US1537700A - Centrifugal pump - Google Patents

Description

May1z,192s. 1,537,700

V. ROSENHAGEN CENTRIFUGAL PUMP Filed April 19, 1924 2 Sheets-Sheet 1 j@ /S ./m

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V. ROSENHAGEN CENTRIFUGAL PUMP Filed April 19'. 1924 -2 sheets-Sheet 2 A attozmg Y/ on Rost/mam Patented Wiley l2, 192.5.`

vieron aosENHaeniv, or sntiavua; Karreucar.Yy

rear or cnn'rarrueari PUMP, .Y

Appncaaon faedaprii v1a, i924. Vserial No. 707,730.

To achetait/12mg con-ccm Be it known that I, VicronlosENHAeEN, a citizen ot the United` States ot America, and a resident ot Bellevue, in the county oit Campbell andiState of Kentucky, have ink vented newand usetullmprovements in a Centrifugal Pump, of `which the following is a specification. i

My invention relates to centrifugal tluid punips, especially those adapted for operation upon fluids such asoil and water that may be used for lubricating machine tools and the like.

An object ofliny invention is to provide a device of the class described thatis adapted to provide a water flow oftluidat a. ininimum pressure. l

Another object of my invention is to provide a device votthe class described tor the purpose stated, especially adapted 'foruse with machine tools.

These and other objects are attained by the means described herein and disclosed in the accompanying drawings, in which:

Fig 1 is a sectional viewthrough a pump embodying my invention.

Fig. 2 lisY a sectional view on line 2 2 of Fig. 1 looking in the direction ot the single headed arrow.

Fig.v 3 is a sectional view on line 3-3 ot Fig. 1. l Fig.` 4l is a sectional view on line "4 of Fig. 1. l

Fig. 5` is a sectional view on line 5-5 of Fig. 1.v y l Fig. 6 is a sectional view on line 2 2 ot Fig. 1, looking in the direction of the double headed arrows.

My device comprises a casing 10 consisting of an upper housing 11 and complementary lower housing 12. The lower or major portion of the casingis adapted to be de posited within a receptacle 13 to which the lubricant employed with a machine tool or the like may ilow aud from which receptacle `the iluid may be passed tothe cutting tools associated with machine tools. The bottoni housing 2 is provided with suitable depending legs or lugs 14 for supportingthe device within the receptacle 13 and also serve to space the aperture l'within the lower face of the housing 12 from the bottom of `the receptacle 13 so that the fluid uponwhich the pump operates may find its way` into the casing from the receptacle. The upper housinghas apertures 150 foi-ined in it. The apertures 15 andlOestablish communication between the receptacle'13 and the rotor chan'iber 16 termed withinA the casing 10.

A rotor'17 disposed within the ,rotor chaui- 60 bei 16 is carried by a shaft 18 that extends upwardly beyond the casing r10 and receptacle 13 and may carry at its upper end any suitable means such as a bevel 'gear 19 which bevel gear may be actuatedby a inachine 65 tool or the like in any suitable manner and by anysuitablemeans. By reference to the planvi'ew rof the bottoin'housing 12, disclosedE inA Fig. G, it will be observed that 7 there is provided a` central downwardly eX- 70 n tending recess that constitutes part of the rotor chamber and that said recess is defined on opposite sides by a pair oi upwardly extending walls or ribs 21 and 22 that set oft' portions oit therecess 20 Yfrom the` ways 23 75 and 2a constituting parts of the rotor'cham- -ber and lying outwardly ot the ribs 21 and 22.` Intermediate the adjacent ends of the iibs 21 and 22 the recess-20 communicates with the ways 23 and124 as indicated at v25 80 and 26. A duct 27 leads `from the way 24, substantially tangential thereto. It will be observed that theinner 'edges of the ways 23 and2ldelined bythe outer peripheral faces ofthe ribs 21 and 22 are substantiallyy 85 concentric with the axis of the shaft 18. rlhe outer wall 28 of the rotor `chamber defines the outer-limits of the .ways 23l and 24 and is of a spiral structure, the wall. 28 being clos.-

est to the axis of slifaft18 at the unctionot 90 the way 23`and tlieduct 27 and recedingr from said axis as 'the wall circles about the rib `22 until said wall finally merges with th'eyouter wall of' the duct 27. The ybase housing 12 iis piovidedlwith a peripheral 95 flange 29 that engages thc under peripheral tace of thcfupper housing 11 whereby toprovide aunitary casing 10. The basehousing 12 is provided with anupwardly extending.

ledge 30 at* the inner edgeot the Jflange 29, 100

that'is re'ceivedin a con'iplernentaryrecess 31'iii the housing 11 whereby td provide ya simple and effective aligning and sealing ineans between the saidliousings;

