' Il against the inclined top. l! of the front end ?llter bag 55 of preferably double layers 56 of of leg 43, theinclined surface preventing the a suitable cotton fabric or the like. The. open wing -nut from .slipping off the leg while tighten top _of the bag is looped to receive and hold a ing. - The bolt“, being fitted in the tapered ring 51 of preferably spring metal, separated at hole ‘34 ofthe support bracket 23 can be tilted one point, as at Il, to provide adjustment. The outwardly to clear the yoke 43 when ,desired to fragmentary sectional part of Pig. 4, clearly open the device. Y shows this construction. Attention is now particularly drawn to the fact 4Fitted tightly within the bag is a filter unit 53 that the yoke by its unique construction con consisting of helically wound multi-ply layers tacts withthree spaced points, namely the ends of thin filter pamr or the like. This paper is of of the two rearwardly extending legs with the the usual kind having a crinkled vsurface and support bracket and the end of the front leg 15 longitudinal short grooves. The top of the ill ' with the 'wing nut of the bolt _là and that by l5 ter unit 59 terminates somewhat below the top tightening this wing put, a uniform pressure is of the filter bag 5S. ' concentrated by a single Ltightening operation ' 59a is a loop of oord across the top of the upon the center of -the closure plate 23. This filter bag 5l and above the filter unit 59 for causes a tight joint to be made between the clo v20 convenient handling of the bag and for other ' sure plate and the top flange of the casing _Il 20 purposes specified hereafter. The filter bag 5B' and the casing to be securely held with> its . with the filter unit 59 is inserted into the casing shoulder I3 against the support bracket 2l. The I0 so that the loop with the metal ring 51 rests v coil spring .$1 exerts a pressure against the dis the yoke 43. ' against the shoulder I3. 1 ‘ _ A circular distributor disc 60 has an upturned »and outwardly extending flange 3| adapted to rest upon the top of the bag Blite lower depend ing and angularly disposed portionl ñtting be tween the loop tending to spread the ring. 62 so are openings through the d_isc. To the center of-A the disc is attached a downwardly extending by pass tube 63 having a ball check Il held by a spring 65 against an inlet opening 36. The lower end of the tube extends through the filter unit 35 59 and- the bottom oi’- the bag 53 and terminates `somewhat above the final outlet 2| from the casing I0. 61 is a coil spring above the distribu tor disc 80, its upper end contacting with the bottom >of the closure 23, thus forcingthe dis tributor disc tightly against the top of the bag 55 and, the top of the bag tightly against the shoulder I3. whileby spreading the ring 51 the disc forces the sides of the top of the bag against the inside wall of the casing. 45 _ . Resting against the shoulder I3 at the bottom of the casing Il and having a press fit with its inner wall is an additional filter element 33 con 'tributar disc 63 and forces it tightly against the ‘ top end of the bag 3l which rests> also against 25 the shoulder I3 inside ofthe casing I0, the lower ' tapered portion of the disc 33 entering, as ex plained beforel the loopat the top of the bag like a wedge and thereby expands the spring ring 51 making also a tight joint between the 30 looped top of the bag ll and the inside wall of the casing I0 above its shoulder I3. It will thus be seen that the pressure against the top of the closure plate 23 is> transferred to the inside of the device to eñect a tight sealing between that part of the device which contains the unfiltered - oil whereby all oil is forced to pass through the- filtering elements. It is the function of the distributor d_isc 6l to cause the oil to be admitted over the filter unit 40 I5!l in separated streams whereby its force and velocity are diminished to a great degree‘result ing in more eii'icient iiltering. The outlet 2| is made of a. size much smaller than the inlet I3 to cause a slight back pressure to build up at the outlet end of the filter unit resulting in a partial n balancing of the ßlter- bag and unit and. a still . sisting of a circular perforated metal disc 33 hav -further slowing up ofthe velocity of the ing an upturned and drawn in flange 'Il clamp-' 50 ing over the disc- a sheet 'II of preferably pure This also helps to maintain a uniform pressure at the outlet end preventing a- too rapid dis 50A virgin wool reinforced by a sheet of wire nettingV charge therefrom with a corresponding drop in 12. This disc is adapted to slide over the lower `oil pressure. > ' end oi' the by-'pass tube I3. ' The check 34> in the by-pass tube 33 is held The operation of the device is as follows: Oil 55 is admitted under pressure into Ithe upper por-_ tion of the filter through inlet I3. It is then spread uniformly over the illter elements by the vagainst the inlet opening 33` to the tube by a spring. stronger than the normal -oil inlet pressure. openings 82 in the distributor disc Il wherebylts velocity is reduced and is forced lengthwise 60 through the filter-unit I9. It is then again ill tered by passing through- the double layers I3 of the Acotton fabric of the filter bag 3|. 'I‘hen at the lower portion of the casing it is again ?ltered through the` sheet 1I of pure virgin wool fabric. 