US830270A - Gas-engine. - Google Patents

Description

ING. 830,270

PATENTIED SEPT. 4, 1906.

R. WILLETTS. GAS ENGINE.

APPLICATION FILED MAY 25, 190v5.

2 Eurams-SHEET 1.

Girnmeo;

PATBNTED SEPT. 4, 1906.

R.V WILLWJIS.I GAS ENGINE.

APPLIOATION FILED MAY 25. 1905.

2 SHEETS-SHEET 1111611 For c7?. lffella.

Ui TEDl STATES PATENT OFFICE.

GAS-ENGINE.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed May 25, 1905. Serial No. 262,195.

To all? whom, t may concern:

Be it known that I, REUBEN WILLETTs, a citizen of the United States of America, residing at Butler, in the county of Butler and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Engines, of which the following is a 'specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and' ation of the pistons of my improved engine` can be obtained, and by this construction and operation I am enabled to greatly increase the efiiciency of gas-engines and at the same time-provide a strong, durable, and inexpen-l sive engine. In connection with my -improved engine I employ electric-spark ignit- .ers and have devised and put into practice novel means for automatically firing each' cylinder of my improved engine at predetermined times.

Vith these and many other objectsinview, which will more readily appear as the nature of the invention is better understood, the

same consists in the novel construction, combination, and arrangement of parts, Which will be more fully described, illustrated, and claimed hereinafter.

The essential features of the present invention involved in carrying out the objects above specified are necessarily susceptible to structiual change without departing from the scope of the invention; but the preferred embodiments are shown in the accompanying drawings, in'which- Figure 1 is a top plan view of my'improved engine, partly broken away.

Fig. 2 is a horizontal sectional view of the cylinders of my improved engine, Fig. 3 is an end view of one ofthe electric-spark igniters. Fig. -4 is a' crosssectional view of the intermediate head of the cylinders, illustrating one of the igniters Fig. 5 is a verticalsectional view of an air and gas valvethat may be employed in connecinders. -5 and 6, and in said tion With my improved engine. Fig. 6 is a top plan view of the same. Fig. 7 is a cross-sectional view, taken on the line a: a: of Fig. 1,

illustrating an air-valve preferably used in connection with myimproved engine;` and Fig. 8 is an enlarged sectional view of one of the collars employed in connection with the connecting-ro s.

Referring to the accom anying drawings, 1 designates a. suitable ed-plate carrying bearings 2 2 fora cranked drive-shaft 3.

4 4 designate frames carried by the bedplate 1, which support cylinders 5 and 6 and serve functionally as guideways for connecting-rods 9 and 10, these connecting-rods being mounted within the frames 4 4 upon each side of the cylinders and in planes parallel with said cylinders. The ends of the connecting-rods 9 and 10 are provided with cross-heads 11 and 12the cross-head 12 being provided Witha crank-pin 14, adapted to be connected to the crank 15 of the drive or driven shaft 3.

In Figs. 2, 3, and 7 of the drawings I have illustrated the construction-of the cylinders 5 and 6 of thesengin'e, and referring to said ii'gures 16 ldesignate annular enlargements formed upon the confronting ends of the cylenlargements I provide annular compartments' 17. 17. The cylinders 5 and 6 are connected together. by an intermediate head 18, having afpartial annular passage 19 formed therein, which es-- tablishes communication between the annularcompartments 17 17 of the enlargements 16 16, .these annular compartments serving as Water-jackets for the cylinders of my improved engine. A suitable Water-su ply may' be connected lto the water-jac ets.

The annular passage 19 is intersected by a radially-disposed 'peripheral projection 20, in which two horizontally-ahmed openings 2O 20are formed, and in said openings .are mounted the electric-spark igniters elnployed to fire the cylinders 5' and 6 of the engine.- One of these'igniters is illustrated in Figs. 3 and 4 of the drawings, and each igniter consists of a headv 21, carrying electrodes 22 and 23. The electrode22is stationary and is insulated from' the hle'adfjl and is connected to a suitable source of'electric energy. The electrode 23 is in this embodiment fixed upon a revoluble shaft 24, which is also insulated from the head 21 and is connected to a suitable'source of electric energy. As this part ofl my igniter is com- IIO ` mon to igniters heretofore devised, I'have not deemed 1t necessary to det-ail the construction of these parts or to illustrate the source of electric energy,v as a conventional form 4of battery or generator can be readily employed. My linvention in connection with the igniters resides in providing the outer end of the shaft 24 with a depending arm 25, to the lower end of which is pivotally connected a inger 26, having a beveled surface 27 and anupwardlyextending arm 28. The inger26 is normally held in alinement with the arm byl a spring 29, secured to the depending arm 25, this* spring normally holding the arm 28 in en-j gagement with the arm 25. Another spring 30 is employed to normally hold the arm 25 in engagement with astub-pin 31, carried by the lhead 21. The spring 30 is supported by'an outwardly-extending bracket 32, also carried by the head 21. In connection with the cylinders 5 and 6 the igniters are mounted in the openings 20 20 to rire saidA cylinders, one igniter being mounted. upon each side of the transverse wall or partiti-on 33 of the intermediate head 18, whichlserves to separate the cylinders and their respective igniters. The one side oi each cylinder is provided with a longitudinally-disposed rib 34, the outer side of which extends tangential tothe cylinders, and in said ribsl I provide longitudinally-disposed byaths and 36, which communicate with t cylinders 5 and 6 by ports 37, 38, 39, and 40. The ribs 34 34 are provided with verticallydisposed passages 41 41, which communicate with the by-paths 35 and 36 in vertical'linement with the'perts 38 kand 39. :In ,con-

