US2302906A

US2302906A - Governor

Info

Publication number: US2302906A
Application number: US349034A
Authority: US
Inventors: Herbert C Edwards
Original assignee: Timken Roller Bearing Co
Current assignee: Timken Co
Priority date: 1940-08-01
Filing date: 1940-08-01
Publication date: 1942-11-24
Anticipated expiration: 1959-11-24

Description

Nov. 24, 1942. .4, C, EDWARDS 2,302,906

GOVERNOR Filled Aug. 1, 1940 s sheets-sheetA 2 hifi Nav. 24, 1942. H; c. EDWARDS GOVERNOR Filed Aug. 1, 1940 in Fig. 4,

Patented ov. 24, i942 (GVERNOR Herbert C. Edwards, Massillon, Ohio, assignor to The Timken Roller Bearing Company, Canton,4

- Ohio, a corporation of Ohio Application August 1,1940, serial No. 349,034

15 Claims.

This invention relates to speed regulating devices for internal combustion engines and more l particularly to governors for automatically controlling the output of fuel injection. pumps for compression ignition engines. One of the objects I of the present invention is to provide a comthe engine. Other objects are to adapt the governor for application to existing types of fuel injection pumps, to adapt the governor for mounting on either end of the injection pump Without interfering with the pump drive, to provide a single spring for controlling the full speed range of the engine above idling speed, to'decrease the effort required to hold the throttle leverin any position and to obtain other advantages hereinafter appearing. The invention consists in the governor and in the construction, combinations and arrangements of parts hereinafter described and claimed.

In the accompanying drawings, which form part of this specification and wherein like symbols refer to like parts wherever they occur, Fig. 1 is a planview of a speed governor embodying my invention,

Fig. 2 is a side 'elevational view of said speed governor,

Fig. 3 is an outer end view of said governor,

Fig. 4 is an enlarged central vertical longitudinal section on the line 4-4 in Fig. 3,

Fig. 5 is a fragmentary cross-section on the line 5--5 in Fig. 4,

Fig. 6 is a fragmentary vertical section on the line 6-6 in Fig. 4,

Fig. 7 is a fragmentary section on the line 'l--l Fig. 8 is a fragmentary vertical section on the line 8-'-8 in Fig. 6,

Fig. 9 is a fragmentary section on the line @-9 in Fig. 4,

figs. 10 and 1l are enlarged cross-sections on the lines lll-lli and li--l l, respectively, in Fig. 4.

Fig. 12y is an enlarged central longitudinal sectional view of the thrust sleeve nut,

Fig. 13 is a side elevational view of the control lever shaft,

Fig, 14 is a cross-section on the line ld-i in Fig. i3,

Fig. 15 is an end elevation 0f the yoke lever, looking at the fuel feed control rod and high speed spring receiving end thereof,

` Fig. 16 is a fragmentary side elevational view o-f said yoke lever; and

Fig. 1 7 is a central vertical longitudinal section through the lower portion of the governor showing the arrangement of the drive gear therein when the governor is attached to the opposite end of the fuel pump.

The centrifugal speed regulating device or gov.. ernor shown in the accompanying drawings comprises a housing A adapted to be removably secured flatwise to one end of afuel injection pump of which only adjacent portions of the housing B, the reciprocatory fuelcontrol rod C and the rotary cam shaft Dare shown. The cam shaft D is adapted to be driven by or in unison with the l compression ignition engine (not shown) supplied. by said pump; and the fuel controlv rod C is slid in the direction of the governor to decrease the quantity of fuelsupplied tothe engine and is slid in the opposite direction to increase such fuel supply. The pump opposing end Wall of the governor .housing A has vertically spaced openings l and 2 extending horizontally therethrough adapted to receive the ends ofthe control rod C and cam shaft D, respectively.

