US922911A - Internal-combustion engine. - Google Patents

Description

* T. D. KELLY.

INTERNAL GOMBUSTION ENGINE. APPLICATION FILED NOV. 8, 1907.

922,91 1 Patented May 25, 1909.

. MW 53 I I 5 .To ali'whom it may concern."

ilhll FEED @Tdfihhl THOMAS DANIEL KELLY, OF ESSEX, ENGLAND.

INTERKAL-CO MBUSTION ENGINE.

Specification oi Letters Patent. Patented May 25, 1909.

, Application filed November s, 1907. Serial no. 401,305.

Be it known that l- THOMAS DANnaL KELLY, a subjectof theiiiiigfof Great Brit ain, residing at 20 Chi? avenue, Westcliti-on- Sea, Essex, England, engineer, have invented certainnew and useful Improve ments .in Internal-Combustion Engines, of

which the following is a specification..

The present mventionrelates to improvementsin internal combustion engines oi-the two cycle type and wherein a set-of three cylindcrs or a multiple thereof is employed, the cranks of the engine serving to time'the op- Qerations of the pistons so that each cylinder will operate one-third of a revolution in ad- .vance of the'next cylinder so that the engine pistons and pumpsflwill so operate that at each revolution of the crank shaft, power is imparted thereto from any one piston during one-third of therevolution ofthe shaft, the discharged and new exhaust gases are charges are bemg admitted to the respective cylinder during another third of the reyolw.

' tion of the shaft, and compression is taking place during another third of the revolution. of the crankshaft.

Another object of the invention is to provide an improved engine of this character from the main to a muffler while the auxiliary port may discharge into the atmosphere, and wh-ileithe'se' auxiliary ports of the cylinder are open tothe atmosphere,

explosive ports thereof are I-F-ig. 1.

Wherein the main exhaust port of each cylinder opens preliminarily to the opening of an auxiliary exhaust port, the gases exhaustel exhaust port being conducted the incoming charges of the mixture cause the dead gases to be discharged therethrough, back pressure be ing thereby eliminated.

A further object fthe gases are discharged of the engineare'cooled; h The annexed "drawings illustrate-how '1- carry my invention into effect: I Figure 1. is a sectional: elevation'o ':pistoris,' connecting pipes, end elevation of -ing-their positions When'the pistons" are as -at Fig. 3.. is a diagram of the working pistons stroke. Fig. d-i'sa-diagram' of the pump stroke, A-to B'indicating'suct'ion, B to 3 compression, and-C invention is to provide means for introducing mixedfairf-and water into the .cylinders'while the exhaust: open whereby the exhaust and the working-parts? I pump i -three t A'P mip e thrives elevation (enlarged) of the air and Water scavenging valves and the box.

The pistons 1, 2 and 3 with their pumps 4,

in a Wellknown manner, each piston being connected by. a rpd to a crank.'1(),'1l and 12,

sitioned at 120 degrees'with each other or 1n other words at equal distances around, the circumferential travel of the crank shaft 13. In this position, the piston 1 is situated at the top of the stroke, piston 2 two thirdsof the down stroke and piston 3 one third of the upstroke.

At the head of each cylinder or at other suitable part is situated aninlet valve 14, 15, 16, these opening from the cylinder each into a box 17, 18 or 19, each of-which boxes is provided With an air inlet valve 20, 21, 22, and also awatervalve controlled by needles 27, 28, and 29, the Water pipe 30, 31, 32 leading to the seatings of. the valves 20, .21, 22..

Each box 17,18,19 has a pipe 33, 34, 35, the pipe 33 leading-to the cylinder 36 of the pump piston 5, the pipe 34 leading to the cylinder-37 of the ump piston 6, and the pipe 35 leading to t e cylinder 380i. the pump piston 4. y 39, 40 and 41 are the combustion mixture inlet Valves;

A set of pipes 42, 43 and 44 extendi'rom the respective engine cylinders and lead to oneor-more muiiiers of any suitable construction. v v

45, 46 ande17 are auxiliary exhaust ports leading to the atmosphere.

' In the position shown, received theexplosion, and is on the downward stroke. Piston 2 has been moved down by the expansive force of-the explosion in its cylinder, and is just reaching the main exhaust' 43. Piston 3 is one third of its travel on the up stroke, and is commencing toacoinpress the combustible mixture forced. into the cylinder 9 by the] previous upstroke of the 4. On theld'ownstroke ol' the pump 5 [air has been drawn into the. pipe 33 and cylinder'36, through the valve. 20, and'at the same time Water haslbeen drawn in with the air drawn into the-cylinderac by' the pump 5 throughthe valve .41),

being closer thanthe air and .water supply is drawn in next to the piston 5, so'th at on the ejection, the .Water and air into working cylinder. Fig. 5. is a sectional of the crank. shaft 13. .These cranks are pothe piston 1 has just [from the; supply pipe 30, also .a charge of gas drawn into the 5 and 6 are arranged in cylinders 7, 8 and 9,

