US1781610A - Governor attachment - Google Patents

Description

New. 11, 1930. A, As, TOROK 1,781,610

GOVERNOR ATTACHMENT Filed Oct. 3lI4 1923 Y 2 Sheets-Sheet l me i-\ {llfieisqlllllllllllllllll wlw/a SL75/faz wnNEss. ATTORNEY .N). 11, 1930i. A. s. ToRoK 1781610 GOVERNOR `ATTACHMENT Filed Oct. :5ll 1928 2 Sheets-Sheet 2 Patented Nov. 11, 1930 TES MNITED; STA

' ATILLA s. Tonox, or CUMBERLAND, MARYLAND y GovERNoR ATTACHMENT the cover of the turbine housing to effect ad-V justmentofthe governor'which controls the steam inlet` valvel This adjustment is neces` sar from time to time in order to keepv the turliii speed, as the partsof the governor are sub.- ject to wear and this wear increases the degree of movementfof the governor with a constant increaseof vthe degree4v of opening movementof the steam inletv valve and the speed yof` 'operation" ofthe turbine.

The present invention overcomes the above and other disadvantages by providing means for vadjusting the l governor from the outside of the turbine' housing; so thatadjustment may be quickly made without removing the cover. e l

Another object of the invention is the provisionfof a governor adjusting means which may be appliedto'the turbine governor with-` 1 out changing the' construction of the latter and with very little expense.v l With the aboveand other objects in view the invention further includes the following n'ovelfeatures and l"details of construction, to behereina-fter ymorevfully described,y.illus trated in the Aaccompanying, drawingsand pointed out inthe appendedVV claims.-`

In the drawngs:.-' Y Figure 1 is a sectional viewillustrating the inventionV appliedvto the governor for controlling a turbine. y Y

Figure 2 is an'enlarged .fragmentary sectionytaken `longitudinally of the turbineV 45 shaft and at right'angles to Figure 1.

Figure .3 is a fragmentarysection taken on the line 3 3 of Figure '1. j Figure 4 is adetail"`sectionfon the-line 4-4- of Figure3;` I

Figure isafaceview of the ring gear.

ne operating at amore orlessuniform wardly by centrifugal force.

Figure '6 is afragmentary section on the line @+6 of Figure l.

Figure 7 is anend view ofthe operating .memberjshowing a fragmentary portion of, 'the cover of the turbine housing.

Referringto the drawings in detail wherein likejcharactersof reference denote correindicates the housing `of aturbine which is provided vwith a cover 11; This coveris rc! i.ATcuir: OFFICE "sponding parts, the reference character 10 movably secured .in place by bolts 12 so that i' access may be had to'the'inte'rior of the housing.

andpis mountedin suitable bearings and may j be operatively connected with the shaft of. a generator or other machin'e'or device.

`Mounteduponthe shaft isa turbine wheel or rotorA 14 which is provided around `:its periphery with bucketsl', while steam orY other fluidisadmitted to the housing for passage throughthe buckets through an in- Vlet'port 16'.` nozzleor other suitableY means they fluid tov the rotor. s Y Y 1 The port 16 is controlled' by a valve 17 and (not shown) maybe employed for directing The ,shaftlof the turbine: isindicated at 1.3, l 'y the position of this valveyis automatically controlled by means ofagovernor.

TheA governor referred to includes oppositely located weights 18 whoseiinner. ends 19 areconcaved to accommodate .the shaft 13. The lweights are vprovided with beveled y lugs 20V which;l operate uponseats 21 provided upon the'turbine wheel or rotor 14.

Theweights 18 :are thus' mounted for piv;v

otal movement so ythat they may move outn Outward ,movement yof the sistedbymeans of ya sleeve 22 whose inner end bears against the ends 19 of the weights and whose outer end is provided with an annular `flange 23. 'A retractile spring 24 has one of its ,ends threadedly engaged with the weights Vis resleeve 22adjacent the liange 23 while the opn posite lend-of this spring is threadedly en- 2 er and lthis holder 4.has pivotallysecured thereto as shown at 31 one end of a bell crank lever 32, the latter being pivotallylmountedwithin the housing as shown at 33.', The other arm of the lever 32 is yieldinglyfforced outward under .the action of a spring 8,4 which yieldingly tion. 1 Y i As thus far describedoperation` of the wheel 14 will, Whenthewheelreaches a pre-` determined speed, .cause the weights 18 to movejoutward.l This'rmovement isresisted by the sleeve 22 whosejnner end bears against the inner ends 19 of the Yweights `18. Any

outward movementof the arms `however will cause the sleeve-22 to be moved axially of the shaft 18' so thatthe loellfcrank lever 32 will be moved upon its pivot 33 to move the valve 17 in a direction to close or partly close the inlet portlandthuscut down or kcut oft' the "supply of steam. The construction and operationthus far described forms no part of the present invention, the latter relatingto means for operating thescrews 28.

