US1200133A - Polyimpulse gas-engine. - Google Patents

Description

L. C. REED.

POLYlMPULLSE GAS ENGINE.

' APPLICATIONYFILED JUNE 11. 1915.

' Patented Oct. 3,1916.

4 SHEETS-SHEET I.

' all L. C. REED.

POLYIMPULSE G'ASENGINE;

I APPLICATION FILED JUNE 17, 1915- 1 ,200, 1 3 3 Patented Oct; 3, 1916 4 SHEETS-SHEET 2.

L. C. REED.

POLYIMPULSE GAS ENG INE. APPLICATION FILED JUNE11 19 15.

mamas.

4 SHEETS-S H EET .3.

Patented 0%. 3,1916.

L. C. REED.

POLYIMPULSE GAS ENGINE.

APPLICATION FlLED JUNE 17. 1915.

Patented Oct. 3, 1916.

' 4 SHEETS-SHEET 4 UNITED STATES PATENT OFFICE.

LYMAN C. REED, OF NEW ORLEANS, LOUISIANA, ASSIGNOR OF TWENTY-FOUR ONE- HUNDREDTHS TO EUGENE A. PHARR, OF THE PARISH OF ST. MARY, LOUISIANA, AND TWENTY-FOUR ONE-HUNDREDTHS T0 WARREN B. REED, TEN ONE-HUN- 4 DREDTHS TO ROBERT E. MILLING, AND FORTY-TWO ON E-HUNDREDTHS TO CHARLES M. ESPY, ALL OF THE PARISH OF ORLEANS, LOUISIANA.

IOLYIMPULSE GAS-ENGINE.

Specification of Letters Patent.

Patented Oct. 3, 1916.

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. a

This invention relates to a combined reciprocating and rotary gas engine, and has for its purpose to provide an engine of this character that will be more simple and less costly in construction, and more efficient and certain in action than has been heretofore proposed. I

\Vith these and other objects in View, the invention consists in the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification in which like numerals designate like'parts in all the views: Figure l is a sectional view taken on the line 11 of Fig. 2 of an engine made in accordance with the invention, and looking in the direction of the arrows: Fig. 2 is a sectional view taken on the line 22 of Fig. 1, looking in the direction of the arrows; Fig. 3 is a partly sectional view taken on the line 33 of Fig. 1, looking in the direction of the arrows; Fig. 4 is a sectional detail view taken on the line 4% of Fig. 1, looking in the direction of the arrows; Fig. 5 is a sectional detail view taken on the line 55 of Fig. 1, looking in the direction of the arrows; Fig. 6 is a sectional detail view showing a slightly modified form of the invention; Fig. 7 is a view taken on the line 77 of Fig. 6; and Fig; 8 is a View taken onthe line 88 of Fig. 6.

1 indicates the rotor spider, 2 the stator inside of which the rotor revolves; 300, 301, 302, 303, 304 and 305, etc., the gas pockets in the rotor rim 3 and their positions at certain periods of the cycle; 4 indicates inserted slidable metal pieces with which the gas pockets are lined, and which act as gas I means for keeping the same normallyv in the position shown.

8' represents a pipe leading to the carbureter -or other supply, 9 a check valve controlling the admission of fuel into the space 10 above the piston 5, and 11 another check valve controlling the passage between the said space 10, and the chamber 12. Leading into the chamber 12 is a pipe 13 provided with a check valve 14, and which communicates with a compressed gas tank not .shown.

15 represents a pipe provided with a valve not shown, leading from said compressed gas tank to the chamber 12.- As best shown in Fig. 2, a space 16 is provided immediately below the piston head 6, and which space communicates through the passage 17 with the chamber 18 in which is located the sparking device 19 as will be readily understood.

