US663755A - Engine. - Google Patents

Description

Patented Dec. Il, |906.

J. E. HARTwELL.

E N G N E.

(Application med my 25, 1900.)

(No Model.)

Y lll/lll.

W/TNESSES.' MW n@ A TTOHNEYS am., paens co. nuoro-umn.wmummomac.

I. 663,755. Patented nec. |900.

J. E. HARTwELL.

ENGINE.

(Application 'led Kay 25, 1900.)

jv@ W BY wrs TH: Noms Farms co, PHoroLxwa. vmsmNoToN, n -1 No. 663,755. Patented Dec. n, |900.-

J. E. HARTWELL.

ENGINE.

. (Application led May 25, 1900.) 4 (No Model.) A 4 Sheets-Sheet 3..

Ow@ By 77%s/Eysr Patented Dec. Il, |900.

.1, E. HAnTwELL.

ENGIN E.

(Application led may 25, 1900.)

4 Sheets-Shut 4.

(No Model.)

mm A A77 NEYS NrTnD STATES,

arnt NICE JACOB ERASMUS HARTWELL, OF TROY, MONTANA, ASSIGNOR OF ONE-HALF TO FRED B. OALLOW AND WILLIAM D. SAVAGE, OF SAME PLACE.

E N G l N E.

SPECIFICATION forming part of Letters Patent No. 663,755, dated December 11, 1900.

Application filed May 25, 1900. Serial No. 17,969. (No model.)

To all whom t may concern.-

Be it known that I, J noon ERASMUS HART- WELL, a citizen of the United States, and a resident of Troy, in the county of Flathead and State of Montana, have invented a new and Improved Engine, of which the following is a full, clear, and exact description.

My invention relates to engines working by internal combustion or explosion, and has for 1o its object to increase the power of such engines and to provide at the same time improved means for cooling the explosion-cham ber and adjacent parts of the engine. This result I obtain by the injection of water,which not only has a cooling effect, but by the generation of steam increases the motive power of the engine. Y

The invention consists in the novel coustruction and arrangement of parts employed zo for securing the above-indicated result and will be described in detail hereinafter with reference to the accompanying drawings, while the scope of my invention will be de fined in the appended claims.

In said drawings, Figure l isa face view of a rotary engine embodying my invention with parts in section on line l l of Fig. 2. Fig. 2 is a side elevation of said engine with parts broken away and others in section. Fig. 3 is 3o a detail of the explosion-chamber and its connections with parts in section. Fig. e is a sectional plan on the line 4 4 of Fig. 3. Figs. 5 and 6 are sectional elevations on lines 5 5 and 6 6, respectively, of Fig. 3. Fig. 7 is a sectional elevation on line 7 7 of Fig. 2, and Fig.

8 is a plan showing the application of my invention to a reciprocating steam-engine.

` The rotary engine shown in Figs. l, 2, and 7 is of the type which forms the subject-matter of the Letters Patent No. 618,347 granted to me on January 24, 1899. Brieily described, this engine comprises a shaft A, journaled in bearings B and in a casing or cylinder O, the shaft carrying a fly-wheel or pulley D, a disk E with a camgroove E', and within the casing or cylinder C a disk or plate F, carrying wings or pistons F', fitting tightly into the annular working chamber C of the cylinder C. At the top of said chamber is the sliding 5o abutment G, which is worked by means of a rod I-I, having a projection H, which enters the cam-groove E'. The abutment is thus alternately moved into and out of the Working chamber C', according to the well-known operationofrotaryengines of this class. C203 are the ports for the admission and exhaust of the driving agent, and as the engine is reversible their functions are interchangeable.

I and I are the corresponding inlet and outlet pipes. So far the construction is substan- 6o tially the same as in my above-mentioned patent. 1

The parts constituting my present invenA tion are as follows: J is an igniter or torch, consisting of a tube open at its top and closed at its bottom and connected by a pipe K with a tank K containing gasolene or other fuel, the connection being controlled by a valve K2.