Mounted on the portion of the cam shaft D located Within the governor housing A is a sleeve I having a tapered bore adapted to fit a tapered seat 4 provided therefor on said shaft adjacent to the end thereof. This sleeve is nonrotatably secured to the tapered portion 4 of the cam shaft D, by means of a key 5. The cam' shaft terminates in a 'threaded end portion 6 having a nut 1 threaded thereon; and this nut serves to clamp the sleeve 3 on the tapered portion 4 of said shaft, thereby preventing relative endwise movement of said shaft and sleeve.- Mounted on the sleeve 3 is a bevel drive gear 8, which is secured to said sleeve by means of a spline 9 that permits relative axial movement of said gear and sleeve while preventing relative rotary movement thereof. Surrounding the sleeve 3, between the front end wall ofthe governor housing A and the adjacent end face of the drive gear 8, is a washer l0 adapted to receive the -end thrust of said gear. v

governor` shaft I2 located in the upper portion of the governor housing A above andvat an oblique-angle to the drive gear 8. 'This governor shaft I2 inclines upwardly and outwardly in the governor housing A at an angle of about'fortyfive degrees and is journaledtnear its lower and upper ends in suitable tapered roller bearings I3 and i4, respectively, located in said housing. The bearing I3 for the lower end of the governor shaft I2 is mounted in a split pedestal I5 provided therefor in said housing; and the bearing I4 for the upper end of said shaft is supported in a recess I6 provided therefor in the upper outer end corner portion of said housing. Interposed between the inner end of the recess I6 and the bearing I4 therein is a cup-shaped thrust washer or disk I1 which is held in abutting relation to the adjacent'end of the outer raceway member of said bearing by means of a. stud I3 that is threadegsthrough the governonhousing in axial alinementwith said bearing and is locked in adjusted position by asuitable lock nut I9 and lock washer 20. By means ofl this stud, end play of thegovernor may be adjusted from outside tihe goernor housing.

Mounted' on the governor shaft I2 adjacent to the upper vend of the bearing Iltherefor is a. paddle wheel 2i which is clamped between the endA of the inner raceway member of said bearing and a washer-22, which is held in place on the governor shaft by means of a snap ring 24 seated in an annular groove provided therefor in said shaft. The paddle wheel 2| works in the bearing receiving bore of the bearing supporting pedwise fixed to said shaft. Each of these. centrifugal levers 34 is provided at the end remote from its weighted end with a finger 31', which is adapted to abutagainst the spider 36 and limit the outward swinging movement of said lever, and a finger 33 that is adapted to exert an end thrust on the lower end `of the thrust sleeve 33 through a thrust washer 39 sleeved on the governor shaft I2 in abutting relation to the lower end of the sleeve nut 40 which is threadedon the lower end of said thrust sleeve, .The sleeve -nut 44 is lo'cked in the desired position' of adjustment on the thrustl sleeve 33 by means of a locking sleeve A4I that has axially sliding but non-rotary connections with said lock sleeve and vwith said thrust sleeve. The connection between the lock sleeve 4I and the thrust sleeve v33 comprises a lug 42 on the upper end of the lock sleeve that seats in a longitudinal groove 43 in said thrust sleeve,v andthe connection between said lock sleeve and the sleeve nut 40 comprises a series of circum- .ferentially spaced lugs 44 on the lower end of said lock'sleeve thatseat in but are disengageable endwise from a corresponding series of longitudinal peripheral grooves 45 in saidv sleeve nut.

. The lock sleeve 4| is yieldably held in engageestal beyond the upper end of the bearing I3 therein; and the upper end of said bore is closed by means of an annular closure member 25 that seats in said bore and has a central opening for' the governor shaft I2. By this arrangement, the

intermeshing gears B and I I pick up oil contained in the lower portion of the governor housing A and throw it against the lower roller bearing I3;

and this bearing functions asa pump to force' such oil through the; bearing into the portion of the bore in the pedestal I2 in which the pedal pentrifugalpump to force.4

wheel operates asv Y the oil out through asmall passage in the bearing cap. around one of v.the securing studs therefor. The split pedestal I5 is provided with a cap 28 ythat is removably secured to the portion of the pedestal formed integral with Vthe vgovernor housing A by means of cap screws 21. As shown between the annular space and the lower end of an axial bore 3i in the governor shaft I2 through a tube or conduit 32. Thus, the oil is conveyed through the tube 32 from the annular space 29 to the axial bore* 3| in the governor shaft and then forced upwardly through said bore into the supporting recess IB for the upper bearing I 4 from which it is thrown by the pumping action of this bearing into the upper portion of the governor housing to lubricate the parts'hereinafter4 referred to located thereon.

jextendine annularl supporting ment with the sleeve nut 43 by means of a c'oil compression spring 4I that is sleeved on the thrust sleeve 33 between said lock sleeve and an annular flange 41 on said thrust sleeve.

