US1097977A

US1097977A - Carbureter throttle-valve.

Info

Publication number: US1097977A
Authority: US
Inventors: William James
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-04-22
Filing date: 1913-04-22
Publication date: 1914-05-26
Anticipated expiration: 1931-05-26

Description

W. JAMES. GARBURETER THROTTLE VALVE. APPLICATION FILED APR. 22, 1913.

wizesses:

Patented May 26, 1914.

srarns PATENT OFFICE.

'WILLIAM JAMES, OF BROOKLYN, NEW YORK.

CARBURETER THROTTLE-VALVE.

.Specification of Letters JPatent.

Patented May 26, 1914.

Application md 'aprnaa 1913. seriaino. 762,858.' l

the iniux and-amount of gas mixture thatl Amay be supplied to explosive gas engines.

A great variety of such valves have been used, such as butterfly valves and the like, and I have found in practice thatthe form now to be described has many advantageous features over the types now in use.

Further, valves of the typefx disclosed in the accompanying drawings herewith have also been used but have been made entirely in the form of a casting and my improvement primarily consists in modifying the structure in such a manner as to make it more practical and economical in manufacture. v

In the accompanying drawings, Figure 1 shows a conventional type of carbureter having a portion of the gas outlet end broken away. Fig. 2 is one form of my device removed from the carbureter. Fig. 3 is a plan view of one of the shutter members. Flg. 4 is a plan view of a co-acting shutter member. Fig. 5 is a plan view of the valve housing with the valve or shutter members removed. Fig. 6 is a sectional view of the same -takeon on the line 5 5., Fig.- 5. Fig. 7 is a plan view of another form of shutter member. Fig. 8 is a sectional v iew of a modified shutter construction. And, Fig. 9 is a sectional view of a like type of shutter of the present type of construction. y p

In carbureters of the type shown in Fig. 1, under suction impulse of the gas engine piston, air is drawn 1n at the inlet openino' 1 in the direction of the arrow 1, and, a er passing down through the interior of the carbureter, comes forth from the outlet valve 2 in the direction of t-he arrow 2 mixed or saturated withv the proper amount of explosive gas or'ga'solene vapor. This explo` sive mixture is led thence to the cylinder of the engine for explosion. For the purpose of controlling the supply of gas to the said cylinder and for throttling the speed of the engine or shutting it down entirely, I have provided pinched between the saidfoutlet pipe 2 and the body of the carbureter 3, and connectmg and controlling the o-w of explosive mixture through the same, a shutter valve whlch is comprisedof a cast metal casing 4 and apair of stamped

sheet metal shutters

5 and 6. This valve is designed to be used with carbureters now in common use, `to be located adJacent thereto in the line ap-` plying the engine with explo-sive mixture, to replace the costly and bulky valves now used and 'toeconomize space where so to do is highly desirable, and to that end its-iattaching means are made to match those most common in such apparatus. To these. ends the valve casing 4 is provided with lugs 7 and -8 and therein bolt holes 9 and ,l0 which match corresponding bolt. holeson the lcarbureter and, generally, on the suction valve which (Fig. 1) is illustrated asset upon the valve casing 4,and, 'by its finished flange,

conining the shutters 5' and 6. Usually studs extend from the carbureter through bolt holes in lugs on the suction valve and in such cases the bolt holes9 and 10 of the casing 4 will merely center it in the pipe line and it will be pinched between the carbureter and the suction valve.

In order to provide suiiicient aggregate.

the casing 4 is made a squatty :bowl or truncated cone, with an orifice in its small end 15, to matchthat in the carbureter, a

rabbet 16, in its face 22 for the shutters, and to msure good ts and smooth flow. of explosive mixture its interior and faces are machined. A` slot 1 8 in the rabbet'16 provides for angularly xing the xed shutter,.6, and

for thep'lay of the arm 24 of the movable shutter 5. To one side of said recess 18 I rovide a radially extending lug 11, tapped or a. limit'sorew 12, provided with a set nut 13, and adapted to limitthe. motion/of orY position the movable shutter 5, to regulate 'the area of opening through the shut-ters.

Both

shutters

5 and 6 have sector-like matching openings 23 and

central bores

20 and 21,

for a pivot, 19, which connects them. The

movable shutter 5 has a radial arm 24 ter` minating in a pm holefor connection with the engine or governor, whereby 'to operate the valve; and a depending lug to coact with A the limit' screw 12, for adjusting the flow.

