US1088664A

US1088664A - Vaporizer for internal-combustion engines.

Info

Publication number: US1088664A
Application number: US73660712A
Authority: US
Inventors: Elden P Lamb
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-12-13
Filing date: 1912-12-13
Publication date: 1914-02-24
Anticipated expiration: 1931-02-24

Description

E. P. LAMB.

VAPORIZER PoR INTERNAL ooMBUsTIoN ENGINES.

APPLICATION FILED DBO. 13, 1912.

1,088,664, Patented Feb. 24, 1914 610; 70'; fc' N4 H14] 795x LEO 1' chamber or space 4t is in an extremely thin rrnri s'rnrns rafrinr orrion.

ELDEN P. LAMB, OF CAMDEN, MAINE, ASSIGNOR 0F ONE-HALF TO JOHN BIRD, 0F

ROCKLAND, MAINE.

VAPORIZER FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Feb. 24:, 1914.

Application filed December 13.1912. Serial No.` 736,607.

To all 'who/1i it /iirii/ concern.'

Be it known that I..l1i.iiii.\ I. Laim, a citizen oft' the United States, residing,` at Camden, Maine. have invented certain new and useful Improvements in Vaporizel's t'or Intcrnal-Conibnstiou llngincs. ot' which the 'Following is a specilication.

My present invention relates to iuiprovements in float feed or constant level cai-liureters or vaporizers 'for internal combustion engines.

The invention has unioneothers l'or `its objects to provide an extrcnielli simple construction, capable ot' being- @contini-cally produced and easily manipulated to secure proper mixtures loi' startingr and under vary ingr speeds and loads.

With these and other objects in view, thv

struction and arrangement and combination ot parts hereinafter described and particularly defined by the apiiended claims.

A carburetor embodyii'ipr my invention is illustrated in the acconipanyin,r drawing, in which- Figure l is a side elevation; Fig. i2 :is a `central vertical section; Fig. 3 is a sectional view of thc rotatable member l5. Fig. Il is a sectional elevation ol the valve, and Fig. 5 is a. sectional view ol' the upper part. of the vcarbnreter with the valve removed.

Referring,T by reference characters to this drawing, the numeral 1 designates the fioat container within which is located a float Q, which provides a constant oil .level in the float chamber. This float chamber has a conical bottom 3 provided with openings 3,

`which allow the oil to pass to a chamber al formed between the itnder side of said bottom 3 and a conical wall 5 of thin heat conducting metal carried by the removable bot `tom 6, which is connected to the container 1 by suitable means, as for instance machine screws 6a. This bottoniis provided with means suoli as nipples 7 and 8 h v which 'pipes may be connected for securing a cir culat-ion of heating tluid within the space between the cone 5 and the `bottoni ti, such fluid comprising hot. water steam oi exhaust gases. l? rom the construction thns described tilm or layer, and is readily heated bv the heating Huid below the cone.

Rising upward from Athe conical bottom 3 and preferably integral therewith is a cylindrical member Pi" having an interior valve receiving chamber 3C. Vthin this valve chaiiilier works the valve 7 having a conical lower end serving to regulate the amount ot h iulrocarbon which passes througrh the contracted t'nel opening 3d. The valve member 7 tits snugly in the lower portion ot' the chamber 3 and has a central fuel passage T provided with branch passages 'or ports T communicating with the conical lower portion ot' the valve chamber. The passage T in the \alvc member is designed to he placed in communication with the intake ot thc engine in the manner hereinafter described. so that the suction ot' the engine draws thc oil up through this passage, the

