US1675995A - Governor-controlled mechanism for internal-combustion engines - Google Patents

Description

Jul 3, 1928.

1,675,995 H. G. STEARNS GOVERNOR CONTROLLED MECHANISM FOR INTERNAL COMBUSTION ENGINES 2 Sheets-Sheet 1 Filed Feb. 19, 19.27

July 3, 1928.

H. G. 'STEARNS GOVERNOR CONTROLLED MECHANISM FOR INTERNAL COMBUSTION ENGINES Filed Feb. 19, 1927 2 Sheets-sheet 2 Inventor Q; S ZZQ 7778,

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Attornqy Patented July 3, 1928.

UNITED STATES PATENT OFFICE.

HENRY G. STEARNS, OF ARAPAHOE, NEBRASKA.

Application filed February 19, 1927. Serial No. 169,598.

The present invention relates to a governor controlled mechanism for internal combustion engines and has for its prime object to provide an exceedingly compact and convenient structure which is associated with a water pump and driven by fan belt and has a speed responsive device for controlling the throttle valve of the engine so as to regulate the speed thereof in accordance with the in load-thereon.

A still further important object of the invention lies in the provision of a structure of this nature which is exceedingly simple, thoroughly efficient and reliable in operation, comparatively inexpensive to manufacture and install, and otherwise well adapted to the purpose for which it is designed.

l fith the above and numerous other objects in view as will appear as the descripac tion proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing Figure 1 is a fragmentary side elevation of an internal combustion engine showing my improved mechanism associated therewith,

Fig. 2 is a top plan view thereof,

Fig. 3 is an enlarged detail transverse vertical section taken substantially on'the line 33 of Fig. 2,

Fig. ei is an enlarged detail elevation of the governor or speed responsive portion of the device.

Referring to the drawing in detail, it will be seen that the letter A denotes generallyan internal combustion engine of any preferred type. By way of example, the internal combustion engine herein illustrated is of the Ford type and comprises the usual engine block 5, the fan pulley 6, and the carburetor 7 upon-other usual conventional elements which it is not necessary to mention specifically herein. The numeral 8 denotes a water pump mechanism attachable by ring 9 and fastening elements 10 to the engine block 5 to be associated with the water jacket thereof in the usual well known manner. A bracket arm 11 extends integrally and forwardly from the ring 9 and is slightly bowed intermediate its ends as at 12 and formed with an abutment 13 at the center of the bowed portion on the convex side thereof to abut a portion of the engine block and then continues forwardly and terminates laterally and outwardly in a bearing sleeve 14:. A propeller shaft 15 is operatively connected with the pump mechanism 8 and extends forwardly therefrom being jourualed through the bearing sleeve 1st and having fixed to its forward end a pulley 1G for en gaging fan belt 17 that is trained over the belt pulley 6. A hose '18 is coupled as at 19 in any suitable manner with the pump mechanism 8 and extends downwardly and forwardly to the bottom of the radiator, not shown, in the usual well known manner. An elongated fiat-like bar 20 has its internuuliate por ion fixed to the casing of the mechanism 8 and fastening element 21 and the rear end thereof is curved outwardly and forwardly as at 22 while the forward end thereof is twisted at right angles and bifurcated at its terminal as is denoted at L8. Pivotally mounted as at 24- in the bifurcated end 23 is a lever 25. A collar 26 is mounted on the shaft 15 being held in different adjusted positions by set screws 27. A grooved collar 28 is loose on the shaft 15. Flat springs 29 are pivotally engaged as at 30 with the collar 26 and as at 31 with the collar 28. lVeight elements 32 are mounted intermediate the ends of the springs 29. A coil spring 33 is disposed about the shaft 15 to impinge against the collars 26 and 28. The collars 26 and 28 with springs 29 and the weight elements 32 form the speed responsive device. The lever 25 has one end in the form of a fork 35 the extremities of which have pins 36 extending into the groove of the groove collar 28. A spring 37 is engaged with a lug 38 projecting laterally from the bar 20 and is engaged with an intermediate portion of the lever-25 to normally hold it in the position shown clearly in Figure 2, that is, with the springs 27 substantially straight. A link section 88 is pivotally engaged as at 39 with the other end of the lever 25 and has a lateral eye extension 40 which receives the threaded end of a link section 41 which is held in different adjusted positions in relation to sec end of the bell crank lever 43 by a pin 48 piercing one of the apertures 46. This rod 47 is connected with the crank 49 of the throttle valve associated with the carbureter 7.

