US1496908A - Assigkno r - Google Patents

Description

June l0. 1924.

J. M. SCHUTZ SUCTION AIE CLEANER Filed Jun@ 2O 1921 3 Sheets-Sheet 1 June 10, 1924. 1,496,908

J. M. scHuTz SUCT I ON A IR CLEANER Filed June 20. 1921 3 Sheets-Sheet 2 June 1o. 1924. 1396,908

J. M. SCHUTZ SUCTION AIR CLEANER 3 Sheets-Shes t 5 Filed June 20. 1

,ingrl to the exhaust sind the intake. l

Patented June 10, 1924.

UNITS'LE lSTATES PATENT OFFICE.

JOSEPH M. SCHUTZ, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE SSIGNMENTS, TO STBOMBERG MOTOR DEVICES COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

sUc'ioN Am CLEANER Application filed June 20, 1921. Serial No. 478,872. A

To flwhom it muy concern.'

Be it known that I, .Tosnrn M. SCHUTZ,- a citizen ol" the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in n Suction Air (lleaner, of `which the following is n specification, i

My invention relates to improvements in methods `and means for separating materials .from a gaseous carrier and has special reff erence `to improvements lin air cleaners and Vthe methods for eliminating dust from the nir before it enters the `carburetors `of internal combustion engines.

The object of my invention is to produce a device for this purpose which shall be so constructed-or made as to arated from the air, being again picked up by the nir; which shall be so simple in its construction that the manufacturing cost shall be a practical minimum; und which shall readily be attachable to conduits lead- Another feature of i rnportancerelates to the construction of the tangential inlet pasi sages which I employ, the arrangement being such that I :un enabled to produce ztring,

ot' tangential passages in an exceedingly sim ple und inexpensive manner and4 to provide :in-effective inlet guard screen for the inletsl ln addition to the above many other advantageous results are obtained b and are embodied in. the particular embo iment of my invention as hereinafter described and particularly pointed out in the appended claims.

My invention v'vill be more readily understood by reference to the accompanying drawings formingr and in which 7Figure l is a fragmentary side elevation of an internal combustion engine equipped with an air cleaner mode in accordance with my invention; n Y

Figure 2 is atop plan vien. of the air cleaner; i

Figure 3 is a vertical, central, sectional View ofthe air cleaner on the line 3-3 of Figure 2;

Figure 4 is a horizontal gvctionat view' on the line 4-4 of Figure 3;

Figure 5 is a bottom plat View of fhg upper cover memberpreclude `the possivlnhty of any dust which `has once been seppart of this specification Figule is :i top plan view of the lower cover member;

Figure 7 is an enlarged fragmentary see tional view similar to Figure 4 of a joint or connection in the lower part of the air separator;

Figure 8 is a fragmentary, vertical, central, 'sectional view p' rticularly showing, the depending dust. disch rgge nozzle and the vertically arranged ejector;

Figure 9 is a vertical sectional view on the line 7 7 of Figure 3 showing,r the con meeting pipe `clamped in position; and

Figure i0 is a horizontal sectional view of the sheet met-al connection, at the lower` end 8 8 o'f Figure 8.

This present invention is un improvement 1i pon my 'invention as disclosed and claimed in my co-pending application, suction air cleaner, filed in the United States Patent Otlicc. November 19, i920. Serial No. 425.073.

In said drawings, 1 represents an internal combustion engine of ordinary design having n suction intake 2 and an exhaust conduit 3. My improved suction air cleaner is designated,generally by4. It is provided with o central. outlet 5 at its upper end adapted to be connectedI to the intake (i of a suitablecarburetor 7 which is interposed between the suction nir cleaner and the in take 2 of the engine. The air cleaner 4 is yadapted to remove the dust from the ltir upper end of the casing 9 is conncrml ro a head or cover device 11 which I piovnle with a, plurality of tangential inlet fmssziges 12 around its circumference. This head or cover member 11 is made up of a lower ring member 13 and an upper or cover member 14. The lower member 13 has ay large caentrafl opening 15 which receives the oppor end of the casing 9 and is provided e if er. annular internal groove 1G into which the unpcr part of the casing 9 is forni. to rc- {q'in these two members rigidly lingethen th is ltr-vcr member is in ring form and rw :mi

` drawing of the air at this point.

