US1608428A - Automatic power regulator - Google Patents

Description

Nov. 23 1926.

H. C. REESE AUTOMATIC POWER REGULATOR Filed March 17, 1926 )NVENTOR ATTORNEY WITNESS:

Patented Nov. 23, 1926.

UNITED STATES HENRY G. REESE, OF MOUNT PROSPECT, ILLINOIS.

AUTOMATIC PGVVER REGULATOR.

Application filed March 17, 1926.

This invention relates to certain novel improvements in automatic power regulators and has for its principal object the provision of an improved construction of this character which will be highly etlicient in use and economical in manufacture.

The present application constitutes an improvement over that disclosed in my former applications filed in the United States Patent Office bearing Serial Numbers 678,07t and 27,275.

Among the several objects of the'present invention is the production of a device of this character wherein there is provided a simple combination and arrangement of parts for operation by a governor, illustrated in my former applications, for effectively controlling the throttle valve of an internal combustion engine according to the load imposed upon the driving pulley of the governor.

A further object of the invention is the provision of a simple combination and arrangement of parts serving in their principal capacity to prevent sudden retroactive movement of the throttle valve control member and wherein the combination and arrangement of parts will coact to permit gradual retroactive movement of the throttle valve control member as the load of the driving pulley of the internal combustion engine is decreased, to close the throttle valve to permit the necessary charge of gas to the engine as is required when the engine runs by reason of the decreased load.

Other objects will appear hereinafter.

The invention consists in the combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings illustrating the preferred form of construction and in which:

Fig. 1 is a top plan view illustrating the application of the present invention.

Fig. 2 is a fragmentary elevatioual view of the same taken substantially on line 22 of Fig. 1.

Fig. 3 is a fragmentary sectional detail view of the same taken substantially on line 3 3 of Fig. 1. I

Fig. 4 is a fragmentary sectional detail e the serne taken substantially en "m n'tj Pig. 3:

Serial No. 95,392.

Fig. 5 is a fragmentary sectional view taken substantially on line 55 of Fig. 1.

Fig. 6 is a fragmentary sectional detail view taken at a point indicated at 66 of Fig. 1.

In describing the preferred form of construction, as illustrated in the drawing, only such parts as constitute the present invention will be indicated and for such parts as are included in the governor mechanism reference is to be had to my prior applications herein mentioned.

In this connection a governor is indicated at A and includes a driving pulley 10 mounted upon a shaft 11 to which is associated a slidable collar 12 at one end as indicated at 18, Fig. 1. The opposite end portion 14 of the shaft 11, Fig. 1, carries a Worm gear 15 adapted for meshing relation with a gear 16, as best illustrated in Fig. 2. The germ-r16 is operatively carried by a shaft 17, Fig. 2, having fixed thereon for rotation therewith a worm gear 18 meshing with a gear 19 carried by and for rotation with a shaft 20. The shaft 20 is supported for rotation by a bearing block 21 in turn supported by a bracket 22. Fig. 1, carried by the frame work 23 of the governor mechanism. This shaft 20 carries a ratchet wheel 24: adapted for engagement with opposite pawls 25 and 25 pivotallv carried as at 26 by arms 27 mountedfor free pivotal movement about the shaft 20, as illustrated in Fig. 2. The pawl 25' is normally held in engagement with the ratchet wheel 24 by reason of gravity, said pawl being provided with an enlarged extended portion 28 normally disposed to one side of the pivot 26 to normally hold this pawl 25' in engagement with the ratchet wheel. The arms 27 are operatively connected to a connecting link 28 through the medium of link members 29. This connection-is accomplished through the medium of pin members 30 adapted for engagement in any one of the spaced holes 31 formed in a longitudinal direction in the connecting link 28 By the provision of these holes 31 it is manifest that the connection between the link members 29 and theconnecting link 80 can be expeditiously adjusted as required. "The connecting link 28 is connected at one end indicated at 32-, Fig. 2, to an operating rod 33 4 The opposite e d port""j35 first this so time L; opening 86, Fig. 6, formed in one end portion 37 of an arm 3? of a hell crank indicated at B. This end portion of the rod is threaded as at 38 to receive nut members 39 and mounted upon this end portion, on opposite sides of the end portion of the arm 37 are equalizing springs 40 the function of which will he hereinafter set forth.