Mounted on the upper end of the thrust sleeve 33 between the collar 41 thereon and the 'upper end thereof isa'suitable ball thrust bearing 4l;

and mounted onth'e outer raceway member of this bearing is a vnieuwe 4I having an inwardly upper end thatfseats' lon the upper end The thrust bearing sleeve 48- 'also has an outstanding 'peripheral thrust flange II at the lower end, the purpose of which will hereinafter appear. A yoke lever l2 has a hub l! Journaled on roller bearings 54 mounted on a horizontal shaft 55 that extends from side wall to side wall of the governor housing A above and clear of the centrifugal levers 34. This yoke lever is yprovided on one side of its hub 53 with a pair of relatively short downwardly curved arms 3l that extend on Opposite sides of the thrust bearing 48 and terminate in convex ends 3,1 that bear' against the upper surface of the outstanding thrust flange 5I ofthe sleeve supported on said bearing. 'I'he yoke lever 52 is provided on the opposite-side of its hub 53 with a pairof spaced, relatively long. downwardly' curved arms 58 that are cross connected at their lower ends by a cross bar or head 59 that is" riveted or otherwise rigidly secured to said armagThis cross bar 59 is located adjacent to the end ofthe endwise slidable fuel control rod C of the fuel injection pump and has a rectangular downwardly opening trackway 60 formed therein'for a pair of A thrust sleeve 33 is slidably mounted on the governor shaft I2 and is adapted to be slid upwardly along said shaft by means of a pair of weighted centrifugal levers 34 that are pivotally supported one on each side of said shaft on horizontal pivots 35 carried by pairs of ears or lugs on the upper end of a spider 36 that is pinned or othern rollers 6I vsupported onoppcsite sides of the'fuel control rod by means of a pin l2 that extends horizontally therethrough, said trackway having anv opening 33 through the sides' thereof through which the control rod extends.

The'cross bar 59 'of the long arms 5l of the4 yoke lever 52 has an extensible link and spring connection with a horizontal control shaft 34 located thereabove. The control shaft 34 is journaled atits ends in bushings mounted in horizontal openings provided therefor in the side walls I or the governor housing A, said bushings being held in said openings by annular plates that flange I3 at the aresecured to said housing in abutting relation to the outer ends of the respective bushings; and

*saidv shaft has an upwardly offset portion or crank 81 located above the cross bar 59 of the yoke lever 52. The connection between the cross A -bar It and the control lever 52 comprises a pair of axially alined upper and lower links .il and Il, respectively, and a coiled tension spring 10 asoasoo V,

only when thehigh speed spring 1I isfullyconhereinafter referred. to asthe high speed spring,

which surrounds said links and has its end por-v a depending .central lug12 at the top oi' said crank and a pair of upstanding lugs 13 disposedv one on each side of said lug on the upper end of said The lower end of the lower link 69 `has a slot-and-pin connection with a plate 14 secured t'o the crossbar 59 of the yoke lever 53 centrally of said bar. The connection comprises a horizontal pin 'lthat extends through alined openings-in a pair of depending lugs 18 on the lower link S9 and a single opstanding lug'11 on the plate 11,-the lug 11 being 'disposed in line with the axis of said linkl and parallel with the the direction ofsaid axis to form a` slot 18 which permits relative movement of said yoke lever and said lower link'when the high speed spring is not under tension. The lower spring si demanded under idling conditions.

supporting link 69 h as a cylindrical main bodyrv portion with an axial bore 19 extending therethrough and the upper link 68 has a depending axial stem adapted to' enter saidbore when the A high speed spring 10 contracts.

The control shaft u extends exteno'rly of 'the a manually operable control lever 8i fixed thereo 'to.' The cooperating portions of the shaft and lever are provided with. intertting y grooves 82 whereby said lever may be angularly adjusted on. said shaft. The hub portion of the control v clamping screw 83 for locking said lever in the desired position of its angular adjustment. The 5o spring being at aminimum athe low Aspeed seslever 8l is split and provided vwith a swinsingmovement. or the eontmllever; el is limited in the direction of its highspeed -setting Y. by an adjustable stop screw 8l which is threaded' through a'plate fixed Ato the side of the govamor housing A and is disposed in .the path'of -is. lug II that projects radially from the control shaft ll between said lever and saidside of said I. '.housing. AA maximum fuel Quantity stop comprises an downwardly adjustable stop pin 81 that' extends through the top of the governor housing A in position 'to be engaged by a fiat The upper link is plvsupporting pin 1| for the upper link 88 and the 3oV opening through the lug 11 being elongated in vgovernor housing A, on one side thereof and has tracted.