- tangential inlet passages 12.

and clamped. isop Yfrom the ring are V-shap'ed projections 17 which are best shown in Figure 6 and. which cooperate with similar shaped projections 18 depending from the cover member 14 to form the plurality of tan ential inlet pas- 12.. The upper mem er 14 has a central openin 19 for receiving a de n diug outlet mem er 2,0 which is provide with a suitable flange 21 for securing the outlet member upon the covcr member 14 by bolts 22. This outlet member is usually provided with an elbow part 23 for connection to the intake of' the carburetor. The two members 13 and 14 are adapted to be rigidly connected to each other in their pro er relative itions by bolts 24 extending own to the projections 18 and thru the lower ring 13.

As the inletA passages are 'of relatively large size being in the device shown in the drawings approximately of an inch wide and one inch high,V I rovide a iardsurrounding the tangentia `row of in ets to prevent the drawing inrof large objects such as leaves, straws, etc., which might clog the interionopenings of the' device.

This guard 2 is in the form of a ring of sheet metal which is rovided with a great many relatively small) holes 26 thru which the air can readily enter and pass thru the The holes 26 are siiicent in number to' prevent iuy wire pref erably make the guard 25 of spherical form as shown 1 provide ample space between the guarcgand the projections 17 and 18 forming the inlet passages l2 to permit the entcrngrar to dow freel to the inlet passa o hold the guar 25 in its position, I provide the members 13 and 14 with ann'u lar oves and 28V at their outer edges and adjacent to the faces of the projections 17 and 18 forming `annular shoulders 29 between which the guard ring 25 is received In assembling the several members of the head member 11, the lower ring 18 having been secured to the cylindrical casing, the guard ring 25 is .then

pelaced in position and the upper cover mem.

r 14 is then placed in position within the guard ring and with its projections 18 alternating between Athe projections 17 on the lower ring and then the cover members are clamped tightlv together with the bolts 24 securing the mcmber14 upon the member 1,3 and serving to permanently hold the guard ring 25 in l-osition without other fastening means, Preferably the nozzle 20 projects through the cover member ll and extends down a short. distance into the u per end 'of the chamber 9, so that the incoming streams of air through the tangential inlets must ass downwardly into the chamber' 9 in or er to escape through the central outlet at the top.

The hopper or conical bottom 10 of the chamber 9 ends at its lower end in a straight or cylindrical neck 30 and the free end of ,this neck is formed into an outturned narrow flange 31 for the purpose of connecting a suitable discharge nozzle to the lowerend of the hopper.

As the air is drawn into the device by the suction of the engine through the tangential inlets 12, the several streams entering in through these inlets are caused to w irl with high velocity upon the cylin-v drical surface of the casing and are forced downwardly in the casing to the conical bottoin carrying all dust and other materials which the air ma be carrying with it down to thebottom o the chamberwhere I arra e means for preventing the picking up of t e dust again as the air travels to the center of the chamber and rises thru the chamber to the outlet. This means comprises a conical baille wall 32 which is arranged centrally within the conical hop er 10 and which is supported upon a cy indrical wall 33 referably formed integral therewith exten ing down through the neck 30 of the hopper l'and of a smaller diameter providing a narrow cylindrical channel-like annular s ace 34 between the neck 30 and the cylin rical wall 33 into which the dust, carried down the surface 10 by the whirling airl is forced.

