US1604936A - Speed regulator - Google Patents

Description

Oct. 26,1926. 1,604,936 I T. TABB ET AL- I SPEED REGULATOR Filed Nov. [25, 1921 2 sheets-sheaf. 2

A TTDRNEY 39 on line 2-2 in Figure 1.

Patented Oct. 26,192 66 UNITED STATES WARNER '1'. ram: Am) man s. ADLEB,

PAT T O F-ice.-

DUPLEX ENGINE GOVERNOR contrary, nm, or jsnooxnm,. YORK, A Go} roEarIoN or NEW Yonx,

' Application filed liovember This invention relates to an improvement.-

6 ,agent when the engine approaches or reaches a predetermined limitingspeed.

An object of this invention is to provide a speed regulatorthat can be conveniently lmgunted partly onithe exterior and partly on the interior of special types of engines, and connected to respond to variations in the speed thereof, without necessitating any material change in the construction of the engine or any extensive alteration or rearrangelfi ment of the parts of same.

A further object of this invention'is to provide a speed regulator which is easy to install, simple and inexpensive to manufacture, and at the same time practical and efficient in use.

Other objects (and advantages of this invention will appear from the following de-;

scription and. drawings, andthe novel fea-- tures of our improvement will be defined in 2 the a pended claims. But this disclosure of course sets forth only the, preferred embodiment of our speed-regulator, vandwe may.

resort .to variationsin the shape, size and arrangement of the parts, to the full extent indicated by the broad and general meanings of the terms in which the claims are expressed.

On the drawings Figure .1 isa viewshowing in operative position, a regulator according to 'ourmvention; ,with theadjacent portions of the engine'upon which it'is' disposed, ,in vertical section. 1

Figure 2 isa section taken substantially Figure 3 is a horizontal section of a memher. which houses the throttle valvelof our regulator.

Figure4 is in Figure 3 seen fromthe right.

Figure 5 is a 'frontfview of the member shown in Figure? in the position'whichit L occu ies when secured to .the engine .upo'r whic it is employed.

line 6-6 of Fig- Figure 6 is a section on Figure 7 is a;- view of the casting shownin Figure 3, seen ,from, abovet r Figure, 8 is a bottom plan of sand casting,

end view of the. parts shown.

SPEED nneunaron.

25,19'21. serialxo. 517,101.

presented as it appears when the casting shown in Figure 4'is looked atfrom the right, and 1., N

Figure 9 is a' section on the line 9-9 of F gure 3. 5 'j On the drawings, the s me numerals iden- .t1fy the same arts thro ghout. i In the detai ed description of the embodi mentof our speed regulator herewith set or 3300mm NEW Yonx, Assmnons 'ro for'th,'we use the numeral 1 to indicate a portion of the lower part of the framework of an engine, such as an internal combustion eng ne, for example; although the regulator may be used ugon a steam engine andv other motor as we 1. The frame ;work'o1*- body 1 may?) and" the part 2 above same will be that portion of theframe work or body which contains the power cylinders and the pistons. In the case'of an internal combustion engine there will be an intake conduit or manifold 3 for the fuel that is supplied to the engine to be ignited and burnt; and this manifold will be in connection with the usual carburetor not shown, through a pipe or conduit 4. In the practice of our inventlon we make an opening 5 in. the side of the part-2 of the frame work of the engine and secure over this opening a member, such as a casting 6, having a flange 7 which fits against the edges of the opening 5 and canbe held fast by bolts or screws. This caste the] crank case of the engine ing 6 has-a-bore 8 through same so that it can be inserted between the manifold 3 and 9, to be connected to a governor and be con trolled thereby; so as to throttle or shut off cond it 4 to eonnect'one-with the other the fuel or motive agent, normally fldwi'ng I through the pipe 4, the b0re-.8 inthe-casting 6 and the manifold 3; when the en ne approaches or reaches its. maximum a owable speed. a spring to'hold 'itin open position, but

when the .governoracts, the springs s oven position. The casting is on the of ""theengine and, theigo'vernor on the 1H.

being housed bythe parts 1 and 2 and conne'cted'to a movir gbpsart of the engme. t o be driven therebyfl governor is ind1cated in Figure 1 asembrncing a' rotatablecasm' 10 secured to 'a' shaft 1 1,'which 1s connects 's valve8 is under the influence of come and the valve moved towards- .elosed vanes on a member in the casing 10 and mounted therein so as to be free to turn with respect to same. This member (not shown) has a rigid shaft 12 that pro ects through the top of the casing 10 and carriesfixed to its outer end a grooved wheel 13.

