US942886A - Internal-combustion engine. - Google Patents

Description

E. 6; B. CARTER.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED MAR. a, 1909.

Patented Dec. 14, 1909.

2 SHEETS- SHEET l.

Q jiweniws. fiEMK m+ mh INTERNAL GOlfB'USTION ENGINE.

APPLIOATION FILED MAX. 6, 1909 I, F L 1 I ggg g Emma-em @aa. 34

Millie 3]? fiflibhllKFQRD, ENGLAND, ASSIGNORS F BLACKSIQIE'E, 0F STAMFORD, ENGLAND.

\USTIQR ENE.

is injected chamber sion st.

compare ively low, 'a' v s n, army i to ell'ect 5111i on oi i; the OlJJECiJ 0 our or at or invention oein ro provide improved in ins for igniting the charges with eq il certainty whether such engii' or with a light loud According t" our for delivering into a chamber, bustion e ir niter at Stu ,4 predetermined tivcly c in the i are run W) h "3 th a full load.

ion we provide rate combustion 11 against e so that ed into the main me from the ex- 1 fire 1e, mein Whicn is cold he spray when a ch: combustion cl n iiery the a the ionizer v: "oly oi 'l-oux liary sprays are arrangezii r referred to e spray actor to the end of the main conihuslion CllnillbGl', and the igniter is fixed beside such hex etat suitable'ungle to receive he auxiliary spray and prdject the flame o combustion into the r t main spray the latter injected into the main combustion chamber.

To enable our invei'ition to he iuhy unc stood, we will describe the same by relei nee to the accompanying drawings, in which Figure l is an end view of a portion of on internal combustion engine provided ghettcrs Pelt nted Dec. ML, 19%

iii 5,3985, fieriai No. 81,676

drawn to a larger scale than Fig. 1, and,

Fi is a section on the line 3-3, Fig. 2. 4 is a plan of part or" the mechanism shown in Fig. 1.

a is the main combustion chamber of the engine cy 'nder c'the air inlet valve, and (i the exhaust alve, the said valves being operated in the ordinary manner from the half sneer shaft 6.

j is the spray box which is attached to the end of the combustion chamber a, and which, shown, has a chamber or jacket f through which. water is caused to circulate, for cooling purposes, formed upon it. This spray box is provided with a nozzle f, through which the main charge of oil supplied by the pump 9 through the pipe 9' is sprayed into the combustion chamber a; the said nozzle having arranged in conjunction with it the valve 72 which extends through an oil reservoir 7i forn'ied around it, and at its rear end is supported in a guide bracket 7L Fig. i, on the cylinder cover; this valve 72 is normally held upon its seat by means of a sting is, which at one end bears against the bracket if, and at the other end against a stop collar h on the stem. This valve is operated to open the nozile f by a cam i on the half speed shaft 2, the motion of the said cam being transmitted to the valve h through the medium of the rod 7', carried at one end upon a pivoted lever j, and at the other end sliding in afhole in a bracket 1' on the cylinder cover. On the rod j there is a tappet which cooperates with an arm 7; on the lower end of a spindle in which rocks in a socket in the bracket 7, and at its upper end curries anotherarm 7:, the forked end of which engages behind the collar 75* so that each time the rod j is moved longitudinally by the earn 5, the said valve h will he moved from its seat so that, the oil in the reservoir h will be ejected by compressed air entering through the pipe 70' and subsequently be returned to its seat by the sprin 7L Z is the whiter which is fixed to the end of the combustion chamber a andrrhich is connected with the interior'of the latter by a port Z, which is inclined so that it converges toward the line of discharge of the nozzle f.

Attached to the spray box 7 is the nozzle m for the auxiliary spray, which nozzle communicates at its rear end with the reservoir sround the valve stem h but ate somenor, that is to ay,

' what higher level as shown clearly in Fig.

of which lever is forked and bears against the collar a".

into the igniter Z a rod 2) of refractory material which will readily retain the heat is introduced, and on the nozzle n1, is provided a lip p which serves to divert the spray issuing from the nozzle on to the'uaid rod. The pipe g through which the liquid fuel is delivered by the pump 1 is connected to an annular port Q around the nozzle '11:, and which communicates with a space around the valve 17. through a series of holes so that the oil delivered by the pump into the reservoir 7t passes through the space 9, this space being so small that capillary attt action will retain the latter fullof oil, the

' surplus passing into the reservoir It. for the main charge. When the engine is running light the throw of the pump 9 is such that practically only sufficient oil will be delivered at each stroke tofill the space 9, the quantity of oil delivered by the pump being increased as the load increases, the surplus passing into the reservoir it. As shown in the drawing, this re ulation of the throw of the pump is effected in the following manthe plunger of the pump'g operated by a bell-crank lever 1 connected at one end to a crank pin r on the half speed shaft 0 and at the other end moving in a slot 1- inthe said plunger. Into this slot also depends a wedge s which is raised or lowered by means of the governor t in such a manner that under a; heavy load the consequent; decrease of speed causes the thick end of the wedge to be lowered into the slot and under a light load the thin end, the extent of the movement imparted to the plun er being increased or diminished according y.

