US1168421A - Controlling means for internal-combustion engines. - Google Patents

Description

APPLICATION min FEB. 10, 1906 w M M1 g m 3 m M M. z a P forked end of which is jointed at (l to the laterally extending link 01*. The latter is pivoted at d upon the engine casing but has interior connections with a centrifugal governor, conventionally represented atd, the

fitter driven through appropriate gearing from the engine shaft, so that with changes in engine speed the link 11* is moved about its pivot, causing the throttle valve to he slid in one directionor the other upon its seat,

When the engine is at rest the governor weights draw the throttle valve to the full line position shown in Fig. 2. As soonas --the engine reaches normal speed, movement 'weights, as is usual, act against the restrainin effect of one or more springs.

n orderto render the acting of-the' governor adjustable at will during the operation as of the engine, thereby to alter the speed to which the governor tendsto regulate the some, the springs, or other yieldable elebe adjusted and preferably remains easilywithin the reach of the operator during the i 0- ments, against which the governor weights act,-are preferablyrendered manually adjustable. This adjustment, if desired, might take place at the governor itself, where the rincipal governor controlling springs are ocated, but preferably there is provided an additional yielding member, more accessibly located and against which the governor is forced to act,. at least during-periods of critical control,'. which spring member may running of the vehicle. I v p Referring to the drawings, there is provided the auxiliary actuating rod e, having a sliding fit in the rear wall of the mixing chamber the forward end ofv said rod being loosely mounted in the bodyof the piston valve and opposed to the end of the actii'ating rod d, butpreferably separated therefrom by a short space when the valve is in its extreme position to the right, as shown la,e the governor movement toan extent which is dependent upon the degree of spring compression. To render the latter readily adjustable by the operator, the collar is secured to a link 6 jointed to a horizontal arm 6, the latter fixedly scoured to the u'pper end of a short upright shaft e,

journaled in a, bracket 0*, to the lower end of which is secured the segmental bevel gear e. The latter meshes with a similar gear 0 upon the extreme lower end of the shaft rod 'e, which passes interiorly through the controlling post B f r its entire length and is provided at its extreme upper end. with an operating arm or. handle a. A segmental ratchet which is partly shown at 6 is.

fixed upon the end of the controlling post and with;this a spring-pressed tooth or pawl (not; shown, but of a common form) upon the end of the lever e engages, so

that the latter may be held in any position."

in which it is moved.

It will be evident that the spring eiimight be proportioned so as to cause the two rods to abut against each other in all positions of the valve, but I prefer so to construct'it that thespring is ineffective to force/the actuating-rod e beyond some such position loo turn with thes teering wheel and movement of the latter therefore has no effect on the throttle.

' A second hand lever f is connected to a sleeve f" within the controlling post, the,

latter h-a-iving'at its lower end the bevel gear f meshing with the segmental gear whereby the upright sleevef also journale in the bracket e -is turned, givin a fore .or' aft movement to the actuatin ever in Fig. 2. hen the engine starts, the valve moves to the left to partially close the port I) without opposition until the end of one rod abuts against the other, when further closing movement can take place, only through displacement of the auxiliary actuating rod e. The latter at'the rear of, and exterior to, the mixing chamber, has a collar 6 between which and the adjustable but rclatively fixedcollar 6 is a compression spring-e which therefore when compressed acts to oppose backward movement of the auxiliary actuating rod e. After the engine has started and the valveis moved to the dotted line position shown in Fig. 2, the

spring e may be made to oppose and reguwhich shifts the cam shaft (not s own) or varying the action of the ignition cams and advancing or retarding the time of ignition.

In addition to the governor control over the throttle described, there is also provided additional means for varying the fuel supply or maintaining an increased supply, irrespective of the engine speed, 'one practical advantage of such a device in connection with a motor vehicle engine being its action. as an accelerator temporarily to accelerate the engine speed when the speed afforded through the governor control is lower than desired. For this purpose the actuating rod 6 has slidably secured to its rear end the cap y which latter is connected to be moved forwardly or backwardly by the yoke-shaped lever g, pivoted at {7 and having the rearwardly and downwardly'inclined arm 9 The lever g is normally retracted by the spring 9" so as to bring the cap 91 against the abutment upon the controlling post, there being provided in this position of the cap a considerable clearance between the inner wall of the same and the end of the actuating rod so that the latter is free to be moved, without conflict with the cap, in one direction or the other the throttle valve responds to the control of the against the action of the governor and there maintained as long desired.

