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VeröffentlichungsnummerUS2823555 A
PublikationstypErteilung
Veröffentlichungsdatum18. Febr. 1958
Eingetragen27. Apr. 1955
Prioritätsdatum27. Apr. 1955
VeröffentlichungsnummerUS 2823555 A, US 2823555A, US-A-2823555, US2823555 A, US2823555A
ErfinderCasimer J Cislo
Ursprünglich BevollmächtigterGen Motors Corp
Zitat exportierenBiBTeX, EndNote, RefMan
Externe Links: USPTO, USPTO-Zuordnung, Espacenet
Combined controls for carburetor and transmission throttle valves
US 2823555 A
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v Feb. 18, 1958 c, J c o COMBINED CONTROLS FOR CARBURETOR AND TRANSMISSION THROTTLE VALVES Filed April 27, 1955 INVENTOR ewwwzcz ATTORNEY United States Patent COMBINED CONTROLS FOR CARBURETORAND TR N M S TT E VA VE Casimer 1.. :Cislo, Detroit, :Mich., assignor to General M rs Corp r t on, D roit, iMic -r a corpo at n of Delaware Application April 2-1, 1955, Serial 'N0.- 504,286 13 a ms- -4 'Thistinyention relates'to combined controlscforgcarburotor and; transmission throttle valves.

In; the operation of,motorzvehicles:having automatic transmission for transmitting torque fromrthe engine to the-roadwheels, itihasi becomecommon practice. to inde i h hy a lic. controls for such itransmissionga swelle throt l valve. This .valvei aetsto regulate .pressure in accordance with the-position or openingof .the b r o h ott v lve. Consequently, whenythe V carburetor throttle; valve is in its substantiallvclosedpositiondnringt'dling, it is cl esirable thatthe. pressure regulated by the transmission throttle valve ,shall be at. its minimum and, likewise, when the carburetor; throttl'evalve is in substantiallywide open position the pressure regulated by;the;transmiss ion throttle valve is at its maximum. It s l o ommon pred ca -p ovide arra g ment wheretea n and po by the; transmission can -be :forcibly (lOWIlSl'liftGd-gfIOHl a hi h reedratimw a lowe sp e r io-and euchdownshiftingiis often accomplished by -move nent of,.the :aeceleratoror otherpedaLconnected to the carburetor throttleavalve yo arpes t n inwhichrwid onen a bu o ott a e -tes abl shedsllQ wQ lliiml dmovement o th c e erator pe a is for the n rp eof impa in additional movement to the transmission; -throttle valve fo .ee a n c nt o p poses ithou changing; the-rear,- buretor throttle valve position.

An object-of the presentinvention is ltowprovideza; com.- bined control for carburetor and transmission th ottle valves which control :is of the utmost simplicity,lut, Zing a mi m o h m a d which can beinstalledhand servicedzwith the least expenditur of labor andgenergy.

Anotherobjectof the inventionisto providea control e h o g ng ,eh ra e wh chran be operated -:by:: an aceelerato peda su h fa hi n as o ins r toperation of he transm ss on -t tl al n accordanc with opera ion of th aa bu et hr ttl al e, but :withva v. t si le f h pera i n o h tr m ssion th ottle e l? ;t .-ti1; .u et0 h ttle valve has easheda pr dete mi ed .n s tion- Anat e zobiec of th n nt n s t r oride al entrel 9f th rf9 ee in ln t li WhiQ zll 1 $ml o w p ates p tal y joi d toget er w on of he p ate in urn connectedto therota-table shaft of the carburetor throttle valve so that rotation of the two plates in compelled unison over-r a predetermined rangewill causeproportionate movement of the two throttle valves.

A further object of the invention is to provide. two pla e e a i t et e ab on p vo point. and with one of the plates connected for rotation about an-, other axis, and further with resilient means normally compelling movement of the two plates-in unison, whereby initialtrotation of one of the plates will cause the two' plates tobe rotated about, the. same axis but further rotation of one ofthe platesswill be about the axisof connec= tion'between thetwoplates.

