US1082237A - Explosive-engine. - Google Patents

Description

E. PROUTY.

EXPLOSIVB ENGINE.

APPLICATION FILED JAN. 9 190a.

Patented Dec. 23, 1913.

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I WiiG-Sf 210W E. PROUTY.

EXPLOSIVE ENGINE.

' APPLICATION IEILED JAN. 9, 1908. v 1,082,237. Patented Dec. 23, 1913.

8 SHEETS-SHEET 2.

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EXPLOSIVE ENGINE.

APPLICATION FILED JAN. 9, 1908.

. Patented Dec. 23,1913.

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24 GE? 47 Y E. PROUTY.

' EXPLOSIVE ENGINE. APPLiOAIION FILED mm, 1908.

Patented Dec. 23, 1913.

8 SHEETS-SHEET 4.

E. PROUTY.

EXPLOSIVE ENGINE.

APPLIGATION FILED JAN. 9, 1908.

1,082,237 Patented Dec. 23,1913.

8 SHEETS-SHEET 5.

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EXPLOSIVE ENGINE. APPLICATION FILED'JAN. 9, 1909..

8 SHEETS-SHEET 6.

Patented Dec. 23, 1913.

E. PROUTY.

. EXPLOSIVE ENGINE. APPLICATION FILED JAN. 9. 1908 I 1,082,237. Patented Dec.23,1913.

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' E. PROUTY.

'EXPLOSIVE ENGINE.

APPLICATION IILEDJ-AN. 9, 190a.

8 SHEETS-SHEET 8.

' Patented Dec. 23, 1913.

the selective igniting device, F

ENOCH PROUTY, OF CHICAGO, ILLINOIS.

EXPLOSIVE-EN GINE.

Specification of Letters Patent.

Patented Dec. 23,1913.

Application filed January 9, 1908. Serial No. 409,964.

T 0 a]! cc/mm it may concern:

Be it known that I, Exoon PROUTY, a citizen of the United States, residing at Chicago, in the' county of Cook and 'State of l llinois, have invented new and useful Improvements, in Explosive-Engines, of which the following is a full, clear, concise, and exact description, rE-terence being had to the accompanying drawing, forming a part of this specification.

My, invention relates to improvements in explosive engines.

Explosive engines, as heretofore constructed, have necessitated the provision of some means for starting the same by moving the pistons in order that they may take in a charge of explosive mixture. This has been accomplished generally by providing a crank arm by which the operator turns over the crank shaft, moving the pistons so that they will take in an explosive mixture and so that themixture will be ignited. Another way ofaccoinplishing the same result has been by the provision of some auxiliary power, generally in the form of fluid under pressure, which is admitted to the cylinders for initially starting the pistons.

The object of my present invention is to provide an engine which may be started without cranking and which may be started without the employment of any additional auxiliary mechanism.

I have illustrated, in the accompanying drawings, an explosive engine embodying one form of iny'invention.

In said. drawings, Figure 1 is aside eleva- -tion of a two-cylinder explosive engine; Fig. 2 is a sectional-view on the line 2-2 of Fig. 1;.Fig. 3 is a sectional view on the line 8-3 of Fig. 1; Fig. 4 is a transverse sec tional view on the line'44l-.of Fig. 3; Fig. 5 is an end elevation of the engine; Fig. 0 is a transverse section on choline (36 of Fig. 3; Fig. 7 is a sectional view taken on theline T-7of Fig. 6;-.Fig.- Sis a detail view of the sparlcigniting device; Fig. 9 is a detail of theexhaust and spark-igniting o'pcrating cams;"Fig. 10 is a detail view of 11 is a section of the feeding-device for the explore: mixture; Fig. 12 a section on the line 12 12 of Fig. 1l; and Fig. 13 is a section onthe line 1313 of Fig. 11L

, In the embodiment of my invention, as illustrated in the drawings, I provide a pair of cylinders 16 and 17 which may be ot'the usual construction, having the usual waterjacket 18 surrounding the same and mounted upon a suitable support 19. Each cylinder is provided with a piston 20 adapted to be connected with a crank 210i a crank-shaft 22 by means of a piston-rod 23. The pistons are of the usual construction and a detailed description thereof is unnecessary.

The engine illustrated is of the four-cycle type, and at the upper end of each cylinder there is provided a valve-chest 24, in which are arranged the exhaust and supply valves.

