US2467641A - Fluid pump - Google Patents

Description

.April 19, 1949. y W. o. WEST 2,467,641

FLUID .PUMP Fnedsept. 424, 1945 W/LL/AM 0. WEST INVENTQR.

ATTORNEY Patented Apr. 19, 1949 UNITED STATES.

TE OFFICE FLUID PUMP William O; West, Fort Worth, Tex.

Application September 24, 1945, Serial No. 618,265

6i Claims.- 1,

This invention relatesy to pumps for fluids, such as water, oil, air',and'the like, and hasv particular reference to the type-usually referred to as rotary pum-ps",v and; its primary object resides in the provision of aI pump' which is capable of moving fluids by an arrangement of belts having teeth thereon' operat'ng'influidi channels whereby the fluids can be moved more rapidly' and in greater volume'tha-n the conventional types of pumps and witahgreater economy in operation.

Another object of the invention resides' in the provision ofv a- Huid* pum-p which isI simple in design' andembodying few=worki`ng parts yet capable of' use'v wherever the necessary' for pumping various type of fluids, including air, or the like, eithersingly or in multiples, depending'upon the volume required', and in varying sizes.

Stlll'another"object'k of theinventicn is that of providing a pumpVV capable of operation in' either verticali or horizontal position therebyy affording adesirable unit" for various,v pumping require- Broadly, the invention seeks to comprehend the'provision' of-'a'lowi costipumping unit suitable foriuse' in pumping air, or other fluids, where an even ow isidesiredand possessing advantages uncommon tof'othentypes of pumps.

Whilst the foregoin'gI obiects paramount, other," andlesser' objectswill becomeI manifest as thefdescription proceedsltaken inconnectionwth the' appendeddrawings: wherein Figure' 1. illustrates thepreferred for-mi of they invention. ini` elevation with one section'- off the housing removed.'

Figure 2` isa laterali cross-secticnal view of the invention'. also with atse'ction ofA the housing removed, tak'enronlinesiZL-Zof-'Figure 1', and shows the.'i adjustment forfthe: belts.

Figurev shows another lateral cross-sectional view, taken on lines 3-3 of"Fi'giire- 1, and? also showsfa. sectiony otth'e'housing removed.

Figure 4 isa side elevational View of the as sembled inventionillilstrating one form of the hotusingg, and

Figure 5 is a fragmentary vertical cross-sec tional view,.taken.on lines 5,-5 ofFigure 1, showing the beltadjustm'ent'from one end.

Thevinvention, therefore, in' its preferred ferm, comprises-.f ae housingwhich isf: in.. two sections E :indizi-capable, oibeing`r joinfedlby bolts 3f, or the like, arranged through flanges 4 and 5, as shown in Figures 1 and 4. Each section l and 2 has embodied therein a box-like receptable 6 in its upper end' and a. similar receptacle 1 in its lower end, which, when the housing sections are joined,

as in Figure 4, form' an intake chamber 8 at the bottom and a discharge chamber at thev top shown. more particularly in Figure 1.

When the housing sections l and 2 are joined the chambers 8 and 9 are entirely separate but have passages It, Il and l2 therebetween provid' ing communication. These passages are formed by channels i3, it andl formed' in each seotion. i and 2, in the manner shown in cross-sectionin Figure 3. As will presently become manifest,th`e channelsv or passages It and ll are iiuid passages although all three passages lll, ll and l2 operatively receive the belts i6 and il, shown in. detail in Figure 1.

A pair of' equi-distantly spaced pulleys It and i@ are arranged onv shafts 20 and 2l in the intake chamber 3 in the bottom of the housing and pulley l 9 has a driven pulley 22 on its shaft 2l by whichv the pulleys are rotated. A pair of gears f 23, shownfin dotted lines in Figures 2 and. 4, provide a driven connection between the shafts 126 and 2! in addition to the belts i6' and ll, previously referred to, which have teeth fill on their outer faces and which are adaptedy to intermeshin they channel or passage l2, between the fluid channels l0 and l I, in operation, as shown in Figure 1y..

Another equifdistantly spaced pair of pulleys 2li and. 26 arev adjustably arranged. in the. upper or discharge chamber El, shown in Figures land 2, but these pulleysare not fixed on shafts journaled inthe housing, in the manner in-which the shafts ll and 2lare arranged, but are mounted. for free rotation on stub shafts 21 whose ends are jour-L naled in depending plates 'Z3 integral with an adjustable` bar 2li which is supported on the lower ends of adjusting bolts `til-threaded.A into-the tcp of. e-achfhou-sing'section l and LIandrotatably connected tothe bar liilfsothatlthe latter canbe adiusted vertically.y in.v theA chamber il exteriorlyY thereof to.` increase or lessen the tension. on the belts itz-andi il and take up' slack therein whenV desirable; Springs 3l are prnvidedy on each. ofthebolts 36.l td'insure an even tension: onV the. belts;

in operation, the driven shaft 2l is rota-tedby amotor, or other primefmover (not shawn?) and. the pulley ttu-pon which the belt ll': isy arranged isI rotated. Through `the gears 'ltfthe shaftzllvis rotated'. in they opposite` direct-ion as in dica-ted. by the arrows on pulleys 2255 and 26 in Figure l.. The belts it and ll, being in mesh, as shown also in Figure 1, also move in opposite directions, their respective teeth 24 ntermeshing in the channel or passage l2 in close relationship to squeeze or press out all fluids therebetween. As the teeth 24 move upwardly through the channels or passages IIl and II fluid from the intake chamber 8 is carried in an even flow into the discharge chamber S where it is discharged through the passage 32 into storage. The fluid enters the intake chamber 8 through the inlet passage 33 which, when air is pumped, may remain open to the atmosphere.

