US1846706A - Air cleaner - Google Patents

Description

J. CARTMELL Feb. 23, 1932.

AIR CLEANER Filed Jan. 26,

` INVENTQR. Carme/ ATTORNEY.

Patented Feb. 23, 193.2`

UNITED ,PATENT 'oFFIcEjA Y,

JOHN CABTMELL, OF SPOKANE, WASHINGTON, ASSIO'NOR T0 THE C. R. C. AIR CLEANER 'fpose of removing the dust from the air before it is taken into the engine. Certain ob- ;jects of the invention are to provide anair cleaner comprising a one-piece casing with `integral inlet 'and'outlet members, and an vinner casing' having a main -and arcuate baille cleaner members detachably mounted therein.l lAnother object ofthe invent-ion'is to l curvezand,spacethearcuate baille members in such manner that the ends of each will:l overlap thebulging center of the next memberwheredispose said members in such manner fasV to cause a maximum interception of the air bythe air is compelled to im'pinge said members in its passage therebetween. Further objects are to provide a detachable bottom panA for the 'casing having an oil contained sub-chamber with a flanged lid for retarding the escape .offain whereby its dust isdeposited on the oilfQy -Still further objects are' Vto provide novel baffle members with means' for causing a maximum collection of dust and to passing through the device. v

With the above and otherobjects in View which `will -appear' as the descriptiony proceeds,` the invention consists of the novel construction, adaptation, combination and arrangement of parts hereinafter described and claimed. .These objects are accomplished by devices illustrated .in1 the accompanying drawings; wherein Figure l isa view inside elevation showing the forward portion of` a tractor with my device installed thereon;

Fig. 2 is a view vin vertical section of an auxiliary cleaning apparatus that maybe connected to the main cleaner; y f

Fig. 3 is a detail view. in perspective of the main cleaner; A

Fig. 4 is a view in longitudinal vertical section of the same taken substantially on a broken line 4, 4 of Fig. 3; Y f

Fig. 5 is a detail view in perspective showing a fragmentary portion of one ofthe baiiie cleaner elements; and

Fig. 6 is a detail view in perspective of the COMPANY, 0F SPOKANE, WASHINGTON Application mea'fraxineri ze; 1931, vserieu ne. 511,265.

ibottom pan.

forth.

1 A1B. CLEANER vflanged lid for the oil sub-chamberpin the Referring Ato the `drawings Vthroughout is provided with lugs 6 whereby same may be mounted for use in connection with motors and other engines that use airin theircombustion or operation. The top portion of saidcleaner casing` is provided with an integral outlet vmember 7y andan integral intake member 8. A plurality ofy sl'ots`9 lis provided in the top of Vsaid intake as shown in Fig. 3 and for reasons hereinafter set Asshown lin Fig. 1 of the,l drawings, the

device is ordinarily interposed inthe air ink take pipe line and forward ofthe carburetor with its yintake member 8 connected tothe intaleportion o f the pipe thatis openv to atmospheric pressure and its outletmember 7 A separate inner casing 10 is adapted to iit snugly into the main `casing 5. f Said inner casing is installed through the open bottom ofsaid main casing and is also provided with-an open bottom having a narrow flange 1l around its bottom edgey which `fits snugly up against the bottom edge ofthe main caslnge v The inner casing l() has a short baffle 12 slanting downwardly and outwardly or forwardlyfrom its upper rear end which baffle registers with the lower rear end of the intake member 8 in the installedwposition as l which like reference numerals indicate'like parts, the numeral 5 designate'sjthekmain 'cleaner casing that is made in one piece and lconnected to the portion of the pipel that leads to the intake manifold ofthe engine.

clearly 4shown in Fig. 4 ofthe drawings. A-

wall of -the inner'casing thus `forming a restricted passage l4'therewith. Ayplurality of arcuate baffle members 15,. verticallyy disposed in spaced relation and transversely .of

the inner casing, extend from the bottom of said inner and main casings to theirtops and .y

in communication with the outlet member 7 very important feature of my invention resides in curving and spacing the arcuate baille members 15 in such manner that the vertical alignment of their tops and bottoms overlap the central or bulging portion of the neXt baille. Thus the air passing upwardly between said baffles, which air would ordinarily travel in a straight line, is compelled to impinge their sides as will be understood.

The arcuate baille members 15 may comprise a thick pad of felt or other absorbent material 16 that is preferably saturated with oil. Said pad is held between two plates 17 that are provided with downwardly and outwardly projecting riilles or baffles 18 that may be stamped or punched outwardly from said plates. 4 The lateral edges of said baiHe members are held in a groove or channel 19 that is formed by pressing ridges outwardly' from the sides of the inner casing 10 as most clearly shown in Fig. 5. The main baille member 13 is likewise mounted and constructed and its bailles 18 project upwardly instead of downwardly. It 'will thus be apparent that all of said baille members may be readily removed and taken apart for the pur-` pose of cleaning.

A bottom pan, designated as a whole by the numeral 20, is provided with an offset flange 21 around its to J which is adapted to snugly fit the bottom e ge of the Casing 5 or rather the bottom flange 11 of the inner casing 10.

Said pan is held in Vosition on the bottom of said casing by springs 22 that are so tensioned that the pan may be snapped into position as will be understood. A sub-chamber 23 may be disposed in the lower rear end of said pan and partly iilled with oil or oil soaked cotton waste or the like. Said subchamber is provided with an open-top flanged lid 24 as shown in detail in Fig. 6. The flanges of said lid are adapted to retard the escape of air projected into the sub-chamber so that it may deposit its dust on the oil or fabric. Loose or floating oil may be placed in the main bottom pan, as shown in Fig. 4, for collecting some of the dust from the air.