The supply valve 25 controls an inlet port 26, which communicates by means of a supply pipe 27 with the explosive charge feeding device 28, a detailed description of which will be given more fully hereinafter. The valve 25 is provided with a valve-stem 29 which extends through the valve casing and has secured thereon a .suitable adjustable collar 30, between which and the valve casing interposed a coiled spring 31 forholding the valve normally closed, the

suction of the piston, as the engine operates, being adapted to open" the valve.- The exhaust valve 32 controls a port 33 communicating with an exhaust pipe 34 leading from the valve-chamber and-adapted to-communicate with the atmosphere th'rouglra suitable niuli'ler, if so desired. The stem35 of the exhaust-valve extends through the casting forming the chamber, and is provided at its lower end with a suitable cam-face 36. A stop collar 37 is fastened on the stem, and between this collar and the casting is an ranged a coiled spring 39 for normally holding the valve 32 seated. The'exhaust valve is opened at the proper intervals by means of a roller 40 carried on an upwardly extending arm 4-1 of a lever 42, which is adapted to be pivoted upon a suitable stationary stud 6L3. This lever is adapted to be raised by a cam stat carried on the cam shaft 45 and adapted to bear upon a roller 4-6 mounted upon "the lever 42. I

The charge is ignited i1rtlie valve-chest by means of a suitable "sparking device which comprises a contact 47 which extends into the valve-chamber and at its rear end is supported in position by being passed-through by a rotatable shaft 48 whichextends through a. casting, l9 secured upon the exterior of the va .i-hamber casting. ".-'A pin or-lever 5O ext -,-'through the shaft- 48 and is conprojection on cylinder the bottom of the municateswith afpump nected by a coiled spring 51 with a suitable the casting, whereby the contact +15 is maintained at its lowermost position. The contact 47 is adapted to be engaged by a sparking-contact 52 carried upon the igniting rod 53. This rod extends dmvnwardly through the casting and is provided at its lower end with a collar 5i adapted to be engaged by the movable lever 4C2. At an intermediate point on the rod is pro vided a collaroo, between which and the casing is interposed a coiled spring 56 which tends to normally hold the rod in its lowermost position. The lever 49 is raised for moving the ignition-rod 53 by a cam 57, also mounted upon the cam-shaft. 45. This cam-shaft preferably extends thewhole length of the two cylinders, whereby the respective operating cams for the two cyl inders may be mounted upon the same shaft, and is provided at one end with a sprocket wheel .38, over which is adapted to pass a sprocket chain 59 to connect the same with a driving sprocket 60 mounted upon the crank-shaft 22. 1

i The explosive mixture is delivered to the by means of a mechanical feeding device, which is so constructed that the same sized charge of gasolene is delivered under all conditions by a positive delivery, as distinguished from being drawn out of the supply tank as heretofore, where a carburetor has been used. This mechanical feeding device comprises an in-take pipe 61, which is adapted to be connected with the two supply pipes 27 of thetwo engines, and which extends downwardly. The lower part of this pipe forms a hood 61 over the gasolene feeding device 62. The gasolene'feeding device 62 preferably comprises a cylindrical member which may take the form of a pipe bored out at. its upper end, to form an opening 3into which isinserted a suitable plug (5 1. Through the plug is adapted to extend a riser pipe 65, which communicates with a gasolene cup 66 formed in the pipe 62 atlug 64. The gasolene cup 66 is provided wit 1 a port 67 communicating with a supply i pe 6S and closed by a suitable valve 69, tie stem of which extends downwardly, and at its lower end is provided with a collar 71, between which and the bottom of the ipe 62 is interposed, a .coilspring 7 3 for hol ing the valve 69' normally closed. The valve-stem 70 is provided with channels 74L to permit a free passage of the gasolcnc up throu h the pipe '62 and into the chamber 66. i The supply pipe 68 comi 75, which is adapted to force the gasolenc into the in-take pipe 27. This pumpreferably takes the form of a hollow cylln rical member 76, which at its loweipend is provided with an opening into which is secured or screwed the end of the supply-pipe 68, and at its bottom with nor illustrated, that .is, bein an opening, into which is secured the end of a pipe 77 which extends to a suitable source ot' supply. A piston 7 8 extends down through the central bore of the cylinder 7 6, and the end thereof stops approximately at the bottom of the opening leading to the supply pipe 68. T his piston 7 8 is raised and lowered through the medium of a stiff arm 79, which extends downwardly along the side thereof and which is provided with a projection 80 adapted to be struck by a cam lever 81 mounted upon the cam- shaft 4,5 and operated by the cam 82. The arm is preferably pivoted to a crossarm 83, and at its lower end-is connected by a coiled spring 84 with a stationary member 85 mounted upon the frame of the engine, whereby the piston always tends to move downwardly. The throw or downward movement of, the piston 78 isregulated by a. threaded stop 86, which is adapted to en'gageflone end of the arm 83 and which may be adjusted to any. height desired. The supply tankis preferably arranged at a level above the level of the bottom of the pump'76, so that the gasolene level will always be maintained in the bottom of the pum 76 above the top of the supply pipe 68, a though any other means of. maintainin this level may be provided.

