US1895328A - Automatic spabx contboi - Google Patents

Description

Jan. 24, 1933. V, L, HOWE 1,895,323

AUTOMATIC SPARK CONTROL FOR INTERNAL COMBUSTION ENGINES Filed May '27, 1931 a fr 1.1117111111 i f Z VIL Han/ Patented Jan. ,24, 1933 UNITED s'rA TES" PATENT. C14-FICE 'y vICTon Il. Hown, or i.aisRNnAnnv MICHIGAN AUTOMATIC SPARK CoNTnoI. ron INTERNAL CoMBUsTIoN ENGINES Y p Application led. May 27,

0 'may be' actuated by and as the result of'the actuation of the accelerator pedal connected.

to the throttle valve of the engine, to the end that the spark may -be automatically advanced when the' accelerator pedal is de-` pressed and automatically retarded when the accelerator pedal is released and thus permit the engine to be easily started and accelerated and insure the smooth operation of the en# gine under all speeds. 1

To attain the foregoing and other objects, the nature of which will appear as the description proceeds, the invention compie" lhends connecting the arm or lever of the ignition distributor to the Varm Athrottle valve.

The invention further comprehends the' connecting of the ignition distributor arm or' lever and theV throttle valve arm or lever in ,a manner to permit the throttle valve to be A'actuated in the direction of its fully opened position after the ignition distributor has been actuated to fully advance the spark and thusrenable the engine to be operatedat its VVmaximum speed which i operation thereof 35 "takes place only after the spark has beenr fully i advanced. A,

The invention consists in the construction, combination and arrangement of parts hereinafter described and claimed,and illustrated in the accompanying drawing, wherein Figure 1 is a view in side elevation illus` trating the applicationof the spark control i' means to the throttle valve and ignition distributor of anlinternal `combustion engine; Figure 2 is a4 view partly in horizontal sec-` tion and partly in top plan of the spark con` trol means, the ignition distributor and the intake manifold of the engine.

Figure. 3 is a view in side elevation of ay fragmentary portion of the spark control for one of its objects to or lever of the,

bracket'7`by a bolt 12. Y f

A link 13 is `pivotally Connected, as at :14, v

to o-ne 'of the arms ofthe lever 11, and `is pivotally connected, as at 15,`to aclamp ,16" engaged with the throttle valve armor leverH V1931. serial'nolmea Q Y `means and fragmentary portionsof the inrtake manifold and" carburetor, and

Figure 4 is a sectional view taken on the" plane indicated by the line 4"-4 of Figure 2.

Referring in detail to the drawing, 1 desig-V nates the carburetor, 2 the i ltake manifold,

thev throttle valvev shaft, and lthe ignition `distributor of an internal combustion-engine. j

5 designates the throttlevvalve arm or lever,`. k .i

and 6 the ignitionfdistributor arm or lever. AIn accordance with the present `,practice the throttle valve is under the control of a hand lever and an `accelerator pedal connected to the arm or lever 5, and the ignition distributor 4 is under the control of a hand lever connected to the arm or lever 6. As the throttle valve, hand lever and the accelerator pedal, together with the means for connecti' 'it is `deemed unnecessary to illustrate the same. Theignition distributor hand lever `is supplanted by my invention which comprehends connecting the arm or lever 6 to the arm or lever 5to the 'end that the ignition distributor 4 may beautomatically loperated Y to advance the spark as the accelerator lever is depressed and to automatically retard the spark as the accelerator lever isreleased and moves upwardly. i Y

` Themeans by which the `arms or levers 5 and 6 'areconnected comprises a bracket 7 'whichis secured to and extends upwardly from the coupling flange 8l of the intake 85,

vmanifold 2, `The bracket 7 is secured to the Acoupling flange 48 by one of the bolts 9 by which the coupling flange 10` of the carburetor bow lever 11 is pivotally Connected at*v the 'uncture of its arms to the upperend 'of the is secured to the coupling flange 8." 4An el- 5 at a point below the spherical bead of the latter. A rod 17 is pivotally'con'nected, as

, at 18, to the other arm ofthe lever 11, and'is connected to the armor lever 6 of the ignition carried byl the' tubular rod portionv lZa f Thebearing member 22 is screw threadedl `engaged with the tubularrod portion lgamto permit it to be adjusted longitudinally rwithzf respect to such rod portion, and it is secured in adjusted position by allockznutl24.1z.The

bearingmember 23 is slidably mounted in the tubular rod portion 17 a, and "is constantlyV urged in the direction of the bearing mem-k ber 22 by a compression spring :25 located` v within the tubularrod portion.