The fixed shutter 6 has a projecting seg-ff' ment, 1?,- to fix it 1n the casing with which it i is preferably a forcing t. To set the'ralv'e,

-- arm 24 ofthe movable shutter 5 is then suitably connected and the limit screw 12 adjusted.

It has heretofore been the custom in this type of valve to make the casting po-rtion 4e include, as an integral port-ion of the casting, the shutter portionshown as a separate .member 6, and it is obvious thatI when the

inner surfaces

14, 15 and 16 had to be machined and the apertures 23 in the shutter 6 had to be opened up, diliiculties wereencountered owing to the impracticable construction thereof. By providing the shutter member 6 as a separate element the same can be blanked out by punch press operation to an exact size, and thereafter forced into the machined casting as previously described.

There is shown in Fig. 9 a sectional view of a cast casing, as above described, the indices indicating the same component parts as shown in Fig. 1. Owing to the extra coring necessary in casting this piece, and the necessity of machining the interior thereafter, as well as facing and smoothing up the apertured valve portion thereof, 4it will be seen that this piece made as above described` is expensive. By my improved construct-ion, however, the Vcast-ing needs no core to cast itsown inte-rior, being self coring, but is more convenient-ly reached from the valve side for machining, whe-reas in the integral cast construction the interior must be machined from'the rear, whichis difiicultand expensive.

Another form embodying, my improved valve construct-ion is shown in Figs. 7 and 8 wherein the fixed shutter member 6 is substantially of the saine outline as the casing member 4, and the movable shutter 5 is of discoid form having an operating arm 24 thereon similar to arm 24 on member 5, Fig. 3. In this construction the movable shutter 5 is placed in the seat and the stamped sheet metal shutter member 6 is placed over the same and the assembled unit placed` between the carbureter 3 and the outlet pipe 2, to be thereafter locked in positipn by means of the previously mentioned s. This is a modification of the sheet metal shutter construction previously disclosed and is analogous to thesame, and permits of the same economy in manufacture.

Having thus described my invention, I claim:

1. A regulating shutter-valve adapted to be interposed and registered in the pipe line between a carbureter and an engine and comprising a hollow, truncated cone provided with an opening in it-s Small end adapted to register with the carbureter outlet and a slotted rabbet in its large end adapted to lix one and rockably mount the other shutter of a shutter valve; aperforated stamped-metal shutter fixed in said rabbet, and rockably mounted therein a perforated, stamped metal shutter; and means to fix said valve, in register, in said pipe line.

2. A regulating shutter valve adapted to be interposed and registered in the pipe line between a carbureter and an engine and comprising a hollow, truncated cone provided with an opening in its small end adapted to register with the carbureter outlet and a slotted rabbet in its large end adapted to fix one and rockably mount the other shutter of a shutter valve; a perforated stamped-metal shutter fixed in said rabbet. and rockably mounted therein a perforated, stamped metal shutter; a radial operating arm thereon; and means to fix said valve, in register, in said pipe line.

, 3. A regulating shutter valve adapted to be interposed and registered in the pipe line between a carbureter and an engine and comprising a hollow, truncated cone provided with an opening in its small end adapted to register with the carbureter outlet; a slotted rabbet. in its large end adapted to fix one and rockably mount the other shutter of a shutter valve; a radial lug adjacent to said rabbetl and a limit-screw therein; a perforated stamped-metal shut-- ter fixed in said rabbet., and rockably mounted therein a perforated, stamped metal shutter;.a radial operating arm thereon'and means on said arm to engage said limitscrew; and means to fix said valve, in register, in said pipe line.

4. A regulating shutter valve adapted to be interposed and registered in the pipe line between a carbureter and an engine and comprising a hollow, truncated -cast cone with its faces and interior machine-d and provided with an opening in its small end adapted to registenwith the carbureter outlet and a slotted rabbet in its large end adapted to fix one and rockably'mount the other shutter of a shutter valve; a perforated stamped-metal shutter fixed in said rabbet. and rockably mounted therein a perforated, stamped metal shutter; and meansl to fix said valve, in register, in said pipe line.

WILLIAM JAMES.

Witnesses:

HAROLD D. PENNEY, JOHN MORRIS.