US1374649A

US1374649A - Carbureter

Info

Publication number: US1374649A
Application number: US796761A
Authority: US
Inventors: Jr William S Hadaway
Original assignee: Cutler Hammer Manufacturing Co
Current assignee: Cutler Hammer Manufacturing Co
Priority date: 1913-10-23
Filing date: 1913-10-23
Publication date: 1921-04-12
Anticipated expiration: 1938-04-12

Description

W. S. HADAWAY, JR.

CAHBUHETER.

APPLICATION FILED ocT.2a. 1913.

1,3745649. Patented Apr. 1921.

2 SHEETS-'gnam 1. gl,

9F@ J f5 IN VENTOR w. s4. HADAWAY, 1n.

cARsuETER.

APPLICATION FILED OCT. 23| 1913.

Patente Apr. 12, 1921.

^ 2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

WILLIAM S. EAIDAWA'Y, JR., OF NEW ROCHELLE, NEW YORK, ASSIGNORvTO TE CAUTLER-HAMMER MFG. C0., AOORPORATION OF WISCONSIN.,

cemsunnr.

Specification of Letters Petent Patented Apr. 12, 1921.

To allwlwmtma concern.'

' Be it known that I, WILLIAM S. HAD- AWAY, Jr., a citizen of the United States, and a resident of New Rochelle, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Carbureters, of which the following is a specification, reference being had to the accompanying drawings, forming la art thereof.

y` invention relates to carburetei's and devices of this general character which are utilized for mixing a combustible vapor with air for use as fuel in internal combustion engines.

011e object of my invention is to provide, in a Adevice of this character, means for vaporlzing asolene or other suitable liquid by heat witl an expenditure ofa ver small amount of energy without necessari y rais' ing the temperature of the device itself, or of the body of liquid which it Icontains.

Another object of my invention is to provide a simple means which 'may bel readily applied to carbureters of well knowntypes, for rapidly vaporipzingfthe fuel independently of the suction of the-engine. i

Another object of my invention is to pro- Vide a sim le and effective means for vaporizing the i in p ther ob'ects and advantages of my invention will beset forth hereinafter.

Referring to lthe drawings,

Figurelis `a sectional elevation of. a carbureter of tli'efloat type equipped with the vagorizer of `myT invention.

ig. 2is a partially sectional plan yiew of the gas outlet ofthe carbureter of Fig. 1

including. a sectional view of the vaporizer on a larger scale.

Figs. 3 and 4 are detail views of the vaorizer also on a larger scale.

carbureter of the wick type arranged and constructed in accordance with my 1nvention is shown in longitudinal section in Fig. 5 and in enlarged sectional detail in ike characters of reference designate corresponding parts in all the figures.v

Referring particularly to Figs. l to 4 1nclusive of the drawing,the carburetor 'shown is intended to be illustrative of any suitable device of this general character, and comprises the usuel float chamber 107 e Hoet el of agasolene engine at start-4 va1ve l5 which is governed by a float 16, a spraying nozzle 2O which is governed by a needle valve 2l, a primary air inlet 25, an auxiliary air inlet 30 having a puppet valve 3l, and a gas outlet 35.

The float 16 is preferably U- Shaped and need not extend into a pocket 40 of the float chamber, which is directly below the gas outlet. In thc bottom wall of the outlet 35 is a slot 36 throughwhich a wick 37 extends. Directly above the slot 36, in the top wall of the outlet, is atapped hole 38. The wick may be supported in any suitable manner in position to be influenced by erated in an electric heater 45.

For example, the heater may comprise a sheath 46 having a screw threaded collar or bushing 48 near one end.

Within the sheath is located suitable resistance elements such as a slotted ribbon 49 and insulating strips 50. The sheath is sealed into the collar or bushing 48 which fits closely into the tapped hole 38, and' the body. of the sheath is preferably composed of a pair of sheet metal strips welded together at their edges. One `of the strips of which the sheath is composed, extends outwardly into a terminal cap 51 and supports a pair of terminals 52. i

The wick may be'of any suitable form and may be similar instructure to ordinary lamp wick. The wick iii the arrangement illustrated, is tubular .and is slipped onto the heating element so thatits upper end is in close contact with the sheath of the heater and its lower end extends into the liquid in the float chamber pocket 40. The lower end of the wick may be' suported against lateral displacement if necessary in order to prevent the wick from interfering with the float.

In the device above described, the electric heater may be veiy advantageously utilized for startin purposes, only a relatively small quantity@ electric energy being necessary the heat gensov to produce immediate results and the usual the wick arrangedto continue the vaporiz. `ing after the electric energy is disconnected.

An arran ement designed to operate in this way is s own in Figs. 5 and 6 to which reference may new be had.. A plurality Instead of this a'r' of wicks 37 dip into liquid fuel contained in a chamber 55 which is supplied by a pump 56 from a fuel supply tank 56., An

outlet or overflow 57 keeps the liquid level in the chamber substantially constant.

Air is fed through a primary air inlet l 25 andv thence to a .mixing chamber 58 through which the Wicks extend and Where it is charged with fuel vapor.

