US1188572A - Carbureter. - Google Patents

Description

C. SUMMERS.

CARBUREER.

APPLICATION FILKED SEPT. 8, 1913.

Patented June 27, l9l6.

3 SHEETS-SHEET 2** l/w/E/vo C, E. SUlVlVlERS,

CARBURETER.

APPLlcAHoN mm SEPT. 8, 1913,

risente.

canne E. sUMMnPLs; on KANsAseITY, Iif'issoUni, Assmann-To Laune-A. semaines,

on ean'rown, iraniana; Y

eannnnnrnnl.

Application filed September 8, 1,913. Serial No. 788,626.

To all l11i/wm it may concern l Be 1t known that I, CALEB E. SUMMERS,

a citizen of the 'United Sta-tes, residing at t the cylinder of a motor in measured quan- V tities, and whereby the delivery is automatically regulated to meet the changing requirements for varying load and speed of the motor, and varying temperature and barometric pressure. ln accomplishing this object I have provided a carbureter, comprising a measuring device which is operable from the crank shaft 'of the motor with ber into the feeding disk.l c J detailed perspective ot the liquid fuel chamwhich the carbureter. used, and is under the control of a temperature,and pressure regulator, so that speed oi: the fuel delivering mechanism is controlled by speed of the motor, and also by 'the temperature or pressure of the [luid medium within the' carbureter.

ln particular the invention comprises cer tain improved details of striuiure the preterred forms or' lwhich are illustrated .in the accompanying drawings, 'wherein .iigure i is a view ot'fa portion of an automobile having' a motor equipped with a carbureter constructed acciu'dinggto` my invention. Fig'. 'li is an enlarged perspective view ot' the carburetor illustrating its mountingion the motor.

tion on the line lll-lll, Fig'. ll, illustratin;r the. mechanism whereby the 't'uel feedingr parts are actuated from the crank shaft of the motor. Fig. lV is a vcross-section on the line lV-V, Fig. il, showing the 'fuel feeding mechanism and a part of the regulator.

Fig. V is a vertical section on the line V-V, l

Fig. IV. Fig. Vl is a detailed perspective of a portion o't the fuel teedingiV chamber showing thc intake. tor fuel from the cham- Fg. VU is a Specification of Letters Patent.

Fig. lll is a vertical sec-` raient-ea aan@ er, wie.

ber. Fig'. VIH .is aydetail' perspective of the mechanism for driving' the feed disk.`

Fig'. IX is a'vertical' sectionl on the,` line lli-IX, Fig. H, showing the regulator and throttle'valve. Fig. X is a vertical section on the line X-XFig. IV, showing the connection between the .regulator-land the driving n'iechanism. Fig-Klis a detail elevation ot the driving ratchet and' regulator trip. 'Referring` more in detail to the'p'arts- -l designates a portion oitl an automobile; having,` a motor 2 .of any4 suitable"type,"but here shown as comprising a plurality7 of cylinders having an intake manifold '3 and' exhaust manifold i; the vehicle Iandv niotoibeing illustrated merely to show thecombination and use. ot the 'carburetor without the idea ot limitingr -suclr combination and use to a vehicle or a motor ot any particular type, as the improvemeuts arev adapted for use `with motors oi. dillerent` types and particu? larly with aerialI motors, becausef` ofj'this susceptibilicv to -automatic regulation for variations in temperature and 'barometric pressure. v \.slbett.er results may be` obtained when the liquid, from which' the fuel'vapor is gencrated4` is heated prior to itsentrance into the motor'. l provide a heater loi" any suitable type, through. which fronrthe exhaust mauitoldare delivered,tofheat the liquid prior to its delivery to the mixer, and liuterpose this clement between fthe measurin; device and a mixer, in order that meas ured quantities of liquid may be passed through thel heater after the iuel has been measured and prior toA its `ultimate vaporiza tion. 1.

rl`he measuring` device comprises va easing (i. which is suitably mounted` adjacent the motor and heater, and incloscs a chamber 7 -lor the drivin(Y mechanism and sexarate n a eoI llO

ing chamber 7 the inner end of the shaft being journaled in a socket l5 in a boss 16 on the outer end of the regulator shaft 17. Fixed on the shaft 13, by means of a key 19, which is carried on said shaft and lothe disk is provided with pockets 2d which are adapted for travel past recesses in the inner face of a centering disk 25 on the` plate l0, so that liquid fuel contained within said chamber may fill the pockets, and for travel along and in close contact with bosses 27 on the face of the disk,V so that when the pockets are iilled and the disk is ree volved theliquid fuel may be trapped in said pockets and carried to an outlet port 26 in the plate 10.