A still further object of theinvention is to provide a control as before described in which resilient ineansbe- 2,823,555 '"Pa ttentedi "Feb. '18, I958 F CQ :tween thetwo platesicompelsrthe plates to rotate in unison within predetermined limits but permits additional rotation .ofone. of the plates relative to theother.

,lncarryingqoutthe foregoing and other objects of the invention, an internals-combustion engine for a vehicle iseprovided with the ;usual carburetor having a throttle valve therein. ,Ihezshaftxon which such throttle valve @rotates; extendsrbeyoncl' tthe carburetor housing and has "scouted-theretmaffirst.plateihaving a flat portion joined to-ta tsecondiflattportionz by a right angular integral extension. The firstifiat-portion also has an outwardly extending tongueqpontion,otxgreaterlength than the in- .tfitfiaL-exmnsibn: of thislplate. Pivotally secured to --the spewed:flat:partzofithefirshplatezis alsecond plate having (one ;..edge:t-hereof; cut. QntJto .receive the tongue of the oth plate; and having a depending finger serving tometain 1a: snring-abetvreen-the upper edge of the cut out part of the second plateand the tongue extending from ;the;fi r st-, plate. 'Thevsecond plateihas. secured thereto an actuating rod one'v end-10f whichiis connected to a crank and, lh OthQIfiDdi-Qf the tcrankis connected to an exte sion, or. arm, froinlz-a' foot-operatedaccelerator pedal ,monnted on theubulkhead of: the vehicle. The second gpl atealso has secured thereto a throttle valve rod which extends ;t;'o ;a, cran;k1-mounted on:.or in the transmission ed to: cause slidingmovement of a valve nomberwithincthe easing; he -two actuating-rods are sopivotallvzeonnectedlo the-.secondplate of the assembly that actuation or, depression of the -'accelerator pedal eauses roatijon:-9'f.:,the second orouterrnost' plate, which rotationi-rrtur-nds QQrnmuniTcated-through thespring first plate rotating the same about v ,k w unetor throttle-valve tO'CaUSe iI'Ot'ati-OD ofth tvalve. liotationtgof the'twowplatestunder the contr 1; of ;t;he ;ac:oeleratorpedalvcauses ,-a-.nroveinent of-the transmissi n hret l wal e vctmtrolred: in ,a directi'o e lli v i:ZI QKQIIJ .3H9 li Sil insmissiomthrottlesvalve;- :Coordinatedjmovement of the. twoxth-rottle valvesk continues until the rear hrottle valve has trreached a predetermined n a n; Fnrther movementrofs -flre acc le at r-red. ausesuehimovement of thecti t plate connee ed t to as .to compel it -:to -roitate about the axis; of onneetlon between; the; two vt-plates', which rotation .'i sperrni tted dry: the, spring connectionrbetween the two plates h' tort-her; movement of ;,one' of the plates-of the assembly- 113 83110 effect on the (carburetor throttle valve but does impart tothe transmission :throttle valve af hereof, whichrmovementican be: utilized or-- anstnission downshif't purposes orzfor any o h dedmdnnrnews p, u w s; ohje t @andvadvantages.ofltheinvert tionwill becomeapparent by reference to c-the ifOl'lOWiHg det iled de cripti n of th a semnanvi aw Where injiigureylds as A ew of part ofiau automotive engine having a transmission housjng a ttaehed thereto. and with he.that: 3 ;v o t nearest inv nt on incorfi therewith.-

nlareed: fQWiQ th annua p a s. illusa .-t qet -substa al1y=o :a eline 373 :Ref r -n its h t rawine and-oar i ul rlv o igure -1. 10 -i di.cat e enarallv r-na eonrbustionzensin f r ehi les en in ha i .ttas hedn heretoe smg foraavt-ra-n ,sion to transmit torque from .the'enginei to.;;the troad wheels of*the=v.ehicle. *Supply .qfgfuel to the engine :is- =-c0ntrollecltv by a carburetor indicated generallyat 14 whichcarburetor may be of any: well known type employing a rotatable valve member. A well '-1 -"6 separatesatl'ie engine from the drivefis compartment-and this wall has I arranged :near "the bottom thereof a-nac celerator pedal 18 of well known type. Pedal 18 is pivoted about the axis indicated at 20 and has secured thereto a crank arm 22. Arm 22 has pivotally connected thereto a rod 24, the upper end of which is pivotally connected to the lower andshorter arm. 25 of a crank 26 pivotally mounted as at 28 on a supporting member 30 fastened in any suitable fashion to the wall 16. The

