US2380085A

US2380085A - Rotor

Info

Publication number: US2380085A
Application number: US468750A
Authority: US
Inventors: Carl E Tack; Louis G Vree
Original assignee: American Steel Foundries
Current assignee: American Steel Foundries
Priority date: 1942-12-12
Filing date: 1942-12-12
Publication date: 1945-07-10
Anticipated expiration: 1962-07-10

Description

Jul? 10, 1945. .c. E. TACK ETAL ROTOR 2 Sheets-Sheet 1 Filed Dec. 12, 1942 INVENTORS.

5. (D cad Urea Q.

July 10, 1945. Q TACK ETAL 2,380,085

ROTOR Filed Dec. 12, 1942 2 Sheets-Sheet 2 Ill] 4 III/III] m Q INVENTORS. M6Jac7c Zbee Patented July 10, 1945 um'reo STATES PATENT OFFICE vRDTORJ- cal-1 ck and Louis ee cram, 111. a signers to- American steel Foundries, Chicago, 1112, a corporation of New Jersey Ap lica ion Do mherl 1942, Serial- 04 350 1 GlaimSi (01. 1 -218,)

Our in n on ela e b ak oquinment and;

mo e particu ar to a ake d s frequent y dos ienated a roto and adopt d for connection t n asso i ted rotatin member whe eby a d memb r ayb decel a d v. fr nmoans appliedto the rotor. Our novel rotor is particularly adapted for connection to; the driving wheel of: a track associated with. a track-laying vehicle whereby movement ofthe vehicle may be controlled by braking the rotor. However, I it will be understoodzthat therotor may-be-used for any: analogous purpose to. whichit may be suited:

Aniobjectofour invention is to design a rotor V such as above described which will functionas a centrifugal or peripheral blower; air inlets being afforded whereby. air. may: be drawn be, tween spaced'annular friction plates'of the-rotor and thrown outwardly by means of' bladesrex tending. between the plates;

Inone embodiment of our invention illustrated herein the. blower blades: are substantially flat and radially: disposed andin -the other' 'illu's trated embodiment said blades are radially-undulate for a purpose more iully described in the co-pending application Serial No. 431,069,filedin the United States Patent Ofiice on February 16; 1942, in the name of Carl Tack, Patent No.- 2, 345,016, March 28, 1944;

In the drawings, Figure .1 is 1 a side elevation of ournovel -rotorand Figure'Zis a sectional view" taken in the radial planes indicated by the line 2-2 of Figure '1. Figure 3' is'afurther'sectional" view taken on the'line 3l3oi Figured. I 7

Figures 4 to 6 show'a modification of -our novel rotor, Figure-4 being a 1 sectional view correspondingto Figure 2, Figure 5 *being a sectional view corresponding to- Figure 3, and 'Figure 6* being a side elevation taken from the-right as seen in Figure 4.

Describing our invention in detail and referrihgfirst tothe modification shown in Figures" 1 to 3, our novel rotor comprises an annular support member! of generallycylindrical formand provided: with the inwardly "directed flange thi vin spaced openings 6, 6 for the receptid' r of means'seouring the rotor t an associated rotating member. Integrally formed on the outer'periphery of the member- 2 is a brake ring comprising a pair of spaced 'annular friction plat s vI! a HI; e chlate es ef nf outer surface thereof-'adri'ction surface I2 for engagement: with any suitable braking means as Will be clearly md'erstood by those skilled in" the art; the suriaees. I2, I2 being relieved at I3, I3 to prevent the wearing of shoulders thereon as will be apparent.

A plurality of blades I4, I4 extend between the plates 8 and I0, and it may be noted from a consideration of Figure 1 that these blades are pref- .those skilled in the art.

erably undulate in form for a" purpose hereinafter described. It will be apparent that the blades I4; I4 seryeas columns to resist braking pressures applied to the plates 8 and Ill and,

1 as hereinafter more fully described, saidblades also function as blades of a centrifugal ripheral blower.

Aligned openings IE; IS are formed in the plates 8 and I0 adjacent theirjuncture with the member 2 and a pluralityof openings I.8, I8 (Figure 2) are formed in the member 2, all of "said openings serving as aircinlets and communicating' with the chamber 2|] (Figures 2 and 3) be-' tweentheplates 8 and llli As may beseenin .Figures 1 and 2; the openings I6," I6 are preferably formed'in alternating relationship with the openings I8; I8-,' whereby a pair'of aligned openings I6, I6 are disposed atoneside of each'oi the blades I4, I4 and an openin I8is disposed at the oppositeside of saidblade.

It will be unde'rstoodthat by means of this arrangementair may be drawn into the"cham-' ber 20 from both sides of the brake ring during rotation of the rotor; said air being thrown outwardly by means of the blades. The alternating arrangement'of the openings I6, I6 and I 8,

l8 facilitates uniform'coolingof the plates 8and' IUand-also tends'to prevent deleterious stress concentrations as may be clearly apparent to It may be emphasized that the openings I6, I6 in the plate'IIl afford air'inlets in the side of the brakering adjacent the member to which therotor is secured by means of the flange 4; thus afiordingair intake ,from what is normally adead space between the-rotor and the associated supportin member.