y i, Heretofore in th1s type ofj'turbine it was necessary `to remove the cover 11 to obtain access to the screws 28 so thatthe latter might Y be adjusted to adjust the tension of the spring 24 and. thus control the movement of the sleeve 22 and the automatic operation of the valve'v 17. InV addition tto `initial adjustment ofr these screws, wear upon the inner ends 19 of the weights 18 and the points of contact` of these arms with` the sleeve 22 yand the adj acentportion of the turbine wheel, requiresfthat adjustment. of the governor `be made` from time to, time to compensatefor this wear. lToovercomeLthe disadvantage ofhavingtoremove thecover :11, the present in- .,gention providespinions 435 around the heads f of the screws ,18 and. these pmions areengage'd by the internal teethlt of a ring gear 37 .T ,Thisjgearis mounted for rotation upon an annular rib orflange 3,8 which issecured to the tiiirbijne `wheehby means :of screvvs89 'and4 this'purpose, .the gear 37. is provided with b annular groove 40 to receive this rib or The gear ,3.7 is heldin position bymeans lof segmental retaininggplates A41 which aresecuredffto theturbine by means of `screws4,2.v i

T efgearf? isalsov provided with external engaged l)b holds thevalvev in open posi-A fthe rotatable element-S1: teef-1.1 ,43 audatlwseteeth are, adapted ,iQ .bev n,

tends through the cover 11. This shaft is mounted for longitudinal sliding movement in a bearing 46 and extends through a packing gland 47, and is provided upon its outer end with a head 48 whose shape and size conforms to thev shape and size of the heads of the bolts 12, so that the s amewrench may. be vused for these members. A spring 49 sur- 'rounds the shaft 45 between the packing Vgland 47 and the head 48 and acts to yieldingly` forcetheheadoutward so that the pinion will be normally disengaged from the teeth43 of-thering gear 37.

When is desired, lt o,k adjust the tension of the `spring 24 for`^tliepurposes previously mentioned, theshaftis moved-inward so thatthe pinion44willengage the teeth V48",

whereupon lthe screws 28 maybe simultanea, ously rotated to move the -yoke 425` axially ,of

the shaft 13 and increaseor decrease-the ten-i 85 sionof the springv24. l v v i If desired, vthe lscrews, 28 may hfwetheir heads provided with kerfs 5O4 so. as to, permit?, of thek use of a screwdriver or othervtool:v in initially positioning the screws.

While the governor adjusting .means is `g shownand describedV in connection withQfa, turbine, itis of course obvious that it may-.beused uponother typesof machines .Whereha governor of this character is.y employed.

The inventiony is susceptible. of various changes 1n its form, proportions ,and'minorw l details o'fconstruction and-the right is here-f. 1n reserved to make suchI changes as .properly yfall Within tlief'scope of, the appended claims.,1,0015` Having describedthe invention is claimed is: .l v Y -Y l. In a turbine, ,a housing, a turbinewheelf mounted for rotation thereinyahvalveS controlledinlet port, ,a centrifugal .governor .located within the housing and operatively.Y connected to the turbine wheel, means yacted upon by thegovernor.to` operate the ,valv,e,

of the inlet port and `control Ltheqspeedof the turbine wheel, means to adjust the gov- Y ernor to regulate the operation of the (valve, and means operable `from theyoutsideofthe housing and `normally disengaged frointhe ,4., governor adjusting means tosope'rate the latter.

2. In a turbine, a housing, a turbine wheel mounted for rotationtherein, a valve ,con- 3 trolled inletport, a centrifugal governoru located within the housing and operatively connected to the turbine Lwheel', meansacted` upon bylthefgovernor to 'operate the lvalve of the inlet port and controldthesfpeed-of the turbine wheel, .means including rotatable elements toy adjust the governor` and .regu-3' `late the operation ofthe valve,'andimeans extending. lthrough the hou-sing fitoy operate 3. v,In a-turb-`ne,v, a-housing, a vturbine-,wheelA located Within the housing and operatively connected to the turbine Wheel, means acted upon by the governor to operate the valve of the'inlet port and control the speed of the turbine Wheel, rotatable elements engageable with the governor to regulate the operation of the latter, a gear carried by the turbine Wheel and operatively connected With the rotatable elements,y and means extending through the housing and normally disengaged from the gear to engage and operate the latter to operate t-he governor adjusting means.

4. In a turbine, a housing, a turbine lWheel mounted for rotation therein, a valve oontrolled inlet port, a centrifugal governor located Within the housing andV operatively connected to the turbine Wheel, means acted upon by the governor to operate the valve of the inlet port and control the speed of the turbine Wheel, rotatable elements engageable with the governor to regulate the operation of the latter, a gear carried kby the turbine Wheel and operatively connected with the rotatable elements, a shaft mountedforaxia'l' and rotary movement from one Wall of the housing, and a pinion carried by the shaft and adapted to be moved into engagement with the gear to operate the governor adjusting means. l

In testimony WhereoiI I aix my signature.

ATILLA S. TOROK.

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