The operation of vthe hereinbefore described centrifugal speed governoris as follows: When the centrifugal weights u on the governor shaft i2, which is driven byor in unison with the engine, are closed, the fuel control rod C'is in itsposition oi maxlmu'mfuel feed; and when said weights are fully open, said fuel rod is in its position of minimum fuel feed. As said weights swi'ng outwardly due to increased speed of said shaft, the fingers '3l of these weights force the thnxst sleeve and the thrust bearing?" carried there- -by upwardly along the governor shaft. During -this upward movement of the thrust bearing 48, the thrust nange ll carried thereby pushes upwardlyagainst the curved lower ends 51 of the short arms El of the yoke lever 52, thus-rotating said lever on its supporting shaft 85 and causing 'the long arms v|58 of said lever to swing downwardly toward the front end of the governor and move the fuel control rod C, which is operatively connected to said arms through its track and roller connection 60, GI with the cross bar l! thereof, in the direction of decreased fuel feed and thus decrease the speed of the engine. When the control lever 8i is set for idling speed, the crank 6| of the control shaft il is .moved in the direction of the yoke lever supporting shaft 55 and the lhigh speed spring 10 is under minimum tension v and the slot-and-

pin connection

15, 18 between the lower spring supporting link 69 and the yoke lever 52 permits the idling speed spring 89 to come into play to stabilize the governor and adapt u I the spring load to the weight load at'the speeds control lever 8| is moved further from its idle speedsetting, the links i8 and and the high fuel control rod C to ia fuel cut-off position. When thecontrol lever 8l is Vset for maximum high-speed, the crank 61 is swung' away from the yoke lever supporting shaft and the high speed ribs and/ spring is *stretched to its maximum tension when' said crank bumps against the pump opposing end wall of the governor-housing. Whenthe control c lever si is setforl any speed above idling speed,

the high speed spring llrisplaced under tension by the upward swinging movement ofthe crank 61" of the control shaft |I, thestension on said ting andata maximum jat the highest speed setting. 'In all high speed settings of the control lever 8l, the fuel'control rod^C ls-set to deliver the proper quantity of fuel'and the centrifuga-l governor weights 34 and the high speed spring 1il abutment'surface 8B formed on the upper edge i of .one of the long arms 5l of the yoke lever Il. These two stops limit the operators control `over the output of the fuel pump.

A coiled compression spring 8l hereinafter referrcd to as the idling speed' spring, is located inthe governor housingV A, with its upper end seated in a fitting 9o threaded through the-top cooperatevto shift the fuel control rod C in'either direction and thus maintain within theregulatei limits of the particular setting the engine spd selected by the operator regardless of the load' applied, provided the load is within the capacity of the engine. The high speed spring 1l i s pivotally suspended from the crank l1 centrally thereof and extends in a straight'lineI from this pivotal support to its pivotal connection with the .yoke lever 52 midway of the length'of the cross bar connection il between-the long arms 58 of said lever. Thus, 'as' the crank 81 'swings about the axis of thethrottle or control shaft 8l, the

spring 1U has a varying moment'arm relative to the lin'e of action of the weight force on the thrust sleeve 33 that is greater at high speed and lesser at idle speeds. On the other hand, the .weight forces at the various speed settings of the control lever 8l also increase as the speed of the engine When the increases. At any xed setting of crank 61 the high speed spring 10 has the same moment arm relative to line of weight action and, therefore, th'same slope of increment of force over the weight force over the full range of travel of control rod. This spring arrangement provides a closer regulation in the various high speed settings ofthe control lever and it enables the same spring to be used for all high speed settings and limits the top speed of the governor to any one of these settings with satisfactory regulation. It is noted that the crank or control shaft 64 which constitutes the throttle shaft, is arranged so that, as the high speed spring tension increases, its effect on the yoke lever 52 is decreased due to the angle of action of said spring having a decreased moment arm about the center of the crank shaft. Y