Extending transversely of thechamber 58 ai'e a plurality of electric heaters 59 which vantageous for use on automobiles or boats Where the available supply of electric energy is very limited. The rectly to such a small body of liquid in the wick, that immcediate. vaporization results, although a 'very small quantity of electric` energy yis converted into heat..

Another important advantage arises from the factthat carbureters of Well known types and in fact carbureters already in service may be inexpensively equipped with my electric vaporizer. Furthermore, carbureters of Well known types, designedr only for use With comparatively volatile fuels such as gasolene may readily be adapted, by em-l ploying the vaporizer of my invention, to operate With liquid fuels such as kerosene or alcohol having very -much higher -boile ing points.

The advantages of this arrangement will be well understood by those skilled 'in this art, for example it is not only possible to adapt a carbureter of well known type to handle heavier fuels, `but both lthe engine and the earbureter may be ldesigned for the .f

lighter fuels and may successfully operate on heavier fuels by merely 'equippingthe carbureter `with the electric .vaporizer of my invention.

The devices shown and described herein lare covered broadly by the claims of Patent No. 1,163,657, application for Which was filed of even date herewith.y I n I do not intend to be limited by the term carbureter to a device for preparing fuel only for use in internal combustion engines, but on the contrary, or mixer in a broader sense, which prepares fuel either for this purpose or for any otherpurpose, as for example,

for supplying a gas burne" heat is applied so dia Wick for transferring I refer to a vaporizer 'into the chamber and a iaacee Various 'modifications and adaptationsof my invention may be effected and I intend that only such limitations be imposed` as are indicated in the appended claims.

Vllhat I claim is: l. A carbureter comprising -a mixing chamber, a liquid fuel containing chamber,

a` capillary agent for transferring 'fuel from vthe fuel chamber to themixing chamber and a heater acting upon the capillary agent for vaporizing the liquid in lthe chamber.

2. A carbureter comprising a fuel containing chamber, a mixing chamber, a spray nozzle discharging into the `mixing chamber, a

vcapillary agent for transferring fuel from the fuel chamber to the-mixing chambery andv 2 a heater acting upon the capillary agent. for; vaporizine the liquid in the chamber.

1 3. A carbureteri` comprising a. mixing chamber, a liquid fuel containing chamber,

a wick for transferring fuel from the fuel chamber to the mixing chamber and a heater acting upon the Wick liquidin the chamber.

'4. A carbureter comprising a fuel con'taining chamber, a. mixing chamber, a spray nozfor lvaporiz'ing the.

zle dischargingI into the mixing chamber,

fuel from the fuel` chamber to the mixing chamber-and 'aheater acting directly upon the Wick for Vaporizing the liquid in the chamber.

5. A carbureter comprising a mixing chamber, meansarranged to transfer liquid fuel by capillary action to said chamber and means acting directly upon the first named means for accelerating the vaporization of the fuelin the mixing chamber.

6. A carbureter comprising a ,mixing chamber, a Wick arranged to transfer liquid fuel by capillary action to saidch'amber and means acting in the mixing chamber. 7. A carbureter comprising a mixingy chamber, a Wick arranged to transfer liquid fuel by' capillary "action to saidl chamber and a heater acting directly upon the wick for vaccelerating the' vaporization ofthe fuel in the mixing chamber. i l g 8. A ycarbureter comprising ay mixing chamber, a Wick arranged to transfer liquid fuel by capillary action to "said chamber and an electric heater: acting directly uponl the Wick for of the fuel in 9. A carbureter comprising a mixin chamber, a Wick arrangedto transfer liquid fuel by capillary action to said chamber, an air inlet for admitting air to the accelerating the vaporization the mixing chamber.

directly upon the vaporization of the l0. A carbureter chamber, an electric heater unitextendin wick for initiating the directly upon the Wick.l for accelerating the yvap'orization of they fuel l wick in contact wi ifea kchamber and an electric heater adapted to act fuel in the chamber.` comprising' a' mixing l :L Wick ooo y. 'f' adopted so be immersed. in .e, de oloer end. being oui; of @he sz'mfmged in a passage so that the passage draws the'quf V aefon whofeby wfpol'zwwending Lion of the Wick, to ajeeelelforse evopoyizw fion.

LCL n a. vapolzer means 01 nefessing the ms of evaporzaon 'by sawing a qmo; fuel into a chamber by y espiaa'y notion, sold means compmsmg a porous mambo? having o pori/ion cons'fsantly izo-- morse@ in o liquid, the. othe portion being ou?. o the liquid and exposed in s chamber so prosent a relatively Ewige surface sax-tw rated with the fuel by eaplmy action with which or' ourlents may oontaet.

ZCL vaporizer 'for eszbureters comprising an elongate porous member having-an eleotic bestel* at one end adapted to be exposed in aA shambles above the liquid fuel, ehe other end o tbe porous member being mmased Win the Squid fuel Wleroby the fuel may se immo to the exposed end cepmy acon, 'vapo'sed in the chsmber.

In Witness whereof hand. hs 22nd daje; o.

"tra