So far as now disclosed, should a gaseousfuel mixture under sufficient pressure be delivered into the chamber 12, through the pipe 15, it will fill said chamber and the gas pocket-in the position 300, and will turn the rotor 1 until the said pocket moves from the position 300 to the position 301, when the compressed fuel contained in said pocket will enter the space 16 and pas- ,sage 17, reach the plug or sparking device 19, become ignited, and an explosion will result. The force of the explosion will lift the piston head 6, which will cause a com: pression of any gaseous fuel which may already have entered the chamber 10', and this compression will close the check valve 9, open the check valve 11, and will force an additional quantity of compressed gas into the chamber 12. The gaseous mixture thus forced into the chamber 12 will act to impart an impulse to the particular gas pocket that then occupies the position 300, and to thus aidin rotating the rim 3. The force of the explosion will further impel the gas pocket in the position 301, a certain distance around the axis of the rotor, and when said. last named. pocket reaches the position 302, its contained compressed gas will react against the stator 2, enter the passage 20 and exhaust through the passage 21 in the space 27 inside the rotor rim 3. In the meantime, the piston head 6 will have moved upwardly sufiiciently to permit the space in the cylinder 7 below said piston head to communicate with the passage 22, and thereby permit the hot gas between said piston head 6 and said rotor rim 3, to be exhausted through said passage 22 into the gas pocket which occupies the position 303 in Fig. 1. The exhaust gas from the cylinder 7 thus entering the last named gas pocket will react against the stator 2 to further impart an impulse to the rotor rim WVhen the gas in the last named pocket reaches the position 30-1, in Fig. 1, the exhaust gas under pressure will further react against the rotor 2, enter the passage 25, and exhaust through the passage 26 into the space 27. It will thus be seen that a single explosion will cause an impulse to be exerted on the pocket occupying the position 300, it'will exert an impulse on'the pocket occupying the posi-' tion 301, that the highly heated and compressed gas will exert an impulse on the pocket occupying the position 302 on the pocket occupying the position 303, and on the pocket occupying the position 304:.

The spring 8 returns the piston to the position shown in Fig. 1, and as the movement of each gas pocket after each explosion is greater than the total movement of the piston 5, the piston head 6 will have returned to its normal position before another explosion takes place. The return of the piston head 6 is aided by gravity, the stored energy in the spring 8, as well as the expansive force of the compressed gas in the space 10. The valve 11 immediately closes as the piston begins to return or when the pressure in the space 10 becomes less than that in the chamber 12, and a fresh charge of gas is drawn in through the valve 9.

In the downward stroke of the piston head 6, there would be a tendency to compress whatever residue of gas that might be left below the piston head 6, but the exhaust passages such as 21 and 26 in the rotor rim 3, are so spaced as to register under the space or opening 16 at the time this compression would take place, and therefore any such residue is readily exhausted into.

the space 27 with which the rotor rim 3 is provided. This feature of the invention allows the piston 5 to return rapidly to its lower position in time for the preceding gas pocket to register withv opening 16, and to repeat the above operation. The said openings such as 21 and 26 with which each gas pocket is associated, are so designed as to give a greater or less turning movement to the rotor rim due to the force of the exhaust. It will here be observed that two important advantages result from this mode of operation: (a) All dead gases are eliminated, and (b) they do not mix with the next firing charge. A third additional advantage resides in the fact that (c) all valves are outside of and are therefore protected from the fired gases. In other words, the valves are called on to handle only clean gas and therefore are not subject to a carbon deposit. This feature is of considerable importance in that it enables a very high efliciency to be attained, and it insures a certainty of action or acon'stant working condition which is not present in those engines that permit a deposit of carbon upon their controlling valves. If there are eight gas pockets in the rotor as shown, this single cylinder engine will develop not only the forty impulses disclosed above but at least sixteen additional ones making at least 56 impulses in all for each rotation. That is to say the engine will develop 8 primary impulses due to the primary explosions of the gas i n the pockets as they each occupy the position 301. It will develop 16 secondary impulses due to the pockets, as they successively occupy the positions 302, and 303. It w1ll develop 8 more impulses as each passage such as 21 registers with the exhaust passage 22, and receives the exhaust from sald last named passage after its upper end has been closed by piston '5. It will develop 8 more impulses as the pockets in the posi tion 304 discharge their gas through the passages 25'and 26, and it will develop 8 more impulses due to the compressed gas from the chamber 12 entering the pockets in the position 300, thus making 48 impulses. In addition to this, the exhaust of the gases from the space 16 through the various passages such as 81, 82, 83, 84, 85, 26 and 21, will add 8 more impulses, making a total of 56 in all, for each revolution. Of course th s number may be increased, if we count minor impulses such as those taking place when pocket 302 registers with the lower end of passage 20, and exhausts back through said passage 20 and rotor passage 21, or decreased according to the design of the motor, for it is obvious that by increasing the diameter of the rotor as many cylinders 7 can be distributed around the periphcry of the stator as the design will allow, and of course the number of primary and secondary impulses per revolution will be increased in like proportion. It is also obvious that several units may be connected on one shaft in tandem to increase the power, or both of the above plans may be employed .in combination to get any units of horse power required. Of course, many variations may be made in the dimensions of the explosion pockets, and of the explosion cylinder.