J is a guide-channelf for the insertion of a match to light the gasolene, and J2 is a vent. 7o Upon igniting the fuel the upper end of the torch becomes hot enough to vaporize the oil or other explosive fuel and to explode it, as more fully described hereinafter. The upper part of the torch J issurrounded by a casing L, forming an annular chamber L', provided with a water-jacket L2 to prevent it from getting too hot. Water is supplied to the said jacket through a branch pipe M from a main pipe M, While the water leaves the jacket 8o through the pipe M2. The water is fed by a single-acting pump, the piston N of which works in a cylinder N to first draw in the water through the suction-valve l 3 from the suction-pipe M4L and then force it through the 85 delivery valve M5 into the main pipe M. Water is thus injected periodically. If desired, the pipe M may receive its Water continuously from the mains, and thus be independent of the pump. The water injected 9o by the piston N into the pipe M s deflected downward in greater or smaller quantity by a throttle-valve O, capable of adjustment by means of a handle O. rlhe Water thus deflected reaches a pipe P, leading downward to the pipe T and containing a check-valve P. Any Water not deflected by the valve O passes through the extension M6 of the pipe M3 to waste or back to the Water-supply.

The piston N is operated by means of a Ioo swinging lever Q, pivoted at Q' and moved by a slide-bar R, having a lug R', projecting that the expansive power of the motive agent l rod X, connected with the crank U of the relwhich-.has been exploded by the heat of the vS4 prevent the 'explosion from spreading to into the cam-groove E'. The slide-bar R has l a slot Where it receives the lever, so that in 1 starting the engine the lever can be operated manually independently of the slide-bar. This lever Q also works in a manner similar to the piston N and the piston N2 of the fuelpump, the cylinder of which, N3, communicates with the fuel-supply pipe S, having a suction-valve S, and with the fuel-delivery pipe S2, havingathrottle-valve S3and a checkvalve S4, said pipe being arranged to discharge the fuel into the explosion-chamber L. Any fuel which is not forced past the Valve S3 will open a valve S5 and return to the fuel-supply through 'the return-pipe S6. It will thus be understood that fuel (gasolene or the like) will be injected periodically into the explosion-chamber L in quantities which may be varied by a proper adjustment of the throttle-valve S3. At the same time water is injected into the pipe T in quantities varying according to the position of the throttle-valve O, and this water mixes with the vaporizc'd fuel torch J. The explosion heat first vaporizes the water and then superheats the steam, so

is greatly increased. The check-valves P' and and injuring the water-supply pipe and the fuel-supply pipe. The driving agent linds its only escape through the pipe T, which comin'unic'ates with one or the other lmeniber of a cross-pipe T, according tothe position of the reversing-valve U. ln Fig. 6 the pipe T communicates with the left-hand member of the y,cross-pipe T and the driving medium is accordingly deflected into said member. The i two sections or members ofthe cross-pipe T communicate permanently with the vcorresponding inlet and outlet pipes I and I. With the valve U in the,position shown in Fig. 6 the pipe l is the inlet-pipe. The driving medium therefore passes through 'said pipe into lthe Working chamber C', operating the pistons F/ in the well-known manner. The number of explosions corresponds to the number of times a piston passes the inletport-that is, with two pistons there will be two explosions per revolution. The exhaust takes place through one of the apertures G2 or C3, as the case may be, the corresponding pipe I or I' and a valve V, which controls the connection of the said pipe I or I' with each of the exhaust-pipes W. Said valves V Work in chambers V and are operated bya sliding versing-valve U and with a reversing-lever Y, pi'voted to a support Z, and having the customary arrangement for locking it in position-viz., a Acatch-rod Y', pressed by a spring Yfa into notches Z in the support.

tBy reference to Figs. 5 and 6 it Will be understood that the valves U V are so connected that the exhaustpipe W is closed on that side of the pipe T/ which at the time communi- -ner of reversingit will now be readily understood without further explanation.

In Fig. 2 I have shown the explosion mechanism at a relatively considerable distance from the working chamber, so as to better illustrate the several parts. In practice, however, the pipes I Il will be made as short as possible-that is, the explosion-chamber will be located in the proximity of the working chamber, so as to avoid loss of heat by radiation and to reduce the waste space.