-s best shown in Figure 3, the wall 33 is longer than the neck 30 and the upper end 35 thereof rises higher in the conical hopper than the juncture of the conical hopper 10 and the neck 30 and the u per part 0i the wall 3 3 thereby forms a ba e to prevent the carrying inwardly of the dust which is forced own the conical wall by the whirling air and causing such-'dust to be .forced down to the bottom of the channel 34. The wall 33 is supported u on a horizontal flange 37`which is in the orin of an annular flange extendin end of the wal 33 and preferably' formed inte rally therewith, the outer diameter of the ange 37 being substantially the same as the. llangc 31 on the lower end of the neck 30. j Y

In the completed structure these flanges are clamped tightly together by means of the up r edge 38 'of a smaller conical def livery opper 39 which the hopper 10. The upper ed e 38 thereof is adapted to be formed tight y around the outer ripheries of the two flanges'l and 37 as st shown in Figure 7.

The conical hopper 39`forms end of a depending delivery nozzle 40 w has a substantially parallel portion 41 immediately belowv the hopper 89 and which cal delivery nozzle, 42 small delivery This nozzle 42 iis extends down below than r .ends below the parallel ort'ion 41 in a coni.

1 .mosca j an ejectxgii, the-edler member being; l'orincd i ranged substantially in the by a sheet nietnlrcasing 44 surrounding the IOZZlc und iadptedfito be mounted rigidly relatively thereto-and having a nozzle 45 adapted to be connected with the pipe u lor receiving pressure' from the exhaust pipe of the engine. The using 44 is provided with u dow; vardly cxlenilinff delivery nozzle 4l] which us,` best shown in Figure is runde in the forni of :i Venturi tube, having an elongated conical part 47 :it its lower end and a shorter conical part 48 at its upper end, the neck 4!) of the venturi being arv lane of the outlet opening 43 of the nozz e 42 and below the side connection 45 whereby the gases under pressure which enter the sidV connection from the exhaust ipe escape through the Venturi 'tube past t e lower end of the discharge opening 43 and produce an exceedingly strong suction at this point.

To permit the collected dust to enter into the device below the baffling member 32 l provide circumferentially extending discharge slots 50 in the 'flan e 37 and at the i bottoni of the ring-like co ection space 34. The action of the air in the collector is to drive the dust down throng i these openings and as fast as it is driven down to the. lower part of the device, it is drawn out through the discharge opening 43 by the suction Set` up in the discharge nozzle 40 by means of the exhaust gases which escape through the Venturi tube.

An important feature of my invention rc y lates to the fact that it is non-clogging in cally depending nozzle 42 its operation. Once the dust has been cepu` it finds no horizontal support, shelf or projection upon which to accumulate. The projection of the dust through the slots in the dividing baille, is in a downward direction through the verti- V to the outlet opening 43, there the dust is caught by the strong ysuction produced by the ejector and is driven downwardly through the expanding nozzle. 4.7.

The connection 44 is preferably made of sheet metal and as best shown in Figures R and 9, l preferably make it of two parts or halves 51 andL'Z, the dividing plane between the two parts being a longitudinal central pince in order lo arrange this connection so that it can be readily clamped upon thrrylindricalrportion 4l of the discharge nozzle and upon the end of the pipe S, l provide flat parallel flanges 54 and 55 on the parts 51 and 52 respectively in the angle between the parallel portion 41 of the connection 49 and which flanges are adapted to be clam d tightly together by bolts 56 and 57. T e' bolt 56 clamps the connection around the parallel portion 4l of the discharge nozzle andthe bolt 57 clamps the rated from the air extending from cud lo end.r

.former method. Furthermore nozzle and thel lock-earned together' as Shown :it 58, .This

consi ruction lends itself to the production of thil connection nt a low cost ont of sheet nictul by the usual stamping processes.

'l'hc construction of the upper end of the device l'orniinpy the lungi-nihil inlets by providing a lernuting cooperating. projections on the menioers 13 und i4 greatly facili trates the production of fl'iesc tangential openinge` for tht` reason that the projectioneA on euch of these members: ure vso f-ir apart that they cnn be readily usual molding, casting or die-casting 1- roc` isses and they can be readily smoothed up or finished oli account of the wide spaces between the projections on the individual members. In fact, in the preferred nivnner of production of the device, there is very little machine work as the members 14 and 15 are preferably dic-cast and the other parte of the device arr` made out of sheet metal. The low cost :it which the device can be produced ii: quantities results in a greatly extended field of use'.

