US1096482A - Carbureter. - Google Patents

Description

A. WINTON.

- GARBURETEE APPLICATION rum) MAR. 18, 1908.

1,096,482. Patented May 12, 1914.

OA'RBURETER. APPLICATION FILED HAB..18, 1908.

Patented May 12, 1914.

2 SHEETS-SHEET 2- F I f 8 State of Ohio,

ments to be understood. I

5 level, in a manner well understood by those 9 and 7.v Suitable adjustable valves 8 and 9 PATENT OFFICE.

ENGINE AND ALEXANDER. WINTOII, or cLnvELsnn, OHIO, assieuon ro wmron ass I muncrnamc'comrnuy, or cnsvsnann, onto.

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Specification of Letters Patent. Patent d M 2' 1914 Application filed March 18,1908. Serial No. 421,860. v I

T allwhgm o er I 10 and l1,'which have their inner ends in- ,Be it known that I, .ALEXANDER lVm'roN, tel'locking, as shown at 12 for permitting citizen of the United States, residing at i the actuating part 11 to have a limited Cleveland, in the county of Cuyahoga and movement independent of the part 10, have invented certain new I whereby the small throttle 13. is partially and useful Improvements in Carburetors, of opened before the large throttle 14; is moved. which the following is a specification, re fer- An operating crank-arm 15 is attached to once being bad therein to the accompanying the outer end of the actuating part 11, and drawing, a rod 16 is connected therewith, and the rod This invention relates to improvements in 16 will be connected with any desired opcarbureters, for explosive engines, and is of crating-handle (not shown) in a way well that type disclosed and claimed in my 00- j'understood. Attached to the outer end of pending application, Serial Number 389,264., the part 10 of the throttle-shaft is an arm in which a puddle or body of gasolene is 17 to the outer end of which one end of a maintained in the air assage for slowly contract-111g spring 18 is 'attached, and the moving volumes of air, at which effects a other end of the spring is connected witha spray-action of the gasolene for rapidlystud 19 projecting from the case or cover of movmg volumes f i the carburetor. A drain cook 20 is located The present improvement pertains cer- X at the'bottom of the chamber 1. tain details of construction which will be 1 Thus far I have described in a general fully described hereinafter, and particularly 5 way the Sub ect-matter of my said co-pendmg application, and will now describe my pointed out in the claim.

present improvements.

In the accompanying drawings, Figure 1, is a vertical, sectional view taken centrally? carbureter here shown, in: which a body or and longitudinally through one of the air I puddle of volatile fluid a is maintained for passages. Fig. 2, is a vertical, transverse, i slow speed and slowly-moving volumes of sectional view on the line 2-2 of Fig. 1. air, I find that when the motor is runnin Fig. 3, is a vertical, transverse, sectional l slow and the throttle suddenly fully opene view on the line 33 of Fig. 1'. Fig. 4, is a a momentary excess of gasolene occurs, by transverse, sectional view through the interreason of the sudden increase in the velocity locking joint of the throttle-operating rod. of the volumes of air passing by the body Fig. 5, is an enlarged detached perspective of fluid, thus drawing or pulling a consider view of the throttles and their operating able quantity of raw fluid up into the outer rod. 5 end 20 of the aspiration pipe or passage. The carbureter here shown is of the form J To avoid this momentary excess of gasolene shown and described in my said co-pending I provide means for relieving the high vacapplication, and the general construction uum formed by the suddenly-increased speed and operation need be described in only a v of the volumes of air, which I find prevents general way to enable the present improve- 9 this over-supply of fluid. The form here general, the carbureter comprises a in providing an auxiliary air passage-way I 21 which has its upper end 22 in open com- I munication with the exterior of the chamber 1, and its inner end in communication with the fluid outlets 6 and 7, through the medium of a cross-passage-way 23. With this arrangement, when the throttle is suddenly opened wide, and a high vacuum formed, a suflicient amount of air passes through the air passage 21 into the gasolene are adapted to regulate the flow of the fluid I conduit and largely to assist in atomizing pull on the gasolene, and therefore reduces the quantity of gasolene supplied, although the amount of air admitted 1s notsuflicient to effect the control of the motor. These In supply chamber 1 in which is located afloat 2 adapted to control a valve. 3, to maintain within the chamber 1 a predetermined fluid skilled in this art. Passing across this-chaml her 1 are the two curved air passages 4 and l 5, which have communication with the fluid I within the chamber 1 through the inlets 6 I I through the inlets, and the escaping sucked fluid. A throttle-operating shaft passes transverse the passages i i and, 5, and this shaft is made of two parts In the type of.

shown for accomplishing this result consists interrupts the vacuum reduce the high vacuum pull as described,

but after the sudden increased vacuum is over and the motor is running uniformly, then the fluid closes the lower end of the auxiliary air passage. In other words, the auxiliary air passage is not a constantly acting air delivery passage, nor is it in fact an air delivery passage to supply air to the gasolene, or to force the gasolene out of the fluid exit, but to the contrary it is only a vacuum reducer and operates spasmodically for the latter purpose only. This action,

as stated, is due to the small size of the air' passage, and to having its lower end sufliciently below the oil level and opening into a relatively large passage so that the specific gravity of the oil is suflicient to close the air passage when the motor is working uniformly.

I am aware that carbureters have heretofore had auxiliary air passages so located that the air passes constantly to the fluid exit, either to further carburet the air, or of such size and so located that it constantly assists in forcing the fluid out of the exlt.

My invention operates differently from either of the foregoing, as heretofore fully set forth, and for the reason explained. The arrangement is also found to prevent an excess supply of gasolene when the motor is run with full open, throttle, thus creating a high vacuum, and. especially in multiple cylinder motors. A vacuum relief is of especial value in that form of carbureters which have a maintained oil level either within, or substantially on a plane with the bottom of the air passage.

While I have here shown my vacuum relief in connection with substantially two carbureters formed by the two passageways, and two oil inlets, yet I wish it understood that the invention is capable of use with a single air passage and a single oil in et.

To prevent the supply ofgas to the motor being absolutely out off by the throttle, I provide it with a passage, notch or notches, which will permit a sufficient supply for the minimum speed of the motor when running free. When a motor is running with open throttle, the suction or passage of the air through the inlet pipe to the carbureter is clearly audible, and oftentimes very objectionable. To avoid this disagreeable noise, I provide a silencer or muflier for the inlet end of the air passage or passages and in communication therewlth. As here shown,

this mufiler comprises a hood 25, which embraces the inlet end of the air passage, and preferably has connected and movable with it the inlet end 26 of said air passage. The hood 25 is made larger than the portion 26 to form a surrounding air inlet passage 27, and the end of the inlet portion 26 is cut away at 28 for the passage of air between it and the inside of the hood, while the portion 26 has a projection 29 extending inward from its side wall to which the hood 25 is attached and supported by a screw or bolt 30. A. deadening lining of felt 31 (or similar material) is located at the inner side of the hood, and covering this lining is a very fine wire gauze 32, which prevents the felt from becoming shredded and any lint becoming detached and passing into the carbureter.

I have shown and described my present preferred form of the disclosed improvement, but I do not limit myself to the exact form here shown, for that may be varied without departing from the spirit and scope of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is z- The combination with a carbureter for explosive engines having an air passage, of a cup-shaped hood surrounding the inlet end of the air passage, said hood having a lining of sound-deadening material.

In testimony whereof I affix my signature in presence of two witnesses.

ALEMNDER WINTON.

Witnesses:

I. BAUGHMAN, EDITH Gannon.

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