The end portion 37 of the arm 37 is detachably secured to a throttle valve operating rod 41 through the mediinn of spaced pin members 42 carried by this operating rot. The end portion ll of this throttle valve operating rod has formed. therein a plurality of spaced. openings 45/) any one of which is adapted to receive thepins 433 to permit adjustment of theend portion 3?" of the arm 37 in a direction along the length of the end portion 4L1 of the throttle valve operating rod 41. v

Referring now particularly to Fig. 1 or the drawingsthere is illustrated a support ing sh lf 453 carried by and fixed to the frame work 23 of the governor mechanism; To this supporting shelf is pivotally connected the hell crank B which comprises the arms 3'? and. 45. The other arm 45 of the hell crank is operatively connected as at 46,

1, to the slidable collar 12 oii the governor mechanism. This arm 45 as well as the arm 37 is pivotally connected to the supporting; shelf 523 through themedium of the pintle 4'7. This arm 45 is fixedly secured to an extension 48 through the medium of rivets- 4:9. This extension extends longitudinally of the end portion 51 of the arm 3? and substantially at right angles with respect to the arm This eiitension inchides upturned flanges 52. Fig. 3. having openings 53 formed. therein siidahly receiving bearing; collars 5- These bearing collars 54. are Carried by the slide rods having. end portions 56 operatively con-- nected to an extension 5? formed as an integral part of the arm S? which extension is disposed between the upturned flanges 52 as best illustrated in These slide rods are threaded as at 58, Fig. 3, to receive set nuts 59; The set nuts 59 and the bearing collars have formed thereon collars 60 adapted to receive cushioning springs 61 mounted between the bearing: col

liirs 54c and set nuts 59 upon the slide rods 55.

The forward end portion 690i the arm 37", Fig: 5, has secured thereto an angle member 63 having an opening G l formed therein sl'idahly receiving a supporting holt 65 threaded asat 66 to receive. a c repression nut 67. Mounted uponthis supporting iolt is a compression spring 6S"disposedhetween the compression nut 67 and a trip arm 69 adapted for engagement with an operating linger 70. illustrated in Fig. 1. Thisop crating finger 70 is formed as integral partoi an lndicating plate 71 rotatahly supported by a bracket T2 carried by the supporting frame "2'3 secured-to the supporting shelf 43. i This indicating plate 71 further includes a, stop arm 73' the function of which will be hereinafter set forth.

hen the arm 37 is moved in the direction indicated by the arrow in Fig. 1 of the drawing the end portion 37 ot' the arm is adapted for engagement with an indicating finger 7% slidably working in a slot 75 iiorn'led in a platememher Win This plate inemher T6 carried by a supporting); frame best illustrated in Fig. l of the drawings. Formed along a lonpitudinal edge portion 77 of the plate 4:6 me graduation marks '28 coacting with the indicator finger 'i l to indicate thehorse power of the operation of the internal combustion engine.

Having thus described the preferred form of construction of my invention h will now proceed to describe in detail the operation oiithe same.

From the description herein it ismanitest that my invention relates primarilyto the construction of the hell crank B in its operative association with the mechanisu'r for controlling retroactive moven'ientof? the throttle valve control rod in a d'ire cti'on to close the throttle valve, (not shown includec as a part ofthe internal combustion engine with which my invention is associated. I have not describednoriliustrated a throttle valvefor the reason thatit is apparent to those skilled in t'heart that any approved and known ake oi throttle" valve can he operatively associated with the control rod. 41. The bell cranlr operable through the medium oi the collar 12 which is slidahly lOUHiKCl for movement in opposite longitudinal directions with respect to the shalt 11, tl'irough the mediuin oi the governor mechanism A; which governor mechanism is preferably of a construction descrihed in my co-pending applications herein n'ientioned'.