A simple method of lubricating the whole engine is provided by the oil cup 30, connected by the nipple 31 to the carbureter lead pipe 8'. The oil is thus drawn into the cylinder 7 and lubricates it, while any ex-.

cess of oil is discharged intofthe chamber 12, from where it is blown into the pockets at the position 300 and onto the rotor rim 3, thuslubricating the surface between the said rotor rim and the stator 2. Of course, the oiling system can be augmented by several other means, but the above is found to be sufficient inpractice. Any excess of gas that may enter the chamber 12 is at once forced through the pipe 13, and past the check valve 14 into the compressed gas tank not shown. I prefer to provide the said compressed gas tank with the ordinary air valve and pet cock, so it can be primed with gasolene, and charged with compressed air from any suitable outside supply or air pump, not shown.

Cooling water is provided for 1n the spaces 40, 41, 42, 43, and 44. The pipe serves to' introduce said Water into the system, and the pipe 46 serves to discharge the same. The circulation of this water may be effected by a pump not shown, or by any other suitable means. 'When the piston -5 is in its lowest position, the water from the space 41 flows through the opening 47 and passage 48 out of the opening 49 into the space 42, thus cooling the piston head-6. The piston head is further provided with an opening 50 to discharge a portion of the water from the passage 48 into the exhaust passage The hot gases later discharged into opening 22, converts this water into high pressure steam, and increases the ima pulse to the rotor when discharged at 303.

The supply from the circulation system furnishes the water thus consumed.- The heat that would otherwise be-lost by radiation is thus partially utilized to convert this water into steam and this accordingly adds to the efficiency of the motor not only due to the increased volume of gas thus produced, but also to the increased momentum of the mass of the gas impinging upon the pockets at the position 303. Of course, where it is not desired to thus consume cooling water the hole 50 may be plugged up. The supply of gas from the carbureter through the pipe 8' is conveniently controlled by a valve not shown. The plugs 55,, 56 and 57 are readilyremovable and thus allow the valves to be taken out, and adjusted when it becomes necessary. The entire hood 60 is detachable from the stator 2 upon removing the fastening means 61, so

that the piston 5 may be readily removed and repaired. The saidpiston is provided with the usual packing rings 63 and (S4 and it is conveniently hollowed out as shown at 66 in order to reduce its weight. Should any water accidentally find its way into the passage 22, it does no harm and really acts as a cooling agent.

In Fig. 2 extension '70 of the stator accommodates the ' end casings 71 and 72 through which the shaft 73 of the rotor is supported. The rotor is keyed to shaft 73 by means of key 74 or by any other suitable means. Rings 75y=md 76 form the ends of the gas pockets-300, etc., and furnish supports for the slidable members,-4, forming the side Walls of said pockets. The upper ends of the gas pockets are formedby movable gas checks 77 which due to centrifugal force make a rubbing joint with stator 2, as will be clear from Figs. 1 and 2. When the explosion in the gas pockets takes place, these gas checks are forced against the stator 2 and prevent leakage of gases from the sides of said pockets. Should these gas checks, however, fail for any .reason to operate efliciently, the segmental rings 79 effectually prevent the leakage getting past the rotor. The segmental rings 79 are further shown inFigs. 4 and 5. When the rotor revolves, these rings fly out into the groove provided in, the stator which is not haust passages 81, 82, 83, '84, 85, 26, 21,

etc., see Fig. 4, so that leakage through said passages before firing does not occur- But any leakage in the spaces between the gas pockets is discharged through said passages and therefore no back firing can occur. The rotor is made to fit the stator 2 with a very small clearance, and any Wear that occurs is compensated for by the slidable gas checks, so the motor is kept tight.

The ignition system is simple, as shown, no timer is necessary and the spark from the plug 87 is maintained continuously from any suitable source of current supply over wire 86.- A fan device 88 is attached to one side of rotor Fig. 2, and may form a continuation ofone of the outer rotor members 90. The various exhausts through passages 81, 82, etc., are sucked out into space 27, Fig. 1, and discharged by fan members 88 into pipe 92, while fresh air is drawn through passage 93 in stator extension .70 and through passages 82-, 83, etc., in the &

rotor. This furnishes a means of cooling the rotor, and also purges the gas pockets of their burnt gas. Both end housings carrying the bearings 94 are tight so as to ing at five points, per revolution, as shown,

a large per cent. of the power in the exhaust gases is utilized and a motor of high efficiency obtained.

