US989221A

US989221A - Explosive-engine.

Info

Publication number: US989221A
Application number: US40198507A
Authority: US
Inventors: Newell O Allyn
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-11-13
Filing date: 1907-11-13
Publication date: 1911-04-11
Anticipated expiration: 1928-04-11

Description

N. O. ALLYN.

EXPLOSIVE ENGINE.

APPLIoATIon rlLnn nov.13, 1907.

Patented Apr. 11, 1911.

2 SHEETS-SHEET l.

I l? ni n.

ance u for wi h1 esse:

Strain,

N. u. ALLYN. EXPLOSIVE ENGINE.

APPLICATION FILED NOV. 13, 1907.

wPatented Apr.'1r1;`1911.

wi h1 aooeo NEWELL 0. ALLYN, OF WARREN, OHIO.

ExPLosIvE-ENGINE.

Specification of Letters Iatent.

Patented Apr. 11, 1911.

Application 1aed November 13, 1907. serial No. 401,985.

To all whom 'it may concern:

p dispense with the necessity4 of employing the lrotary explosive elect-ric spark for igniting the charges of Aengines of the two-cycle type. s

According to my invention, the flame resulting from each explosion, in each of several revolving cylinders, is utilized to effect theignition of the charge of the next following cylinder. For this purpose the explosion end or chambercf each of several revolving cylinders is connected with the explosion endor chamber of the next followingcylinder so that as each charge is ready to be exploded a portion of the flame of the last previously-exploded charge will 'be utilized for that purpose, the passage of a portion of such flame being controlled automatically by means actuated by the pressure in each cylinder.

A further object is to prevent the non combustible gases of a previous explosion from interfering with the passage of a arne portion from one cylinder to another; and a still further object is to utilize the heat of these non-combustible gases to prevent the chilling of the flame-portion in its passage from one cylinder to another.

The invent-ion will be hereinafter fully set forth and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a view partly in section, and partly 1n side elevation, showing my present improvements. Fig. 2 isa central transverse section at right angles to Fig. 1. Fi 3 is a, horizontal sectional view. throug one of the cylinders. Fi ..4 is a diagrammatic' view.

In this appication I have shown a twocycle rotary explosion engine of the type embraced by my application for patent vfiled March 6, 1905, Serial No. 248,619,

which engine comprises two pairsof pistons, a rotatable crank shaft to the cranked portions of which the rods-of opposite pistons are secured, said pistons with their cylinders revolving with and around the crank shaft, which latter makes two revolutions to one revolution vof the cylinders and their casing. As pointed out in mysaid application, the casing 1 is mounted on t-runnions 2 supported by a stationary frame 3; and the shaft 4 is mounted iu bearings 5 eccentrically located within the trunnions. This shaft has two cranks, to-each of which are secured the inner ends of the rods 6 of opposite pistons, the pistons and rods of the set 7 being set at right angles to the pistons and rods of the set 8.

The gas-mixture is introduced into the crank chamber of casing l through a supply pipe, the opening in which the latter is secured being indicated at 9 in one ofthe trunnions. Each of the piston cylinders is closed at its inner end and provided with a packing box 10 for its respective piston-rod. The gas mixture is drawn from the common crank-chamber into each of the several cylinders through a by-pass port 12 which opens into such cylinder between its inner closed end and the piston. The mixture is so drawn by the outward travel of the pistons, and as the latter travel inwardly, on the explosion strokes, they close the outer ends of ports 12 and compress the charge in the inner or compression ends of the cylinders. As'the pistons clear transfer ports 13, opening into the cylinders at points farther out than 'the ports 12, they force the mixture from the inner or compression ends ofthe cylinders through such transfer ports into the outer or explosion ends of the cylinders, the outer .ends of such 4ports 13 being fully uncovered as the pistons reach the inner limits of travel. But prior to exposing the ends of the transfer ports, the pistons open up yexhaust ports 14' for the escape of the burned gases. I have shown each piston as formed with a detlector 15 for defiecting the gases as they enter from the transfer ports, and at 16 I have indicated diagonally-positioned screens.

On each piston cylinder, near its outer end, is a valve-casing 17 which communicates with its respective cylinder through outer anfl inner ports 18 and 19, such ports opening on opposite sides of a piston 20V on the rod 21 of a valve 22. This valve is normally heldto its seat by centrifugal action and, in addition thereto, a sprln 22Il acting on the valve-rod. The outlet si e of the valve casing 17 of each cyllndcr 1s conplosion of its mixture, it first opens the outer vport 18, permitting the pressure of the exploded gases to act against the outer face of the respective valve-piston 20 and effect the unscating of such-valve, and as soon as the inner port 19 is opened a. portion o-f the flame will immediately )ass through such inner poi-t and by the va ve 22 into the connecting tube -toeffect the explosion of the compressed charge in the next or succeeding cylinder. The escape into tube 23 is but momentary, since as soon as the pressure of the exploded charge 'is exerted against the inner face of Vthe valve-piston 20, (thereby equalizing the pressure on both sides thereof) the valve will be seatedby centrifugal force coupled with the action of the spring. The escape of the flame into the connecting tube occurs as the next succeeding cylinder is in position to have its charge exploded.