Atv this time I wish to callattent-ion to the fact thaswhile I have indicated that the governor mechanism operates in substantially the same manner andis prci erahlyof a construction as disclosed in my copending applications. it is manifest that the con struction of the governor 1nechanisni may he of any well known and 'upproved type wliich includes a collar12' movable in opposite directions longitudinally with respect to the shaft 11 for operating the hel nlt B. It is, therefore, pointed out that the ronstruction of the governor mechanism has not been 'illustrated in the drawing of this application nor described: in the specification thereof for the reason thatfithe' governor mechanism is not ineludedas a part of the present invention. I

Vl hcn this collar 12 is moved in an out ward direction from the pulley 10 it, acts till medium of the spring members 61 and their associated parts to pivot the arm 37 about the pintle 47 to cause this arm 37 to act upon the operating rod 41 to move in the direction indicated by the arrow in Fig. 1 of the drawing to open the throttle valve (not shown). This movement of the collar 12 in said outward direction takes place when the load is applied to the pulley to cause the pulley 10 to operate the governor mechanism A as will be clearly understood by reference to my co-pending applications.

I have found by experience that when the collar 12 is suddenly moved longitudinally of the shaft 14 in the direction indicated by the arrow in Fig. 1, that the throttle valve is suddenly closed and thereby excessively diminishes the supply of fuel to the engine whereby the engine will be either stopped or inadequately supplied with fuel for the purpose to which it is subjected. It is therefore one ofthe main objects of the invention to prevent this sudden closing of the throttle valve and this is accomplished through the medium of the operating rod 33 and its a sociated parts in the following manner.

lVhen the control rod 41 moves'in the direction indicated by the arrow in Fig l the control rod 33 moves simultaneously in the same direct-ion and urges the arms 27 carrying the pawls 25 and 25 to pivot about the shaft in the direction indicated by the arrows in Fig. 2 of the drawings.

hen the collar 12 is moved longitudinally of the shaft 11 in the direction indicated by the arrow in Fig. 1 of the drawing the arm 45 acts upon the arm 37 to pivot this arm 37 about the pintle 47 in an opposite direction to that herein referred to. When this arm pivots in said opposite direction it acts upon the control rod 41 to move this rod in an opposite direction to that indicated to close the throttle valve (not shown). The operating rod 33 being connected through the medium of the end port-ion 37 of the arm 37 to the control rod 41 for simultaneous movement prevents sudden movement of the control rod 41 in an opposite direction through the action of the bell crank B and through the medium of pawls 2-5 and and their associated parts including the connecting link 28. As the ratchet wheel 24 is fixed to the shaft 20 for rotation therewith it is manifest that the pawls 25 and 25 being in engagement with the peripheral edge of this ratchet wheel will permit the arms 27 to pivot about the shaft 20 in unison with the rotation of the ratchet wheel 24. It will be thus seen that the time it takes for the control rod 41 to return to the position illustrated in Fig. 1 of the drawing will depend upon the speed of rotation of the shaft 20 which is operatively connected to the shaft 15 through the medium of the gear 16 and its associated parts to rotate at a less number of R. P. M. than the R. P. M. of the gear 15 and shaft 14, as best illustrated in Figs. 1 and 2 of the drawing.

During operationof the end portion 37 of the arm 37 on the control rod 41 to move this control rod in opposite longitudinal directions it will be apparent that the spring members 40 provide yieldable connection between the end portion 37 and the operatinc; rod 33 whereby this operating rod 33 will be relieved of undue strains otherwise transmitted thereto by operation of the arm 37 of the bell crank B.

