US1036424A - Pump feeding mechanism for internal-combustion engines. - Google Patents

Description

L. H. LBBLLEM E G. JEAN-BAPTISTE BREGERAS. I PUMP P EEDING MECHANISM FOR INTERNAL GOMBUSTION ENGINES.

. APPLICATION FILED NOV. 1B, 1911.

'Patented Aug.. 20', 1912.A

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'PUMP FEEDING MECHANISM Fil-1R'INTERAL-COIVEUSTEGN ENGNES.

18, 1911. Serial No. 651,131.

To all. fur/wm it may concern f lle it known that we, Louis Henin Lnnnfi lli-:Lumi und AGisron Jem -Brirfris'in BR- oinms. citizens of the Republic of France, und residents of Boulevard diisnieres, Neuilly-sur-llcine, Seine, in the said Republic, eng'neeis, have invented a new and use ful Pump Feeding Mechanism tor Internal- Conibustion lllngjines7 of which the following is a specification.

The governing of internal combustion enfines which can operate with a liquid com bustiblc has generally been eliected l'iitherto by centrifugal force governing. Such governors, however, are subjectsolely to the that .of the power developed or used; this latter factor however is alone essential, narticulznly when the engines are used for `driving machinery or groups of electric' generators. y

The present invention relates to e, governing device which adjusts with the reatest recision thev admission of the liquid cornustible into such engines in accordance with the demand mede upon them for newer, more particularly when the engine is driving en electric niotor.` For this purpose the dmission of the liquid fuel into the engine is controlled by e. pump which forces the liquid under pressure into a closed receiver containing mercury; the level of the letter, under the action of a solid body floating therein end suitably displac Ld, rises or .falls and thus regulates the pressure of the liquid combustible, such es petrol, supplied to the engine. The movement of the solid body may be elle@ d by hand or ma; be produced a sole-noi surrounding it and supplied with electr-re current; in the latter cese the body is made of soft iron and constitutes the core of the solenoid. n

The accompanying drawing shows in vertical section a governor constructed according to the present invent-ion and the petrol pump, the adjustment being produced in this case by the elect-ric current.

The petrol or other liquid contained in a reservoir a from whence it is sucked by a pump of any suitable kind which delivers 1t into a duct l). In the eirample engine. For example the sha't't d that drives the pump may screw threaded portion j of i that the petrol is 'ter through -pipe Zto a degree 'proiortiohal combustible is shown the pump consists of a plunger driven in suitable manner from thebe un extension ot the dis-- tributingg;l shattof the engine. The pipe l) delivers into :1i-closed receiver e into which 1s screwed e tube f extending; into the vessel NEUILLY Divided and this application tiled November and around which is a solenoid g supplied v with current from the generstoror trom a dynamo driven oy the motor or .in :my other suitable ine-nner. ln the receiver e there is a loyer of met Jury It which, owix'igg to the pressure of the petrol5 rises in the tube into the mercury there extends within the tube f a core 'a' of the solenoid ,7; this core is hollow and isteirnineted et its nse'by n wood and similarly hollow. Between the core there is sullicient space for passage of the petrol so that the excess o the latter may be returned. b 4Way of pipe lle-tc the reservoir a. The petrol torced by the pressure from the receiver e posses to the engine through a tube l.

The operation ci the r. followsz-r1`hepetrol supplied by pump c travels through tube l; intotlie'recciver e. Here it is subjected to the pressure of e, column o'niercury which rises in the tulie and within the hollow core e', f7', the height oi tho column being nroportionat to the intensity of the current traveling through the solenoid g., that is to4 sayto the power developed by the internalcombustion engine, so

.always supplied to the latto the power demanded or the engine. lt will be seen that the variation oi'the current in' the/solenoid causes the hollow `core i, j to riseor descend and accordingly to displace the column o' mercury in the inthe core, causing its level to rise or fall. When the output of power by the engine, that is to say the intensity of the correr. t, increases, the solenoid g attracts its core i more or less which therefore descends and increases the pressure of the petrol supplied yo the motor. lf the pressure exert-ed by the iercury becomes too great, the excess of petrol which cannot be delivered through the tube Z rises .in the form of bubbles through theincrciiry indicated in the drawing an passes above the core c' whence it can return through tube la to the supply reservoir o.

The arrangement is adjust-ed in such a man-g fargement is as u nd the tube tube and with- Instead of using u cor such :is z', operated by a solenoid, it is evident that there may be substituted a solid body extending into the mercur la, the movements of which muy be 5 contro l ed either directly byhand or through hinterm@ ary of a mechanical or electric-il device #any suitable `kind set in action by the engine.'

Having thus described our invention and the best means we know of carrying the same into practical effect, we claim l. A device lfor regulating the pressure of liquid combustible admitted into un internal combustion engine, which device comprises u closed receiver containing liquid combustible und niercurvxgdevices for forcing liquid combustible into the said receiver, :i solid body extending into the said mercury, means .for causing the said sol-id body to rise or full so :is to vary the height ofthe column of mercury and a pipe for delivering the liquid combustible under pressure.

S2. device for regulating the pressure of combustible admitted into an internal combustion engine, which device comprises a supply reservoir containing combustible liquid, u closed receiver containing combustible liquid and mercury, devices for forcing the liquid combustible from the supply reservoir into the closed ing into the said mercury, means for causing e said solid body to rise or full so :1s to vary the height of the column of mercury, a oipe for delivering liquid combustible under receiver, n solid body extend-` pressure and n pipe for conducting buck to the supply vreservoir excess of lllqpid combustible from .the closed recelver.

3. A device for regulating the` pressure of liquid emnbustil'zle admitted into an internal combustion engine, which device comprises a closed receiver contuininr li uid combustible und mercury, devices Efor orcing the liquid combustible into the said receiver, a metallic body extending into the mercury, a solenoid for causing the said solid body to risc or fall and n pipe for delivering the liquid combustible under pressure.

17. A device for regulating the pressure of ,:ombustible liquid admitted into un internal combustion engine, which device comprises a closed receiver containing liquid combustible und mercury, devices for forcing the liquid combustible into the said receiver, a tube extending,r into the said receiver, u bol-cd metallic body :irrungcd in the suid tube, u bored muss. ofA wood fixed to the base of the said metallic body, a solenoid surroundingr the said tube und npipe for delivering the l-iq?"Vv uid combustible under pressure. In testin'iony, that we claim the foregoing as our invention, we have signed our names in presence of two witnesses, this seventh duv of November 1911.

LOUIS HENRI LIBERT BELLEN.` GASTON JEAN-BAPTISTE BREGRAS. Witnesses:

H. C. Colm, Amine FARE.

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