This wheel 13 is joined by a flexible element, such as a cord 14, to a grooved member or segment 15, secured to the stem 16 of-the valve'. This stem is mounted in bearings in the casting 6 and extends'through the bore 8; and whenever the speed of the en'- g'ine rises sufliciently, the vanes on the inside of the casing 10v will act through the medium of the liquid in this casing to exert sulficient turning force or torque upon the shaft 12 to make the cord 14 pull the valve fully or partly shut; and thus prevent the safe speed of the engine from being exceeded.

Of course it is not material to this invention just how the shaft 11 is connected to the engine to be actuated or how the shaft 11 is supported to turn in the frame work 1.

- We also do not find it necessary to describe the partictular structure of the governor 10, as this governor may be of the same design as is disclosed in the application of-Valuer T.'Tabb, No. 450,261, for a patent on speed regulator, filed March 7th, 1921; and we may :use the same overnor, or a governor of a different type, if circumstances require.-

The parts 1 and 2 of the frame work of the engine may be in one piece or in two pieces as shown, and can be connected together by suitable bolts, one of which is indicated at 17.

The casting 6 may have any required .shape and.we illustrate same as being provided with-upper and lower flanges 18, to

, enable the casting to be bolted to the manifold 3 and conduit 4; the valve stem 16 passing through the casting across the bore 8 between these flanges;and the portion having the flanges and the-bore 8 may also have. a neck or extension 19 with the aforesaid flange 7 at its outer, extremity. This neck is hollow so that the cord'14 may pass freely from the wheel 13' through the openihg 5 into the neck to the segment 15. The casting is drilledrthrou-gh between-thg flanges as indicated at' 20 to receive the spindle 16 r of the valve 9; and the opposite extremities of the passage 20 may be counter-bored, as

indicated at 21, to receive hallsgbearings.

' spindle the balls mentioned may be enga The ball bearings maybe ofthe usual type 'gonsisting of a ring having 'a race-way for 'the balls therein; and at one end of. the

by the. hub of the segment 15, which is of course rigid with the spindle; and at-the other end of the spindle the balls may be engaged by axsleeve 22 made fast to same.

The segment 15 has a projection 23 to engage a stop 24 inside the casting 6. To the sleeve 22is fixed one end of a coiled'spiral and this projection may have at one or more points a bore 28 containing a spring pressed ball 29 to engage a circular groove 30 on the inside of the rim of the cap 26, to hold the cap in place. To remove the cap it is grasped by hand and given a pull to make the inside of the cap beyond the groove 30 force the ball inward. To prevent turning of the cap, and to hold the spring under tensionwhen the projection 23 strikes against the stop 24, and at all other times in the op eration of the speed regulator, we use an element 31 in the form, of a bent eyelet pin which passes through the side or rim of the cap 26 into a recess or bore in theboss 27, and is engaged by a stud or pin 32 passing through theopening in the outer end of the pin and made fast to the casting 6 being tightly drlven into a 'bore 33.- The opening in the projection 27 for the pin 31 is indicated at 34 and there is of course a corresponding perforation in the rim of the cap with the bore 34 in the projection 27, the pin- 31 can be replaced. Of course the cap cannotbe removed till the pin 31 is takenout. One side of the casting '6 is provided with an opening 35 to give access to the cord 14 and the segment 15; and the edges 36 of this opening afford a seat for a closure plate 37 which can he made, fast by means of a' screw stud 38 and. nut 39. The plate 37 may have an opening to receive the stud 38; the nut 39lbeing screwed over tlie outer end of the; stud to engage the plate, and a seal comprisinga wire loop 40 passed through a hole in the endof the stud, the ,ends of the flow freely up through the pipe 4 toltheloo being soldered or otherwise secured to-j" get er, may be employed "to prevent remgval of the nut and the. displacement of the" plate 37. At its opposite end the plate- -'37 may be-attached to the neck 19 by a rivet '41; the; openings for the rivet41 and the stud 38, which is driven tightly into a hole 9 ed in the casting 6, being indicated at 42 and 43. g

manifold 3 and into the power dylinders; butwhenever the speed of the en ine' reaches a certain point the governor W111 take effect upon the cord 14 to move the valve 9 against the force bf the spring to throttle the motive agent or to shut it off entirely.