In apruclicul sense the pulsations of the suction ol1 the nir through the carburetor to the cylinders of the engine are opposed by thepulsu'iom` produced in the duet. discharge opening by 1hr successive dischargcs of ille exhaust gases from the cylii'idere und conscqui-nlly the suc! ion I 'iulsalions of the n ir cannot client or produce a lifting of the dust which han been seperated from the uil' by the centrifugal action in the sepan-:lling chamber, with the result that substantially 100% of the dust is removed from fhe'air.

rlhe forni of dust ejector which l have shown und drsrrihed possesses advantages which are unattainable by the use ofthe forni of ejector heretofore in common use, viz: the forro in which the lurssuru is supplied through the central smaller tubo instead of surrmunling this tube as l have an ranged it.

produced by the` produced at ihencck ennllled to produce :l suction pressure in the dust delivery lube which is from six lo ten times `riore than could be produced by the by this arr genient l nin enabled to produce, by means of the exhaust, a Stronger suction for the duct delivery cud of thi cleanerithan iS prod iced at the air delivery end by the suction of the cylinders. This stronger suction or lower vacuum" pressure Vassists 1n preventing the clean air picking up the Separated My device is exceedingly simple in construction and installation and once installed '-1 w-if-*ically no attention whateoerer,

of the venturi, a'm" tending alternately from the dust being continuously discharged fromv the collection chamber'and the air assmg free of dust through the carburetor into the intake of the en ine.

As many mo ilications bf my invention will rend il y suggest themselves to one ski lcd in the :ii-f, I do not limit or confine invention to the specific details of construction herein shown and described,

I claim:

1. In a device of the kind described, a head comprising two opposed members, the head having an annular-series of tangential inlet openings between said members, the .circum fereniial defining walls of said openings exsaid'two members as and for the purpose specified.

*2. In n device of the kind described, a sheet metal casing having a substantially cylin dricn! portion open at one end, a ring mem ber secured to said end, a cover member o substantially equal external diameter with 1h ring membriI secured tosame and sp therefrom, projections on the ring member extending into contact with the cover inember, and alternately arran pmiections on the cover member exten ing Lzito contact with the ringr einher, said pro'ections cir conferentie] yspaced apart an adapted to forni tangential inlet onins between same.

3. in a device ofthe 'nd ascribed, a dust Separation chamber havin a' conical bottom ending into' a cylindrica outlet, a guard mem 4r in the form of il closed topped cylinder of smallerdiameter in said outlet, the upoper end of the cylindrical wall .rising a ve the cylindrical wall of the outlet o said conical bottom thus forming a radial balle.

4. In a device of the kind described, a dust separation chamber having tangential inlets at its up .r rnd and a central outlet at its upper en a conical bottom at its lower end, the onical bottom ending in a cylindrical outlet, a concentric cylindrical closed topped baille in the outlet providing a narrow circumferential space between the cylindrical outlet andthe baille, and circumferential discharge outlets at the lower end of said ace through which, the -separated materia is ado ted to be driven to a position beneath the ame.

5.. In a dust se eration device, a chamber having iangentia inlets at its upper endend havin a central air outlet at its upper end,v a conica discharge nozzle for the dust at its lower end, a perforated balllefbetween its ends through which the sepilated dust is driven by the whirlngair, and a Venturi tube surrounding the discharge nozzle, means forsupplying gas under pressure t6 the 'Venturi tu above said nozzle to reduce a strong suction through the nozz e for removing dust through same. l g

6. In a device of ,the kind`deecrib'ed, a

f which the dust is pro'ected by sheet metal connection in the general form of a T connection, the connection comprisin two sheet metal parts joined on a longitu inal medial plane passing thru all three ends of the connection by lock neamdjoints, said connection provided with oppose parts adapted to be clamped together by bolts for closing two of the ends of the connection upon cylindrical members as and for the purpose specified.

