US1302251A - Maximum-speed governor for automobiles. - Google Patents

Description

W'. R. VOORHE-ES.

MAXIMUM sIPEI-ID GOVERNOR FOR AUTOMOBILES.

APPLICATION FILED FEB. 16. I9I8.

lwm. Emma Apr. 29, 1919.

15 Il. 6 J1 .9 3%

` ATTORNEY WILSN E. VOORHEES, OF PERTH AMBOY, NEW

Leoaesa.

maximum-serien covnnnon ron nnroaroninns.

Specification of Letters Patent. Patented ipuujggg llglliih Application died February 16, 3933. Serial No. 217,55?.

To all whom t may concern.'

Be it known that ll, WILSON R. Voonnnns, a-citizen of the United States, residing at Perth Amboy', in the county of Middlesex and State of New Jersey, have invented a new and useful Maximum-Speed Governor for Automobiles, oi which the following is a specication.

'llhis invention has reference to maximum speed governors for automobiles, and its object is to provide an attachment which may be applied to the carbureter of the explosion engine ot an automobile, whereby the vehicle may be prevented from. attainin more than a predetermined maximum Spee The invention comprises an attachment interposable between the carbureter and intake manifold of the explosion engine, which ,attachmentincludes a valve, and has connections to the canbureter whereby suction therein produced tends to close the/.valve and so throttle the intake to the engine. "The arrangement in such that the vehicle may start and attain a certain speed, but beyond :such speed the suction of the engine is effective to actuate the throttle and cut down the intake to an extent to prevent the engine from exceeding the desired speed.

The invention is particularly useful in connection with'vehicles where the drivers are employees liable to exceed the desirable speed, which speed may be determined by trac regulations. With the invention, full power maybe obtained up to the predeter. mined speed, but such speed cannot be excelled, wherefore the vehicle owner is not open to penalizationby the speeding of the vehicles under the control of irresponsible orcareless drivers.

llhe invention will be best understood from a consideration of the following detailed description, taken in connection with the accompanying drawing forming part of this specification, with the further understandin that, while the drawin practica Vform of the invention, t c latter is not conned to any strict conformitywith the showing of the drawings but may Abe changed and modified so long as such changes and modifications come within the We of the appended claims.

n the drawing Figure 1 is an elevation of thel cylinders and carbureter of an automobile engine with the invention applied;

Fig. 2 is' a side elevation of theattachment shows. a

separate from the carbureter, and showing it as seen from the opposite side to that viewed in Fig. 1, the showing being on a larger scale than that shown in Fig. 1

Fig. 3 is a section on the line 3 3 of Fig.

1, with distant parts omitted, but drawn on Fig. 5 is a section on the line 5-5 ci Fig. 3.

Referring to the drawings, there is' shown in Fig. 1 yan outline representation ot an explosion engine 1, such as may be found upon an automobile, and the showing ot the engine may be considered as representative of ,any suitable automobile engine, or in fact, 0i' any explosion engine to which the invention is applicable. There is also shown in Fig. 1 a carbureter 27 which may be consid ered as of known type and indicative of any suitable type of carbureterv adapted for the purposes of the present invention. No detailed description is given of either the engine or the carbureter, and mention is made of parts of both the engine and carbureter onlyin so far as is necessary for an `understanding of the invention.

,Between the manifold 3 of the engine, and the main conduit 4: of the carbureter, there is locateda coupling 5 provided with terminal flanges 6 introduced between the usual danges 7 and 8 on the-manifold and carbureter respectively.- The coupling 5 forms 4part of the attachment, and is of. sucient coupling 1s an extension 11, inclosing part of a chamber 12, the remainder of the chamber comprising a cap 13 made tast to the entension 11 by screws 14 or otherwise. The entension 11 may be in one piece with the coupling 5, and the coupling with its extension as well as the cap 13 may be in the form of castings. The cap 13 is made separate from the extension 11 to permit access to the interior of the chamber 12. At one end, the extension 1 1 and cap 13 have cylindrical matching portions 15 rippin a neclr 16 on one end of a cylinder 1%, there y holding the cylinder in place, the gripping being accomplished by screws 18 similar to thescrews 14.

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The cylinder 1'( is provided at the end remote from the neck 16 with a head 19 indicated as screwed on the cylinder, but it will be understood that the head 19 may be otherwise secured. Within the cylinder there is located Ia piston 2O fast at one end to a pistonl rod 21 in turn connected to a crank 22 within the chamber 12 and fast to the shaft 10. rPhe piston 2O is made to fit snugly yet freely in the cylinder 17 ,since it is not obligatory that the fit be a gas-tight one.

within the Cylinder-.17ml the Side of the s the interior ofthe cylinder th-rough the head 19 by a coupling 27 vis a pipe 28, leading to the duct t of the carbureter, to which duct [the pipe is connected rby a coupling 29 or in .any other suitable manner, the arrangement' being such that the pipe 28 communicates with the carburetor near the outlet end of the latter.