Coming now to the slightly modified form of the invention illustrated in Figs. 6, 7 and 8, the construction is the same as in the foregoing figures and description, except a slide valve 100 is placed in the inlet 80, between the chamber 12and gas pockets 300, all as will be clear from a comparison of Figs. 1 and 6. This slide valve is provided for the purpose ofincreasing the e'lficiency of the engine when the parts become worn through excessive use, and operates in such manner as to let gas from chamber 12 into the rotor pockets, but it closes when said pockets are out of register withthe opening 80, as will nowbe made clear. 101, Fig. 8, shows a bridge across the opening, and grids 102, are equally spaced so that passages 103 will register with valve openings 104, when the 351valve 100 is open, and be closed by valve grids 105, when the valve is closed. The shifting of valve plate 100 into its open and closed positions is accomplished by projections 105 and 106, and 107 fastened to the 20' rotor members 90 and so spaced as to open and close the valve at the proper intervals. That is to say, the valve plate 100 extends beyond the rotor members 90, and is provided with the rounded corners 108 and 109, see Fig. 7, which at times lie in the paths of the projections 105, and 106, and the projections 107 respectively. When the projection 105 strikes the corner 108, the plate 100 is thrown into the position shown in Fig. 7 and into the path of projection 107, thus, we will suppose, closing the passages 103. But an instant later the projection 107 strikes the corner 109, and forces the plate 100 in the opposite direction and thus opens said passages 103. An instant still later, the projection 106 strikes the corner 108 and restores the plate 100 to its position shown in Fig. 7. It thusresults from the construction shown, that the valve plate 100 receives reciprocating impulses, causing it to open the passages 103 only when the gas pockets 300, etc., register with the chamber 12, and causing it to close'said passages 103 at all other times, the parts of course being properly timed to accomplish this result.

With the reciprocating valve just disclosed, any leakage, due to wear, of gas from chamber 12, when the gas pockets are .out of register with said chamber is efsion of gaseous fuel under pressure fromthe pipe 15 into the chamber 12 and into the pocket 300 causes the motor to be self starting and for the following reasons :Supposing the pocket 300 to be filled with air at atmospheric pressure, to be moving toward the opening 80 in a clockwise direction, and that the parts are so proportioned that the port 80 is restricted while the pocket 300 is very deep-relative to its width, when communication is established between the chamber 12 and pocket 300, theinitial admission of fuel under a high pressure into said pocket will act as a blow to increase the speed of rotation of said pocket and said initial admission will continue to so act, until the pressures. in said pocket and said chamber are equalized. Further, after the said pressures are thus equalized and the said pocket reaches the position 301, the said compressed fuel will be ignited first on its top layers; and progressively burn down toward the bottom of said pocket. The port 16 being sufficiently restricted, the gases thus produced and expanded will stream through said port 16, lift the piston 6, and become more expanded in the cylinder 7. The reaction of the continued stream of flaming gases through said restricted port 16 may be likened to the reaction of the gases emitted by a rocket, and its effect will be to still further speed up the rotor. This turning action on the rotor is further insured and enhanced by the fact that .the piston rises sufficiently to permit the said gases to escape through the passage 22.

I regard the above as important features of the invention, but ofcourse, in addition, the gases further react on and through the chambers and passages of, the rotor and stator in the manners above disclosed.

It is obvious that those skilled in the art may vary the details of construction, as 'well as the; arrangement of parts without departing from the spirit of my invention, and therefore. I do not wish to be limited to the above disclosure except as may be required by the claims. 1

What I claim is 1. In a .gas engine the combination of a rotor provided with gas holding pockets; means adapted to fill said pockets with an explosive mixture; acylinder provided with a piston with. which said pockets are adapted to register; a conduit between said means and said cylinder; and means to explode said mixture in said pockets when said registration takes place, substantially as described.

2. In a gas engine the combination of a rotor provided with gas holding pockets; means comprising a chamber adapted to fill said pockets with an explosive mixture; a cylinder provided with a piston with which said pockets are adapted to register; connections comprising a conduit between said chamber and said cylinder; and means connected with said cylinder adapted to explode said mixture in said pockets when said registration takes place, substantially as described.

3. In .a gas engine the combination of a rotor provided with gas holding pockets; a cylinder with which said pockets are adapted to successively register; a chamber adapted to communicate With said cylinder and to supply said pockets with an explosive mixture; means for supplying an explosive mixture to said cylinder; a piston in said cylinder'between said pockets and said last named means; and means for exploding the mixture in said pockets when said registration occurs, substantially as described.