Th'e'rotor may be providedwth a plu- 105 i'ality of apertures 32 adjacent its axis. IThe lower face 33 of the rotor is provided with a plurality of centrally disposed flanges or blades 34 deposited toy the front of the openings at 32 so that as the rotor is revolved, 110

the fluid that enters the housing by way of the port is moved outwardly beyond the primary paddles 34 to a plurality of peripheral paddles 35 depending from the lower face of the rotor. 'Ihe inner or primary paddles 34 operate within the recess 2O and the secondary paddles 35 operate within the ways 23 and 24. Fluid may find its -way through the apertures 32 and 15G-to the upper face of the rotor where the fluid is operated upon'by central primary paddles or blades 36 that move the fluid outwardly for opera-tion thereupon by secondary peripheral paddles or blades 37*that extend upwardly from the upper face 38 of the rotor. The blades 3h are contained within a recess 39 formed centrally of the housing 10 and about the axis of the rotor. The recess 3f) is spaced from peripheral ways disposed outwardly or beyond the recess 39 and are set off from the central recess 39 by ribs carried by the upper housing, which ribs are ,disposed above the ribs21 and 22 and are substantially identical with the ribs which.

they overhang,' except that ribs carried by y the base housing` 12 are spaced further apart atthe place 26 than are the ribs 61 and 62 spaced from one another above the passage 26. The ribs on the base housing 12 'are spaced at considerable distance at the place 26 so that a large flow of fluid may enter the way whereby to utilize the m'omentum imparted to the fluid discharged into the way 24 for providing a flow of large volume through the duct 27 at a comparatively low and serves as a closure for the upper-'end of the casing 10. Thev shaft 18 is supported by suitable ball-bearing structures 42. l

By referencevto Fig. 5 it will be observedy that the lower face 43 of the cap 41 is provided with a spiral groove or way 44. This rspiral groove bears such a relationship to the normal direction of movement 0f the shaft 18 that same serves to throw outwardly from the shaft 18 any dust that mightyfind its way between the cap and the casing. In the operation of my device the shaft 18, shown in Fig. 4, will move in a clock-wise direction. vFluid contained withl in the r-receptacle 13 will enter the rotor chamber lby way of the apertures in the housings. The primary blades upon the upper and lower faces of the rotorserve t0 move the fluid out-ward and are augmented in that effort by the peripheral blades 35 and 37 By reference to Figs. 2 and 6 it will be evident that the flow of fluid in the way 24 and in the way above said way 24 will be at considerable pressure. As this flow of fluid passes by the opening or way 26the said flow serves to draw with it a large volume of fluid that has been fed to the way 26 by the lower blades 34k whereby the speed imparted to the fluid as it passes through the way 24 serves` t0 impart momentum to the large mass of -fluid that moves through the way 23. It therefore allows that a large flow of fluid at a compaia tively low pressure, moves through the duct 27 to the pipe 40. The blades disposed upon the upper face of the rotor operate in substantially the same manner as do the blades on the lower face operate, and cooperate with the lower blades in moving the mass of fluid.

` A valve 50 is ordinarily associated with the pipe 40 and controls the flow of fluid through pipe 40. When valve 50 is closed, water that enters the rotor chamber by way of the port or aperture 15 in they base housing, may escape through the apertures or ports 150, thereby precluding the fluid under pressure rising within the upper housing 11. rIhis therefore precludes the fluid from reaching the ball bearings 42 supporting the rotor. e

What I claim' is:

1. In a device of the class described the combination of a casing having a rotor chamber therein, the casing comprising ribsextending into said chamber from 0pposite sides thereof, a rotor within the `chamber and lying between the ribs extending from the opposite sides of the chamber, the ribs on opposite sides ofthe rotor dividing the chamber sections on opposite sides of the rotor into a central recess and a way lyingoutwardly of said ribs, the ribs 4lying on the same sides of the rotor being spaced at their ends whereby to es tablish communication between the central recesses and the ways disposed on a common side of the rotor, thc Irotor having apertures in it for establishing communication bel tween the central recesses disposed on op posite sides of the roto1.',and blades extending from opposite sides of the rotor and operating in the central recesses and in th(` ways. ,i

2. In a device of the class described the combination of a casing having a rotor chamber therein, the casing comprising ribs extending into said chamber from opposite sides thereof, a rotor within the chamber and lying between the ribs extending from the opposite sides of the chamber, the ribs on opposite sides of the rotorpdividing the chamber sections on opposite'sides of the rotor into acentral recess and `a way lying `outwardly osaid ribs, the ribs lying en the saine sides of the rotor being spaced vvat their ends whereby to establish communication between vthe central recesses and the ways disposed on a common side of the rotor, the rotor having apertures within it for establishing communication between the central recesses disposed on opposite sides of the roter, blades extending -from opposite sides of the rotor and yoperating in Vthe central on opposite sides of the rotor dividing the chamber sections on opposite sides of the rotor into a central recess and a way lying outwardly oit said ribs, the ribs lying on the saine sides of the rotor being spaced at their ends whereby to establish communicatioii between the central recesses and the ways kdisposed on a common side of the rotor, the rotor having apertures within it tor establishing communication between the central recesses disposed on oppositesides ot the rotor, the blades extending from opposite sides of the rotor and operating in the central recesses and in the ways, the casing having a port whereby fluid may enter one of said central recesses and having a discharge duct whereby Huid may leave the ways.