ing or shortening said thrust sleeve; and this adjustment is made through an opening which is located in the governor housing opposite said sleeve nut and is closed by a screw plug 9|. The governor shaft end thrust adjustments are made from the outside of the governor housing by means of the adjusting screw I8. The beveled drive' gear 8 is adapted to rotate with and also slide axially of the pump shaft D, this endwise floating movement of the drive gear being limited in one direction by the gear II of the governor shaft I2 and in the other direction by the thrust Washer Iii back of tile drive gear, This floating gear arrangement provides proper meshing of the gears 8 and I I and tends to iron out impulses due to the separate fuel injections and prevents such impulses from being transmitted vto the centrifugal governor weights, thereby improving the governor action on the engine. Proper lubrication of al1 of the parts in the upper portion of the governor housing is provided by the pumping acl tion of the lower bearing I3 and the paddle wheel 2| which force the lubricant upwardly through 95 extends, suitable oil seals |00 are provided between said coupling member and said housing and an end thrust washer I III is disposed between the drive gear 91 and said end wall of said housins.

Obviously, numerous changes may be made without departing from the spirit of my invention. Therefore, I do not wish' to be limited to the precise arrangement shown and described.

Reference is hereby made to my copending application Serial No. 461,182` flled October 7, 1942, for subject matterl shown but not vclaimed herein.

What I claim is:

l. A speed governor for internal combustion engines including a horizontally reciprocable fuel feed control member, said governor comprising a horizontal drive shaft adapted to operate in unithe borev of the governor shaft I2 into the upper bearing I 4 and thence into the upper portion of the governor housing. f

The governor housing A is preferably made in two sections, one of these sections being a mere plate 93 that is bolted to one end of the injection pump housing B and the other section 94 containing all of the working parts which are assembled and adjusted therein at the factory.

The lbeveled drive gear 8 of the hereinbefore described governor is shown attached to the end of the pump cam shaft D remote from the drive receiving end thereof. In some instances, however, it is desirable to connect said gear to the drive receiving end of said shaft. In such case, as shown in Fig. l7,`one `of the members 95 of the coupling, whichconnects the cam shaft D to the driving shaft (not shown) therefor, is rigidly secured by means of a nut 96 to the drive receiving end of said cam shaft and the drive gear 91 is mounted on said coupling member and has a `longitudinal spline connection 98 therewith which permits relative axial sliding movement of said gear and coupling member while preventing relative rotary movement thereof. In this construction, the outer end wall of the governor housing has a horizontal opening 99 therethrough' through which the hub of the coupling member son with said engine,I a governor shaft located above and at an oblique to said drive shaft, a driving connection between said drive shaft and the lower end of said governor shaft, centrifugally actuated means mounted on said governor shaft, a lever pivoted 'on a horizontal axis disposed above and transversely of said governor shaft and having one arm arranged for actuation by said centrifugal means when the speed of said governor shaft increases, and anoth'er, downwardly extending, arm adapted to be operatively connected adjacent to its free lower end to said A fuel feed control member, and a manually operable rock shaft disposed parallel to said lever axis above the point of connection of said second mentioned arm of said lever and said fuel feed control member, said rock shaft having a crank portion, and a tension spring having its upper end sustained by said crank and its lower end f voperatively connected to said second mentioned arm of said lever adjacent to its point of connection to said fuel feed control member.

2. A speed governor for internal combustion engines including a horizontally reciprocable fuel feed control member, said governor comprising a horizontal drive shaft adapted to operate in unison with said engine, a governor shaft located above and at an oblique to said drive shaft, a driving connection between said 'drive shaft and the lower end of said governor shaft, centrifugally actuated means mounted on said governor shaft, a lever pivoted on a horizontal axis disposed above and transversely of said governor" shaft and having one arm arranged for actuation by said centrifugal means when th'e speed of said governor shaft increases, and another, downwardly extending, arm adapted to be operatively connected adjacent to its free lower end to said fuel feed control member, a manually loperable rock shaft disposed parallel to said lever axis above the point of connection of saidsecond mentioned arm of said lever and said fuel feed control member, said rock shaft having a crank portion adapted for swinging movement towards and away from the pivotal axis of said lever, and a tension spring having its upper end pivotally sustained by said crank and its lower end pivotally connected to said second mentioned arm of said lever adjacent to its point of connection to said fuel feed control member, and a compression spring cooperating with said first mentioned arm of said lever and operating to yieldably resist movement imparted to said lever by said centrifugal means when said tension spring is substantially fully contracted.