4. In av gas engine the combination of a rotor provided with gas holding pockets; a cylinder with which said pockets are adapted to successively register; a chamber adapted to communicate with said cylinder and to supply said pockets with an explosive mixture; a valve controlling the communication between said chamber and saidcylinder; means for supplying an explosive mixture to said cylinder; a valve controlling the supply of said mixture from said means to said cylinder; a spring pressed piston in said cylinder between said pockets and said last named means; and means for exploding the mixture in said pockets when said registration occurs, substantially as described.

5. In a gas engine the combination of means for supplying an explosive mixture;

a cylinder for receiving said mixture; a valve for controlling the admission of said mixture to said cylinder; a chamber com-.

municating with said cylinder adapted to receive sa1d mixture; a valve controlling the communication between said cylinder and said chamber; .a rotor carrying a plurality of pockets adapted to successively register with said chamber to be charged and then to register with said cylinder to have their charges exploded; and .a reciprocating piston insaid cylinder between said pockets and said valves whereby the latter are protected from the action of burning gases and from deposits of carbon thereon, substantially as described.

6. In a gas engine the combination of a rotor provided with a plurality of pockets; means for successively charging said pockets with fuel; a cylinder successively communiin said cylinder; an ignition means adapted to' successively communicate with each pocket and explode the charge therein, thereby giving successive impulses to said rotor; and means associated with said cylinder and piston for absorbing a portion of the energy of each explosion and later imparting it to said rotor, substantially as described.

7. In a, gas engine the combination of a rotor provided with a plurality of pockets; means for successively charging said pockets with fuel; a cylinder successively communicating with said charged pockets; a piston in said cylinder; an ignition means adapted to successively communicate with each pocket and explode the charge therein, thereby giving successive impulses to said rotor; and means comprising a compressible spring and a gas holding chamber associated with said cylinder and piston for absorbing a portion of the energy of each explosion and later imparting it to'said rotor, substantially as described.

8. In a gas engine the combination of a rotor provided with pockets; means for exploding successive charges of gases in said pockets and giving successive impulses to said rotor; means permitting each exploded charge to further expand after its initial impulse to add an additional impulse to said rotor; areciprocating piston adapted to receive the impact from said exploded charges and means associated with said piston for absorbing a portion ofv the energy of each explosion and imparting it to said rotor, substantially as described.

9. In a gas engine the combination of a cylinder; a reciprocating piston in said cylinder; means to supply gaseous fuel to one side of said piston; a chamber for holding said fuel under compression communicating with said side of said piston; a rotor provided with a plurality of gas holding pockets adapted to successively communicate with said chamber and then with said cylinder on the other side of said piston; means for exploding the gas in each pocket as it communicates with said cylinder; and means for permitting the exploded gas to further expand and to impart an additional impulse cating with said charged pockets; a' piston as it communicates with said cylinder; means for permitting the exploded gas to further expand and to impart an additional impulse to said rotor; and means permitting said piston to compress the unexploded gas in said chamber after each explosion and to thereby impart an additional impulse to said rotor; substantially as described.

11. In a gas engine the combination of a rotor; a plurality of gas pockets and exhaust passages carried by said rotor; means to supply said pockets with an explosive fuel; a cylinder with which said pockets and passages are adapted to successively register; a reciprocating piston in said cylinder adapted to receive the force of each explosion in said pockets; a stator; a plurality of passages for the exploded gases in said stator adapted to successively register with each gas pocket; and means for exploding the fuel in each gas pocket when it registers with said cylinder, substantially as described.

12. In a gas engine the combination of a rotor; a plurality of gas pockets and exhaust passages carried by said rotor; means comprising a chamber holding gas under pressure to supply said pockets with an explosive fuel; a cylinder with which said pockets and passages are adapted to successively register; a connection between said cylinder and said chamber; a reciprocating piston in said cylinder adapted to receive the force of each explosion in said pockets and to compress the gas in said chamber; a stator; a plurality of passages for the exploded gases in said stator adapted to successively register with each gas pocket; an additional passage in said stator communicating with said cylinder and successively with each gas pocket; and means for exploding the fuel in each gas pocket when it registers with said cylinder whereby a primary impulse due to the explosion is accompanied and followed by a plurality of other impulses from the burnt gases produced by previous explosions, substantially as described.