To 'adapt the invention to an engine of the reciprocating type, all that is necessary is to operate the reversing-valve U and the eX- haust-valves V automatically, and this may be readily 'done by substituting for the lever Y a rod y, driven by the engine, for instance, by means of an eccentric y'. q is the crosshead, connected with the pistons of the fuelpump'nand of the water-pump n' and driven by a rod n2 from the eccentric n3'. m4 is the suction-pipe for water, and As the fuel-supply v pipe. j The other parts are the same as hereinbefore described, and may be readily identified, as they bcarthe same reference-letters, only small letters are used instead of capital's.

Having thus described my invention, I 'claim as new and desire to secure by Letters Patent- 1. The combination of the tubular torch open at the top and having an interior burner, a casing surrounding the upper end vof the torch and forming an explosion chamber therewith, said casing being provided with a fuel-inlet leading to the explosion-chamber, a cylinder containing aworkingchamber connected with said explosion-chamber, a waterinlet located in the connection 0f said two chambers, and means for injecting water and fuel respectively through said inlets.

2. In an engine, a casing or cylinder -containing a working chamber, an igniting tube or torch closed at the bottom and open at the top 'and having an igniting-opening at its lower end, an explosion-chamber surrounding the upper end of the tube or torch, and havinga Water-jacket, a connection between the explosion-chamber and the 'workingv chamber of the cylinder, and means for admitting water into the said connection, substantially as described.

3. In an engine, a casing or cylinder containing a working chamber, an igniting tube or torch open at the top and closed at the bottom and having igniting 'and vent openings 'at its lower eud-7 an `explosion-'cha'mber surrounding the upper end of the tube or torch, and having a water-jacket, a 'connection between the explosion-chamber and the working chamber of the cylinder, a pump, 'and a connection between the pump and the connection connecting the explosion and IIO working chambers and the water-jacket, substantially as described.

4f. The combination of the tubular torch having its upper end open and its lower end closed and provided with an interior burner, the casing surrounding the torch and forming an explosion-chamber therewith, a cylinder containing a working chamber connected tively into said channels, and additional pipes or channels for receiving that portion of the water and fuel which does not pass through the throttle-valves.

In an engine, a cylinder having ports adapted to serve interchangeably as inlet and outlet for the motive agent, an explosionchamber, pipes leading from the ports of the cylinder, a valved pipe connecting the said pipes, a connection between the valved pipe and the explosion-chamber, a Valve-chamber connected with each pipe, a valve in each chamber, and means for simultaneously operating all the valves, substantially as described.

7. In an engine, a cylinder having ports adapted to serve interchangeably as inlet and outlet for the motive agent, an explosionchamber, pipes leading from the ports of the cylinder, a pipe connecting the said pipes, a valve in said pipe, a connection between the explosion-chamber and the said pipe, a valvechalnher connected with each pipe, a Valve in each chamber and connected together, and a connection between the said valves and the first-named valve, substantially as described.

8. In an engine, the combination with a cylinder ha\\'ingl a working chamber, of a torch constituting an igniting-tube, an annular eX- plosion-chainber around the upper end of the ignitingtube, and having a water-jacket, a fuel-supply for the explosion-chamber, a connection between the explosion-chamber and. the working chamber of the cylinder, a water-supply connected with the water-jacket of the explosion-chamber, ,and with the connection between the explosionvand working chambers, and a valve for controlling the amount of water passing to said connection, substantially as described.

9. In an engine, the combination with a cylinder having a working chamber, an explosion-chamber, a fuel-supply for the explosionchamber, and an igniting-tube for the eXplosion-chamber, of a connection between the explosion-chamber and the working chamber, a water-supply pipe, a connection between the water-supply pipe and the connection connecting the explosion and working chambers,

a check-valve in the last-named connection,

and a deflecting-valve alsoin said connection, substantially` as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JACOB ERASMUS HARTWELL.

Witnesses:

KATE REYNOLDS,

RoBT. GREGG.

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