3. A speed governor for internal combustion engines including a movable fuel feed control gine, a housing having an justing said governor by said first mentioned gear, means for adjusting said governor shaft axially in said housing, centrifugally actuated means mounted-on said governor shaft, a lever journaled in said housing for vertical swinging movement therein, said lever i having one arm operatively engaging' said -centrifugal actuated means and another arm adapted to be operatively connected to said fuel feed control member, a horizontal rock shaft journaled in said housing and having a crank disposed above the point of connection between said lever and said fuel feed control member, a coil tension spring, a support for the upper end of said coil tension spring pivotally suspended from said crank, and a support for the lower end of said tension spring having a connection with said second mentioned arm of said lever.

4. A speed governor for internal combustion engines including a movable fuel feed control member, said governor comprising a horizontal shaft adapted to operate in unison with said enopening -therein for said shaft, a governor shaft mounted in said housing above and at an angle to said first mentioned shaft, a gear mounted in said housing and having an axially slidable but nonrotatable connection with said first mentioned shaft, a gear on said governor shaft intermeshing with and driven by said first mentioned gear, means for adshaft axially in said housing, centrifugally actuated means mounted on said governor shaft, a lever journaled in said housing for vertical swinging movement therein, said lever having one arm operatively engaging said centrifugal actuated means and' another arm adapted to be operatively connected to said fuel feed control member, a horizontal rock shaft journaled in saidhousing and having a crank disposed above the point' of connection between said lever and said fuel feed control member, a coil tension spring, a support for the upper end of said coil tension spring pivotally suspended from said crank, a support for the lower end of said tension spring having a slot-and-pin connection withl said second mentioned arm of said lever, and a coil compression springmounted in said housing above said first mentioned arm of said lever and adapted to yieldably resist move- -,ment imparted to said lever by said centrifugal means when said tension spring is substantially fully contracted.

5. A speed governor for internal combustion engines including a horizontal reciprocable fuel feed controlmember with a roller rotatably secured thereto, said governor comprising a horizontal shaft adapted to operate in unison with said engine, a housing having an opening therein for said shaft, a governor shaft mounted in said housing above and at an oblique angle to said first mentioned shaft, a bevel gear mounted in said housing and having an axially slidable but nonrotatable connection with said first mentioned shaft, a bevel gear on the lower end of said governor shaft intermeshing with and driven by said first mentioned bevel gear, a thrust washer interposed between said first mentioned gear and said housing, means accessible from outside of said housing for adjusting said governor shaft axially therein, centrifugally actuated means mounted on said governor shaft, a lever journaled in said housing for vertical swinging movement therein,y said lever having one arm operatively engaging said centrifugal actuated means and another arm having a trackway adapted to receive the roller on said fuel feed control member, a horizontal rock shaft journaled in saidhousing and having a crank disposed above the point of connection between said lever and said fuel feed control member, a coil tension spring, a support for the upper end of said coil tension spring pivotally suspended from said crank, and a support for the lower end of said tension spring having a connection with said second mentioned arm of said lever.

6. A speed governor for internal combustion engines including a horizontally reciprocable fuel feed control member with a roller rotatably secured thereto, said governor comprising a horizontal shaft adapted to operate in unison with said engine, a housing having an opening there- 'in for said shaft, a governor shaft mounted in said housing above and atan oblique angle to said rst'mentioned shaft, a bevel gear mounted in said housing and having an axially slidable but nonrotatable connection with said first mentioned shaft, a bevel said governor shaft intermeshing with and driven by said first mentioned bevel gear, a thrust washer interposed between said first mentioned gear and said housing, means accessiblefrom outside of said housing for adjusting axially therein, centrifugally actuated means mounted on said governor shaft, a lever journaled in said housing for vertical swinging movement therein,- said lever having one arm operatively engaging said centrifugal actuated means and another arm having a trackwayadapted to receive the roller on said fuel feed control member, a horizontal rock shaft journaled in said housing and having a crank disposed above the point of connection between said lever and said fuel feed control member, an operating lever on said rock shaft exteriorly of said housing, a coil tension spring, a support for the upper end of said coil tension spring pivotally suspended from said crank, a support for the lower end of said tension spring having a Islot-a'nd-pin,connection with said second mentioned arm of said lever, a coil compression spring mounted in said housing above said first mentioned arm of said lever and adapted to yieldably resist movement imparted to said lever by said centrifugal means when said tension spring is substantially fully contracted, and means accessible from the outside of said housing for adjusting said compression spring.