From experience I have found that it is not necessary to control the control rod 41 forslow or gradual movement in the direction indicated by the arrow in Fig. 1 for the reason that the outward movement of the collar 12 from the pulley 10 is controlled by the application'of the load onthe pulley 10 and when there is a sudden increase in load upon the pulley 10 I have found that the supply of fuel to the internal combustion engine must likewise be suddenly increased to supply fuel to the internal combustion engine commensurate with the application of the load upon the pulley 10. i

As the arm 37 is moved in a direction to close the throttle valve (notshown) the trip finger 69 is brought into engagement with the finger 70 and rotates the indicating plate 71. On observing this indicating plate and seeing the indicating plate moved from the position originally occupied by the arm 70 as'shown in Fig. 1, the operator of the machine will at once be aware of the fact that the load on the pulley 10 is greater than the engine will withstand and he thereby can govern the amount of load to be imposed upon the pulley 10. As the armreturns to the position illustrated in Fig. 1 the trip finger 69 engages the arm 73 and rotates the indicating plate 71 to its original position illustrated in Fig. 1 thereby conveying to the operator that the engine is not excessively loaded.

As this arm 37 moves in the direction indicated by the arrow in Fig. 1 the end portion 37 thereof is brought into engagement with the indicating finger 74 and moves this finger along the indicating plate 76 in the slot 74. The extreme movement of this arm will place the indicating finger at a point whereby uponobservation of the graduations formed inthe indicating plate 76 one can determine the amount of horse power under which the engine is operating.

From the description herein and with reference to the accompanying drawings, it is obvious that I provide a simple combination and arrangement of parts for governing the 10 loo iii)

opening and closing of a throttle valve of an internal combustion engine according to the load imposed upon the driving pulley of the engine.

Vhile I have shown and described the preferred form of my invention it is to be understood that various changes and alterations may be carried out in manufacture without departing from the spirit of the invention or the scope of the appended claims.

The invention having been set forth, what I claim as new and useful is:

1. In a device of the classdescribed, the combination with a shaft, a slidable member mounted on the shaft for movement in opposite longitudinal directions with respect to the shaft, and a throttle valve ope'ating member, of a supporting shelf, an arm having operative connection at one end portion to the throttle valve operating member, an arm having operative connection at one end to the slidable member and extending substantially at right angles with respect to the first mentioned arms, means providing pivotal connection between the arms and the supporting shelf, and yieldable means functioning as a shock absorber for saidfirst mentioned arm; and providing? operative connection between said second men.- tioned arm and said first mentioned arm.

2. In a device ofthe class described, the combination with a shaft, a member associated with the shaft for movement in opposite longitudinal directions with respect to the shaft, and a throttle valve operating member, of two arms disposed substantially at right angles with respect to each other andpivotally connected to a supporting'element and defining a bell cranleone of said arms being opcratively connected to the member associated with the shaft and the other arm being operatively connected to the operating member, means providing said pivotal connection between the arms and the supporting element, and means providing yieldable connections between said arms.

3; In a device of the class described, the combination with a supporting element, a shaft, a collar associated with the shaft for movement in opposite longitudinal directions withrespect to the shaft, and a. throttle valve operating member, oftwo arms disposed substantially at right angles with respect to each other defining a bell crank, one of said arms having one end portion operatively connected to the throttle valve operating i'nei'nher and an opposite end POT-t tion dcfinining an extension, the other arm having an end portionoperativelv connected to the collar and deliningat the opposite end portion an extension disposed substantially at right angles with respect to said other arm. and in substantially parallel relation with respect to the extension defined said oneotthe arms, meansnooaees yieldable connection between the. extension ef saidone of the arms and the extension of said other arm.

l. In a device of the class deseribeihthe con'ibination with a slidable member and athrottle valve operating rod, of rotatable means supporting the member for slidable movement, a bell crank having. operative connection withthe slidable member and. the throttle valve operating rod adaptedupon moven'ient of the slidable member in one direction to impart movement to the throttle valve operating rod in a certain direc-. tion, a ratchet wheehineans operatively con necting the ratchet wheel to the rotatable means, and meansoperable uponthe ratchet wheel and operatively. connected to. the bell crank for gradually permitting retroactive movementof the throttle valve operating rol uponoperationof said slidable member in an opposite direction. i l V 5. Ina device of the class described, the combination with a slidable member and a throttle valve operating rod, of rotatable means supporting the member for-slidable movement, a bell crank having operative connection with the slidable member and the throttle valve operating rod adapted upon n'ioven'ient of the slidablemember in one direction 'to impart movement to the throttle valve operating rod in a certain direction, said bellcrank ineludingarms disposed substantially at right angles with 'respectto each other-,and means yieldably connecting the arms together, a ratchet wheel, means operatively connecting the r; tchet wheel to the rotatable 'means, and

means operable upon the ratchet wheel and operatively connected to the bellcranlrfor gradually pernntting retroactive movement of the throttle valve operat ng rodupon operation of said slidable member in an opposite direction. i i

