US1325615A - Throttle-valve governor for motors - Google Patents

Description

57 JA 6 Y A. E. BEHDQN. y THROTTLE VALVE GOVERNOR FOR MQTORS. APPLICATION FILED NOV. I4. 191B.

1,325,615. Patented Dee. 23,1919.

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THROTTLE VALVE GOVERNOR FOR MOTORS.

APPLICATION FILED Nov. 14. 191s.

1,325,615. l Patented Deo. 23,1919.

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UNITED sTATEs PATENT oEEroE.

ALB-,ERT E. BERDON, or DETROIT, MICHIGAN.

THROTTLE-VALVE GOVERNOR FOR MOTORS.

Application led November 14. 1918. ASerialililo. 262.492.

To zZZ whom z't may concern:

Be it known that I, ALBERT E. BERDON, a citizen of the United States, residing at Detroit, in the countyY of Wayne and State of Michigan, have invented a certain new and useful Improvement in Throttle-Valve valve andiat the throttle valveopening to be operatively subject to the increasing velocity of the lluidat the throttle valve opening, and automatic mechanism, which is preferably a spring, for imparting opening movements to said valve upon decreasing yvelocity of the fluid at the throttle valve.

opening. I also preferably provide manual mechanism for controlling the valve.

In accordance with another feature of the invention I provide an abutment which limits the extent of the valve opening movement. Mechanism is desirably provided whereby this abutment may be manually adjusted to effect valve closing movement in o position to the spring, there being preferab y means whereby this mechanism may be coupled with-the valve to impart both opening and closing movements thereto.

I will explain my invention more fully by reference to the accompanying drawings. showing one embodiment thereof as applied l to an internal combustion hydro-carbon engine and in which drawings Figure 1 is a view mainly in longitudinal section illustrating the novel ortion of an engine equipment; Fig. 2 1s a sectional view on' line 2 2 of Fig. l; Fig. 3 is a view, somewhat diagrammatic, illustrating the carburetor and the intake manifold of an engine between which elements the novel por- -tion of the engine structure is disposed;

Fig. 4 is an, end elevation of the structure shown in Figs. l and 2; Fig. 5 is a sectional viewon line 5 5 of Fig. 1; Fig. 6 is a sectional view on line 6 6 of Fig. 1; Fig.

7 is a sectional view on line 7 7 of Fig. l; and Fig. 8 is a view similar to Fig. 7 showing a changed position of an element of the structure.

Like parts are indicated by similar characters of reference throughput the diderent figures.- Y

rI`he novel mechanism of my invention is immediately associated with the casing or piping 1, 2 which is interposedrbetwecnf the carbureter 3 and the intake manifold 4 of an internal combustion hydrocarbon engine, this piping having an inlet portion 5 which is in immediate connection wlth the carburetor structure and an outlet portion 6 which is in immediate connection with the manifold. rIhe casingportion 1 surrounds a plurality of inwardly tapering radial webs 7 which are spaced apart by inwardly taperingl radial ports 8. For con venience of manufacture and assembly, the peripheral edges of these webs are joined by a ring 9V which is clam ed between the casingportions 1 and 2. Said/webs carry a rearwardly projecting sleeve bearing 10 at their inner merging ends. The .stem 11 of a throttle valve is mounted to turn in said bearing. rPhe throttle valve is mounted upon the front end of its stem, to turn there- Specification of Letters Patent. Patgmted Dec, 239 1919,

with, by a screw 12 and includes a plurality of blades 13 equal in number to the ports 8. rIhe webs 7 have their front faces iiat and in a single lane which is at right angles to the axis of tlie valve stem 11. The blades 13 are of such shape with respect to the ports 8 as to be adapted to close the same and are of such shape with respectl to the webs 7 intervening between the ports as to be capable of occupying positions altogether in front of these webs whereby said ports may then be completely opened. "The throttle valve blades 13 are desirably provided with separately formed continuations 14 shaped somewhat as are propeller blades and so disposed with respect to the carbureted air or other engineoperating fluid flowing from the inlet 5 to the outlet 6 as to be given turning throttle valve closing movements, the extent of such movements depending upon the ve locity of the flowing.,'engineoperating fluid y and the resulting impact thereof ,upon the impact receiving portions 14 ofthe valve.l