One of the cylinders, which may be preferabl the cylinder 16, at a point immediate above the top of its piston 20, when the iston is in its lowermost position, is provlded with relief orts 88, which communicate with the muiiler 89 of the engine. These ports are, preferably bored in the manbored strai ht through the cylinder, where y the ex loded gases may escape with, the leas 1e of. resistance. These ports are also preferably bored comparative yr small a. lurality of the same-being provided,an =are red round so, that the walls thereof will not tend to cut the piston rin s as they pass thereover. The purpose of .t ese parts will appear more ally in the description of the operation of the engine. 1 For supplying a sufiicient Quantity of gasolene to prime the engine, provide a small priming-pump 90,.which may be located at any convenient. position and communicates by means of a. pipe 91and branch pipes 92 and 93 directly with the valvechamber'of the cylinders. The pipe 91 is provided with a small ofi shoot 94,.having a suitable-cu therein in whicha small suply of gaso enemay be placed to be pumped into the cylinders by means of the pum 90. Due to the relative arrangement 0 the cams for openin of the exhaust valves, the piston of cylind er lS will always stop on eitherthe in-take or the compression stroke,

"and the piston of cylinder 17,will always stop on either the explosion or the eom pressionstroke, but the piston of cylinder osses '17 will never stop on the in-take stroke.

When-the engine stops with the piston of cylinder 16 leading this piston will be on circuit is opened. The piston in cylinder 17 moves downwardly on the explosion stroke, and, at the same time, the piston of cylinder 16 moves upwardly on the compression stroke. The momentum of the fly-wheel carries the piston of cylinder 16 over to the explosion stroke, but as no spark occurs the charge is not ignited. However, as the piston of cylinder 17 is now moving on the exhaust stroke, there will be no reand up again on the exhaust stroke.

sistanco to the pistons, and expansion of the compressed charge in cylinder 16' will aid the momentum in carrying the piston of cylinder 16 down on its explosion stroke, While the piston of cylinder 16 is moving on the exhaust stroke, the piston of cylinder 17 is -moving on its in-take stroke; and as the piston of cylinder 16 moves 011? the exhaust stroke and on the int-ake stroke, then the piston of cylinder 17 moves on the compression stroke. As the charge in the cylin der 1.7 is being compressed, it opposes suflicicnt resistance to prevent the piston from moving all the way over, and the slight expansion of the compressed charge will cause the engine to move slightly backward, thereby assisting in compressing the'partial ch a rge taken in by the piston of cylinder 16 on its iii-take stroke. As a matter of fact, theipistons slightly teeter "back and forth, and, of course, on each downward -on the in-take stroke and the piston, of

cylinder 17 will stop 'on ,the compression stroke, and be 1 11 pOS1t10l1 .lllU.St1'2lt(l in Figs. 2 and 3. Again,'we-will assume that the engine isrunning,-and to stopthe same,-

the sparkcircuit is opened. Thepiston in cylinder 16 will move .onits explosion stroke, the piston of cylinder l7moving at the same timeupward on its exhaust stroke.

The momentum will carry the pistons on around, and as the piston of cylinder 16' moves upward on its exhaust stroke, the piston in cylinder 17 will move downward on its in-take stroke, and then move upward on its compression stroke; with piston in cylinder 16 moving downwardly on 1ts' in-take" stroke. The piston in cylinder 1.7 has suiticient momentum to 'pass over and on to its explosion stroke. This brings the piston of cylinder 16 on its compression stroke, which stops the movement of the pistons, and they come to rest in this position,that is, Wit-l1 the piston of cylinder 17 having passed on ignited in cylinder 16, when the piston thereof is on the in-take stroke. Theexplosion of the charge drives the piston downwardly, moving the piston in cylinder 17 upwardly on its compression stroke.* The exhaustof the exploded charge in cylinder 16 escapes through the relief ports 88,'and as the. piston in cylinder 17 passes over to its explosion stroke, the charge" therein is exploded, and the engine runs in the usual manner. It will now be assumed that instead of the engine having stopped with the pistons of cylinder 16 on the in-takc stroke and the piston of cylinder- 17 on the compression stroke, it has stopped with the piston of cylinder 17011 the explosion stroke and the piston of cylinder 16 on the compression stroke. To startlthe engine the charge is ignited first in cylinder 17, driving the piston therein downwardly and moving the piston of cylinder 16 on itscomression stroke. As the piston of cylinder P i stances can be started by simply igniting the spark in the leading cylinder.

