US683705A - Rotary gas-engine. - Google Patents

Description

,. J. W. PLIMPTDN.

ROTARY GAS ENGINE. (Application filed Apr. 25, 1900.)

(No Model.) 2 Sheets-Sheet I.

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No. 683,705. v Patented net. I, new.

J. w. PLIMPTDN.

ROTARY GAS ENGINE.

(Application filed Apr. 24, 1900.) lo Model.) '2 Sheets-Sheet 2.

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JAMES W. PLIMPTON, OF OIL CITY, PENNSYLVANIA.

ROTARY GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 683,705, dated October 1, 1901 Application filed April 24, 1900.

To all whom, it 111.04g. concern:

Be it known that I, JAMES W. PLIMPTON, a citizen of the United States of America, residing at Oil City, in the county of Venango 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 useful improvements in gas-engines; and it aims to construct an engine of this character to overcome the uneven irregular power production and transfer which is usual in en gines of this class.

The invention further aims to construct an engine which shall be extremely simple in construction, strong, durable, efficient in its operation, and comparatively inexpensive to set up.

The invention consists in the novel construction, combination, and arrangement of parts to be hereinaftermore fully described, and specifically pointed out in the claims.

In describing the invention in detail referonce is had to the accompanying drawings, forming a part of this specification,and Wherein like numerals of reference indicate correspondin g parts throughout the several views, in which Figure 1 is an end View of my improved engine. Fig. 2 is a side view thereof. Fig. 3 is a longitudinal sectional view thereof. Fig. 4 is an end view, partly broken away, showing one end of the housing in vertical section. Fig. 5 is a Vertical sectional view of one portion of the drive wheel or disk, showing the explosion-chamber. Fig. 6 is a longitudinal sectional view of the sliding-plunger abutments. Fig. 7 is a perspective view thereof. Fig. 8 is a sectional View taken on the line 8 8 of Fig. 5. Fig. 9 is an enlarged vertical sectional view of one end of the housing. Fig. 10 is an enlarged vertical sectional view of the igniter.

Referring to the drawings by reference-numerals, 1 and 2 indicate the sections of the housings, mounted upon a suitable base 3. Each of the housings has formed integral centrally thereof with their outer faces an auxiliary housing 4, provided near the top thereof with a longitudinal opening 5, which extends entirely through the same. The sections of the housings are suitably secured to Serial No. 14,162. (No model.)

5 of the auxiliary housings are the slidingplunger abutments 1O 11, the plunger 10 having one face formed with a tenon 12, which is adapted to be seated in the cylindrical recess 13, formed in the meeting face of the plunger 11. The plungers are each'provided with a spring-pressed packing,which consists of two pieces of suitable flexible material 14, connected together by the spring 15. This packing is seated within a suitable opening 16, arranged near the inner face of each of the plungers, and serves to prevent the explosive mixture passing around the plungers when the latter are within anyone of the explosion-chambers of the drive-wheel 7.

Mounted upon the base3 are a pairof standards 17, having journaled in their upper end by means of bearings 18 the drive-shaft 19, 8o which has suitably keyed thereon a drive wheel or disk 7 Secured to the drive-shaft 19 at each side of the disk 7 are the collars 20, each of which is provided with an oppositely-arranged cam-groove 21.

Mounted upon each of the auxiliary housings 4 isa pair of uprights 22, to which is fulcrumed by means of the pin 23 an operatinglever 24. One end of this lever 24 is arranged within the cane-groove 21, while the opposite end extends down through the slot 8 and is connected to the outer end of the sliding plungers, as at 25. Arranged-upon the drive-shaft 19, at each side of the drive wheel or disk 7 are the gear-wheels 26, which 9 5 mesh with the gear-wheel 27, supported by the bracket 28, mounted upon the auxiliary housing. The outer face of the gear 27 has suitably connected thereto, as at'29, the piston-rod 30, carrying a piston-head 31 of the feed-cylinder 32. This cylinder 32'is suitably secured to the upper face of the auxiliary housing 4, as at 33. Each of the auxiliary housings 4 is provided with an inlet-port 34, which is connected to a suitable source of air and gas supply or other explosive mixture and opens at its inner end into the feed-cylinder 32. The inner end of each of these ports is closed by means of the valve Each of the auxiliary housings is further provided with an igniting-chamber 36, connected by means of the port or passage 37 to thefeed-cylinder 32. The upper end of this port or passage 37 is closed by a suitable flap-valve 38. The arrangement of the valves 35 and 38 is such that on the downstroke of the piston the valve 38 opens and the valve 35 closes. The operation of the valves is reversed on the upstroke of the piston.