Theundulate-fo'rm of the blades I4, -I4,as will be clearlyapparent'to those skilled in the'art, servesto cause turbulance of the air passing through the chamber 20 whereby greater cooling of the plates 8 and ID will be effected; as more fully described in the above-mentioned co pend ing application.

It will be understood that the member 2 may be attached in anyconvenient manner to the associated rotating'element or may even be integral therewith if desired, and it will be further understood that if desired the brake ring may comprise three or more plates with blades extending between adjacent plates" as shown and described in detail in said co-pending application.

ifi a o'ni f' ou no el r t is hownn Figures 4 to 6 wherein the annuIarsuppOrtmemF e I0 o g n raill i y duca t nnis pro ded with"the"inturned annular flange I84 havin 'a plurality of openings I 06, I06 therethrough for the reception of any convenient means afiording securement for the rotor to an associated rotating member. Integrally formed on the outer periphery of the member I 02 is a pair of spaced annular friction plates I08 and H0, and extending between said plates are the spaced flat blades I I2, H2 preferably radially disposed,,said blades H2, H2 corresponding to the blades I 4, I4 described for the previous modification. The plate I08 is 1;

provided with a plurality of openings H4, I I4 the plates I08 and I I and the plate I I0 isformed with a plurality of openingsI I8, II B. communieating with the chamber H6 and preferablyah ternately arranged with respect to the openings asdoss communicating with the chamber II 6 between inlet, through-said member on the opposite side of said blade.

6. In a rotor, asubstantially cylindrically support member,, a pair of annular friction plates H4, H4, whereby an opening II 4 is disposed atone side of each blade H2 and an opening H8 is formed at the opposite side of said blade, the alternating relationship of the openings H4, H4 and II8, II8 affording equalized cooling of the plates I08 and H0 and serving to reduce the possibility of. undesirable stress concentrations.

It will be understood that during rotation of the rotor air will be drawn into the chamber I I6 through the openings H4, H4 and H8, H8 and will be thrown outwardl by means of the blades H2, H2, said rotor thus functioning as a centrifugal or. peripherial blower to afiord cooling of thefriction plates I08 and I I0.

Itis. to be understood that we do not wish to be limited by the exact embodiments of the device shown which are merely by way of illustration and not limitation as various and other forms of the device-w'ill, of course, be apparent to those skilled in the artwithout departing from the spirit of the invention or the scope of the claims.

We claim:

1. In abrake rotor, a substantially cylindrical support member, a brake ring formed on the outer periphery thereof and comprising a plurality of spaced plates, transverse blades extendingbetween said plates, fluid inlets formed in the side of said ring adjacent-its juncture with said member, said inlets communicating with the space between said plates, the inlets in one side of said ring being alternately arranged with respect to the inlets on the opposite side of said ring.

2. In a brake-rotor, a substantially cylindrical support member, a brake ring formed on the outer periphery thereof and comprising a plurality of spaced plates, transverse blades extending between said plates, and air inlets formed in the sides of said ring adjacent its juncture with said member, said inlets communicatingv with the space between said plates, and openings in said member also communicating with said space.

3. In a brake rotor, a substantially cylindrical support member, a pair of spaced annular friction platesformed 0n the outer periphery thereof, said plates defining a chambertherebetween, spaced blades extending between said plates, a plurality of openings through said member communicating with said chamber, anda plurality of openings through said plates adjacent their juncture with said member, the openings through said plates being in alignment and bein alter-, nately arranged with respect to the openings through said member.

4. In a brake rotor, a substantially cylindrical support member, a pair of spaced annular friction plates formed on the outer periphery thereof, spaced blades extending between said plates, and a plurality of openings throughsaid plates formed on the outer periphery thereof, radially undulate blower blades extending between said plates, and air inlets through said plates and through said support member, said inlets communicating with the'space-between said plates.

7. In a brake rotor, a cylindrical support member, a brake ring on the outer periphery thereof comprising a plurality of plates defining a fluid chamber open at its radially outer extremity to afford a fluid outlet, and blades extending between said plates, said ring having fluid inlet slotsin the sides thereof adjacent the junctureof said ring with said support member, said blades joining the outer periphery of said support memher at opposite sides of each .slot, the slots in. one side of said ring being alternately arranged. with respect to the slots on the opposite side oi said ring.

8.'In a rotor, a brake ring comprising a pairof annular friction plates, blower blades extend-- ing between said plates, a support member connected to said plates and to said blades, aligned. fluid inlets in said plates at one side of each; blade, and a fluid inlet through said mem-beron: the opposite side of said blade, said inlets communicatin with the space between said plates- .9. In a brakerotor, a substantially cylindrical support member, a brake ring formed on the outer periphery thereof and comprising a pair of spaced plates each having spaced inwardly pro-- jecting portions thereof connecting said ring tosaid member and forming therewith a plurality offluid'inlets in the sides of said ring, and transverse blades extending between said plates, the space between said blades and plates providing passages communicating with said fluid inlets.

10. Ina brake rotor, a brake ring comprising spaced plates defining a fluid chamber, blades extending between and connecting said plates, said blades forming radial fluid passages through said chamber, an annular integral support member for said brake ring, fluid inlets through said plates communicating with said passages and other fluid inletsthrough said member communicating with said passages, and means-connected to one end ising