ln order lto prevent the formation. of air or l gas cushions within the chamber 12, passages 30 are bored through a suitable portion of the coupling 5 so as to come close to the shaft 10 in a direction about perpendicular to the length of the shaft, and at another point, other holes 31 are bored in intersecting relation to the first-named holes to oommlmicate with the atmosphere, those holes close to the sli-aft being plugged attheir outer ends so that access may not be had directly to the shaft as would occur if the outer ends ofthe holes 30 were not plugged. 'llhne t between the shaft 10 and its bearings adjacent to the chamber 12 is sufficiently loose to permit ample air leakage between the passages 30 and the chamber 12. 7

lin order'to prevent any tampering with the adjustments of the device, the screw 26 has a hole 32 bored through the head thereof,

. and the coupling 27 is provided with an ear 33 with a hole'/i bored therein. This perl. mits the passage of a wire 35 through the holes to be connected by a' seal 36 whereby unauthorized change yin the adjustment is prevented. Similar arrangements may be made 1n theI structure vwherever parts can be removed and adjustments varied.

. When a vehicle equipped with the inven- 1 tion is intrusted to an' employeel for operaltion, the employer can be assured that a' certain speed limitwill not be exceeded by the proper adjustment of the attachment. Then when the driver of the vehicle speeds up, the suction produced by the engine will raoaeei establish vacuum conditions through the pipe 28 to the corresponding' side of the piston 20, which vacuum conditions when the predetermined limit is reached, cause a movement of the piston 20 in opposition to the holding power of the spring 23. |This results in a turning of the valve 9 through the piston rod 21, crank 22 and shaft 10, to close i posely reduce the speed in order to maintain the necessary power to run the vehicle. U der Isuch circumstances, an operator will not attempt to exceed the fixed speed limit, since such attempt must only result in failure.` ln this manner, the device is protective of the interests of the owner of the vehicle who must intrust it to others to operate, and the liability of the owner for injuries due to the carelessness or disobedience of the operators due to excessive speed is entirely avoided. Even if the operator-be inclined to change the adjustments lin order to attain higher speed, such change cannot be brought about without detection', because of the sealing of all .pl-aces where access to the adjustments might be had to the extent of changing it.

What is claimed is :-y

1. An attachment for explosion engines for limiting the speed at which the engine may be run by an operator, comprising a icc coupling for location kbetween the carbuwhereby when the attachment is set an op-y .erator of the engine cannot run the latter`r above a predetermined. speed. ,l

2. An attachment for explosion engines forl positively limiting the speed at which the engine may be run by an operator, comprising a valve for introduction into the fuel conduit between the carburetor and-engine, pressure-,responsive means connected to the valve, a casingr wholly inclosing the presics sure-responsive means against access, and

means for adjustingthe pressure-responsive means and provided with meanswhereby the adjusting means m 'y be sealed against unauthorized manipulation.

3. An attachment for explosion engines for establishing a predetermined limit at which the engine may run by. an operator, comisc neonati prising means for controlling the amount of fuel directed to the engine, pressure-responsive means connected to the controlling' -n'xeans to cause the latter to act when the desired speed limit has heen attained, and means for sealing against unauthorized manipulation all parts of the attachment through which change of adjustment may loe effected, whereby the attachment when installed and adjusted is proof against the runningI of the engine -ahove a predeten mined speed.

4. Mea-ns for establish-ing' apredetermined limit at which Van explosion engine may loe run by an operator, ,comprising a casing having a fuel duct introducilole hetween'the carbureter and vintahe manifold of the explosion engine, means for controlling the amount of fuel passing from the carhureter to the intake manifold, actuatingl means for said controlling,7 means responsive to the suction of the engine and completely housed within the casing against access, and regu lating means for the actuating means accessible at the exterior of the casingl and constructed to he sealed against manipulation.

5. An attachment for explosion engines for limiting the speed hy controlling' the fuel directed to the engine, comprising a coupling for inter-position between and connectingl a carburetor to the manifold of the explosion engine, a valve in the coupling for controlling the flow of fuel from thecarhureter to the manifold, a chamber structure carried by the coupling, a cylinder carried by the chamber structure and fumi nicating; therewith, va crank shaft carrying the valve and having its cranh end within the chamber, a piston rod extending into the chamber and connecting the or and piston, a spring engaging the piston on the side remote from the piston rod, a movable plate engaging the spring, an adjusting screw engaging the plate, a head for the cylinder carrying the screw, and a pipe coinn'nunicating with the cylinder through said head and arranged to be coupled to the oarhureter adjacent to the outlet end thereof.

6. in attachment for explosion engines for limiting the speed hy controlling the fuel directed to the engine, comprising; a coupling for interposition between and connecting a carbureter to the manifold of the explosion engine, a valve in the eomoling1 for controlling the flow of fuel from the f carhnreter to the manifold, a' chamber structure carried bythe coupling, a cylinder carried hy the cha-miner structure and communicating therewith, a cranlr shaft carryingu the valve and having its' crank end der through said head and arranged to 1.oe-

coupled to the carloureter adjacent to the outlet end thereof, sald coupling having tuousair passages between the chamher and the atmosphere.

'in istimony that l claim the foregoing as my own, l have hereto affixed my signature in the presence of two witnesses.

(inne. L. Srnnnnwnnn 'llnoiniis Morinesnr.

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