US1077386A - Gas-engine starter. - Google Patents

Description

APPLICATION FILED AUG. 20, -1.910.

E. D. BMGS.v GAS ENGINE STARTER.'

' 1, 1, 1" represent the cylinders,

`ignited in the usual EDWIN D. Bancs, or MEWAUKEE, WISCONSIN.

GAsnNGINn STARTER.

To all 'whom 2f may concern:

Be it known that I, EDWIN D. BANGs, a Citizen 'of t-he United States, and resident of Milwaukee, in the county of Milwaukeetand State of VVisconsin, haye invented certain new and useful Improvements in Gas-Engine Starters; and I do hereby declare that the following is a full, clear, and exact description thereof. i

The object of my invention is to provide a simple, economical'and positively actuated automatic starter for multiple cylinder gas engines, its construction and arrangement being such that an auxiliary charge of carbureted air is maintained under valve-con-v trol,'having actuating mechanism in timed relationy with motion of the engine, whereby said charge is admitted to that engine cylinder the piston of which is` in a position just past its highest compression point, and is manner to impart initial motion to the engine.

lilith the above object in view the invention consists in certain peculiarities: of construction and combination of parts as fully setforth hereinafter with reference to the accompanying drawings and subsequently claimed.

The drawing illustrates a diagrammatic view, partly in section, of an engine equipped with a starting apparatus embodying the features of my invention.

Referring by characters to the drawings,

2 the .pistons V and 3 the crankshaft of any standard type of internal combustion engine, the pistonsj,'y

in this instance three in number, being cone nected in the usual manner to the crankshaft by pitmen ll, it being understood that the crank portions of the shaft are set equal distances apart with reference to the axis thereof. v

6 represents a valve-casing provided with an upper chamber 7 having a series of ports 8 each communicating with a separate lower compartment of the casing, the port-s being normally closed by spring-controlled valves 9 having stems 10 that are suitably guided in the casing, the lower ends of which stems are arranged to be engaged by cams 11 that are carried by an arbor 12 journaled in said valve-casing. i

The arbor, as shown, is provi/ded with a large sprocket-wheel 13 that is in link-belt connection with a sprocket-pinion le, which Specification of Letters Patent.

'sprocket-pinion is secured to the crank- Patented Nov. et, i913.

Application filed Apgust 2o, 1910!. serial' no. si'aoea my invention as the arbor vmay be geared in any other suitable 'manner to the engine shaft or to the timer not shown), the essential feature in connection with the drive being that the arbor should rotate in timed relation with the engine crank-shaft in proportions of one to two. p

ach port 8 is connected to the compression vchamber 15 of one of the series of cylinders by a pipe or duct 16, these I ing 'provided with check-valves 17, whereby they are controlled. A closed reservoir '18 is also provided, into the bottom portion of which reservoir is fitted a wire screen 18a that covers a layer ofmet-allic shavings 19,

other Volatile oil placed in the bottom of the reservoir from time to time through a filling nipple 27. This reservoir thus equipped comprises an auxiliary carbureter which is conneeted to the compression chamber 15 of one ofthe cylinders by a pipe or duct 21, the latter -being provided with a check-valve 22 ducts be- 'there being a small quantity of gasolene or and a controlling cock 23. The reservoir is also connected by a pipe or duct 2i to the chamber 7 of the valve-casing 6, the said pipe or ductfbeing also provided'with a check-valve 25 shown.

From the foregoing description it will be seen that there is the chamber 7 for each engine cylinder, it being understood that the number of cylinders and valve-controlled ports 'are immaterial to the operation of the starter and that the valve-casing convenient point relative to the engine as well as the reservoir 18. Thecontrolling valves 23 and 26 of the ducts 24: and 21,

however, should be so placed, if the envine'- is used in connection with a self-prope led vehicle, that theyare accessible to the operator. It should also be understood that the engine-is equipped with any standard type of spark ignition mechanism, which mechanism forms no part of my invention.

In the operation of my starting apparatus,

should the engine be in motion and the operator desire to set the starter, the cock 23 would be opened, this and contiinlling cock`26 as:

a valve-controlled port in 6 may be located at any cock, being in the dlict that communicates with the iirst cylinder 1b and the reservoir, would thus open said duct and 'as-the engine rotated the compressed charges of cylinder lb would be iforced into the reservoir' 18 until the indicator gage carried thereby showed the desired pressure therein. The operator would then close cockl 23 andthe carbureted air which had been pumped therein from the cylinder 1b would be further enriched by the oil contained in the bottom of said reservoir. Valve 26, it

should be understood, is at this time also closed and all three of the engine cylinders will now be operating as under Ordinary conditions. v Should the engine come to rest and the operator desire to start the same, controlling cock 26 would be opened, thus permitting a vcharge of compressed carbureted air from the reservoir to till chamber 7 'of the vali/erasing. A'Owing tothe fact that the arbor cams are so disposed 'about said arbor that one of the valves 9 is at all times open, this charge of carbnreted air would ind its way through the open port 8, and, as shown in the diagram, the carbureted air in this linstance would pass from the open portto the rst cylinder 1b and, being under compression, the charge would be exploded by closing the spark circuit, not shown, ,which circuit isy closed just after a full charge has passed the check valve 17, whereby back firing into that por-1I l tion of the charge remaining in the pipe 16 and valve casing is avoided. Owing to the timed relation between the cam-carrying arbor 12 and the crank-shaft, when any one of the ports 8 are opened, the piston of the engine cylinder to which it is connected is just past its highest point and hence when the explosionl takes place the engine isA copies of this patent may be on: i;

mi for are cents each, by Washington, D. G.

started, after which the operator I- closes i ders, a piston reciprocative in each cylinder,

and a crank shaft having the cranks thereof in rod connection with the pistons lthe com` bination of a starting apparatus comprising y a casinghaving an upper chamber and sepa rate lower compartments, self-seating valves controlling ports by ,which communication is established between saidchamber and compartments, an arbor provided with cams by which toactuate said valves, gearing connecting the' crankshaft and arbor, a reservoir in checkwalve munication with the compiession chamber of one of said cylinders and with the upper chamber of said casing, means for cutting 'oi the reservoir' from said cylinder and chambenad a check-valve controlled duct leading from said casing-compartments to the aforesaid cylinders.

In testimony that I claim lthe foregoing I have hereunto set my hand at Milwaukee in the county of Milwaukee and State of Wisconsin in the presence of two witnesses.

EDWIN D. BANGS. Witnesses:

Y' Downer N. E. OLIPHANT.

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