structinglthe ports 38 and 39, which serve as y air-inlet ports, I referably so construct the cylinders that eac zontal passage-way 42, which serves, funcand each gas-,inlet nected -to asuitab e` supply of gas. By referrin to Fig. 7 of the drawingsl it will be ob.-

serve that the gas-inlet port is entirely in dependent and free of the air-inlet port 39,

and the miniature` or comminglin of the gas andair does not take place in t 's instance until they have entered the cylinders. The

verticallydisposed passages'41 41 are provided with air-valvesv43 43, each valve con- .sisting of a casing 44, having a' spider-like frame 45 mounted therein, in which'is mounted a vertically-disposed valve-stem 46, carrying a valve-head 47, Whichis-normally held i-n engagement with the casing 44 `by a spring 48, mounted upon the valve-stem. Diametrically opposite' the gas-inlet orts .42 42 and the air-inlet ports 38 and 39 provide the exhaust-ports 49 49, these ports being bridged, as indicated at v5() 50, t0 support the packing-rings ofA pistons operating in the cylinders from entering said'z'eXhaust-ports. The outer ends oi the cylinders 5 andv 6 are e interior of the port will surround a hori- 'fresh supply of air and gas in the rear provided with suitable heads 51 51, carrying a conventional form -of sturhng-boxes 52 52, and through said boxes pass piston-rods 53 53, theouter ends of which are coijuxected to the crossfheads 11 and 12, while the ends extending within the cylinders 5 and 6 are provided with pistons 54 and55.- The ends of the pistons 454,and 55, confronting the partition- 33 are provided with deilectors 56 56, employed to deflect the'air and gas around Athe sides of the cylinders to the exhaust-ports- In order to operate the igniters A and B at predetermined times, I have provided the connecting-rod 9l with collars C and D. In Fig. 8 of the drawings I have illustrated one of the collars, consisting of a threaded sleeve 26a, which is secured to the rod 9 by a seti screw E. Upon the sleeve 26a is mounted the collar C, formedwith an annular tapering side F, and a portion of said collar is knurled, as indicated at G, to facilitate the rotating of the collar upon the sleeve. nut H is employed in connection with the collarto lock said collar upofr. the sleeve. This construction is employed in order that when the collars become worn they Ican be readily removed and replaced by new ones, and it is possible by'adjustably mounting the collarsupon the sleeves to minutely adjust the same to properly actuate its respective igniter. The construction of the collar D is identical With-,the 'constructipn of the collar C, the collarD being adapted to operate the .igniter Band the collar C the igniter A. f T

h ehperation of my improved engine is as follows: In describing vthe operating of the engine reference, will be had to Figs. 1 and 2, and assuming that the pistons 54' and"55"are inthe position illustrated in Fig. 2 fof the drawings, the 'igniter A is about to be actuated by the collar C, ,and as4 the air4 and gas admitted to the cylinder 5 hasbeen compressed by the piston 55 the actuation of the igniter A isl adaptedto ire the compressed gas and air behind the head of the' piston 55' and force the piston 55 to the lforward end of the cylinder 5. The cylinder 6'has also been takin gas and air in the forward end of .the cyljn er, and simultaneously with .the forward movement of the' piston. 55 vthe piston 54 is carried 'forward through the medium of the cross-head 11, connecting-rods 9, and 10, and cross-head 12, and the air and as .admitted to the cylinder 6 is compresse in the forward end of. said cylinder adjacent'to the igniter B. The forward stroke of the piston 55 I )ermits of the gasesand vapors ari-sing from the explosion to escape .through the eX.-'. haust-port 49 vof the cylinder 5. vThe forward movement of the pist-ons l55 and 54 causes the collar D tol actuate the igniter B, which iires the cylinder. 6 and forces the piston 54 rearwardly, the `piston 55 haring cleared the ports 39 and 42 and-received a Al jam or lock TOO end of 13o the cylinder 5,-Which is compressed/bythe rearward movement of the piston 55,.and I have reached the position ofthe cylinders 'as 'set forth in the beginning of theo' eration. This operation' is continuoustl'n'oug'iiout the working of my improved engine, and inconv nection with this operation Vattention to. the'iollowing features. ,-When' piston v55 is-'in the position -illustrated in the Fig. 2 of th drawings, it will be observed that the air and gas inlet ports 39 and 42 are closed, but the air-inlet prft 40 is open, which ward side of the piston of, the inrush of air thoroughly commingling 'compression and explosion. of air to the forward end of also serves to cool this'end seL plosion that may remain therein.

