US2174309A

US2174309A - Centrifugal governor

Info

Publication number: US2174309A
Application number: US141736A
Authority: US
Inventors: William B Thiemann
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-05-10
Filing date: 1937-05-10
Publication date: 1939-09-26
Anticipated expiration: 1956-09-26

Description

Sept. 26, 1939. w. B. THIEMANN ,30

CENTRIFUGAL GOVERNOR Filed May 10, 1957 Patented Sept. 26, 1939 UNITE STA'i'Efi PATENT FFIE 4 Claims.

It is the object of my invention to provide an improved centrifugal governor which may be easily and quickly attached to any one of a number of different makes of automobile engines,

without the installation of complicated supporting brackets.

A further object of my invention is to provide a governor of the type above described, so constructed that it may be applied to either side of an engine and adapted to make connections with the throttle valve of the carburetor supported either forwardly or rearwardly of the governor.

A further object of my invention is to provide a governor having means whereby the governor may be manually controlled and set to cause the engine to which the governor is attached to be operated at any one of a number of predetermined speeds.

A further object of my invention is to provide gimproved means for lubricating the working parts of the governor and for enclosing the working parts to protect them from dust and foreign matters.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawing, in which:

Figure 1 is a side elevation of my improved governor, a portion of the operating levers being broken away.

Figure 2 is a vertical longitudinal sectional view of the same.

Figure 3 is a detail sectional view taken on the line 3-3 of Figure 2.

Figure 4 is a detail sectional view taken on the line 44 of Figure 2.

Figure 5 is a detail sectional view taken on the line 55 of Figure 2.

Figure 6 is an end elevation of the governor showing one of the brackets for supporting the same.

Figure 7 is a diagrammatical view showing the manner in which the governor is applied to a 45 segmental portion of an engine.

In the drawing I have used the reference numeral If! to indicate the governor casing, which is preferably formed of a short section of a tube, the ends of the tube being closed by end members i l 50 and l2, said end members being provided with centrally and outwardly extending flange portions to form hubs It for supporting ball bearings 14,

said hubs having caps it for retaining packing l6 adjacent to the ends of the ball bearings l4.

Rotatably mounted longitudinally and centrally through the casing iii and within the bearings 14 and through the caps l5 1 have provided a tubular shaft i'l, said tubular shaft having diametrically opposite longitudinally extending slots l8. Supported on the shaft ll is a sleeve or bracket [5 5 having laterally projecting lugs 25 arranged in pairs, each pair of lugs being provided with a governor arm l pivotally supported therein by means of pivots 22, the inner ends of the arms 2! extending through the slots It in the manner illustrated 10 in Figure 2, the outer ends of the arms being provided with arcuate portions 23 to form suitable weights for the governor,

Slidably mounted in the tubular shaft I1 is a short shaft 24 having its outer end resting against 15 the inner ends of the arms 2 I. Supported on the shaft H is a'sleeve 25 having an outwardly extending flange 25 on its outer end, the sleeve 25 being provided with a bolt 27 extending through the slots [8 and the shaft 25 so that the sleeve and said shaft may be moved longitudinally of the shaft il in unison.

Rototably mounted on the sleeve 25 is a collar 28 having laterally projecting and diametrically opposite pins 29. A collar 3!! is provided on the 25 inner end of the sleeve 25 and fixed thereto. Ball bearings 3! are supported between the collar 28 and the collars 26 and 39, the collar 28 providing means for moving the sleeve 25 and the shaft 2d longitudinally in the manner hereinafter de- 30 scribed. A spring 32 is also supported by the shaft 1 I, having one end resting against the sleeve 25 and its opposite end against a pin 33 projecting through the slots l8, and a shaft 34 also slidably mounted within the shaft 11. 35

slidably mounted in one end of the shaft H is a shaft 35 having its inner end near the outer end of the shaft 3d, said ends being separated by means of a ball 35. The outer end of the shaft 35 is provided with a slot 31! for receiving the lower 40 end of an operating lever 38, the lever 38 being mounted between links 39 by means of a pivot 30. The links 39 are pivotally connected to the upper end of a clamp device 5! mounted around the hub cap of the member I2, the clamp 4| being tightened on the said hub cap by means of a bolt 42. By thisarrangement the clamp 4| may be adjusted to various positions circumferentially of the said cap so that the lever 38 may be supported to extend either upwardly or downwardly or at any desired inclination to said vertical positions to 'meet the operating conditions encountered when installing the governor on an automobile engine.

By the arrangement above described it will be seen that if the upper end of the lever 38 is moved in a clockwise direction as illustrated in Figure the shaft 35 will be moved inwardly, which in turn will move the shaft 34 inwardly against the tension of the spring 32, causing the sleeve 25 to be moved inwardly against the inner ends of the arms 2i, causing the weights 23 to be moved inwardly and against the shaft I I. The device is then in its normal condition when not operating. It will readily be seen that the speed at which the weights 23 will be thrown outwardly may be varied by simply changing the position of the lever 38. The upper end of the said lever 38 may be connected to a hand-operated lever 43 carried at any convenient point on the engine to which the governor is attached, wherein the tension of the spring 32 may be varied at the will of the operator.