In operation the proper adjustment or the governor weights and springs provide regulations for any usual or suitable engine speed. If the operator wishes to increase this speed, either for the instant or for any length of time, he has merely to place the spring e under compression by turning the hand throttle lever a and by setting said lever to correspond to different degrees of compression of the spring, he can accelerate the action of the engine either slightly or to a very great extent.

lVhether the throttle is under the 'sole control of the governor or under the control of the governor acting in opposition to the spring 6*, foot pressure upon the accelerator rod g may be employed to force the throttle open and temporarily accelerate the speed and supersede the governor control.

While the compression spring 0* might be placed in other relations to the throttle and its governor, I prefer to place it upon some such part as the rod 0 between which and the throttle there is some degree of lost motion. Vhen the engine speeds up and the governor weights fly out, they tend to cause the throttle valve to overthrow its true posi tion. If there is a light compression placed upon the spring 6*, however, it tends to cushion the movement of the valve toward its close and prevent the overthrow lhereot'.

During the operation of the engine a r charged with the gaseous vapor is constantly available for the mixing chamber from the underlying carburetor in an amount 1)1O})Ol'- tioned to the demands of the engine. This mixture, however, ordinarily requires to be diluted with a further mixture of air. To permit this, there is provided means for automatically admitting to the mixing chamber a quantity of air proportioned to the re quirenients and running conditions of the engine. For this purpose there is provided an air admission chamber Z. in the casing" K, the latter secured to the top of the castingin which is forn'ied the mining chamber. there being free communication between the latter and the admission clian'iber Z: The top of the casino has a cap it" threaded therein and having a central opening which may be o by the plate valve F. the latter engagseat formed on the lower side of the The valve provided with a stem 7J3. Sirililbld in the hearing 7rd. which is carried by spider formed upon the cap. The valve ormally held to its seat by the spring 7.?" a ing against the washer which adlv secured to the valve spindle. (hi

do so oi pressure within the casing: l; the valve Z tends to open and admit the 110cc:-

sarv supply of air. maintaining such supply so long as is requisite. The amount oi? auxiliary air needed will be greater as the engine speed increases, but inasmuch as increase or decrease in engine speed is followed by increase or dew "rin the suction created by the engine p ,i ..i. this suction acting within the air a lmission cliamhcr Z upon the lower side the plate valve. will tend to position the latter according to the speed of the LllfJlIlO.

lv'hile l have shown and dcscrihed in detail one embodiment of my invention. it is to be understood that the same not limited to the details disclosed or the 'jilllll 1rvelativc arrangement of parts. or to the particular application of the invention herein set forth. hut that many modifications and departures therefrom may be made ithout deviating from the spirit oi the invention.

I claim I 1. An internal combustion engine having a fuel chamber, a throttle valve in said chamber, a controlling" member secured to said valve and passing through one end of said chamber, a speed governor connected with said controllin; membci, a second controlling memlicr operativcly related to said valve and pass. g through the opposite end of said cliamocr, an adjustable spring opcrativcly related to said sccond member and opposing the movement of said valve by said governor. and an accelerating device also operativelvrelated to said second member for temporarily controlling said valve t the exclusion oi said governor.

2. An internal combustion engine having a gas chamber, a piston throttle valvc slidahle in said chamber, a rod secured to one end oi said valve and through which the valve mav he moved to control the fuel supply to the engine, a governor connected to said ontrolling rod. a second rod operativel v related to said valve but extending through said chamber in the opposite direction, an adjustable spring for acting upon said secondfrod to cause the latter to oppose governor controlled movement of the' valve, and an acceleratoroperatively disconnected from said second rod but adapted to be moved at will to control the same and move the throttle to supersede the governor control thereof.

3. An internalcombustion engine having a. carbureter, a mixing chamber ad acent thereto, a piston throttle valve in said chamber, a rod connected to said valve to move the same and control-the fuel supply to the engine, a governor connected to said rod, an auxiliary actuating rod also operatively related fto said valve and extending in the opposite direction and-controlling means connected to said*auxiliary actuating rod temporarily to control the valve to the exclusion of the governor.