Extending down through each of the auxiliary housings is an electrical igniter 39, which is operated by trip-lugs 40 coming in contact therewith and completing the electric circuit formed integral with the sides of the drive wheel or disk 7. This electric igniter may be of any desired construction. The drive wheel or disk 7' is cast solid and the rim thereof provided with a pair of ridges 4:1, suitably spaced apart and further provided with diametrically opposite openings 42, forming a pair of explosion-chambers. The innor faces of the sections 1 and 2 of the housings are cast with an annular recess, so that the rim of the wheel when operating through the housings will fit neatlywithin the recess, as shown in Fig. 3. The inner face of each of the sections of the housings is further provided with a suitable packing 43, which engages the rim of the wheel as the same passes therethrough. This packing may be of any preferred construction and is indicated in dotted lines in Fig. 4:. One of the walls of each of the explosion-chambers is tapered, as at 4.4.

The operation of my improved engine is as follows: Assuming that the piston has been brought to the position as shown, the explo sive mixture drawn into the feed-cylinder, the valve 35 being open, as indicated in dotted lines, the drive-wheel being revolved will transfer motion by means of the gearwheel '26 to the gear 27 to the piston-rod,

causing the same to force the piston downwardly, closing the valve 35, opening the valve 38, discharging the explosive mixture by means of the passage 37 into the ignitingchamber 36, and when the explosion-chamber of the Wheel or disk registers with the igniting-chamber 36 the explosive mixture will be forced into the explosion-chamber 42. During this operation the levers 22 will force the plungers together, as shown in Fig. 3, and as soon as the plungers arrive at such position the trip-lug will engage the igniting mechanism and explode the charge, the force thereof revolving the wheel and imparting motion to the drive-shaft 19. As the driveshaft revolves the plungers will be drawn from the explosion-chamber of the wheel or disk, so that they will not interrupt the passage thereof. This operation is caused by means of one end of the lever operating the cam-groove 21. Of course it will be evident that one or more explosion-chambers can be arranged in the wheel, if desired, and the trip-lugs arranged in proper position thereto, so that the ignition of the explosive charge will take place at the proper time.

It is thought the many advantages of my improved gas-engine can be readily understood from the foregoing description, taken in connection with the accompanying drawin gs, and it will be noted that various changes may be made in the details of construction .without departing from the general spirit of my invention.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, isv 1. In a gas-engine, a pair of housings connected together,auxiliary housings formed integral therewith, and provided with a longitudinal opening, a drive-shaft, a drive-wheel carried by said shaft and operating between the housings, explosion-chambers formed in the rim of said wheel, a pair of feed-cylinders mounted on the housing and connected to a suitable source of explosive supply, pistons arranged in said cylinders,gearingconnecting said pistons of said cylinders to the driveshaft, ports connecting the feed-cylinders with the explosion-chambers in the drivewheel, an igniter carried by the housing, and means carried by the drive-wheel for engagement with the igniter to explode the charge, a pair of plnnger-abutments operating in the longitudinal opening in the housing and in the explosion-chambers of the drive-wheel, and pivoted operating-levers having their one end connected to the plunger-abutments,

means carried by the drive-shaft for actuating the levers and operating the said plungers,

substantially as described.

2. In combination with a pair of housings connected together and provided with auxiliary housings having a longitudinal opening, a drive-shaft, a drive-wheel mounted on said shaft and provided in its rim with explosionchambers, feed-cylinders mounted on said housings, pistons geared to said drive-shaft, said cylinders being connected to a suitable source of explosive supply, ports connecting said cylinders with the explosion-chambers, and valves arranged in said ports for controlling the passage of explosive mixture to the explosion-chambers, an igniter in communication with the explosion chambers, means carried by the drive-wheel for operating said igniter, a pair of plunger-abutments operating in the longitudinal opening of the housing, and spring-pressed packing carried by said abutments, pivoted operating-levers connected to the abutments, and means carried by the drive-shaft for operating said levers, substantially as described.

In testimony whereof I afiix my signature in the presence of two witnesses.

JAMES W. PLIMPTON.

Witnesses:

JOHN NOLAND, N. L. BOGAN.

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