Supported transversely through the lower side of the casing I0 is a pair of bearing members 44 which are welded in place and adapted to support a rock shaft 45, having each end screwthreaded and its central portion provided with a yoke 46 fixed thereto, the outer end of the yoke 46 being provided with slots 41 for receiving the pins 29 of the collar 28. Either end of the shaft 45 may be provided with an upwardly extending lever 48, to which a link 49 is connected for operating the throttle arm 50 of the carburetor 5|. It will readily be seen that if the shaft I1 is rotated, then the weights 23 will be thrown outwardly, causing the shaft 24 to be moved longitudinally, and with it the sleeve 25, which in turn will cause the shaft 45 to be rocked and the lever 48 actuated, thus providing means for automatically controlling the throttle valve of the carburetor 5|.

The shaft I1 is provided with a pulley wheel 52 for receiving the fan belt of the engine, thus providing power for the rotation of the governor.

The casing I0 is mounted to the engine by means of

brackets

53 and 54, said brackets being clamped around said casing and fixed to the engine by any suitable means and to any convenient points thereon, said brackets being so shaped as to be connected to bolts or studs already form ing a part of the engine construction, so as to eliminate the necessity of having to drill additional holes for receiving the supporting studs, the particular means for securing the brackets to the engine forming no part of the present invention due to the fact that this varies with the different types of engines to which the governor is connected.

From the foregoing it will be seen that the governor casing may be supported on either side of the engine to a point near the carburetor to be controlled. This is quite important due to the fact that in some makes of engines the carburetor is supported on the right-hand side, while in other makes the carburetor is supported on the left-hand side. The lever 48 is fixed to the shaft 45 by means of suitable lock nuts 55 and may be supported from either end of the shaft 45 and may be extended upwardly or downwardly or at any other desired angle, thus providing a governor which may be easily and quickly attached to any one of a number of different types of engines without altering the construction of the governor. A pin 56 is provided for limiting the inward movement of the shaft 24 and the outward movement of the weights 23.

The casing 10 may be partially filled with a lubricant, such as oil, for lubricating the bearings supported therein, the pin 33 being purposely made long to provide means for agitating the oil within the casing as the shaft is rotated. Oil will then be thrown over the various bearings. One end of the tubular shaft I1 is left open so as to provide a breather for the governor. I find that this is necessary in order to prevent the oil from being forced outwardly through the bearings as the opening through the said shaft permits any pressure within the casing to be relieved due to the expansion of the oil as it is being agitated, and due to temperature variations.

Thus it will be seen I have provided a governor of simple, durable and comparatively cheap construction which may be properly lubricated, and provided with a sufficient number of ball bearings so that the governor will operate a long while without any attention by the operator after it has been installed. The end members H and I2 and the caps I5 are formed of pressed steel and pressed into position under pressure so that the said end members and caps are fixed against working loose by vibration, and at the same time are so arranged that the said end members and caps may be removed, if so desired, for repair or replacement by placing the casing in a suitable clamp and applying suitable jacks for removing the same by pressure. This also provides means to prevent inexperienced operators from tampering with the mechanism within the governor.

I claim as my invention:

1. A governor comprising a tubular casing having end members closing the same, a bearing in each end, a tubular shaft mounted in said bearings and extending longitudinally through said casing, said tubular shaft having opposite and longitudinal slots, a centrifugal governor device carried by said shaft, including weight arms, the inner end of said arms projecting into said tubular shaft through said slots, a shaft slidably supported in said tubular shaft having one end engaging the inwardly extending ends of said weight arms, a sleeve slidably mounted on said tubular shaft, a pin connecting said sleeve and the last shaft, said pin extending through said slots, a second shaft slidably mounted in said tubular shaft, a pin carried by the second shaft and projecting through said slots, an expansion spring wound around said tubular shaft, having one end resting against said sleeve and the other against the last pin, a third shaft slidably mounted within one end of said tubular shaft, a ball between the adjacent ends of the second and third shafts, a hand-controlled lever pivoted to the outer end of the third shaft for adjusting the tension of said spring, a transverse shaft supported in said casing having its ends projecting outwardly therefrom, a yoke fixed to the transverse shaft, means operatively connecting said yoke to said sleeve, a speed control arm, and means for adjustably fixing said speed control arm to either end of said transverse shaft.

2. A governor comprising an adjustable mounted casing, a drive shaft, a centrifugal governor device driven by said shaft, a throttle control shaft having its ends projecting outwardly from said casing, means operatively connecting said governor device and said throttle control shaft, a throttle control arm, means for adjustably fixing said arm to either end of said throttle control shaft, a hand-controlled lever for controlling said governor, a pivot support for said lever, and means for adjusting said pivot support on said casing to permit the pivot support to be adjusted whereby the hand control lever may be supported in any desired working position.

3. A governor comprising a closed casing, a

bearing in each end, a tubular shaft mounted in said bearings and having opposite longitudinal slots, a centrifugal governor device mounted on said shaft including Weight arms, the free ends of said arms projecting into said slots, a shaft slidably supported in said tubular shaft having one end engaging the inwardly extending end of said weight arms, second and third shafts slidably mounted in said tubular shaft, a ball 0 between the second and third shafts, yieldable means between the first and second shafts, hand operated means for adjusting the operating position of said third shaft to vary the tension of said 5 spring, a throttle actuating arm, and means for operatively connecting said arm to the first slidable shaft.

4. A governor, comprising an adjustably mounted casing, a drive shaft, a centrifugal governor device driven by said shaft, a throttle controlling arm, means for operatively connecting said arm to the governor device when the casing is in one of a number of its adjusted positions of movement, a hand-operated lever for controlling said governor, a pivot support for said lever on said casing, and means for adjusting said pivot support on said casing to permit the hand control lever to be supported in any desired position relative to said casing.

WILLIAM B. TI-IIEMANN.