At each suction stroke of the engine to which the device is connected outside air will be drawn in through the intake member 8 and will take a course through the device somewhat as indicated by the direction arrows shown in Fig. 4. The air will enter both through the main port of said intake member and through its slots 9 which will cause the air to be somewhat broken up or diffused upon its entry. The small baille 12 l will direct the air against the main slanting baffle member 13 whose riifles or bailles 18 will catch andretard the air sufficiently for the oil soaked pad 16 of said main baille member to collect, by adherence, much'of the dust therefrom.

Upon continuing downwardly the velocityl ofthe air will be increased by passing through the restricted passage 14 which will serve to project the air downwardly into the subchamber 23. The flanges of the open-top lid 24 will retard the upward escape of the air from said sub-chamber whereby more of its dust will adhere to its contained oil or oil soaked fabric. Upon rebounding u wardlyA from the sub-chamber the air will orm an eddy due to the down coming air and the space'25 between the main baille member 13 and the first or adjacent arcuate baille member 15. In this eddy movement some of the air will strike the floating oil in the bottom pan 20 whereby some more of its dust will be deposited. From said pan the air will pass upwardly between the arcuate baille members and outwardly throu h the outlet member 7 to the engine. The ereinbefore described overlapping disposition of said arcuate bailles, whereby the air is compelled to impinge their sides together with the retardation of the air by the riilles or bailles 18 of said arcuate members causing the remaining dust to be deposited on their oil saturated felt pads, will complete the cleaning process.

Referring to Fig. 2 of the drawings7 I sometimes provide an auxiliary or additional cleaning apparatus in the form of a T-connection 26 for the air intake pipe and in this case the slots 9 of the intake member 8 are eliminated. The pipe joining said T-connection with the main cleaner device' is connected to said intake member by means of lu s 27. An inner casing 28 is installed throng the bottom of said T-connection and is lled with steel wool, horse hair or the like that is provided with a wire screen 29 at both its top and bottom. A bottom member 30 is secured to the underside of said T-connection by bolts 31 and it will thus be seen that the inner casing and its filler may be readily removed for cleaning. In the use of this auxiliary cleaning apparatus the air is drawn thereinto, prior to its entry into the main cleaner, and strikes against the absorbent material whereby some of the dust adheres thereto as the air rebounds in its passage into the intake memberl 8.

Having thus described my invention, it being understood' that minor changes may be resorted to in its construction and arrangement without departing from the scope and spirit of the invention, 'what I claim and desire to secure by Letters Patent of the United States is 1. An air cleaner having in combination a one-piece main casing, integral intake and outlet members for the casing top, said intake member having a plurality of slots arranged to diffuse the air entering its port7 an inner casing fitting snugly into the main casing and adapted to be installed through the open bottom thereof, a main baffle member disposed transversely of the inner casing slanting rearwardly from the inlet to form a. restricted passage between its botrality of arcuate balile members spaced apart tom edge and the rear wall of said inner casing, a small baffle arranged to direct entering air against said mainy baille, a pan detachably secured to the bottom of the casings, a sub-chamber for the pan having oil or oil-soaked filler therein and disposed directly below the restricted passage, an opentop flanged lid for the sub-chamber, ity of arcuate baffle members vertically disposed transversely of the inner casing in communication with the outlet. member, said arcuate baffles curved and spaced in such manner that their end alignments over` lap the central bulges of adjacent bafv fles, absorbent oil saturated fabric pads for the arcuate and main baiHe members, metal plates for said pads, riiiles punched outward from said plates in directions slantingly adapted to intercept the passage of air through the casing and grooves in the side walls of the inner casing for detachably receiving the lateral edges of said baille members. x

An air cleaner having in combination a one-piece main casing, integral .intake and outlet members for the casing top, an inner casing adapted to be installed through the .open bottom of the main casing, a main baflie member slanting rearwardly from the intake to form a restricted passage with the inner casing, a small baffle arranged to direct entering air against the main battle, a pan de tachably secured to the bottom of the casings, a sub-chamber disposed directly below the restricted passage, an open-top flanged lid for'the sub-chamber, a plurality of arcuate batile members vertically disposed transversea plural-- to form a passage between the pan and the outlet member'. l

In testimony whereof I aliix my signature.

'JOHN CARTMELL.

ly of the inner casing in communication with the outlet member, projecting rililes and oil saturated pads for the arcuate and main balile members, and said arcuate bai'Hes curved and spaced in such manner that their end alignments vertically overlap the central bulges of adjacent baiiies. j

3. An air cleaner having in combination a main casing, intake and outlet members for said casing, an inner casin for the main casing, a detachable main baiie member slanting rearwardly from the intake to form a restricted passage, a small battle arranged to direct incoming air against the main baille, a pan detachably secured to the bottom ofthe casings, a sub-chamber disposed below the restricted passage, an open-top flanged lid for the sub-chamber, and a plurality of arcuate baiiie members transversely disposed of the inner casing and in communication with the outlet member.

4. An air cleaner having in combination a main casing, intake and outlet members for said casing, an inner casing, a. main bale member adapted to form a restricted passage, a detachable pan for the bottom of the casings, a sub-chamber for said pan, and a plu-v

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