\ The operation of the apparatus hereinbe- -fore described is as follows, that is to say, at or near the end of the compression stroke the spraying valves h, n are'opened so that the main spray combustion chamber a through the'nozzle f and the auxiliary spray into the igniter l through the nozzle m. In the igniter Z the spray will be ignited and the flame produced by combustion will be projected through the port Z and ignite the main charge in the combustion chamber. If, as before indi catcd, the engine is running light so that little or no oil is delivered in the main reserwill be delivered into the voir the spray will nevertheless be injttittt'illbtlftttfll cycle into the ignite! I so that the latter will be maiulaimal at a pnurtically uniform temperature notwithstandiug that for several cycles no charge is introduced into the main combustion chamber.

1! is a plate which we preferably employ attach d to the l)l lt)li (not shown) of the engine and serving to dellect the sprav issuing .lrom the nozzle 7. I

instead ot arranging both spraying devices in connect ion with a single spray box, each spraying device may be upon an independent spraying box. and in this case a separate pump is provided for each spraying device.

Although we have shown our invention as applied to an engine of the horizontal type, it is to be understood that our improvements are equally applicable to vertical engines.

Having now particularly described and ascertained the nature of our said invention and in what manner the same is to be performethwe declare that what we claim is 1. In -an internal combustion engine, the combination with the explosion chamber, and a separate ignition chamber having a flame delivery passage communicating with the explosion chamber, of fuel supplying means provided with separate passages com-1' municating with the explosion chamber and the ignition clminber,'and means for independently controlling said separate passages.

2-. In an internal combustion engine, the combination with the explosion chamber, and a separate ignition chamber having a. flame delivery passage communicating with the explosion chamber, of :tuelsupplying means provided withseparate passages communicating with the explosion chamber and the ignition chamber, and means for throttling the fuel supply to the explosion chamber without affecting the supply of fuel to the ignition chamber.

3. In an internal combustion engine, the combination with the explosion chamber, and a separate ignition chamber having a flame delivery passage communicating with the explosion chamber, of fuel supplying means provided with separate passages communicating vith the explosion chamber and the ignition chamber, and governor cons trolled mechanism for throttling the supply of fuel to the ex losion chamber Without att'ecting the supp y of fuel tothe ignition chamber.

4t. In an internal combustion engine, the combination with the explosion chamber, and a separate ignition chamber, having a flame delivery passage communicating with the explosion chamber, of fuel supplying means provided with separate passv es com.- municating with the explosion cham er and the ignition chamber, and provided Witha reservoir in communication with said sepvoir.

5 In an internal combustion engin,.the

L combination with the explosion chamber,

.and a sepa ate ignition chamber, communicating therewith, of a spray box located exteriorly to the said chambers, and provided .with a fuel reservoir and separate passa 'es from said reservoir to the said chambers, separate valves controlling said passages, a pump connected with said reservoir, and a governor controlling said pump.

6. In an internal combustion engine, the combination with the explosion chamber,

and aseparate ignition ehainbeiz,eoniniunieating therewith, of a spray box located exteriorly to the said chambers, and provided with a fuel reservoir and separate passages from said reservoir to the said chambers,

' saiil box having an annular port surrounding the passage leading to the ignition chambe! said )ort coininun-ieatii with said )assage, a fuel supply pump. connected with said port, and a governor controlling "saiel pump, separate valves controlling the fuel supply passages to' the said chambers, and

actuating mechanism for said valves.

7; In an internal combustion engine of the kind referred to, the combination with the.

device for spraying the charge into the main combustion chamber, and provided with a reservoir for the charge to be sprayed, of a device for spraying the auxiliary charge into the igniter chamber, the reservoir or I space for containing the auxiliary charge beingso proportioned and arranged that all oil in excess of that required for the auxili'ary charge tlows into the reservoir of the main spraying device,substantially as described.

Dated this 24th day of February 1909.

FRAN K CARTER. EVERSHEI) CARTER.

. 'itnesses:

'Jonx 1C. :BOUSFIELI),

C. (3r. REDFERN.

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