the gas entering thecyl 2 5' permits of air passing throu h the by-bath 36j Ile cylinder, and when the piston 55- opens the exhaustortthe air is adapted to cleanse'. this end o the cylinderand the exhaust-port.

into the forward end of t As the piston 55 isv carried forward the air remaining in the cylinder will be partly compressed until and drive out the products ofthe former ex- The ai'lv 'cooling' the forward, end of the cylinder, to-

gether with the water-jacket, is adapted to keep the cylinder in as'cool a state z place.; -By thereciprocating movement of the connecting-rods 9 and 10 the -igniters A andB-are alternately actuated, and by ador decreased. The contacting. of the taper- ,in gsides F of vthe vcollars si e justing the collars C and D, the speedatwhich the engine is operated can be increased with. thebeveled S of the fingers 26 2 6 moves the dependin g arms 25 254 of the igniters and causes an electric spark within the cylinders, a reverse movement'o the collars only `actuating the ingers`26 26, the sprin s3() returning the dcpending arms 25 to t The operation of the fingers 26 26 is obvious,

and in this connection may employ other mechanical expedients for similarly operating the igniters inl conjunction with the collars cylinders according to carried by the connecting-rods.

My improved engine m ay be' governed by a `conventional form of governor controlling the" may admit gas to the gas-supplypipe, which tliespeed of the engine, the

pression of the same. v

In Fig, 5 of thev drawings a combined air and gas valve is illustrated, which is similar in some respects to the'air-valve 43, with the I desireto4 call as possi-` ble consistent with the explosions taking.

I.actuate said igniters eir normal position.

' exhaust-ports formed therein, governor being actuated" by theI driven shaft 3. This manner of governing the engine, simply controlling and varying the :mixture of gas and air, does not effect the com-y exception that the base* 'of the casing 44 is rovided with-an annular' gas-passage 45,

" avingav suitable' inlet-port 46', to which a ploying separate and distinct gas-inlet ports, may einploy'the--air and -fga's valve, as illustrated in Fig. 5;

I have herein described electricsps'irk'i niters as the referred 'means o ig-' e cylindersof my imniting t e gas within t proved engine," it will of course be understood that various other types of igniters may be employed, such as the jump-spark,

fine myself to a double-acting gas-engine of vand in 'this connection I dov not care to conthe type herein described operated by elec.

tric-s ark igniters.

It 1s hought from theforegoing that the construction, operation, and advantages of the herein-described engine will be a parent without further description, and it wi l be understood vthat vario'us changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit of the invention or sacriiicing any of the'adva'ntages thereof. t

What I claim, and desire to secure by Letters Patent, is-

` 1. In a gas-engine off the type described,

the combination of cylinders, a partitioned` head mounted between said c linders, electric-spark igniters mounted 1n said head IOC upon each side of the partition of said head,

water-jackets surrounding said cylinders,

said cylinders having air-inlet ports formed therein, said cylinders havingv exhaust-ports 'formed therein, said cylinders having gasinlet ports formed therein, spring.- pressed` air-valves carriedby said cylinders, pistons mounted in. said cylinders and eXter iorlyconnect ed together and adapted to alternately. operate, means carried by the connecting parts ofsaidp'istons to alternately scribed. y 2. In a gasengineof the type described,

. the combination with a suitable bed-plate, of

a head formed with a partition and cylinders, composed of a separatefsectionof material from the cylinders and mounted between said cylinders, said cylinders havin gigas-inlet ports formed therein, said cylinders having air-inlet I io `sul2 stantiallyas deair valves 'controlling said airinlet ports,

pistons-mounted in said cylinders, rods connecting said pistons, means carried by said head to fire said by one ofsaid connecting-rods to actuate the rst'- Timed means, substantially-as described.

` 3. Ir a gas-engine of the type described,

cylinders, and means carried the lcoiribination with two cfylinders and an intermediate heed formed o a separate section from' said cylinders 'and having a central, transversely-disposed, partition and a radially disposed peripheral' projection formed Withopenin'gs, Iof electric-sparkig- Vniters extend-ing v'through'said openings into said head, pistons arranged in said cylinders,

rods c :ar'riedA "pistons and means disposed exteriorly of t. e-plstonsfor connecting said rods together, andrneans cariried by said con'- necting means forvactuating said spark-igniters.

4. I n Aa gas-engine ofthe type described,

the combination ofcylinders,4 a partitioned headinounted betweonsaid'cylinders, igniters moiited in said head upon each side of the partition of said head, watenj-afckets surrounding said cylinders, 'said'cylinders have ing air-inlet ports formed therein, said cylinders having exhaust-ports .forr'n'ed therein,

said cylinders having gas-inlet ports formed therein, spring-pressed air-valves carried by described.

In testimony whereof I affix my signaturel in the presence of t'Wo Witnesses. l

' REUBEN WILLETTS.'

Witnesses:

ALBERT L. BoWsER, A. H.y CORN.

igniters substantially as n

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