quantity depending on the vertical adjust invention includes the novel 'features ol conmeut ot* the valve. The upper portion of the valve chamber is enlarged to provide an annular space or channel, as indicated at 3", and additional ports or passages 7 place this annular space in communication with the oil passage Tk This annular chamber and passages 7 are intended for unvariiiblc air` supply, and for seein-nie,r a` rich mixture for starting purposes. The valve member 7 is provided at its upper end with an enlarged cylindrical member 8 and an interior centriilly arranged cylinder 9 having a bore axially in line with but larger than the passage T through which the rich mixture reltei-red to is drawn. This central member 9 joins the outer cylinder 8 by a bottoni flaring wall 9, and the cylinder 8 is provided wit 'i air ports l0 designed to cooperate 'with cor-y `side with cold air inlet ports designed to be covered and uinaivered by a movable member' lll, and with a hot air inlet )ort 14 by which hot air may be introduced in the manner common in carbureters. In order to secure the proper adjustments to vary the proportions ot' oil and air, the cylindrical ortion S is provided with a handle E,n by w ich it may be rotated to bring the ports 10 and 11 into or out ot register, and the said cylindrical member 8 is irovided nearA its u per end with an interna. screw thread Whici is engaged by corresponding lscrew threads on a rotatable. member 4 15 having a iiange 15 ,which is arotatably mounted between the CTI -moved in the same direction, the movement being to the left or in the direction of the lhands ofa clock, which raises the valve and gives a rich mixture. Now, with the engine running light or unloaded, if the lever` 15 is swung to the right it varies the position ofthe needle valve, that is, moves it down until the proper mixture` is secured. Thereafter the movement of lever 82l to the right opens the auxiliary air ports, and at the same time, lifts up the needle valve, giving the motor or engine more fuel.

I find that under some conditions, as for instance, in .carbureters or vaporizers for larger engines, that it is desirable to intro duce a heated Huid, such, for example, as

steam, directly into the mixture, and that it f is desirable to admit this in close proximity to the air passages 7c. In order to accomplish this, the wall of the valve chamber and the conical bottom wall of the hydrocarbon i chamber are provided with a passage 16, the part passingthrough the conical wall 3 being enlarged to form a valve'chamber 17, within which works aneedle valve 18 for controlling the passage of the steam or the like therethrough. This valve chamber 17 communicates by a port 19 with the heating chamber below the conical member 5A while the upper portion of the passage 16 is adapted to aline with the passage 2O in the valve, the arrangement being such that the passage 20 is in alinement with the endr of passage y16 only when the carbureter is adjusted'for work or, in other words, when the lever 8a is' moved to the right to admit a larger l,amount of hydrocarbon and air.

. A carbureter such as herein before disclosed maybe used for light hydrocarbons, such as gasolene, or for heavier hydrocarbons, such as kerosene, as the subjecting of the hydrocarbon to heat while in a widely spread-out and thin film enables its temperature to be raised tosuch a degree as to se- CureA effective vaporization and a ithorough combustion, even if the heavier hydrocarbon bev used. Furthermore, as -the wall of the l' valve chamber is integral with the bottom ofthe iioat chamber and the valve movesin direct contact with said wall, both said parts are\-heated vlby' the heating medium. The

result of this is that as the hydrocarbon is drawn through the small holes or passages in the valve it is additionally heated; and the air, passing through the annular air space and small air ports, is also heated so that'a mixture of heated hydrocarbon and heated air secured. A

In order that either gasolene or kerosene may be fed to the carbureter atwill, provi= sion may be made by which eiil'ier or both may be piped to the carbureter, it being deemed unnecessary to disclose any connection by which this may beydone herein. An important feature 'thvpres'ent vaporizer or carbjuietei is "that by this const-ruction the iiecessity 'for the ordinary throttle valve is avoided, as the speed of the en-l gine can be controlled entirelyunder working conditions by 'simply manipulating the lever 8a. The movementof Pthis lever to the rightopens the aifiitiliaiy air and increases the vfuel, 'thus giving more power 'or 'speed to the engine, wliil'ethemovement of the lever in the reverse direction simultaneously outs down the fuel and air, while maintain- ,i

ing proper proportions, thus acting as a throttle and reducing the 'power and speed of the'e'ngine,

I claim as my iuventioni;

1. A vaporizer for internal combustion engines having a valve chamberv with a valve seat, and fuel inlet port at its lower end, a

cylindrical fuel controlling valve fitting therein having a lower end c'oiperating with said seat, there being an annularspace adjacent said seat between the valve and valve 1 chamber, said valve^a.ing its central lonL tudinal passage to said air ing a closed bottom gt-udinal fue] pas`sa`gJ communicating by branch passages with said space, said valve chamber and said valve having also between them an air channel, and said valve having branch passages leading from said longi channel.