4t. In a device of the class described the combination of a casing having a rotor cli-amber therein, the casing comprising ribs extending into said chamber from opposite sides thereof, a `rotor within the chamber and lying' between the ribs extending from the opposite sides ot the chamber, the ribs on opposite sides ot' the rotor dividing the chamber sections on opposite sides ot' the rotor into a central recess and a way lying outwardly ot said ribs, the ribs lying on the saine sides ofthe rotor being spaced at their ends whereby to establish communication between the central recesses and the ways disposed on a common side of the rotor, the i'otor having` apertures within it for establishing communication between the central recesses disposed on opposite sides of the rotor, and blades extending from opposite sides of the rotor and operating in the central recesses and in the ways, the

casing having a port whereby fluidl may enter one of said central recesses and having a discharge duct whereby fluid may leave the ways, the ribs disposed on that side ot the casing having said port provided thereiii having their ends spaced at a distance greater Vthan they distance between the ends of the ribs disposed Aon the opposite side ot' the rotor. i

5. ln a device of the class described the i combination `of a casing having a `rotor dclian'rlljer therein, the `casing comprising ribs extending into said chamber from opposite sides thereof, 'a rotor within the chamber and ylying between the ribs extending from lthe opposite sides ot the chamber,'the ribs on opposite sides ot the rotor dividing the chamber sections on opposite sides of the rotor into a vcentral recess and a way `lying `ioutwairdly of said ribs, the ribs lying on the vsaline sides of therotor being spaced at their lends 'whereby to establish communication between the central recesses and the ways disposed on a common side ot the rotor, the casing having ports therein for eiliecting communication through the casing with the opposed sections of the chamber, and blades extending from opposite sides of the rotor and operating in the central recesses and in the ways.

6. ln a device of the class described the combination of' a casing `having a rotor chamber therein, the casing comprising ribs extending into said chamber from opposite sides thereof, a rotor within the chamber and lying' between the ribs extending from the opposite sides of the chamber, the ribs on opposite sides of the rotor dividing the chamber sections on opposite sides of the rotor into a central recess and a way lying outwardly of said ribs, the ribs lying on the same sides of the rotor being spaced at their ends whereby to establish coinmunication between the central recesses and the ways disposed on a common side of the rotor, the casing having ports therein for etii'ecting communication through the casing with the opposed sections of the chamber,

blades extending from opposite sides of the rotor and operating in the central recesses and in the ways, and means `for revolving the rotor.

7. In a device of the class described the combination otl a casing having a rotor chamber therein, the casing comlirising ribs i extending into said chamber from opposite sides thereoLt, a rotor within the chamber and lying between the ribs extending trom the opposite sides of the chamber, the ribs on opposite sides of the rotor dividing the chamber sections `on opposite sides of thc rotor into a central recess and a way lying outwardly of vsaid ribs, the ribs lying on the saine sides ofthe rotor being spaced attlieir ends whereby to establishcommunication between the central recesses and they ways disposed on a common side of the rotor, the blades extending from opposite sides of the rotor'and operating in the central recesses and in the ways, the casing having ports whereby Huid inay enter said central recesses and having a discharge duct whereby fluid inay leave the ways.

8. In a device of the class described the combination of a casing khaving a rotor chamber therein, the casing comprising ribs extending into said chamber from opposite sides thereof, a rotor within the chamber and lying between the ribs -extending from the opposite sides of the chamber, the ribs on opposite sides of the rotor dividing the chamber sections on, opposite sides of the rotor into a centralrecess and a Way lying outwardly of said ribs, the ribs lying on the saine sides of the rotor being spaced at their ends whereby to establish communication between the central recesses and the ways disposed on a connnen side of the rotor, and blades extending from opposite sides of the rotor and operating iny the central recesses and in the ways, the casing lhaving ports whereby Huid may enter said central recesses and having'a discharge duct whereby fluid may leave the ways, the ribs disposed on thatside of the casing having said port provided therein havingtheir ends spaced at a distance greater than the distance betweentheends o the ribs disposed on the opposite side of the rotor.v v

In testimony whereof, I have hereunto subscribed iny naine this 9th day of April, 1924.

VICTOR ROSENHAGEN.

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