Y The bracket 2"V `s located rearwardlyof the 1 Y my vinvention obviates lthe manual control of the distributorI and the disadvantages inc i; ,dent thereto. 'The ignition distributor 4'may v-be adjustedto direct the tensioningof the-" throttle valve arm or lever 5, the Vlever-11 is pivoted to thefbracket at a point above .thej

arm or lever, and the clamp 16 extends rearwardly fromthe arm for lever 5, tothe end thatwhen vthe throttle' valve is moved in the direction of -its fully vopened positionf'the lever 11 will be A rocked in onedirction, and to vthe fend that when the.. throttlevalve is moved in the direction .of its fullyclosed position the levcrll will ybe rocked in the opposite direction; y

The rod 17 extends from the lever 11 to the" arm "or lever 6fo`f the ignition distributor 4, and imparts themove'ments of the lever 11 to thearm or lever 6, tothe end that the 2 ignition distributor will be actuated.l to ad-fvancethe spark as the throttle valveV is opened andfret'ard the spark as thethrottle valve is closed.A The spring 2 5 establishes aiyielding connection Vlietw'een Vthe' arm or lever 6' and the `rod '17,"and this; connection permits the rod to movevvith'respec't to the armA or lever after' the lignition distributorvv L has been aot'uatedito fullyadvance' the spark. The

spark 'will' Jbe"ful'ly^'advanced before the throttle valve has been moved into its fully 'y opened position and when the engine has attained the driving speed of approximately thirty'miles per hour; nectioii between the rod -17 4and the'ignition distributor arm or lever 6 vvilll'permit the connection with the accompanying drawing, ,v

it will be understood that,.astheignition distributor arm or levers is connected.I to

connected tothe arm or lever, Ithe Aignition distributor .4 is'under the\cont'rol of the pedalj-lever-.and willfconsequently be actu-v ated i automatically ,to'l` advance or retard the Y spark, fthe ignition f distributorV being, actuf atedto f advance the sparkwhen the..acceler.

The! yieldingVV con-I radapted to -yieldl 1 tributor arm.z

".iretarding'v position, with:` the; result that vthe engine/may be easilystarted or accelerated.

During the acceleration ofthe engine up to a:predetermined'speed, the ignition'distributor 4 will be, due toits connection with the.: throttle-valve, :actuated .to advance the spark, and the advancing of the spark will be 'in directproportion to the increase in speed of the engine, with the resultthat the., ,engine will performfeiciently undeiquick- ,A

or slow'acceleration.Y The :automaticf-con# 1; trolv of theignition distributor 4 providedby memberV 22.`I

which Inow consider fthepreferred einbodi- 4 tiony as claimed,

Whatis claimed ist* ignition distributori of .an internalcombus- 1. In combination, the ,throttle-valveandi.

Inentthereof, it is to be understoodithat theV a structure shown Vis merely illustrative .and` .thatfsuch' changes-maybe jmade,.-lwhen dc--w-V sired, as fallwithin' the scope. orf the inven-.f

l'lIlOLfJ tion-engine,andmeans connecting thedis-i tributorto the "valve: so that the distributor Y will be moved into-spark .retarding condire,

tion-uas-thevalve is closed and intofsp'ark:` advancing condition as the valve Vis opened,V .said VVmeans V:being: :yieldable when the dis-` .tributorzis in position to `:fully advane they.;V

sparkwhen the lvalve. is partly open so that*` the avalve may be fully opened. .5

throttle valve and ignition distributor, coin,l

2. Means for. connectingthe arms ,of aglflo" prisingz a pivoted lever,; a link connected to i i the E lever f and a adapted to 'be connected'y tot( 3. Means liorconneetingthe armsof the throttle valve-and ignition distributorfof,

a bracket adapted to besecuredto apart of the-.- engine,` :anx elbow leverI pivoted to the an .internal combustion engine, .comprising` bracket,` .a clamp-adaptedto be-securedto,...

the throttlevalve arm, al linkfconnected to,.-

the leverand clamp, a rod .connected to the..

Jever, Aand Vmeans vcarriedtherodl and gly connect itto thegdis- 4. Means for connectingthe arms .ofvthe g iso lthe; invention, together with the structure bracket adapted to be secured to a part of the engine, Van elbow lever pivoted to the bracket, a clamp adapted to be secured to the throttle valve arm, a link connected to the lever and clamp, a rod connected to the lever, said rod having a tubular portion, bearing members carried by said rod portion and adapted for connection With the ignition distributor arm, one of said bearing members being adjustably engaged with and the other slidably mounted in said arm portion, and a spring mounted in said arm portion and bearing against the slidable bearing member to constantly urge it in the direction of the other bearing member.

In testimony whereof I hereunto aiix my signature.

VICTOR L. HOWE.

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