As the belts IS and Il are rotated very rapidly by the pulleys I8 and I9 fluid in the intake chamber 8 is moved into the discharge chamber 9 by the belts in an even now. It will be observed that the passages I 6, II and I2 are of such dimensions as to cause the belts I6 and Il to fit relatively close therein and thus minimize the leakage therethrough past the belts IG and Il. The close intermeshing of the teeth 2li in the passage I2 during the downward movement of the belts I6 and I l shuts out the fluids already in the discharge chamber 9 thusA insuring maximum e'lciency in operation.

'Ihe pulleys I 3 and I9 are shown in Figure 3 as being channeled or flanged and the edges a of the belts I6 and Il are recessed so as to embrace the flanges b thereof. This arrangement allows the sides of the belts I6 and Il to move closer to the walls of the passages Ill and Ii, as Well as the pasage I2, to provide a better seal. Obviously, the belts I 6 and Il may have their pulley surfaces beveled to conform to V-pulleys I8, I9, 25 and 26 or may have their faces milled and the belts I6 and Il formed accordingly so as to afford a more lpositive Contact therewith.

Any arrangement, such as stufing boxes, packing glands, or the like, can be provided for the shaft 2i or the bolts 3U where these members enter the chambers 8 or 9 to prevent leakage.

The housinCr sections I and 2, being preferably cast in the manner previously described and shown in the drawings, may be provided with suitable webbing oi ribs 34 to properly strengthen the same. Guide members 35 are also provided integrally of the top of the section I of the housing for the tensioning bar 29. 'Ihese guides are arranged on each end of the member 2Q and serve to retain the same in proper alignment with the belts in cooperation with the bolts 3G.

Manifestly certain changes and modifications in structure may be resorted to from time to time by persons skilled in the art without departing from the spirit and intent of the invention, and such changes and modifications may be considered as falling within the scope of the appended claims.

What is claimed is:

1. In a fluid pump of the rotary type having a housing and intake and discharge chambers in the said housing, a plurality of belts, having toothed outer intermeshing surfaces, operating vertically in the said housing, fluid channels providing communication between the said intake and discharge chambers, the said belts being arranged for vertical upward movement in the said channels to convey fluid therethrough, pulleys operating the said belts, and driven gears driving said pulleys.

2. In a fluid pump of the rotary type having a housing, intake and discharge chambers in the said housing, channels in said housing providing communications between the said chambers, belts having toothed intermeshing outer surfaces operating in one of the said channels and conveying fluid through others of the said channels, pulleys arranged in each of the said chambers for operating the said belts, driven gears operating said pulleys, and means providing for adjustment of tension on the said belts.

3. In a fluid pump, a housing having an intake and a discharge chamber therein, means comprising a plurality of vertical channels providing i,

communication between the said chambers, pulleys operatively arranged in said chambers, belts arranged over the said pulleys in the said chambers and operating in the said channels, the said belts having intermeshing teeth in its outer face and cooperating in one of the said channels and conveying fluid through the others of the said channels from the intake chamber to said discharge chamber, driven gears in said housing operating said pulleys, and means for adjusting the tension on the said belts.

4. In a fluid pump, a housing having intake and discharge chambers therein and passages forming communications therebetween, flanged pulleys operatively arranged in each of said chambers, belts having teeth arranged on their outer faces operatively disposed in the said housing and operating on said pulleys in the said channels, the said teeth on each belt intermeshing with the other in one channel and raising fluid from the intake chamber to the discharge chamber in others of the said channels, driven gears in said housing operating one of said pulleys, and means for adjusting the tension on the said belts.

5. In a rotary fluid pump having a housing and inlet and discharge chambers, vertical channels connecting the said chambers and a pair of toothed belts having intermeshing association in one of the said channels and capable of moving uid through the other channels from the said intake chamber to the said discharge chamber, means comprising pulleys for operating the said belts, driven gears operating said pulleys, and means for adjusting the belt tension associated with certain of the said pulleys.

6. In a fluid pump of the rotary type having a housing and intake and discharge chambers in the said housing, flanged pulleys operatively arranged in said chambers, a plurality of endless belts operating over said pulleys arranged in the said housing, the said belts having intermeshing teeth arranged on their outer faces, vertical channels in the said housing for the said belts and forming communications between the said chambers whereby the said belts transfer fluids from the said intake chamber to the said discharge chamber, intermeshed driven gears operating said pulleys. and means for adjusting the tension on said belts.

WILLIAM O. WEST.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 177,575 Shone May 16, 1876 1,799,086 Caretta Mar. 31, 1931

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