2. A vaporizer for internal combustion 4engines having a valve chamber with an enicc iin

larged upper portion constituting a coni stant air supply and a conical valve seat at its lower end v ith a fuel inlet, a cylindrical fuel controlling valve member fitting said valve chamber and having a reduced lower end provided with a conical portion fitting said seat, said valve member having a central longitudinal passage with branch passages leading to the space formed by said reduced portion and other branch passages leading to the space formed by said enlarged upper portionpf the valve chamber.

vaporizer for. internal combustion engines comprising a cylindrical valve casing having a fuel inlet at its lower end, a iiXed cylindrical sleeve above said casing having air ports, a movable cylindrical sleeve Within said fixed sleeve having corresponding air ports, said movable sleevehavand a space beneath-the same for constant air supply, a cylindrical valve member depending from said movable sleeve into the valve casing and having a longitudinal fuel passage, and air ports leading from said fuel passage to said constant air supply space.

4. A vaporizer for internal combustion engines comprising a cylindrical valve casing having a fuel inlet at its lower end, a fixed cylindrical sleeve above said easingr having air ports, a movable cylindri al sleeve within said fixed sleeve having' corresponding' air ports, said movable sleeve having a closed bottom and a space beneath the same for constant air supply. a cylindrical valve member depending from said movable sleeve into the valve casing and having! a longitudinal fuel passage, air ports leading from said fuel 'passage to said constant air s upply space. and means for simultaiuously imparting both rotary and vertical movement to said sleeve and valve member.

5. A vaporizer for internal combustion engines comprising a cylindrical valve casing having a fuel inlet at its lower end, a

fixed cylindrical sleeve above said casingI having air ports, a movable cylindrical sleeve within said fixed sleeve having corresponding air ports, said movable sleeve having a clos.d bottom and a space beneath the same for constant air supply, a cylindrical valve member depending from said movable sleeve into the valve easingr and having a longitudinal fuel passage, air ports leading from Said fuel passage fo said constant air supply space, means for imparting both rotary and vertical movement to said sleeve and valve member, and means for imparting' vertical movement to said sleeve and valve member independently of the movement iniparted by said first named means.

6. A vaporizer for hydrocarbon engines comprising a cylindrical valve casing having a fuel inlet at its lower end. a fixed cylindrical sleeve above said casing having air ports, a n'iovable, cylixulrical sleeve within said fixed sleeve having coacting air ports, said 'movable .slecvc having' a closed bottom and a space beneath for constant air supply a valve member for depending from said movable sleeve info said valve casing, and having fuel and air passages. means for rotating said movable slccvc. an adjusting sleeve rotatably held in fixed bearings and having inclined rib or screw connections with said movable sleeve, and means for turning said adjusting' sleeve.

7. A vaporizer for internal combustion engines comprising a mixing chamber having means for supplying air thereto, a pair of members of substantially cone shape spaced to admit a film of hydrocarbon therebetween, the upper of said members having an atomizing openingr for injecting the combustible fluid into said chamber, means for admitting heating fluid to the interior o the lower member, and means for injecting" a heated Huid other than air into said mixing chamber, substantially as described.

S. A vaporizer for internal combustion engines comprising a mixing chamber having means for supplying air thereto. a pair of' nembcrs of substantially cone shape spaced to admit a film of hydrocarbon therebetween. the upper of said members having an atomiziirr opening for injecting the combustible fluid into said mixing chamber, means for supplying the heating fluid to the space ben xath the lower cone shape member,

land a passage for conducting the small quantity of heating fluid to the said mixing chamber.

9. i vaporizer for infernal combustion engines comprising a valve chamber having a fuel admitting opening, a valve working in said chambe` and having' `a central longitudinal passage therein` there being an annular air passage around a portion of the said valve and said valve having air passages leading l'rom said longitudinal air passages to .said annular chanibc' and said valve having also an aufviliary passage in proximity to said air passages. and means for supplying a healed fluid other than air to said auxiliary passage.-

l0. vaporizer for infernal combustion engines comprisingl a )nixing chamber having means for supplying air thereto, a pair ol' members of .substantially cone shape4