charge. ofcombustible mixturev tln'ough thc'vnlve .41

and-also the air and water through the valve '21'andpipe 31 respectively, but in the position shown the pump is just about to eject the'water'and air through the pipe 3-} into lthe cylinder 8, which it .does' immediately after the main exhaust 43 is open, so that the pressure is released in the. cylinder 8 to allow of the pressure in the cylinder 37 overcoming the valve v15. The piston 11 is now on its down stroke; andsosoon as it reaches the -m'ain-'exhaust 42, the expansive products of combustion exhaust themselves through the gases pass away,- I air and water from the cylinder 36 and its same of the remaining gases, followed by the 01 gas and air and" also water exhaust 42 and pass away. As the exploded the scavenging charge of pipe --33 pass into the. cylinder to clear combustible charge from the cylinder 36. Just as the piston 1 passes the exhaust 42,

the auxiliary exhaust 45 is opened, so the remammg gases may be forced out without, be-

ing checked by the exhaust gases in the silencer, thus creating a clean cylinder each time. -During the downward movement of this piston, the pump has-drawn in a charge viouslymentioned with regard to pump 5. The piston 1 has now'reachedthe end of the downward portion of thestroke, and com- Inenced the upward portion of the stroke to I cylinder through the compress the combustible charge in its cylin der 7, th

0 pump 4 forcing the charge in its 38 and the airand gas in the pipe 35, pipe 35 into the cylinder 9, the act-ion of the different pistons and pumps being'in sequence.

,What I'do claim, and desire to secure Letters Patent. is

1. An internal combustion engine includa cylinder having a piston to operate therein and a suitable crank shaft, the cylinder'heing provided with a main exhaust port which is opened when the piston approaches the end of its power stroke and also anauxiliary. exhaust port arranged to be opened during the further movement of the piston toward the end of said stroke, and. means for introducing a mixture of air and water into the sald cylinder after the main and ports thereof have been opened to 55 expel the products of combustion therethrough;

internal combustion engine includinga'plurality of cylinders having pistons to opelrlate therein and a s'uitablecrank shaft, eac which is opened when the respective piston approaches the end of its power stroke, and a so an auxiliary exhaust port arranged to beopenedduring the furthermovement of its respective piston toward the end ofits powerstroke, a pump 'water from the pump, a carbureter for and air as prc- 'into said cylinder. to

pply,

auxiliary cylinder havinga main exhaust port -b operable by'eaoh piston, and

means for introducing a mixture of air and inders with which the said pumps communicate after the main and auxiliary exhaust ports thereof'h'ave been opened to expel the products of combustion therethrough.

3. An internal combustion engine includseveral pumps into the cyling a cylinder having a piston to operate therein said cylinder being provided with an exhaust port throughwhich the consumedgases may be discharged,-a pump, a pipe communicating with the pump and with said cylinder, means for admitting air and water to said pipe during the admit-ting gas directly to said pump and during its suction stroke and means for operating said pumpon its power stroke to first discharge the mixed air and water into said cylinder after the exhaust port thereof has opened and to subsequently force the explosive gas into the engine cylinder.- v I 4. An internal combustion engine includsuction stroke of said ing a cylinder provided with a p ston, said cylinder having an exhaust port, ,apump, a

pipe leading to the pump and communicating with the cylinder, and a valve communlwater and eating with sources of air and serving to admit said fluids iirtosaidpipe during the suction stroke means for operatin pression stroke whi e of said pump, and the pump on its'com the said exhaust port is open to introduce the mixed air and water exhaust the consumed gases therefrom through said exhaust port.

inder having an exhaust port, a pump operas tively connected-to the crank shaft, a pipe inder andrpump, commumcatmg with sources of air and water on the compression stro e of said pump whereby the mixed air and water is discharged into the cylinder to remove the consumed gases therefrom through its exhaust port. i i

6. An internal combustion engine including a cylinder having a piston to operate therein and a suitable crank shaft, a pump, an inlet connected directly to the pump for admitting a combustible mixture thereto, a pipe establishing communication between the pump and the engine cylinder, the latter eing provided withan exhaust port, and a valve for simultaneously admittmgair and water to said pipe during the suction stroke of sald pump), means for supplying a charge of com 'ustl l said valve admitting air and water ,to said pipe during the suction'stroke of the pump, and said valve bein arranged to close 5; An internal combustionenginainlud; mg a cylinder having a piston to operatetherein and a suitable crank shaft, the cyle mixture also to the pumpr during its suction stroke, operatmg said pump on its compression and means for and water into'the-eyhnder todischarge the, consumed "gases 'tl-rerefroin -Ithro'u gh; its ex stroke preliminarily to -;r0 re the mixed air .haustpo'rt, and subsequently'forintroducing' the combustible mixti'lre". into the enginemg a.

operate in the respective cylinders,'a crank shaft having cranks thereon gsetl at equal, angles about the shaft and connected to therespective pistons, a pump connected to operate wit 1 communication between each cylinder and one of said pumps, a valve mounted'in each pipe for simultaneously admitting air and set 1 of three cylinders provided with suitable exhaust; po=rt's, v pistons" arr'ahged to.

each piston, a pipe establishing I Water thereto during the suction stroke of its corresponding pump, and inlet valves to control communication between the cylinder and the respective pipes, said valves being through the respective exhaust ports.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

THOMAS DANIEL KELLY.

Witnesses:

RICHARD CORE" GARDNER, LYNWooD FERDINAND GARDNER.

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