upper arm 32 of the crank has pivotally secured thereto h a rod 34 which extends to the carburetor 14.

Referring now particularly to Figures 2 and 3, a valve J-m-ember 36 of the carburetor 14 is shown as having a shaft 38 positioned substantially midway between the ends of the fiat valve member 36, the shaft 38 being pivotber 42 inclined as shown in Figure 2 and extending into another fiat plate-like part 44. The two plate parts 40 and 44 and the spacer 42 are preferably formed integrally and may be made by stamping or any other suitable process. The plate 40 also has extending therefrom a finger 46 of greater length than the spacer 42. Another plate 48 is pivotally secured to the plate part 44 by means of a stepped bolt 50 and retaining nut 52. A part of plate 48 is cut away to provide a ledge 54 on which the finger 46 of the plate 40 can rest. The u per edge of the cut away part of plate 48 has a depending tongue 56 serving to center a spring 58 positioned between the upper edge of the cut away part of plate 48 and the finger 46 of plate 40. Spring 58 therefore acts to force the finger 46 against the ledge 54.

The rod 34 previously mentioned has its end bent angularly as at 60, the bent part being pivotally mounted in the plate 48. As will be seen from the drawings. the end of rod 34 is positioned to lie between plates 40 and 42 with only the small bent part 60 extending through plate 48. Also pivotally mounted in plate 48 is a bent end part 62 of a further rod 64 which extends from plate 48 downwardly to one end 70 of a crank indicated generally at 72. The crank 72 has the arm part 70 thereof positioned outside the casing 12 of the transmission while the other arm 74 of the crank is positioned within the casing 12. It will be understood that the crank so pro vided by the part 70 and 74 is made possible by a pin 76 fastened to the two parts and being journalled in the wall of casing 12. The lower end of the crank arm 74 engages the outer end of a valve stem 80, a valve part of which slides in a valve body 82 within the casing of the transmission. Movement of stem 80 and its valve inwardly is for the purpose of regulating the pressure of fluid used for control purposes in connection with the transmission. Such a valve is commonly known to the art as a throttle valve for regulating pressure in accordance with the position of the carburetor throttle valve. It will be noted that the rod 64 is positioned on the opposite side of plate 48 from the rod 34 so that these rods can move in spaced lanes.

The control just described operates in the following manner. Assuming that the carburetor throttle member 36 is in the position illustrated such position corresponds to closed throttle position of the carburetor which position is that usually employed during engine idling. Should it be desired to accelerate the engine, the accelerator pedal 18 is moved toward the wall 16 by the operator's foot, which movement rotates the crank arm 22 imparting in turn rotation of the crank arm 25 by the rod 24. Rotation of crank arm 25 causes rotation of the upper arm 32 which is a longer arm. The latter rotation in turn is communicated by rod 34 to the plate 48. Since the two plates are normally compelled to rotate in unison by the spring 58, it follows that movement of rod 34 to the left as viewed in the drawings, causes rotation of plate 48 and also a plate 40 in a clockwise .4 direction about the axis defined by the shaft 38. Such clockwise rotation of these two plates in unison causes rotary movement of the end 62 of rod 64 which motion causes rotation of the crank arm about the axis of the rod 76. This latter rotation is accompanied by a rotation of the interior arm 74 about the same axis with a consequent movement of the valve stem 80 to the left.