13. In a gas engine the combination of a rotor provided with aplurality of pockets; means comprising a chamber and a connection provided with a, valve for successively charging said pockets with fuel; a cylinder successively communicating with said charged pockets; a piston in said cylinder; and ignition means adapted to successively communicate with each pocket and explode the charge therein thereby giving successive impulses to said rotor; a connection between said chamber and cylinder; and-automatic means for operating said valve, substantially as described.

141. In a gas engine the combination of a rotor provided with a plurality of gas pockets; a chamber for holding gases under pressure connected to said pockets; a valve controlling the admission of gas from said chamber to said pockets; a cylinder with which said pockets register; means for exploding the gases in said pockets when said registration takes place; a piston in said cylinder receiving the force of the explosions; means enabling said piston and cylinder to supply compressed gas to said chamber; and automatic means for operating said valve in synchronism with the movements' of said piston, substantially as described.

15. In a gas engine the combination of a cylinder; a reciprocating piston in said cylinder; a rotor provided with a plurality of gas pockets adapted to successively register with said cylinder; exhaust passages between each pair of pockets also adapted to register with said cylinder; and suction means adapted to draw burnt gases through said passages, substantially as described.

16. In a gas engine the combination of a cylinder; a reciprocating piston in said cylinder; a rotor provided with a plurality of gas pockets adapted to successively register with said cylinder; means to explode gases carried by said pockets when said registration takes place; exhaust passages between each pair of pockets also adapted to register with said cylinder; and suction means carried by said rotor adapted to draw burnt gases through said passages, substantially as described.

17. 'In a gas engine the combination of a cylinder; a reciprocating piston in said cylinder; a rotor provided with a plurality of gas pockets adapted to successively register with said cylinder; exhaust passages between each pair of pockets also adapted to register with said cylinder; a stator; a

plurality of exhaust passages carried by said stator with which said gas pockets and exhaust passages are adapted to successively register; and suction means adapted to draw burnt gases through said passages,

substantially as described.

18. In a gas engine the combination of a rotor provided with a plurality of pockets;

a chamber for holding fuel under pressure provided with a passage with WhlCh said pockets are adapted to successively register; a slide valve controlling said passage; automatic means for operating said valve; a piston and cylinder with which said pockets are adapted to successively register; an ignition means adapted to explode successive charges of fuel in said pockets when said registration takes place; and a valved connection between said cylinder and said chamber, substantially as described.

19. In a gas enginethe combination of a .rotor having gas pockets adapted to receive explosive impulses; and a reciprocating piston and connections adapted to impart additional impulses to said rotor through unexploded compressed gases, substantially as described.

20. In a gas engine the combination of a rotor having gas pockets; and a reciprocating spring pressed piston adapted to be moved in one direction by gases exploded in said pockets, and in the other direction by spring pressure and by the pressure due to compressed unexploded gases, substantially as described.

21. In a gas engine the combination of a rotor provided with gas pockets; a gas chamber adapted to admit gas into said pockets to start the motor; a piston with which said pockets successively register; means to explode the gas in said pockets when said registration takes place; and means by which said piston replenishes the gas in said chamber upon each explosion, substantially as described.

22. In agas engine the combination of a rotor; a stator; a plurality of gas pockets in said rotor; a pair of rings constituting the ends of each of said pockets; packing members located in each pocket between the outer circumference of said rings and said stator; and additional movable packing members located outside of said first named packing members adapted to seal the joint between the latter and said stator, substantially as described.

23. In a gas engine the combination of a rotor having explosive pockets; a stator provided with a cooling system; and a .piston adapted to receive the explosions from said pockets and having a passage connecting with said system; substantially as described.

24. In a gasengine the combination of a the explosions from said pockets; a gas intake communicating with said cylinder; and means to admit oil into said intake, substantially as described.

26. In a gas engine the combination of a stator provided with exhaust passages for the exploded fuel, and also with air passages to admit cooling air to the parts; a rotor provided with gas pockets and exhaust passages each .adapted to register with said first named exhaust passages; said rotor being also provided with fan members and a space with which'isaid exhaust passage carried by the rotor and said air, passages carried by said stator register, whereby cooling air may be sucked into said space and at the same time purge said pockets of burnt gases; and means for permitting said air to leave the engine, substantially as described.

In testimony whereof I aflix my signature, in presence of two witnesses.

LYMAN O. REED.

Witnesses T. EIsLER, CHARLES HARRIS.

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