US1569503A

US1569503A - Governor

Info

Publication number: US1569503A
Application number: US502382A
Authority: US
Inventors: Samuel E Kurtz
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-09-22
Filing date: 1921-09-22
Publication date: 1926-01-12
Anticipated expiration: 1943-01-12

Description

Jan. 12 1926i GovERNoR- n Filedseptj 22, 1921 Vll l I Il @0V .M 5 H [P atented Jan. l2, .1926;

' UNI-'ren STATES .PATENT OFFICE.

SAMUEL E. KURTZ, or sAc crry, IOWA.` j

GOVERNOR..

` Application filed September 2.2, 1921,. Serial No; 502,382.y I

To all whom :it may concern.'

Be it known thatI, SAMUEL E. KURTZ, a citizen of the United' States, residing at Sac City, in the county of Sac and State of Iowa, have invented a certain new and use- 4ful Improvement in Governors, `ofwhich the following isa specification.

. This invention relates to improvements in governors, particularly adapted to `be used in connection with internal combustion engines for controlling the flow of power iuid to. the engine. One of the difficulties presented in the control of internal come `bustion engines is to secure a governor -which 'will automatically control the speed within narrow limits at variable loads, and which will be sensitive enough'v -for this purpose.

This invention has among other. objects to provide a governor which shallbe extremely sensitive to variations in load and speedv of the engine, therebyl securing a proper andV accurate control of the speed of space and which'can be easily and quickly the engine under these varying conditions between narrow limits, and' which shall at the same time occupy a comparatively small more fully set out in the following descrip-V trated in Fig. 1.- V

Fig. 3 is asectional view taken on' line 3-3`o.f Fig. 1;-

Fig. 4 is a sectional view` taken on line 4--4 of Fig. 2.

Fig. 5 is a section on the line ,5 5 of Fig.

,Fig 6 a view of the upper end `of the casing showing the device for holding thel valve open.

Like numerals referto like parts through- Q out the several igures.-

In the construction shown I provide a casing l open at the ends.A This casing is 5o. intake of the engine. A 'valve 2 is located adapted to' be inserted at some pointin the within the casing and is pivotally mounted in any desired manner, as by'being connec'ted tothe stem 3. The valve stem 3 is mounted in the casing so as to be free to rotate? eee eed prejeeting'beyeed. the

ing as illustrated, the1 projecting end projecting within the enclosing device 4. The valve is moved by the flowing gas so as to vary the opening through whichl the gas Hows, and some means is providedv for properly resisting this movementl of the valve.

As herein vshown I provide "a mainrei sisting device 5 which is illustrated as al spring and whichlisconnect'ed at one end to the valve stem vand at the. other end to a fixed device, such for example as the casing or enclosing device 4.

I' have found by actual use that a4 single resisting device of this vkind will not -give found that by adding an auxiliary opposing devicel 6` whichopposes the main resisting device 5 ,and properly adjusting these two .devices I can secure the control of the engine speed within exceedingly narrowlim- I have shown the auxiliary opposing,

its.

"mA i the ycontrol-between narrow limitswhich in" some cases 1s essential, andI I have further device 6 as also consisting of va coiled spring,

one end of which is connected with the valve stem, and the other end 6a with a fixed'part;

such as the venclosing devicef4. The

springs

5 and 6 are opposed to each other. The spring 5 opposes the movementof the valve 1n response to the iow of gas through the valve casing, andthe spring 6 opposes this spring5 and assists the flowing'gas in moving the valve. I have found that with Vthis construction the valve does not` act spas. modically, but is under perfect control, and

controls the speed of the engine vwithin the required narrow limits.

The

springs

5 and 6 may be connected with 'the valve stem inany desiredmanner. AI

have illustrated asimple manner of doing this which consists inA providing a sleeve-7 which is provided with the slots 8 and 9.-

Oneend of the spring 5 is sli ped into one of, these slots, and one endo the spring -6 into the other slot as illustrated, and the sleeve is then placed on the valve stem and a 'fastening screw. The spring 6 must` be .secured thereto in any desired manner as by weaker or be adjusted so'as'to have lessstrength than the spring 5. Vide simple l and :easy means for adjusting the two springs relatively. As herein shown the enclosing device 4 is rotatablyv mounted uponl a projection 8 on they valve casing.

.The

springs

5 and 6 are woundv around, in

opposite directions, the valve stem,and' 1tV will be seen that therefere when the I prefer to proclosing device 4 is rotated in one direction,l Vit will lweaken one spring and strengthen lthe other, and when rotated in the .other direction, the spring which was previously weakened will be strengthened, and the one previously strengthened, weakened.

In order to conveniently'move the enclosing device 4 and to also-hold it in any desired position I provide it with teeth 9. I also provide a ,controllingdevice which has teeth which vengage'the teetliJQ. The parts are arranged so that when the controlling springs maybe easily and 'quicldyrelativelyf adjusted to secure any adjustment desired,

3A0 which are held together by the seal 14 which device is rotated, the enclosing device 4 will also be-rotated.' The controlling device 10 may be mounted in a bearing .11 and may -be rotated by means of'a head 12. I prefer to have this controlling device a worm so that it will hold the enclosing device. 4 firmly in position without the necessity of an addi,

tional holding device. yIt will be seen that by means of this construction the two( and that they will then be held in this adjusted4 position. I prefer to. adjust the springs fproperly and then arrange them so that they cannot be tampered with.