4r1. A speed governor for internal combustion engines including a -horizontally reciprocable fuel feed control member, said governor comprising a shaft adapted to operate in unison with said engine, a thrust sleeve slidable axially on said shaft, means for varying thrust sleeve, centrifugally actuated means mounted on said shaft and adapted to shift said thrust sleeve axially the shaft increases, a thrust bearing carried by said thrust sleeve, a lever fulcrumed on a horizontal axis and having one arm operatively engaging said thrust sleeve and another adapted to be operatively connected to said fuel control member, a rock shaft disposed with its axis parallel to the pivotal axis `of said lever and having a gear on the lower end of said governor shaft the effective length of said thereof when the speed of radially extending arm, a tension spring, va support for the one end of said tension spring suspended from said radial arm, and a support for the other end of saidv spring having a pivotal connection with said second mentioned arm of said lever l 8. A speed governor for internal combustion engines-including a horizontal reciprocable fuel feed control member, said governor comprising a shaft adapted to operate in unison with said engine, a thrust sleeve slidable axially on said shaft, means for varying the effective length of said thrust sleeve, centrifugally actuated means mounted on said shaft and adapted to shift said thrust sleeve axially thereof when the speed of the shaft increases, a thrust bearing carried by said thrust sleeve, a lever fulcrumed on a horizontal axis and having one arm operatively engaging said thrust sleeve and another adapted to be operatively connectedy to said fuel control member, a rock shaft disposed with its axis par-A allel to the pivotal axis of said lever and having a radially extending arm, a tension spring, a support for the one end of. said tension spring suspended from said radial arm, a support for the other end of said spring having a slot-andpin connection with said second mentioned arm of said lever, a lever secured to said rock shaft for operating the same, and adjustable stops for limiting the swinging movement of said lever.

9. A speed governor for internal combustion engines including a horizontal reciprocable fuel feed control member, said governor comprising a shaft adapted to operate in unison with said engine, said governor comprising a thrust sleeve slidable axially on said shaft, means for varying the eective length of said thrust sleeve, centrif- -ugally actuated means mounted -on said shaft a thrust bearing carried havingjone arm operatively engaging said thrust sleeve and another arm adapted to be operatively connected to said fuel control member, a rock shaft disposed with its axis parallel to the pivotal axis of said lever and having a crank portion, a tension spring, a support for the one end of said tensionspring pivotally connected to said crank, and a support having a pivotal connection with said second mentioned arm of said lever.

1l. A speed governor for internal combustion engines including a reciprocable fuel feed control member, said governor comprising a shaft l another arm adapted to be operatively connected and adapted to Shift said thrust sleeve axially,

thereof when the speed of the shaft increases,A a thrust bearing carried by said thrust sleeve, .a

lever fulcrumed on a horizontal axis and having one arm operatively engaging said thrust vsleeve and another adapted to be operatively connected to said fuel control member, airock shaft disposed with its axis parallel to the pivotal axis of said lever' vand having a radially extending arm, a tension-springs support for the one end of said tension spring suspended from said radial arm, a support for the other end of said spring Vhaving a slot-andpin connection with said second mentioned arm of said lever, a lever secured to said rock shaft for operatim the same, ad- Justable stops for limiting the swinging movement of said lever, and a compression spring cooperating with said iirst mentioned arm of said lever and adapted to yieldably resist the swinging movement imparted thereto by said thrust shaft adapted to operate j workingin lubricant vto said fuel vcontrol member, a rock shaft disposed with its axis parallel to the pivotal axis of said lever and having a crank portion, a tension spring, a support for the one end of said tension spring pivotally connected to said crank, a support forthe other end of said spring havingA a pivotal connection with said second mentioned arm of said lever, a lever secured to said rock shaft for operating the same, and a compression spring cooperating with said first mentioned arm lto said lever and adapted to yieldably resist the swinging movement imparted thereto by said thrust bearing when said tension spring is substantially fully contracted.

12. A speed governor for internal combustion engines including a movable fuel feed control member, said governor comprising a horizontal in unison with said engine, a housing having an opening adapted to receive said shaftfa governor shaft mounted in said housing above and at an angle to said first mentioned shaft, a gearmounted in said housing and ing a connectionwith said first mentioned shaft,-

7 and driven by said .first bearing when said tension spring is substantially fulw contracted.