valve disposed at the outlet side of the valve and at the throttle valve opening to be opera-tively subject to the increasing velocity w18 in the casing portion 1. These-openings are arranged on the arc of a circle whose center is in the axis of the spring. By changing the hole 18 that receives the pin 17, the tension or force of the spring may be adjusted. The forward end of the spring engages a pin 19 that is carried by the collar 20 which is secured to the valve stem by means of a transverse pin 21. This pin 21 projects laterally beyond the valve stem so as to have its plane of movement intercepted by an abutment or stof;1 22 which-is n ormally stationary when t e throttle valve is being automatically operated. When the spring 15 is free to act it serves to open the throttle valve to the position where the pin 21 engages the stop 22, this stop and pin dening the limit of rotation and opening movement which the spring may have upon the valve. In order for the spring to have .full range of movement the stop 22 (constituti'ng a part of the manual control mechanism) must be in wide open relation and the engine must be either at rest or running under full load. If the engine be running under less than its full load and with the manual control mechanism in wide open relation, the range of movement .of the spring 15 will be limited by the rotative e'ort produced by the impact of the engine operating iuid on the (3o-acting valve closing portion 14 of the throttle valve. The ports should remain full open at governing speed and full load and for all speeds below that value if the load be great enough to constitute an overload that reduces the speed below governng speed. When the engine is in operation the impact of the engine operating fluid upon the valve actuating portions 14 will cause closing movements of the valve in opposition to the spring when the engine speed exceeds the governing speed.

pheric pressure on the valve 14, 13. The bearing 10 desirably has a pocket 25 formed therein for receiving oil waste. This pocket is desirably provided with an angular cover 26 that leaves a slight rear portion of the pocket uncovered. An oil hole 27 is provided in the casing lportion 21 in proximity to the uncovered portion of the pocket 25 to permit of the insertion of the nozzle of an oil can to lubricate the bearing 10 and the valve stem 11. This oil hole may normally be closed by a threaded plug 28.

ln addition to automatically imparting opening and closing movements to the throttle valve, l also provide mechanism whereby said valve may be manually controlled. Such mechanism is in actuating relation to the abutment 22 whereby this abutment may be moved toward the pin 21 in opposition to the spring 15 whereby closing movements of the valve may be manually effected directly. By reversing the movement of the abutment 22 toward its wide open position opening movements of the valve may be effected or permitted. Any suitable means may be employed for connecting the abutment 22 with the mechanism that is to turn notch 34 in the casing ,1. The bow or shackle 35 of a padlock36, when inserted through the opening 33, 34 keeps the pin 32 in assembly with the casing portion 1. The

element 26 may be in the form of a disk whose periphery engages a packing ring 26 to prevent leakage of air into the engine operating Huid conducting portion of the casing 1, 2 when the cap 31 is removed.

A lever 37 is secured to the outer end of the shaft 29 by a pin 3 8. A washer 39 surrounds the shaft 29 and is interposed between the cap 31 and the adjacent end of the lever 37 The lever 37 may be connected with another lever 40 that connects the lever 37 with an operatin handle at a more accessible position. T e cap 31 is provided with a stop 41 which is engageable by a screw 42 upon the lever 37. By turning this screw the nearly closed throttle position of the abutment 22 may be adjusted. Themanual control of the valve is exercised while the engine is turning below automatically governed speed. Screw 42 and abutment 41 must be so related as to limit the closed or nearly closed position of ports to control the idling speed and the full open position need not be controlled by an adjustable stop but by any kind of sto The manuallever 37 serves to forcibly old ports closed (when the motor is being started) against the governor spring and when full against the stop should permit the motor to idle at some safe slow speed.

In the event of breakage of thespring or other governor parts, or if it be desired temporarily to prevent the governor from automatically performing its function, I so engage the pin 21 with the abutment 22 that movement of this abutment in either direction will cause corresponding turning movement of the valve stem 11 and the throttle valve having this stem. To this end thev abutment 22 has a short finger 22l forming a fork with the part'of the abutment normally engaged by the pin 21,l the finger 22 being normally outside of the plane of movement of this pin.- When the abutment is to actuate the pin 21 and the stem 11 carrying it in both directions said abutmentis moved forwardly to engage the` pin 21 between the sides of the fork. This result may be accomplished by relocating the washer39 between the base or lring portion 222 of the abutment and the adjacent portion of the cap 31, the abutment and the shaft 29-being resecured in fixed relation with each other following this rearrangementof the parts.-

To make this change theseal S has to be broken, indicating to the observer that such a change has been made.

When the engine reaches automatically governable speed, increase in such speed increases the velocity of the engine operating fluid, causing corresponding closing movement of the valve. Reduction in speed permits the spring -to impart opening movements to the valve. In a constant speed engine the inflowing engine operating fluid and the spring act in opposition to suit-the valve and occasioning corresponding vary-X ing velocities of the engine operating fluid at the valve suited to the varying loads imposed on the engine operating at some fixed"- speed. The shape of the blade portions 14 is such that the'velocity of the fluid flowing through the ports furnishes substantially straight line primary force for all throttle' openings, at fixed engine speed. vThe secondary force furnished by the valve opening spring 15 mus-t substantially conform to the primary force throughout the 1?nge of throttley openings in order to sec estable govv erning conditions to operate the engine at -caused to tend to decrease the throttle open` ing. The secondary force tends to operate to increase the throttle opening. This sec- 'ondary force is substantially equal to the primary force throughout the range of throttle openings at the required governing speed of the motor. To alter the speed to be maintained by the governor the spring `is placed under increased tension for increased speedand decreased tension for decreased speed, a result which may be accomplished by removing the cap 31 and locating the pin- 17 in anew hole 18.