Each of the tubes 23 is inclosed throughout a major portion of its length by a jacket or chamber 24C which is connected at one end by a` small tube 25 either with tube 23 or with -that portion of valve casing 17 into which such tube 23 opens. After cach explosion, the respective flame tube 23 is filled with carbon dioxid gas, the result .of complete combustion, which f gas is driven, on the next compression stroke of the piston, intoy the flame-entrance end of the tube, and through the small tube 25 into the jacket 24. This leaves in each tube -only the fresh mixture (forced thereinto by such compression stroke), and allows the flame from the last previously explodedcylinder to immediately reach such mixture upon the unseating of valve 22. Were vit not for this additional chamber or jacket the non-combustible gases would interfere with the ready passage of the flame, and delay the ignition of the charge in the next succeeding cylinder. Furthermore, the heat of the burned gases within the jardets 24; serves to prevent the chilling of the flame portions in their passage fro'm one cylinder to another. In consequence of this feature each of the several `flame conveying tubes is kept free of all non-combustible gases, and an uninterrupted passage way is provided forthe flame portions.

Althbugh the ignition of the charge of each revolving cylinder is effected by a portion of the flame of the last previouslyignited charge, yet it is essential that some means be employed for securing the initial ignition. This may be accomplishedvin Various ways, and the particular means employed is immaterial. Preferably, as shownby the diagrammatic View, Fig. 4, each of the cylinders may be equipped with a sparker 26 electrically connected, in any of the well-known ways, with a battery 27 and *I a spark lcoil 2S so that in starting a spark may be generated in any one of the several cylinders.

I have not herein described the construction shownin the drawings for guidingthe inner ends of the pist-on rods as they travel in the crank case, since the vmeans so shown ,y

dilers'but slightly from what is showmand described in my y before noted application for patent. v

It will be understood that I do not confine myself to any particular means for carrying out my invention, but I have shown and described what- I believe to be preferable for accomplishing the purposes stated. v

I claim as my invention:

1. A rotary explosive-engine of the twocycle type comprising a plurality of revolving cylinders, reciprocatlng pistonsl therein, I

a crank shaft to which the piston rods are secured, passageways connecting the explosion ends. or chambers of the several cyliny ders for admitting a portion of the flame created in each cylinder into the next succeeding cylinder for igniting the charge thereof, and means operable within said pas-- sageways for automatically controlling the passage of such flame portion from each cylinder, such latter means being operated to open and close said passagewaysby the explosive force in the cylinders.

2. A rotary explosive-engine of the twocycle type comprising a plurality of revolving cylinders, reciprocating pistons therein, a crank shaft to which the piston rods are secured, passageways connecting the explosion endsV or chambers f the several cylinders for admitting a ortion ofv the flame created in each cylinder intoy the next succeeding cylinder for igniting the charge thereof, meansl adjacent to each cylinder for normally closing the passageway connecting the latter tothe next succeeding pyli/nder, and mea-ns for utilizing the explos1ve :force in each cylinder for`frst opening said latter means and then kpermitting the closing thereof. y 3. A rotary explosive-engine of the twocycle type comprising a plurality vof revolving cylinders, reciprocating pistons therein, a crank shaft to which the piston rods are secured, tubes connecting the explosion ends or chambers 'pf the several cylinders, valves normallyclosing the entrances to said tubes, pistons carried by said valves, and means for permitting the pressure in each cylinder to act on said pistons to first unseat said valves and then to throw saidpistons in balance to allow the valves to be seated.

la.i

therein, a crank shaft to which the piston rods are secu-red, tubes connecting the explosion ends or chambers of the several cylinders, valves for normally closing the entrances to said tubes, springs for holdin said valves seated, pistons connected to sai valves, and ports leading from the explosion chamber of each cylinderl to opposite sides of the valve pistons.

5. An explosive engine comprising a plurality of cylinders, reciprocating pistons therein, a crank shaft to which the pistons are secured, means connecting the explosion ends 0r chambers of the several cylinders for admitting a portion of the flame created in each cylinder` into another cylinder for igniting the charge thereof, and means `mountedupon said connecting means for receiving the non-combustible gases.

6. An explosive engine comprising a plu,- rality of cylinders, reciprocating pistons therein, a crank shaft to which the pistons4 are secured, tubes connecting the explosion ends Qr chambers of the several cylinders for admitting a portion of the flame created in each cylinder into another cylinder for igniting the charge thereof, and a chamber in communication with each of said tubes for receiving the non-combustible gases from such tubes. l

7. An explosive engine comprising a pluzrality of cylinders, reciprocating pistons therein, a crank shaft to which the pistons are secured, tubes' connecting the explosion ends orchambers of the several cylinders for admitting a portion of the flame created in each cylinder into another cylinder for igniting the charge thereof, and a chamber in communication with each Iofsaidtubes for ends or chambers ofthe several cylindersfor admitting a portion of the` flame created'in each cylinder into another cylinder for igniting the charge thereof, and jackets or chambers surrounding said tubes and in communicationy therew1th for receiving non-combustible gases, the heat of such gases serving to maintain the temperature of said tubes tol prevent the flafne portions from being chilled.

9. A rotary explosive-engine comprising a plurality of revolving cylinders, reciprocating pistons therein, a crank shaft to which the piston rods are secured, tubes connecting the explosion end or chamber of each cylinder with the explosion endl or chamber ofthe next following cylinder,'n,ieans for admitting into each o the flame created in eachcylinder for ignitf ing the charge in the next following 'cylinder, and chambers with which said tubes communicate for storing burned gases forced into said tubes after each explosion.

Intestimony whereof, I have signed this specification in the ing witnesses.

, NEWELL O. ALLYN. Witnesses:

GEORGE H. BnowN, MARY R. LYoNs.

said tubes a portion of 4 presence of two subscrib-`