-When the device has been properly adjusted and the engine is in operationit will be seen that as the load lightens, the speedof the engine will tend to increase so that the weight elements 32, by centrifugal force,

7 will spread outwardly and thereby bow outwardly the springs 29 to shift the collar 28 rearwardly, rockthe lever and pull forwardly on the link 38, 41, and thereby rock the bell crank lever 43. The rocking of the bell crank lever 43 as just described will pull the rod 47 so that the crank 49 is turned to closethe throttle valve so that the engine will then slow down. The spring 33 will return the parts as will be quite apparent for opening the throttle as the speed decreases below the desired rate.

7 It is thought that the construction, operation, and advantages of this invention, will now be quite apparentto those skilled in this art without a more detailed description thereof. The present embodiment'of the invention has been disclosedin detail merely by way ofexample since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and in the above description. It willbe apparent that the changes in the details of construction, and in the combination and arrangement of parts ma be re sorted to without departing from tie spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages. Having thus described my invention, what I claim as new is r v 1 A device of the class described including awater pump mechanism, a bracket arm extending forwardly from the water pump mechanism and terminating in a bearing sleeve, a propeller shaft for the water pump mechanism journaled in the bearing sleeve, a belt engaging pulley on the shaft, a speed responsive means controlled by the shaft and associated therewith, a bar mounted intermediate its ends on the water pump mechanism and having its rear end curved outwardly and forwardly, a bell crank lever pivoted in the'extremity of the curved rear end of the bar, the forward. end of the bar being twisted and bifurcated, a lever pivoted Y in the bifurcated'end and controlled by the speed responsive means, a link structure between the two levers, and a rod associated with the bell crank lever for controlling a throttle valve.

2. A device of the class described including a water pump mechanism, a bracket arm extending forwardly from the water pump mechanism and terminating in a bearing sleeve, a propeller shaft for the water pump'mechanism journaled in the bearing sleeve, a belt engaging pulley on the shaft, a speed responsive means controlled by the shaft and associatedtherewith, a bar mounted intermediate its ends on the water pump mechanism andhaving itsrear end curved outwardly and forwardly, a bell crank lever pivoted in the extremity of the curved rear end of the bar, the forward end of the bar being twisted and bifurcated, a lever pivoted in the bifurcated end and controlled by the speed responsive means, a link structure between the two levers, and a rod associated with the bell crank lever for controlling a throttle valve, said link being adjustable.

3. A device of the class described including a water pump mechanism, a bracket arm extending forwardly from the water pump mechanism and terminating in a bearing sleeve, a propeller shaft for the water pump mechanism journaled in the bearing sleeve, a belt engaging'pulley on the shaft, a speed responsive means controlled by the shaft and associated therewith, a bar mounted-intermediateits ends on the water pump mech-. anism and having its rear end curved outwardly and forwardly, a bell crank lever pivoted in the extremity of the curved rear end of the bar, the forward end of the bar being twisted and bifurcated, a lever pivoted in the bifurcated end and controlled by the speed responsive means, a link structure between the two levers, a rod associated with the bell crank lever for controlling a throttle valve, said link being adjustable, a lug extending laterally from the bar, and-a spring engaged with the lug and with the second mentioned lever.

4. A device of the class described including a water pump mechanism, a bracket arm extending forwardly from the water pump mechanism and terminating in a. bearing sleeve, a propeller shaft for the water pump mechanismjournaled in the bearing sleeve, a belt engaging pulley on the shaft, a speed responsive means controlled by the shaft and asociated therewith, a bar mounted intermediate its ends on the water pump mechanism and having its rear end curved outwardly and forwardly,a bell 'crank lever pivoted in the extremity of the curved rear end of the bar, the forwardend of the bar being twisted and bifurcated, a lever pivoted in the bifurcated end and controlled by the speed responsive means, a link structure between'the two levers, a rod associated with the bell crank lever for controlling a throttle valve, said speed responsive means comtheir ends, and a coil spring on the shaft prising a collar on the shaft, a set screw impinging against the two collars, the secholding the collar in position on the shaft, 0nd collar being grooved and the second 10 a second collar loose on the shaft, a pluralmentioned lever having pins extending into ity of flat springs, means for pivoting the the groove thereof.

ends of the fiat springs to the collars, Weight In testimony whereof I affix my signature. elements on the fiat springs intermediate HENRY G, STEARNS.

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