10. A speed governor for internal combustion engines including a reciprocable fuel feed control member, said governor comprising a shaft adapted to operate in vunison'with said-engine,

va thrust sleeve slidable axially on said shaft, centrifugally actuated means mounted on said shaft and adapted'to shift said thrust sleeve axially thereof when the speed of the shaft inpreases, a thrust bearing carried by said thrust sleeve, means for varying the en'ective length of said thrust sle'eve comprising a sleeve nut ythreaded on one end: of said thrust sleeve and a lock sleeve having slidable but nonrotaryconnections with said thrust sleeve and said sleeve nut, a lever fulcrumed on a horizontal axis and a gear on said-governor shaft intermeahing with bearings mounted in said housing for supporting said governor shaft adjacent to the upper and lower ends thereof, centrifugally actuated means mounted on said shaft, a lever journaled in saidv housing for vertical swinging movement therein, said lever having one arm operatively engaging said centrifugal actuated means and another arm adapted to be operatively connected tosaid fuel feed control member, a horizontal rock shaft Journaledin said housing and having a crank disposed abovev the point of connection between' said lever and said fuel feed control member, and a coil tension spring having one end sustained by said crank and its other end connected to said vsecond mentioned arm of said lever, the bearing v for the lower end of said governor shaft being ing and an oil passageway between said lower bearing and the lower end of said axial bore, whereby the oil received by said bearing is delivn Y l.

for the other end of said spring sleeve nut threaded contained therein and havmentioned gear, roller ered by the pumping action thereof through said passageway and said axialbore to said upper bearing from which it is thrown into the upper portion of said housing.

13. A speed governor for internal combustion engines including a member, said governor comprising a horizontal shaft adapted to operate in unison with said engine, a housing having an opening for said shaft,

' a governor shaft mounted in said housing labove and 'an an angle to said first mentioned shaft, a

gear mounted in an `oil containing lower portion of said housing and meshing with and driven by said first mentioned movable fuel feed controll driven by said first nien` tioned shaft, a gear on said governor shaft inter-l gear, roller bearings mounted in said housing for supporting said governor shaft adjacent to the upper and lower ends thereof, centrifugally actuated means mounted on said shaft, -a lever journaled in said housing for vertical swinging move- .ment therein, said lever having one arm operatively engaging said centrifugal actuated means and another arm adapted to beoperatively connected to said fuel feed control member, a horizontal rock shaft journaled in said housing and having a crank disposed above the point of connection between said lever and said fuel feed control member, a coil tension spring suspended from said crank and pivotally connected at its lower end to said second mentioned arm of said lever,

' the bearing for the lower end of said governor position to receive oil shaft being disposed in thrown from said gears, said governor shaft having an axial oil passageway extending therethrough to said upper bearing, oil impelling means associated with said lower bearing, and a passageway leading from said oil impelling means to the lower end of said axial oil passageway.

said housing and having an axially slidable but nonrotatableconnection with said shaft coupling member,A a gear on. said governor shaft intermeshing with and driven by said first mentioned gear, centrifugally actuated means mounted on said governor shaft, a lever journaled in said hous'ingfor vertical swinging movement therein, said lever having one farm operatively engaging said centrifugal actuated means and another arm adapted to be operatively connected to said fuel feed control member, a horizontal rock shaft journaled in said housing and having a crank disposed above the point of connection between said lever and said fuel feed control member, and

a coil tension spring-'pivotally suspended from-l I said crank and havingia pivotal connectionwith said second mentioned arm of said lever.v

-15. A speed governor forinternal combustion engines including a horizontally reciprocable fuel feed control member having a roller journaled thereon, said governor comprising a'horizontal drive shaft' adapted to operate in unison with said engine, a governor shaft located above andat an oblique angle to said drive shaft, la driving yconnection between said drive shaft and the lower end of said governor shaft, centrifugally actuated means mounted on said governor shaft, a lever pivoted on a horizontal axis disposed above and tranversely of said governor shaft, said lever having a pair of. spaced arms disposed on one side of its axis and arranged for actuation by said centrifugal means when the -speed of said governor shaft increases, apair of spaced downwardly extending arms disposed on the other side of said axis, and a cross barrigidly connecting the -free ends of said last mentioned'arms and having A a downwardly opening trackway formed therein for the roller on said fuel feed control member, a manually operable `'rock shaft .disposed parallel to said .lever axis and having a crank disposed adjacent to said downwardly extending arms of said lever, and al coil t'ensio'n spring having its upper end anchored to said crank and its lower end anchored to said c oss bar adjacent to said trackway.

HERBERT C. EDWARDS.