65 and passes out of the nlter through _the final increased and become lhigh enough to overcome ,_ small outlet 2|. V n A Should, however, the illter unit become clogged up by impurities. this normalpressure will be the 'pressure of the spring, thus permitting oil to by-pass the filter elements through the tube 33 66 to the outlet without interrupting the flow of oil. Attention is also drawn to theI facility with which the'nlter bag 5l with the filter unit 33 can be` removed from the casing. Taking hold of the looped cord Ila at the top of the bag and pulling it will contract the metal ring l1 and thus break' the contact between the top of the bag~ with the ~ There are\thus three distinct stages of ñlter ing provided for inthe apparatus, first the filter ' inside ofA the _casing and thereby reduce vthe . ~'paper, then the double layers of cotton fabric, 70 and lastly the sheet of> pure virgin wool. Closing of the> device is very simply effected by merely placing the yoke Il over Vthe closure plate-23 so that the grooves I3 at the .ends of the two rearwardly extending legs 43A engage the lugs 3,9. The centerpoint l2, of the yoke wn friction which otherwise would be anobstacle to' an easy removalofthe bag. Y . Y ,A While I have shown a coiled spring to press the distributor disc against the bag, it is obvious, -of course, 4that any other form of spring, a flat spring forinstance, may be used. "So also, the _use 0I the by-pass-arrangementis optional and 'Il i v 3 modale may be omitted, if so desired. Wherever I have perforated disc tightly pressed within the casing made reference to “oil”, it is to be understoodI and upon the'salid shoulder near its outlet and rsi ' that this term is to be interpreted so as to cover iilter sheet clamped upon it. , 4. In a ñlter casing having an inlet and an . any liquid. It is obvious that various other changes of outlet and a shoulder therebetween near its inlet, a cover for the casing, a filter bag having'its open form, proportion and minor details may be re sorted to and the construction modiiìed to suit top folded over to rest against the said shoulder, a, many other purposes without departing from the iilter unit within the bag, va. distributor disc over principle or sacriiicing any of the advantages of the top of the bag, means to force thev said disc against' lthe top of the bag and the said top 10 the invention as defined in the appended claims. against the said shoulder, the casing having an What I claim as new, is: , , other shoulder near its outlet, and an additional 1. In a `i‘llter casing having an inlet and an out let‘ and a shoulder therebetween, a cover for the >filter element near the said outlet consisting of casing, a ñlter bag having its open top folded over a perforated disc tightly pressed within the cas ing and upon the .said shoulder near its outlet 15 to form a loop, an adjustable ring within the loop, and a sheet of virgin wool clamped upon it. . a. distributor disc over the top of the bag having4 a depressed tapered portion entering the said bag, and means to force the said disc against the top of the bag and the said top against the shoulder, 20 the said tapered portion of _the disc simultaneous ly spreading the said ring while entering the top oi the bag to force the sides oi the loop at the top of. the bag against‘a wall of the casing above the said shoulder. l _ ` 2. In a filter casing having an inlet and an outlet and a shoulder therebetween, a cover for the casing, a filter bag having its open top folded over to form a loop, an adjustable ring within the loop, cordstrung across the top of the bag to form a handle, a distributor disc over the top of the bag having a depressed tapered portion entering the said bag, and means to force the said disc against the top oí the bag and the said top against the shoulder, the said tapered portion of the disc simultaneously spreading the said ring ’ i while entering the top oi the bag to force the sides of the loop at the top of the bag against a wall oi' the casing above the said shoulder. 3. ln a filter casing having an inlet and an out let and a shoulder therebetween near its inlet, a cover- ior the _ es; a älter bag having its open 5. In a ñlter casing having an inlet and an out let and a shoulder therebetween near its inlet, 'a Acover for Íthe casing, a filter bag having its open top folded over to rest against the said shoulder, 20 a filter unit within the bag, a distributor disc over the top' of the bag, means to force the said disc against the top of the bag l and the said top against the said shoulder, the casing having an other shoulder near its outlet, and an additional 25 iilter element near the said outlet consisting of a perforated disc Vtightly-pressed within the casing and upon the said shoulder near its .outletand a' sheet »of virgin wool reinforced -by wire netting clamped upon it. 30' . 6. In a illter casing having an inlet and an outlet and a_ shoulder therebetween near its inlet, a cover for the casing, a` iilter bag having its open top folded over to rest- against the said shoulder, a ñlter unit within the bag, a distributor '35 disc over the top ot the bag, means to force the said disc against the top oi the bag andthe said r top against the said shoulder, thecasing havingv another 'shoulder near its outlet, an additional filter dise tightly pressed within the casing and 40 upon the said shoulderinear its outlet, and a by top folded over to rest against the said shoulder, a f' pass tube extending from the said distributor disc filter unit within the bag, a distributor disc over through the said ñiter bag, filter unit and ñlter the top of the bag, means to force the said disc. disc to near the said outlet and having a spring against the .top of the bag and the said top \ pressed check valve adapted to open and by-pass 45 43 against the said shoulder, the casing having an» liquid directly to the outletby an excessive inlet other shoulder ' v illte‘r element n its outlet, and an additional the d outlet consisting of a pressure. - JAMES H. . CK.