US1640291A - Carburetor - Google Patents

Description

Aug. 23, 1927. 1,640,291

R. D. PERKINS CARBURETOR Filed Oct. 4, 1926 INVENTOR ATTO R N E.Y

Patent ed Aug.

Y vide will be saturated .with

f-B TENT RALr1r'n. mamor,.-xnnos rrn, isconsin.

. cannunn'ron'.

" -.App1ication'filcd. cutter-4; 1926', seri i No. 139,452.

This inventionrelates to a carburetor, the.-

generalobject oftlie invention'being to pro-L awick' which extends into the gasoline or other fuel so that it ,will become saturated with the fuel, with means for drawing. the air supply through the wick-s that'the'air the fuel; .thus' 'providi'nga more perfect" with'the air and preventing dust, and dirt from being drawn. into the motor with" the air.

A further object of; thetinvention; is to rovide means for heating the gasoline-or fuel by the heatedair jdrawnffroma stove so that the gasoline. will be more volatile.

- A further object of the invention is to {I so arrange the parts- -..-;the heated body of gasoline canpass directthat- ,the fumes from" 1y to the motor, thus making easier start- 1' ling ofjthe motor.

A stillyfurther object of the intention is from*entering the carburetor.

lustrated in the accompanying drawings-an otherfeatures of construction and in the "This invent on also consists in certain combination and arrangementof the several parts, to be hereinafter fully described, 11- specifically pointed out. in the appended-- claim.

In describing my invention in deta1l,' reterence will be had to the 'accompanylng Figure 2 is a section on eral views, and in which drawings wherein like characters denote like or corresponding parts-throughout the: s ev- Figure 1 is a longitudinal sectional view through the improved carburetor. line 2 -2 of Figure. 1. -'j Figure 3 is a view of the wickand adjustable shield.

In these views; has a chamber 1 is adapted to be ply by the nipple 3; The chamber is pr'o- 1 indicates afcasing which vided with the perforations/l so. that heated air drawn from a stove through ,the connection 5 and its. enlarged end 2 will pass through the passages formed by the porforaber. 1 and a pipe 7 is formed .with the cover and tions and thus'heat the gasoline inthe chain- A' cover 6 is provided tor the casing has a portion extending wellintothe casing 1, with the outer end of the pipe being adapted to .be connected with the intake manifold of a motor. A second casing 8 ing. through mixture of the fuel provide means for preventing back-fire.

- the' passage 18 between formed at its bottom which connected with-a fuel supof "consider-ably less diameter than the first casing; is arranged in the first casing with its flange-"9 held between the top of the first "casing andf'the cover 6.

Thetop of the casing 8 'is provided with theperforations .10' so that the air passing-into. the first casaround thesecond casing, will enter the same .a'ndywi-ll pass from the said casing into the pipe '7. and thus enter the engine. .z'Before passing'intothe pipe 7 however, the air must supported by'a cylinder 12 of wire mesh, the wickacylincler' being surroundedby a held. in spaced Two of these. rods are extended to -pass through the covert, where they are pro- .videdifwith the nuts 15, springs'16 being arranged on the extended portions of the rods-and. tending to hold the shield in its lowest position. By

less of the "wick subthelower part of the. casing 8, the entrance of this fuel from the chamber 1' being controlled through a valve '17 which controls the chamber and the stem 19 of theflvalvc being fasca'sing' 7 float 20 so that but a certain tened to a amount of liquid can: enter the casing 8 from.

the ch amber.- the wick will lineor fuel which saturates the wick.

Thus-the air passing through A-deflector cone 21 is suspended from the I inner end of the pipe 7 for preventing the air' and gasoline vapors from entering directly into the pipe 7. I Lvalve 22 controls the flow. of themixt ure through the pipe 7 and'an u'pw'ardl bpening valve 23 normally held open by a spring 24, is arranged-in the pipe for. preventing back-fire from-the motor' adjusting the nuts. 15' ,on' the, rods, the shield' can be raised 1 or 'lowered to expose more or and. thus regulate the amount ofwick with which the air'will oomei-n Contact. The wick and'screen have their lowerends d -merged in the gasoline or other fuel in the passages4,.after passing.

pass through a wic'k cylinder 11 whichis p "'10 two-part shield 13, the parts of which are relation by the rods 14.-

beimpregnated with the gaso air passing through pregnated with the air passing in the pipe 7 the-cone 21 causing the vapor to mix with the air as it passes into the pipe. By' adjusting the shield, through means of the nuts 15, more or less of the-Wickwill be exposed so that the amount of gasoline in the air can be regulated. This device ,will prevent dust and dirt being drawn into the motor with the air, as the wick acts as a filter or strainer for the air. It also prevents dirt in the gasoline from entermgthe motor. 7 -'Ihe-device5 eliminates the use of needle valves and other complicated adjustments,

as the richness of the mixture can be regu-f lated by adjustingthe shield on the wlck; The valve 17, being alwayscovered =with gasoline, will be kept clean so that itvvill need no attention. By heating the asoline, it Will be made more volatile an the fumes from the hot I 0 starting. -.'There is no danger'of flooding the i gasoline can pass di-. rectly to, the Cylinders, thus making easier.

carburetor in starting and the device gives a better and finer vapor. than where the airsimply passes over the asoline. V

It is'thought from the foregoing description that the 'advanta es and novel features of my invention will e' readily apparent.

I desire it to be understood that'I may make changes in the.construction and in the combination and arrangement of the several parts, provided that such changes fall with 1n the scope of the appended claim.

What I claim is:'- s an internal combustion A carburetor for engine comprisin inner and outer casings spaced apart, a uel chamber in the outer 1 .casing and in communication with the innor casing, a float controlled valve for con: trolling such communicatwn, a cylindrical Wick in the inner casing and depending intoa the fuel therein, an outlet into the space defined by for permitting the suotlon in the chamber and around the inner casing and into the same and through the wick and an adjustable shield surrounding the.

wick and having anopening exposing-portions ofthe wick.

In testimony v RALPH D. PERKINS.

pipeextending thewick, means of the engine, to draw heated airthrough passages formed whereof I aiii x my signature.

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