The charge to each cylinder is delivered by the feeding device, and'this device opcrates substantially as follows: The piston 78 of the pump 75 being raised by the cam, drops ofi' of the operating cam thereof, and under the influence oft-he coiled spring 84 drives downwardly with such momentum, that a supply of gasolene is forced through the supply pipe 68, raising the valve 69, and

the supply of gasolene shoots up'through the riser pipe 65 and into the in-take pipes-27 otthe two cylinder- 5.. As soon as the amount of gasolene which may be forced up by the pump 78 passes through the port 67 the valve 69 is immediately reseated and ,a further supply'of gasolene cannot be delivered, as the coiledspring 73 is of such'tension that .the suction of thepisto-ns cannot raisethe valve \Vhen'. the piston is moving on the in-take stroke, it draws the air up through the pipe 61, and at the same 'timedraws the supply ofgasol'enewhich has .been shot into the pipe 65 into the intake pipes 27, and as the air and gasolene aretakenin, the gasolene is thorough y mixed with 'the a r. As

a matterof fact',ithe pump 75 delivers'the gasolene with such force up into the in-take cylinder four-cycle type, the combination that it spatters against the walls with a plurality of cylinders, of a plurality then it, which materially aids in mixing the of intake ports, a plurality of exhaust ports, same with the air, which is drawn in through valves for said exhaust ports, and a valve the pipe 01 by the ii -take action of the piscontrolling mechanism for said valves so ions. arranged that the piston in one cylinder of In order, when starting the engine, that the engine when said cylinder is the leading the charge shall be first ignited in the lead cylinder when the engine stops, will stop on ing cylinder, I have provided a means for the intake stroke, said cylinder having a immually operating the ignition rods and port arranged therein to be automatically means for preventing this manually opop'ened at the end of the stroke of the piston erated means from igniting any but the to permit the escape of the products of coinleading cylinder. T he manual raising debu stion w ien a charge in said cylinder is cxvice comprises a rod or cross-bar 95, proplodedwith the piston on the intake stroke,

vid ed with supports 00 slidably mounted 1n to start the engine.

.eponding to the position of the crank of the .end of the rod 05 to be raised when the cord '(nin or stop is out of the path of the pin upright standards 97, whereby the rod or 2.1n an explosive engine, the combination 5 bar 05 may be raised or lowered. Coiled with a plurality of cylinders, of pistons opsprings 98 tend to hold the rod 95, in its crating therein, positively actuated means lowermost position, and a cord 99 is profor delivering the liquid hydro-carbon to yided which is adapted to connect with a the engine while the same is running, one of handle for raising the rod. As the rod is said cylinders having an exhaust port arraised it is adapted to engage the ends of ranged to allow the escape of the products the ignition levers t2, and move the same of combustion when a charge is exploded upwardly to operate the ignition rods. At therein with the piston on the intake stroke, each end of the rod, however, are provided to permit the explosion of a charge in the inwardly extending projections 100 and 101. cylinder which happens to be leading when ()n the cam-shaft 45 are arranged a pair of the engine is at rest, and the starting of the cams 102 and 103, the cam or stop 102 correengine without cranking.

3.1m an explosive engine, the combination with a plurality of cylinders having intake poi-ts, suction valves controlling said ports, pistons operating in; said cylinders, a rank shaft having opposite cranks connected to said pistons, one of said cylinders having an exhaust port arranged to allow the escape of the products of combustion when a charge is exploded in said cylinder on the intake stroke, charge ignition means, and a selective means for initially operating said charge igniting means.

4. In an explosive engine, the combination with. a plurality of cylinders having intake ports, suction valves controlling. said ports, pistons operating in said cylinders, a crank raised to operate the ignition rod of cylinshaft having opposite cranks-connected to deer 17. said pistons, one of said cylinders having an While I have throughout the specification, exhaust port arranged to, allow the escape referred to the operating oil as being gasoof the products of combustion therein, when lone, it will be understood that any other a charge is exploded in said cylinder on the, suitable hydro-carbon or' explosive oil may intake stroke, and selective means for ignit he used. Furthermore, while I have deing the charge of the leading cylinder. scribed my invention specifically with rela- In Witness whereof, I have hereunto subtion to a two-cylnider engine, my invention scribed my name in the presence of two wit- 1s applicable to any engine in which the nesses.

piston in cylincer 10, and the cam or stop 103 corresponding to the position of the crank of tlie piston in the cylinder 17-, so that when the piston of cylinder 16 is the leading cylinder the cam 102 is out of the way of the pin 100, which permits this 99 is pulled, operating the ignition rod of the cylinder 10, ()n the other hand, when the cylinder 1e the leading cylinder, the

10L while the cam or stop 1.02 is in the path of" the pin 100, preventing this end of the rod from being raised, and. the end of the rod which carries the pin 101 can only be cylinders are a multiple of two. T i

Having thus described my invention what EL OCH PROU'I I claim as. new and desire to secure by Let- Witnesses: tors Patent is: W. PERRY HAHN,

1. In" an explosive engine of the multiple- M. R. Roonronp.

comes of this patent may be obtained tor five cents each, by addressing the "Commissioner 0! latentl,

, Washington. D. G.

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