7.3ln a device of the. kind 'deseribed, a duet separating chamber, a depending dust discharge nozzle therefor and a vertically arranged ejector tube surrounding the discharge nozzle and having a depending dief charge nozzle. Y

8. In a device of the kind described, a centrifugal dust separating chamber having a suction outlet at its upper end, said chamber having a conical lower and down the centrifin the lower @al action a slott which the part of the chamber through dust isz-projected, an elongated vertically disposed conical dust outlet nozzle' below the baille, and a pressure ejector surrounding thel outlet for producing a suction therein. y

9. .In a centrifugal separator, a substantially central air outlet at the up r end, e. ring of tangential inlets surroun ing the outlet, a'conical Ylower ond de ndin'g from the rin of inlets, a substantie lyk horizontal baille cEJsing the lower end of t .e cone, the

Ybaille having dust esca o enin at its outer edge, a cylindricalewall) risrgis in the chamber within said openings, an means connected with the cone below, said baille for removin the dust therefrom.

l0.V In a evice of the kind described, a conical dust' collecting chamber, the lower part thereof having a cylindrical portion terminating in a conical npzzle, a sheet metal Venturi tube connection member adapted to be secured to said delivery nozzle andadalpted to be clamped to the said cy lindrica portion thereof, seid connection. having e split cylindrical 'u per end provided with outwardly exten ing flanges at the split to be bolted together to clamp the connection in place, said connection formed with a side opening immediately below the upper flanged end and adapted to be clamped Aiipona connecting pipe for supplying gas url der ressiii'c to sai venturi` said flanges being ormed lo receive clamping bolts for this purpose. i. t

1l. In av device of the kind described,` a dust separation chamber having a suction outlet at its upper end for aix-.and a suction outlet at the lower end for dust, the dust suction outlet depending vertically, a venturi below the dust outlet in substantially axial alii-lement therewith the delivery end of the dust outlet being smaller than unil terminating at, the neck ol' the venturi, und nur-uns for supplying lult fun luulvx' pressure lo Ille upper end 0f the wnturi ne und for the purpose specified.

l2. ln u lust separation device, a circular chamber having u tangential inlet. at its upper ein] for dust laden air and having,r an nir outlet :1t its ,upper end, a conical discharge for the dust :it its lower enel` n perfor-nte baille between its ends through which the separated dust is driven by the whirling air, a Venturi tube surrounding the discharge nozzle, means for supplying gas under pressure to the Venturi tube above the outlet of said nozzle to produce a strong suction through the nozzle for removing the dust through same.

13. In :ildevice of the kind described. a chamber having a tangential inlet at its upper end for (lust lullen air and having un uil' outlet :it its upper end` a vertical rrlcpciub ing liwlmrgc nozzle for the. duel :it ilu lower mul of .suid chunilu-r. u Venturi tube sun rounding .Quill nozzle. nwum` for uplilying hol uns miller pressure to Suid venturi to lli-ul. nhl nozzle :nul to muse u strong suction through thc nozzle, :is uml for the purpose Spi-willed.

ll. ln

:i centrifugal separator, a substantially central air outlet at the upper cnil, a ring.r ot' tangential inlets surrounding the ourlet, a conical lower end depend-- ing from the ring of inlets, ending in n substantially cylindrical lower end, :i baille Wall closing said `cylindrical part, said batl'le having n ring of dust escape openings adjacent to its edge, a cylindrical wall rising within said ring' of openings and extending from the baille to, n point above the upper enfl of said cylindrical part, and means connected with the cylindrical part below said baille for removing the dust from the device.

15, In a device of the kind described, a dust separation chamber having a tangential inlet at its uper end for dust laden air and having an out etal: its upper end, the cl1amber having a conical bottomtcrminating in a discharge nozzle, a pressure chamber surrounding thc nozzle, the pressure chamher having an annular outlet, surrounding the discharge end of the nozzle, and means for forcing hol: gases inlo anfl through the chamber and through said annular outlet.

Si ned alJ ('hirugo. lllinoi;A this fUtlrday of h y, 1921.

JOSEPH MA SCHUTZ.

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