The plate l0 is provided with a boss 28, having a. conduit 29 communicating with the outlet port from the measuring chamber, and with a conduit 30 having an outer end 3l opening to the atmosphere, and an inner end lying adjacent the outlet port ofthe measuring chamber, so that suction through the tube 33 that connects the conduit 29 with the heater, and through various other conduits and chambers with the intake mani fold will 'draw liquid from the pockets 24 as the latter register with the outlet port, together with the air which enters through the open conduit 3l) and communicates with the disk pockets, in order to enable the pockets to empty by suction in the discharge conduit.

As air from the open conduit 30 will be carried over into the feeding chamber, and, when accumulated therein, exert pressure on the liquid which might interfere with the proper feeding from the supply, I provide mounted on an intake nipple Bf) on the bottom of the head 9, and? has a channel Ll-l) opening into the lower portion of the feeding chamber.

y 'lhe acluatiug' mechanism for revolving the. Feeding disk comprises a ratchet wheel 42, which is fixed on the shaft 13 within the chamhe" 7, and is adapt'- ,l for actuation by pawls 4215 (Figs. lll and Xl), which are pirotally mounted on the ends ofthe arms H that are in turn pivote-ily mounted on meeste the shaft 13 and provided with collars d5, whereby they are held against the ratchet wheel.

lllhe pawls Ll are arranged oppositely, an d are adapted for alternate engagement with pawl carrying the ratchet forward, while the other simultaneously 4slides backward over the teeth.

The means for actuating the arms ist comprises links 50, the forward ends of which are pivotally connected with the arms il and the rear ends thereof with opposite ends 4of a block 5l, which is threaded on to the forward end of a plunger 52. The plunger 52 extends through-an aperture 53 in the rear of the casing G into a socket in the neck 55, whereby the case is mounted on the crank case of the motor, and through an aperture 5G in the crank case into contact with an eccentric 57 on the cam shaft of the motor, the inner end of the plunger being provided with a head 59 for bringing the bearing surface against the cam. The outer end of the plunger is reduced to form a shoulder 60, and seated against said shoulder and against the base of the socket 54.-v is a coil spring 6l, whereby the plunger is held in contact with the cam and against which it is lnwanled by said cam to advance the arms ed and carry the pawls over the ratchet wheel.

lt is apparent that, with the mechanism described, the measuring disk will travel at a speed directly proportional to the speed of the motor. as-it is actuated from the crank shaft of the motor.

Alfter the liquid fuel has been delivered to the heater, as described, it passesthrough the heater and is delivered therefrom into a conduit G3, through which it is conducted to a combined mixer and throttle Gel. prei erably con'lprising a cone-shaped housing (i5, having a port GG communicating with the conduit (33 and an air port G7. lievolubly mounted within the housing is a conesha} ed valve (38, having ports ($9 and 70 adapted for registration with the ports (S6 and respectively, and having a stem '71 extended through an aperture 72 in the base of the housing and connected, by any suitable means not shown). with an ordinary throttle lever. ,i

The housing- S5 is mounted on a sleeve 'lthat depends 'from a case 75 containing thlfe llO l. iii

' ingly tensioning said pauls to actuate with the ratchet member, a plungerliaving a hea d member pivotally 'connected with said arms, means" 'for actuating the plunger, whereby tlieviatchet member is driven at both the for- ='\vard and ,backward i'eciprocation of the plunger, and a regi'ilator for determining the eiiective 'engagen'ient of said paivls and r atchety member.

8. A carluireter comprising a casing having a mixing chamber and a fuel measuring device, means for actuating said fuel measuring device, an expansion member operable upon variation ci the temperature and pressure of its surrounding media, a sleeve separating the expansion member from the mixing chamber, means for indirectly connecting said mixing chamber With the interior of said sleeve, means for conducting fuel troni the measuring device to aid mixing chamber and means operable by said expansible meniber for controlling the means whereby said measuring device is actuated.

9. A carburetor comprising a casing having a. mixing chamber and a. fuel measuring device, means for actuating said 'fuel measuring device, a sleeve located in said mixing chamber, means for indirectly connecting the interior of said sleeve with said mixing chamber', an expansion member locatediivithin said sleeve and operable from the temperature ano pressure of the media Within the sleeve, means for conducting fuel from the measuring device to sait. mixin'g chamber, an automatic valve for supplying air to said mixing chamber, and means operable by said expansible member for controlling` the means whereby said measuring device is actuated.