While I have herein shown and articularly described the preferred embodiment of the invention' I do not wish to be limited 'to the precise details of construction shown as changes may readily be made without departing from the spirit of my invention,

but having' thus described my invention I claim as new and desire .to secure by Letters Patent the following 1. -A fluid operated motor whose throttle valve is provided with a coacting portion located inthe portion of the throttle passage in which t e velocity of the fluid passing to the motor is affected by the throttle valve and enabling the valve-to have closing movements imparted thereto by the impact upon such portion of the voperating fluid ipassing to themotor; a spring operating a throttle valve` having a -co-acting valve closing portion at the outlet side of the valve and at the throttle valve opening to be operatively subject to the increasing velocity of the fluid at the throttle valve opening;`and automatic mechanism for imparting opening movements to said valve upon decreasing velocityof the fluid at the throt-v tle valve opening.

3. A fluid operated motor provided with a throttle valve having a co-acting valve closing portion at the outlet side of the valve and at the throttle valve opening to be operatively subject to the increasing velocity of the uid at the throttle valve opening; and a spring operating upon the valve to elect opening movements thereof upon decreasing velocity of the uid at the throttle 'valve opening.

y 4. A fluid operated motor provided with a throttle valve having a co-acting valve closing portion at the outlet side of the valve and at the throttle valve opening to l be operatively 4subject to the increasing ve'- a throttle valve having a co-actin'g- .valve closing portion at the outlet side of the valve and at thethrottle valve opening to be operatively subject to the increasing velocity of the fluid at the throttle valve opening; a spring operating upon the valve to eiect opening movements thereof upon de creasing velocity of the uid at the throttle valve opening; an abutment limiting the eX- 'tent of valve opening movement; mechanism whereby said abutment may be manually adjustedto ell'ect valve closing movement in opposition to the spring; and means whereby said mechanism may be coupled with the valve to impart both opening and closing movements thereto.

6. A fluid operated motor provided with a throttle valve having a co-acting valve closing portion at the outlet side of the valve and at the throttle valve opening to be operatively subject to the increasing velocity of the fluid at the throttle valve opening;` automatic mechanism operating upon the valve to effect openingmovements thereof upon decreasing velocity of the fluid at the throttle valve opening; an abutment liml iting the extent of valve opening movement;

and mechanism whereby said abutment may be manually adjusted toellect valve closing movement m opposition to the spring.

mamie 7. A Huid operated motor 4provided with a throttle valve having a coacting valve closing portion at the outlet side of the valve and at the throttle valve opening to be op-y erativelysubject to the increasing velocity of the fluid at the throttle valve opening; automatic mechanism for. imparting opening movements to said valve upon decreasing velocity of the fluid at the throttle valve opening; and manuallyy controlled Vmechanism in closing relation to the valve and operating in o position to said automatic mechanism to e ect valve closing movement.

8. A lluid operated motor provided with a throttle valve having a coacting valve closing portion at the outlet side of the valve and at the throttle valve openinglto be operatively subject to the increasing velocity of the fluid at the throttle valve opening; a spring operating upon the valve to e'ect opening movements'thereof upon decreasing velocity of the fluid at the throttle valve opening; and ,manually controlled mechanism in closing relation to the valve and operatingin opposition to said spring to effect valve closing movement. v

9. A fluid operatedmotor provided with a lthrottle valve having a coacting valve closing portion at the outlet side of the valve and at the throttle valve .opening to be operatively subject tothe increasing velocity of the fluid at the throttle valve opening; "automatic mechanism for imparting opening movements to said valve upon decreasing velocity of the Huid at the throttle .valve opening; and manually controlled mechanism in closing relation to the valve.

10. A lluid operated motor provided With a throttle valve havingh a coacting valve closing portion at the 'outlet side of the valve and at the throttle valve opening to be operativelysubjectto the increasing. velocity of the fluid at the throttle valve opening;a spring operating upon-the valve'to e'ect opening movements thereof upon Yde.- creasing velocity of the Huid at the throttle valve opening; and manually controlled mechanism in closing relation to the valve.

ln Witness whereof, lly hereunto subscribe my name this 8th day-0f Noma. n i918.'

ALBERT n. Bannon.

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