US1048083A - Carbureting device. - Google Patents

Description

I. LAVENDER. GARBURETINGDEZVIGB.

APP'L-IOATION FILED DEO. 3, 1910. .RENEWED NOV. 14, 1912.

Patented Deo. 24, .19121 State of Iowa,

j UNITED STATES PATENT OFFICE.

IEA LAVENDER, or WEBSTER CITE',l IoW-A, ASSIGNOE or ONE-HALE DYsAET, or WEBSTER, CITY, IOWA.

Tomooroa ROY CARBURETING DEVICE l v Specification of Letters Patent. Application led December 3. 1910, Serial No. 595,468.

Patented'Dec. 24, 1912. Renewed November 14, 1912. Serial No.' 731,433.

To all whom it may concern:

Be it known that I, IRA LAvEIsDEn, a citizen ofthe United States, and a resident of Webster City, county .of Hamilton, and have invented certain new and useful Improvements in Carbureting Devices, of which the following isa. specification.

. -My' invention relates toimprovements in carbureting devices especially adaptedfor 4use in conjunction with internal combustion engines.

The object of my 'invention is the provisionjof a carburcting device by means of which a combustible mixture of constant proportions of air and hydro-carbon vapor will be supplied to theengine at all speeds of the latter,

A further object is the provision of a carbureter of the character` mentionedl which will be of improved construction and etiicient in operation.

Other objects will appear hereinafter.,

With these objects in vie-w my invention consists in a. carbureting device characterized as labove mentlonedand in certa-1n details .of construction and arrangements of Aparts all as will be hereinafter more fully described and particularly pointed out in the appended claim. v

y invention will be 'morereadily understoodby reference to the.l accompanying' V drawing forming a part of this speciiication and in which- .Y Y Figure 1 is a fro-nt elevation of'a carbureter Vembodying the preferred form of minventionF ig. 2 is a central section there'o.,

and Fig. 3 is a transverse section taken on line fc-a2 of Fig. 2.4

The preferredV form ofmy invention as illustrated in the drawings comprises a casing" or body formedv in two parts l and 2,

said parts being preferably cylindrical in -form, the same being-rigidly secured to gether with their open ends registering by meanssof bolts 3 or other suitable securing device'v extending through circumferential anges formed upont-he contiguousedges of saidparts. Arranged in thepart 1 of the casing. isan airvmeter of suitable design, that preferably lemployed comprising the measuring chaniber 4, in -`which the' disk piston 5 is located and operates. The Ineasuring chamber 'communicates with the air intakeport 6y which is open to the outside adapted tobe connected with orto communicate with the piston chamber of the engine.

in conjunction with which the carbureter is used. The operation of the air meter 1s such, asv 1s well known, that the suction measured amount vof air from the port 6 to the`port-7.

Mounted centrally in the" outer head of the casing `part 2 is an inwardly projecting stud'slraft 8 upon which is rotatably mount'- ed -a sleeve 9. Formed at one end of the sleeve 9 is an eccentric l0 and formedy at the lother extremity thereof a circumferential dlangell. The latter connected with the disk piston 5 of the air meter by means of an arm 5 which'projects in the usual manner from said pis-ton, the outer. extremity thereof loosely engaging'a perforation 11 formed for the reception' thereof in the fiange 11; the arrangen'ient belng such that upon rotation of the piston 5`caused, as above mentioned, by the engine suction, corresponding rotary movement will be imparted to said flange andhence to' the sleeve 9 and eccentric 10. Loosely embracing-the` eccentric 10 is a .rectangular yoke 12, the arrangement being suchV that is operatively latmosphere and the exhaust port 7 which is ro'tation of said eccentriceffects vertical .res

lciproeation of said rectangular yoke, the eccentric being adapted to effect the elevation of the same and a tension spring 13 effecting the positive return movementthereof. Upwardly projecting from the upper side of the yoke 12vi's a piston 14 which is adapted.

for operation in a cylinder 15 'formed in the casing2.- Project-lng from the opposite side of said'i'ectangular yoke is an arm 16 which is coaxial 'with the piston 14, the lower or outer reducedl end ofsaid arm 16 slidably engaging a guide screw 17 threadedin the under side of the casing 2.v The screw 17 is adapted to be adjusted for engagementv with the shoulder 18 formed upon the arm 16 this provision, as will be observed, affording means for the adjust-ment of the amplitude of movement of the yoke 12 and hence of the piston'14, suchadjustment being made possible by reason of the loose engagement of said yoke with the eccentric 10, as clearly illustrated in Fig. 3. VW'ith the arrangl mentv disclosed by threading said screws 17 l' inwardly the stroke of the pist-on will be shortened and hence the effectiveness correspondingly lessened, outward threading of said scrciv evidently effecting opposite results.