10. A carbureter comprising a fuel measuring device,'nieans for actuating said device, a Atripmember for controlling said actuating means, a lever arm operatively connected- Wit-h said trip member and provided with a slot, a. pivoted arm having a pin. slidably mounted in said slot, and an expansible regulator operatively connected with said pivoted arm and adapted for actuation by the variations in temperature and pressure of the local external media- 11. A carbureter comprising a fuel mmsuring device, means for actuating` said device., a trip member Jr'or controlling said actuating;

means, a lever arm operatively connected with said trip member and provided with a slot, a pivoted arm having a pm slidably mounted in said slot, and a temperature and f pressure controlled regulator operatively connected ivitli said pivoted arm.

12. The combination with a motor havingF a suitable intake, of a carburetor comprising a casing having separate chambers, a

, liuid measuring mechanism contained Within one of said chambers, a regulator con-V tained within another chamber and adapted for actuation' by variations in temperature and dpressure of the local external media; mea-ns for conducting fuel from the measuring device around the regulator chamber, a

'tortuous conduit connecting said fuel conduit with the interior of the regulator chain` ber, means for actuating said measuring olelvice, and means connected'with said regulator for controlling said actuating means.

13. The combination with a. motor having a suitable intake, ola carburetor compris- .ing a` fluid fuel measuring device, a. regulator chamber having a conduit therearound leading to the motor intake,'and lia-ving a tortuous pipe communicating With said conduit, an extension on said conduit provided with separate fue] and air-intake ports, a` valve located Within said extension and 'having ports adapted for communication with' the extension ports, means for actuating said valve, a iiuid fuel measuring device, a conrduit leading from the' measuring device to lthe fuel intake port in said extension, and

a regulator contained within the regulator chamber and operable from the temperature and pressure of the media in said chamber and adapted tor controlling actuation of the measuringv device. i

14. A carburetor comprising a fuel incasuring device, means for actuating said device, a trip member for cont-rolling said actuati ng` means, a lever arm operatively connected with said trip member, an expansible regulator adapted for actuation by the variations in temperature Aand pressurey oi" the local ex-- tei-nal media, and a second lever connected 'with said regulator and having pin and slot connection with said first lever operating in direct proportion to the rate of expansion oit the regulator.

15. A carbureter comprising separate regulator and n'ieasuring chambers, an eX- pansible regulator in said regulator chamber adapted for actuation by variations in the temperature vand pressure ol' the surrounding niedia, a fluid measuring device in said measuring chamber, means for actuatingy said device, a trip member for controlling said actuating means7 a lever arm operatively connected with said trip member and having a slot conforming to the ite ot' expansion oii said expansible'regulater, and .a second lever having a pin slidably mounted in said slot and operatively connected with said regulator, for the pur pose set forth. y

16. A carbureter comprising a fluid fuel measuring chamber having an air vent in its upper part, a boss proj ectin'g into said chain-s ber and having adjacent air inlet and fuel outlet ports, a disk having a plurality of pockets adapted for travel past said ports and in close Contact with said boss to close said ports relative to said air vent, means for revolving said disk, and a temperature and pressure controlled regulator 'for governing the speed of said disk. 17. The combination `zvith a motor having a suitable intake manifold, oi' a carbureter comprising a fluid fuel measuring chamber, a boss projecting into said chamber and having air intake and fuel outlet ports, a tube connecting the fuel outlet port with the intake manifold of the motor, a throttle in said intake manifold for varying the absolute pressure therein, a disk governed by the absolute pressure in the intake manifold and revolubly mounted in said measuring cham- ,ber and having a plurality of fuel pockets adapted for travel past said air inlet and fuel outlet ports, whereby the fuel in said' :maaar/a inlet-port and exhausted through said fuel outlet port by virtue of the connection of the latter with the intake manifold of the motor.

18. The combination with a motor having a suitable intake manifold, of a carbureter comprising a fluid measuring chamber, Huid measuring device in said chamber, means for actuating said measuring' device, a regulator chamber, aregulator in saidregula'tor chamber adapted for actuation from the temperature and pressure of the surround' Witnesses:

R, F. THOMAS, L. E. Gears.

pockets is displaced by air from said air

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