ln order to secure more perfect realation and consumption of the fuel to the st advantage we may provide the casting 6 with a duct 44 which opensthrough side'of the casting to the exterior thereof, and is en-. largedand threaded at its outer extremity to receive a screw 45. This screw has a milled head and it is engaged .by a spring-pressed stud or stop 46 in a bore or recess 47 in the casting. The duct 44 communicates, with another duct 48 whiemgggsgnto the bore 8 about the level of the 9;, These two ducts are so located as to be horizontal when the casting'ti is attached to the frame work 2, 'and make a single continuous passage; and the-duct 44 will communicate with a duct 49 and aduct 50, (see Figure 9) both of which lead downward through the bottom of the casting (i/The duct 49 will be connected to a pipe or by-pass from the float chamber of the carburetor, and the duct 50 will communicate with the atmosphere and allow" more or less air to enter the 'duct 44 according to'the position of the screw '45.

' A third duct 51 is drilled in the casting up through the bottomthe'reof so that it intersects and communicates with the duct 48. This. duct 51 is enlarged below the. duct 48, as indicated at 52 in Figure 6, and the upper part of, this enlarged -ortion communicates through a duct 53 with the bore 8 below the bearings 20 of the valve 9'. The purpose of the enlarged portion 52 of the not 51 is to receive an automatically acting plunger which will obstruct the passage of air and gasoline through the duct 48 under certain conditions and thus enable the regulator to be provided with a fuel compensator when desired; The particular structure and mode of operation ofthis compensator does not need to be set forth in detail herein; because, outside of the recise i location of the ducts .44, 48, 49, 50 a 53; it

is not-.21 part of this invention; bein shown a and described in the co-pending application of lVarner T. Tabb, No. 491,319-fora'pat ent ona fuel compensator for governing devices, filed August 10th, 1921. The compensator prevents the motive a ent or fuel rom becoming'too lean whent e manually protect communicating with the passage.

. 5d The castin 6 has openings 54 for 'bolts ,to hold it ah the manifold 3 and conduit 4 I together, and for convenience in drilling the duct 48 there may be a hole 56. for them in the opposite sideof the castin to be' after;- ward closed by a stopper or p u when the v casting has been machined and 'sh'ed.

Having described our invention, what we believe to be new and desire to secure and State'sis: I

13A speed regulator comprising a member having a bore therethrough, a throttle I valve in said bore, the member beingalso provided with a passage extending from the exterior of said member to the iriside of said bore adjacent said valve, a duct intersecting said passage and adapted to receive an automatically acting plunger to open and close I the passage, another cl c t to, enablesaid passa e to'be connected to the carburetor, and a duct to connect said passage with the atmosphere, and an adjustable screw to control p said last-named duct.

'2. speed regulator engine and be driven thereby said engine having an opening in line wit said, governor, and" a member avin a hollow neck with a flange to be secured to the-edges of said opening, :the member hav' a 'bore therethrough, a 'valve in said bore, to be connected to the governor through said neck and said opening andbe controlled by the governor to throttle the motive ag'entfor the engine, an adjustable spring at one end of said member to act'upon the valve in opposition' t6 thefgovernor, and aclosureplate, at the other endof said member, said memher having a assage therethrough leading to the borea 'jacent said valve, and ducts In-; witness whereof, we.ha've signed our names to this specification this30th day of September 1921.

'WARNER T. TABB. HYMZAN e. ADLER.

by Letters Patent of the United 75 for an engine com- 90 jprising a governor to be mounted inside the

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