.Formed in the upper end or sidepf the casing part l is a tortuous liquid fluid passage lt) one extremity of said passage ter- V ininating in a nipple which affords means of connection with a source of liquid tiuid sulviply, the opposite extremity of said paS- sage communicating by means of a pipe 21 with a nipple 2Q which communicates with the measuring chamber -of the air meter. The upper extremity ofthe cylinder 15 is in open communication, as illustrated, with said passage 19. the latter being provided at opposite sides ol said cylinder with check valves preferably ot' the ball type Q3 and 24 which are ada pled normally to seat in valve seats 25 and 2li respectively. Access to said valves for cleaning or repairing may be gained through screw plugs 27. Said Valves are so arranged, as will be observed, that upon downward movement of the pist-pn 14' a partial 'vacuum' will be created in the passage 19 between the valves 23 and 2e aiid` which will effect the drawing of liquid fuel past the valve Q3, the latter being arranged so asv to permit of such passage. Upon said movemento said piston the valve *24 Will evidently remain seated. Upon return movement of said piston a portion` of the liquid fuel drawn into the portion of the passage 19 intermediate said valves and into the upper end portion of the cylinder 15 will be forced therefrom past the valve 24 into the pipe 2l and thence into the air meter for mixture with the air contained therein for delivery to the combustion chamber of the engine. Tith Athis arrangement then it will be seen that reciprocation of the iston 14 such as iscaused by operation of t e piston 5 of the metei" will eiect the delivery of the fuel to the latter. Said piston 14 being operatively connected as shown and described with said meter the air delivered by said meter and the liquid fuel fed to said meter for mixture with said air 1Will' be constantly in the same proportions; acceleration in the movement of the piston 5 as caused 'by an increase in speed in the'engine will eect a corresponding acceleration in speed of thev piston let so that an increased supply of air delivered by the meter will eect4 a corre- Leashes sponding increase in the supply of liquid fuel, the speed of the piston 14, beinggoverned directly by that of the piston By reason of the adjustment afforded by the screws 17 the proportion of liquid fuel to that of air delivered to the engine may be varied in order that a mixture of exactly Y. proper proportions may be formed. W ith a device then of a construction as set forth a proper mixture may at all times be. formed and this proportion maintained at all speeds of the engine.

While l have illustrated and described the preferred form of my cai'bureter l do not` wish to be limited thereto as there inightbc many changes made in thc details ofl con struction and the arrangements of parts described without departing from tlie spirit of the invention as coinprehended within the scope of the appended claim. V

Having described my invention what l deem as new and desire to secure by Letters Patent is ln a carburc'ting device, the combination of an air meter comprising a rotatable mem'- ber adapted to be rotated by the suction created by an internal combustion engine when operating, said rotatable member be- 'ing adapted when rotated to deliver air from an air intake port in communication with the outside atmosphere to an outlet port,

adapted to communicate with the combus-` tion chamber of t-h'e engine; a rotatable eccentric; an operative connection between said rotatable member of lsaid meter and said eccentric whereby rotation of thefornier effects corresponding rotation of said eccentric; a rectangular yoke loosely embracing said eccentric; a piston carried by said yoke; a liquid fuel passage leading lo said meter, one end of the cylinder of said piston communicating with said passage; and a check valve in said passage at either side of said cylinder, whereby reciproeation (it said piston effects the forcing of liquid fuel in said passage toward said meter, substantially as described.

ln testimony whereof l have signedl my name to this specification in the presence ol two subscribing witnesses.

H. O. CUTLER, E. E. MASON.

Genie: of this patent may se obtained for v'e cents each, by addressing the.

` Washington, D. C.

Commissioner ofl Patents,

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