6. In a device of the class described, the combination with. a slidable member and a throttle valve operating rod, an army operatively connected to the slidable member, an extension on said arm includingupturned flanges, an arm pivotally associated with the first mentioned arm andincluding an end portion disposed betweenlthe flanges,

cushioning members carr ed by the flanges and operative upon the end portion of said second mentioned arm, connectionbetween 'd 'econd mentioned arm and said throttle valveoperating rod. to move said operatiiig rod in a certain direction upon moven'ientof the slidable member in one direc tion, means controlling retroactive movemeet of the operating rod upon movement of the slidable member in an opposite direction, and means providing a connection between said controlling means and said second mentioned arnn 1 .111 a device ofthe class clescribed,;thp

combination with a slidable member and a throttle valve operating rod, an arm operatively connected to the slidable member, an extension on said arm including upturned flanges, an arm pivotally associated with the first mentioned arm and including an end portion disposed between the flanges, cushioning members carried by the flanges and operative upon the end portion of said second mentioned arm, a connection between said second mentioned arm and said throttle valve operating rod to move said operat ing rod in a certain direction upon movement of the slidable member in one direction, means controlling retroactive movement of the operating rod upon movement of the slidable member in an opposite direction, and a yieldable connection between said controlling means and said second mentioned arm.

8. In a device of the class described, the combination with a slidable member, a throttle valve operating rod, an operating shaft carrying the slidable member, an arm operatively connected to the slidable memher, an extension on said arm including upturned flanges, an arm pivotally associated with the first mentioned arm and including an end portion disposed between the flanges, cushioning members carried by the flanges and operative upon the end portion of said second mentioned arm, a connection between said second mentioned arm and said throttle valve operating rod to move said operating rod in a certain direction upon movement of the slidable member in one direction, means controlling retroactive movement of the operating rod upon movement of the slidable member in an opposite direction, said means including a 1'0- tatable ratchet wheel carried by the operating shaft, opposite pawls adapted for engagement with the ratchet wheel, and means operatively connecting the pawls to the second mentioned arm.

9. In a device of the class described, the combination with a slidable member and a throttle valve operating rod, of rotatable means supporting the member for slidable movement, means operatively connecting the slidable member to the rod and adapted upon movement of the member in one direction to impart movement to the rod in a certain direction, and means operable upon an element of the rotatable means and having operative connection with said second mentioned means for gradually permitting retroactive movement of the rod upon operation of said slidable member in an op posite direction.

10. In a device of the class described, the combination with a slidable member and a throttle valve operating rod, of rotatable means supporting the member tor slidable movement, a bell crank having operative connection with the slidable member and the rod and adapted upon movement of the slidable member in one direction to impart movement to the rod in a certain direction,

and means operable upon an element of said rotatable means and operatively connectcd to the bell crank for gradually permitting retroactive movement of the rod upon operation of said slidable member in an opposite direction.

11. In a device of the class described, the combination with a slidable member and a throttle valve operating rod, of rotatable means supporting the member for slidable movement, means providing operative connection between the slidable member and the rod and adapted upon movement of the member in one direction to impart movement to the rod in a certain direction, a ratchet wheel, means opcratively connecting the ratchet wheel to the rotatable means, and means operable upon the ratchet wheel and operatively connected to said second mentioned means for gradually permitting retroactive movement of the rod upon op eration of said slidable member in an opp0-.

site direction.

in testimony whereot I affix my signaturej HENRY C. REESE.

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