For this purpose I provide some suitable sealing device. l ing device consists of a wire 13, the ends of will show Whenever thev device is tampered with. This wire may be arranged in any desired position and I have shown it as passing through the head 12 of the controlling device and a hole inthe bearing 11 and also L passingthrough a hole in theremovable cap 15 of the enclosing device 4.

' I have found that in some cases there is la tendency of the valve to be held closed by `the vacuum produced by the engine. In order therefore to make the device moresensitive I provide some suitable means for relieving this vacuum'. In the construction shown I provide means vfor admitting air into the passageway through which the gas flows through the engine on the side nearest the engine. Any suitable means for this purpose maybe used. I have shown a convenient arrangement which does away with valves and other mechanism'and which con-V sists in providingone or moreopenings 16l in the valve casing nearest the end which isnearest the engine.' These holes if made small do n ot letin anyiappreciable amount of air during the ordinary Working of the device butin case of an undue vacuum produced bythe closing of the v/alve, they willl y.let in a suflicient amount of air to relieve the vacuum and let the retracting or opposv f ing spring act to open the valve.

I prefer to place the opening or openings 16 so that when the valve is working in its normal manner these openings will be on the side of the valve farthest from the engine,

As-hereinl shown this seal but'whenthe valve,is closedior nearly closed these openings Will be on the sideoic the these o penings let in very little if any air, and what is let in is let in on the side of the valve away fromrthe vacuum producing device, that' is the engine, while in the second case sufficient air passes therethrough to relieve `the vacuum and permit the valve to properly open. By this construction it is not necessary to have a stop. because the springs can be so adjusted lrelatively as to have the valves stop in the right position.

valve nearest the engine. In the first 'case' woy A stop 17 can be provided if desired. I

also prefer to provide some means for hold,- ing the valve open in the event a spring o r springs'should break, so that the engine can be operated without removing the valve.

This result is secured by providing an opening in the lcasing and the valve stein, and a pin 18-passing through these holes so as to hold the valve open. The valve can thus be held open in the eventanything happens to the springs, or it may be held open for any other reason if it is desired' for any reason to holdit open. l

I claim: v 1. A governor for internal combustion engines comprising a casing, a valve stem pivoted in said casing, a valve in said casing and connected withsaid pivoted stem so as to be pivotally mounted in the casing and re- 1 sponsive tothe flow 'ofluid through the casing so as to change its position to .vary im the 'effective opening through the casing,

and a resisting device for resistingvthe ivotal movement of said valve dueto the uid flowing through the casing, and a-n auxiliary opposing device; for opposing theresisting' device.

2. Av governor for internal combustion engines comprising a casing, a valve stem pivoted in said casing, a valve in said casing and connected with said pivoted stem so` as to fbe pivotally mounted in the casing and responsive to'the flow of fluid through the casing so as to change its position to vary the 4effective opening vthrough thecasing, and` I a resisting device for resisting the pivotal movement of said valve 'due tothe fluid flowing through the casing, and an'auxiliary oppesingdevice for opposing the resisting `device, and means foi" varying relatively the power of the resisting device and the 'auX- casing so as to change its position to vary the effective opening through the casing a second casing, a spring iii said second casing connected with said valve stein so as torepivoted in said casing,

'with said. enclosing device land sist the pivotal` movement of the valve 'due tothe pressure of said iluid, and a second spring in said latter casing connected with vsaid valve stem andvacting in the opposite direction so as to oppose said lir'st mentioned spring. v

4. A governor for internal combustion engines comprising a casing, a .valve stem a valve in said casing and connected with saidpivoted stem so as to be pivotally mounted in the casing and"4 responsive tothe flow 'of fluid throughthe casing so as tochange its position to vary the effective opening through thecasing va second casing, a spring in said second casing connected with 'said valve stem so as tovre sist the pivotal movement of the valve due to the pressure of said fluid, and a second Spring in said latter casing connected with its. position to vvary the effective opening. f through the casin a valve`stem for said valve, a coiled spring connected with said valve stem, an enclosing device for said coiled spring, one end of the coiled spring beingconnected therewith, a second coiled spring `connected withsaid valve stem and acting in opposition to the first-*mentioned spring, and

means for movingsaid enclosing device to adjust the relative strength of saidsprings.

combustion.

6. A governor for internal projects, a spring within 1 and having one end connected with saidy engines comprising ay casing,

which said sections are connected androtatably mounted i'nposition, a second casofsaid valve stem said second casing ing into -which the endvalve stem and the other end connected with said second casing, said second casing rotatably mounted upon y the other casing and means for rotating saidv secondV casing, comprisingv a worm connected with one casa valve inl said f -casing having two sections at an angle to each other, one section having a greater eX- posed; area than the other, ajv'alve-stem to being 55 -ing and worm teeth connected with the' other v i casing. 4 'n o governor `for internal combustion engines comprising a casing, a movable.

valve in said casing adapted to be moved hy the power fluid passing through the casing so as to vary the opening through the casing, a resisting device for resisting the powerfluid, said casing and Jvalve adapted to be placedJ in the conduit leading .from the arburetor to -the engine, one or more openings in vsaid* casing for admitting air intel-that portion of the vpassageway, controlled bythe "valve when it is -substantially vmovement of said valve responsive to said closedbetween the valve ad the engine so as to relieve the.vacuum produced therein permitthe valve to properly open, said v andI opening or openings arranged Aso that when the valve. is of said opening or side of the valve louretor.d Si e at Sac ity, Statf Iowa, 1921.

county 'ofI Sac and, this 19th'day of September,

normally working the dischargeopenings will be'on 'the betweenA it and -the care.4

y SAMUEL E. KURTZ.'v w