Movement of the accelerator pedal 18 to cause increased feed of fuel to the engine can continue until the carburetor throttle valve member 36 has reached its wide open throttle position which is determined by a stop (not shown) in the conventional manner. When such final or wide open carburetor throttle position has been-reached, plate 40 is restrained against further clockwise rotation. However, at this time the pedal 18 can move still further toward the wall 16 and such further movement will cause a clockwise rotation of the plate 48 only about the axis defined by the secondary pivotal point of member 50. This added clockwise rotation of plate 48 has no effect on the carburetor throttle valve but does continue movement of the rod 64 which movement in turn is imparted to the valve stem 80 causing movement of this stem 80 still further to the left. Such additional movement of the valve stem is desirable for exercising a control of the transmission, such as a kick-down or forced downshift from a high speed ratio to a lower speed ratio.

It will be observed that the plate 48 which is moved directly as a result of accelerator pedal movement can rotate about two axes, the primary axis being that defined by the shaft 38 and the secondary axis being defined by the pivotal connection member 50. Thus, during the entire stage of carburetor throttle valve movement, plate 48 rotates about the primary axis in unison with the plate 40 and the parts attached thereto. During the final stage of pedal movement, the plate 48 rotates solely about the secondary axis which means that it rotates relative to the plate 40 and its attached parts. Such relative rotation of the two plates is permitted by compressing the spring 58. As soon as the pedal 18 is relieved of pressure, the first action will be expansion of spring 58 after which the two plates wil rotate in unison in counter-clockwise direction to cause a change in the positioning of the carburetor throttle valve. While the carburetor throttle valve is sensitive only to rotation of plate 40, the transmission throttle valve is sensitive to all movement of the plate 48.

Rotation of plate 48 relative to plate 40 about the axis of the member 50 is limited by contact of the tongue 56 ofplate 48 with the finger 46 of plate 40. Such limitation of relative rotation between the plates serves to some degree to limit the additional movement of the transmission throttle valve stem 80 after the carburetor throttle valve has moved to wide open position. However, the extent of movement of the transmission throttle valve depends principally upon the geometry involved in the linkage and in the relation between the primary and secondary axes of plate rotation. This geometry therefore can be varied to adapt the mechanism for a particular path of movement of the transmission throttle valve by changing the spacing and angularity between the two axes. It is to be understood therefore that the plate 48 can be connected to the plate 40 at any particular desired location of pivotal connection so that the over-travel of plate 48 relative to plate 40 will result in such movement of linkage 64' and parts associated therewith as will produce the desired travel of the transmission throttle valve after the carburetor throttle valve has reached wide open position.

From the foregoing it will be seen that the present invention provides a combined control for carburetor and.

bodiments is possible and hence any limitations tov be.

imposed-thereon are only those set forth in the following claims. w H p bers for compelling said members to rotate in unison about said first-axis under urging from said manually operated linkage, saidmembers being rotatable one rela- -tive to the other about said second axis within limits.

'2. A combined: control for carburetoraud transmission throttle valves comprising a first plate rotatable with and onthe axis of said'carburetor throttle valve, a second plate pivotally secured to said first plate on a different axis,

yieldable means between said plates for compelling said plates-to rotate in unison about said first axis, said plates being rotatable one relative to the other about said second axis within limits, manually operated linkage connected to saidsecond plate to cause rotation of said plates and said carburetor throttle valve in unison under the compulsion of said yieldable means, and linkage between said :second plate and said transmission throttle valve.

-3. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable with and onthe axis of said carburetor throttle valve, a second plate pivotally secured to said first plate on a different axis, yieldable means betwen said plates for compelling said plates to rotate in unison about said first axis, manually operated linkage connected to said second plate to cause rotation of said plates and said carburetor throttle valve from closed position to wide open position of said carburetor throttle valve, and linkage between said second plate and said transmission throttle valve to cause movement of said valves simultaneously, said second plate being rotatable on said different axis when said carburetor throttle valveis in wide open position to cause further movement of said transmission throttle valve.

4. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable with and-n theaxis of said carburetor throttle valve, a second plate pivotally secured to said first plate on a different axis, cooperating formations on said plates, said formations when engaged preventing rotation of one of said plates relative to the other in one direction, resilient means biasing said formations together, manually operated linkage connected to said second plate to cause rotation of said plates and said carburetor throttle valve in unison from closed position to wide open position of said carburetor throttle valve, and second linkage between said secondiplate and said transmission throttle valve, said second linkage causing movement of said transmission throttle valve simultaneously with said carburetor throttle valve, said second plate being rotatable about said different axis when said carburetor throttle valve is in wide open position to cause additional movement of said transmission throttle valve.

5. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable with and on the axis of said carburetor throttle valve, a second plate pivotally secured to said first plate on a different axis, cooperating formations on said plates, said formations limiting rotation of one of said plates relative to the other, resilient means biasing said two of formations together, manually operated linkage connected to said second plate to cause rotation of said plates and said carburetor throttle valve in unison from closed position to wide open position of said carburetor throttle valve, and second linkage between said second plate and said transmission throttle vlave, said second linkage causing movement of said transmission throttle valve simultaneously with said carburetor throttle valve, said second plate being rotatable about said different axis against the resistance of said resilient means when said carburetor throttlevalve is in wideopen position to cause additional --with said finger to limit rotation of one of said plates relative to the-other, "resilient means biasing said finger a ainst one of said formations, manuall o erated linkage connected to said second plate to cause rotation of said plates and said carburetorthrottle valve in unison from closed position *to'wideopen position of said carburetor throttle val-ve, an d second linkage between said second plate and said transmission'throttle valve, said second linkage causing movement of said transmission throttle valve simultaneously with said carburetor throttle valve, said-second plate being rotatable about said different axis when said carburetor throttle valve is in wide open position to cause additional movement of said transmission throttle valve.

7. A combined control for carburetor and transmissionthrottle valves comprising a-firstplate rotatable with and on the axis of said carburetor throttle valve, a second plate pivotally secured to said first plate on a different axis,-cooperating-formations on said plates, said formations limiting rotation of one of said plates relative to the other on said; different axis, spring means biasing said two of said formations, together, manually operated linka-ge connected to said second plate to move said second plate, saidspring-meanscausing said plates and said carburetor throttle valve to rotate in unison from closed positionto wide open position of said carburetor throttle val-ve,-and second linkage ,betweensaidsecond plate and saidtransmission throttle valve, said second linkage causing movement of said transmissionthrottle valve simultaneously with said carburetorthrottle valve, said second plate being rotatable about said different axis against said spring means when said carburetor throttle valve is in wide open position to cause additional movement of said transmission throttle valve.

8. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable with and on the axis of said carburetor throttle valve, a second plate pivotally secured to said first plateona different axis, yieldable means between said plates for compelling said plates to rotate in unison about said first axis, said plates being rotatableone relative to the other about said different axis within limits, manually operated first linkage connected to said second plate to cause rotation of said plates and said carburetor throttle valve in unison under the compulsion of said yieldable means, and second linkage between said second plate and said transmission throttle valve, said axes being so spaced and angularly disposed that said relative rotation of said plates causes predetermined movement of said second linkage and said transmission throttle valve.

9. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable with and on the axis of said carburetor throttle valve, a second plate pivotally secured to said first plate on a different axis, yieldable means between said plates for compelling said plates to rotate in unison about said first axis, manually operated linkage connected to said second plate to cause rotation of said plates and said carburetor throttle valve from closed position to wide open position of said carburetor throttle valve, and linkage between said second plate and said transmission throttle valve to cause movement of said valves simultaneously, said second plate being rotatable relative to said first plate on said different axis when said carburetor throttle valve is in wide open position to cause further movement of said transmission throttle valve, said axes being -so spaced and angularly disposed that said relative rotation of said plates causes predetermined movement of said second linkage and said transmission throttle valve.

10. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable with and on the axis of said carburetor throttle valve, a second plate pivotally secured to said first plate on a ditferent axis, cooperating formations on said plates, said formations when engaged preventing rotation of one of said plates relative to the other in one direction, resilient means biasing said formations together, manually operated linkage connected to said second plate to cause rotation of said plates and said carburetor throttle valve in unison from closed position to wide open position of said carburetor throttle valve, and second linkage between said second plate and said transmission throttle valve, said second linkage causing movement of said transmission throttle valve simultaneously with said carburetor throttle valve,

said second plate being rotatable relative to said first plate about said different axis when said carburetor throttle valve is in wide open position to cause additional movement of said transmission throttle valve, said axes being so spaced and angularly disposed that said relative rotation of said plates causes predetermined movement of said second linkage and said transmission throttle valve.

11. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable with and on the axis of said carburetor throttle valve, 2. second plate pivotally secured to said first plate on a difierent axis, cooperating formations on said plates, said formations limiting rotation of one of said plates relative to the other, resilient means biasing said two of formations together, manually operated linkage connected to said second plate to cause rotation of said plates and said carburetor throttle valve in unison from closed position to wide open position of said carburetor throttle valve, and second linkage between said second plate and said transmission throttle valve, said second linkage causing movement of said transmission throttle valve simultaneously with said carburetor throttle valve, said second plate being rotatable relative to said first plate about said different axis against the resistance of said resilient means when said carburetor throttle valve is in wide open position to cause additional movement of said transmission throttle valve, said axes being so spaced and angularly disposed that said relative rotation of said plates causes predetermined movement of said second linkage and said transmission throttle valve.

12. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable 8 with and on the axis of said carburetor throttle valve, a second, plate pivotally secured to said first plate on a different axis, a finger extending from said first plate, spaced formations on said second plate, said formations cooperating with said finger to limit rotation of one of said plates relative to the other, resilient means biasing .said finger against one of said formations, manually operated linkage connected to said second plate to cause rotation of said plates and said carburetor throttle valve in unison from closed position to wide open position of said carburetor throttle valve, and second linkage between said second plate and said transmission throttle -valve, said second linkage causing movement of said transmission-throttle valve simultaneously with said carburetorthrottle valve, said second plate being rotatable relative to said first plate about said diiferent axis when said carburetor throttle valve is in wide open position to cause additional movement of said transmission throttle valve, said axes being so spaced and angularly disposed that said relative rotation of said plates causes predetermined movement of said second linkage and said transmission throttle valve.

13. A combined control for carburetor and transmission throttle valves comprising a first plate rotatable with and on the axis of said carburetor throttle valve, a second plate pivotally secured to said first plate on a different axis, cooperating formations on said plates, said formations limiting rotation of one of said plates relative to the other on said different axis, spring means biasing said two of said formations together, manually operated linkage connected to said second plate to move said second plate, said spring means causing said plates and said carburetor throttle-valve to rotate in unison from closed position to wide open positionof said carburetor throttle valve, and second linkage between said second plate and said transmisison throttle valve, said second linkage causing movement of said transmission throttle valve simultaneously with said carburetor throttle valve, said second plate being rotatable relative to said first plate about said different axis against said spring means when said carburetor throttle valve is in wide open position to cause additional movement of said transmission throttle valve, said axes being so spaced and angularly disposed that said relative rotation of said plates causes predetermined movementof said second linkage and said transmission throttle valve.

Reterences Cited in the file of this patent UNITED STATES PATENTS 2,348,435 Hey et al. May 9, 1944

Patentzitate
Zitiertes PatentEingetragen Veröffentlichungsdatum Antragsteller Titel
US2348435 *11. Juni 19419. Mai 1944Automatic Shifters IncCombined clutch control and gear shifting mechanism
Referenziert von
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US2977816 *8. Okt. 19594. Apr. 1961Bristol Siddeley Engines LtdAutomatic change-speed gearing
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US6463826 *3. Nov. 199715. Okt. 2002Randy BouchillonAutomobile transmission cable device
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Klassifizierungen
US-Klassifikation477/156, 74/471.00R, 74/470
UnternehmensklassifikationB60K41/08, B60K2741/04, B60K2741/08
Europäische KlassifikationB60K41/08