4. An internal combustion engine having a gas chamber, .a piston throttle valve slid ably mounted in the same,' a rod secured to said valve, a governor connected to said ually adjustable member.

rod to move the valve, and an auxiliary actuating rod between which and the valve .there is provision for relative movement,

said rod being adapted to. engage the valve when the latter is moved to throttle the mi ture.

An internal combustion engine having a carburetor, a mixing chamber adjacent thereto, a throttle valve in said chamber, a governor-controlled actuating rod connected to said throttle valve and passing out of one end of said mixing chamber, an auxiliary 'actuating rod 'opei'atively related to .said valve and passing through the op 0- site end of said chamber,-an adjusta le spring for acting upon said auxiliary rod to; cause the latter to oppose governor-controlled movement of the valve, and an accelerating device normally disconnected from the rod but adapted to be moved to control the same and supersede the'governor control of the throttle valve.

(L A regulating mechanism for an internal combustion engine comprising a throtvtle valve, :1 speed governor tor controlling the same, and means for changing the controlling adjustment of the governor, said means comprising an auxiliary spring, an arm connected to vary the adjustment of said spring. an upright sleeve member mounted to move said arm. a manually adgearing connection justable member, and I between said upright member and said man 7. An internal combustion engine having a fuel chamber, a piston throttle valve mounted to' control exit from said chamber. a controlling rod secured to one end of sa d valve, :1 speed governor connected to said ,'l0(l and an auxiliary controlling 'rod extending in the opposite direction,

said'auxiliary controlling rod being operatively deconnected to vary pendent connection to inseam tached from said valve when the engine at rest, but adapted to be moved to control said valve.

8. An internal throttle valve, a speed governor connectconibustion engine having ed to said throttle valve, an auxiliary controlling rod independently controlling said valve, a spring adapted to act upon said' rod in opposition to said governoiylmeans for tensioning said spring, and an accelerating member connected to said rod to move the same againstthe action of the govengage the controlling. member positively to' move the same temporarily to supersede the control of the governor.-

10. The combination With an internal 'combustion engine, of a throttle valve, :1

speed governor connected to move the same, means adapted yi'eldably to oppose the governor-actuated closing movement of the valve, and a connection providing for lost motion to permit closing movement of the I valve prior to the opposing action of the yielilable means.

11. The combination with an internal coinbustion' eng ne. of a throttle valve, :1 speed governor connected to move thesaine, and

an actuating member for moving the valve in opposition to the governor-actuated closing movement to supersede thelgovernor control; said actuating member having a. connection providing for lost motion to permit governor-actuated opening movement of the valve without movement of said actuating member. 12. A regulating device for an internal combustion engine comprising. a throttle valve, a speed governor for controlling the same,'and means for changing the control-' ling adjustment of the governor, said means comprising an auxiliary spring, a member spring. a inanually-adjustable.ine nber for moving said spring-,adpisting member and the adjustment of said a gearing between the manually adjustable member and the spring-adjusting member.-

13. The combination with an internal combustion engine of a throttle valve, a i

speed governor connected to the valve, a 'aive controlling member having an indemeans adapted to presssaid valve controlling member in opposition tothe governors actuated movement of the valve, means for the valve, yieldabled lOO "e ling the flow 0f gas fmm said ehamber,

$101 the valve is the exciusion e1 'ernor. e

15. regulamg mechamsm f ternal combustmn engine ceinprlsag member h regulating the pressure 05 saii means, and an accelerating memase to engage the controlling member to move the same temporarily t0 the control .01 the governon 14. An internal cembustien engine ing a gas chamber, a throt'tie v2.1" em gre? and controlling means seine-ate auxlhary actuating r941 temporal throttle valve, a s'peei goyerner far controlling the same, and means for the controlling adjustment of the govenser', said means comprising an auxiliary spring and a member connected to vary aim ment 0% said spring, said mem' ser ha motion conneetionwith said valve ting the latter to be opened by ea ernorinclependentb of the at ijustlzzem said member,

16. A regulating mechanism for e, speed gevemof let .6 we means I01 snap ing yieicliategv (levies, a

se -erse-ie Z eeteefiing M z'aviriing for wlthoiit moma 7 e2 me gevemer,

esponsive ogsen- 7 ,1 the pregame c'f

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