USRE14625E - moore - Google Patents

Description

R. S. MOORE.

ROTARY CYLINDER GAS ENGINE.

APPLICATION FILED SEPT. a, 1915.

v 'Reissued Apr. 1,1919. 14,625.

2 SHEETS-SHEET l.

R. S. MOORE.

ROTARY CYLINDER GAS ENGINE.

APPLICATION FVILED SEPT. 3. 191 5.

Reissued Apr-.1, 1919. 14,625.

. v I 2 SH EETSSHEET 2- 7ft" L9 10 I udden p HVWWE OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR, BY MESNE ROBERT s. moons,

AV 2 YLABLE COPY ASSIGNMENTS, '10 EMILE BER/LINER, OF WASHINGTON, DISTRICT OF COLUMBIA.

ROTARY-CYLINDER GAS-ENGINE.

Original No. 1,093,349,

To all whom it may concern:

Be it known that I, Ronnn'r S. Moore, acitizen of the ,United States, residing at Washington, in the District of Columbia, have invented certain new and useful Tinprovements in Rotary-Cylinder Gas-En gines, of which the following is a description, reference being had to the accompanying drawings and to the figures of reference marked thereon.

The invention relates to new and useful improvements in rotary engines and more particularly to engines of this type wherein there is a plurality of cylinders mounted on a rotating casing.

An object of the invention is to provide a rotary gas engine having an intake port for each cylinder'which is normally openduring-the period of intake and free from valves so as to afford an unobstructed passage for admitting the fuel or combustion gases, with a rotary member which is common to all. of the cylinders and which operates to close the intake ports at all times during the rotation of the cylinders except substantially during the period of intake for the respective cylinders.

In the drawings, which show by way of illustration, one embodiment of the invention, Figure 1 is a view partly in section and partly in side elevation showing an engine having my improvements applied thereto, Fig. 2 is a similar view showing an endview of the engine casing, parts being broken away to show the interior of the cylinders. Fig. 3 is a detail in plan of the cap plate. Fig. 4 is a detail in plan of the controlling disk or cover for the intake ports, also showing the cam'for operating the exhaust valves. Fig. 5 is a detail showing a rear view of the cover plate for the controlling disk.

The invention consists, generally, in providing a rotating casing on which is mounted a plurality of cylinders. This casing is mounted to rotate about a fixed supporting shaft which carries a crank to which the iston rods for the respective cylinders are attached. Each cylinder is provided with n intake port located adjacent the inner that it is entirely Specification of Reissued Letters Patent. Rei ued Apr, 1, 1919,

dated April 14, 1914, Serial No. 799,948, filed November 8, 1913. Application for reissue filed September 3, 1915. Serial No. 48,933. r

end of the stroke ofthe piston so that said intake port is uncovered by the piston. This intake port at the cylinder is entirely free of any valve or controllingndevices. The intake port is supplied with fuel or combustion gases from a fuel chamber 4 which according to the present embodiment of the invention is the crank casing. A rotating member operates to cover or close the passages leading from the intake ports to the. crank casing except during the period of intake for the respective cylinders. In other words, the passage leading from each cyllnder to the crank casing is uncovered so free from obstruction of any character just prior to the time when the piston uncovers the port of that articular cylinder so that the fuel or com us-- tion ases may be drawn quickly into the cylin er by reason of the vacuum created in the cylinder during the instroke of the piston.

Referring more in detail to the drawings, in Fig. 1 I have shown a fixed shaft 1 on which is mounted a rotating sleeve 2 carryin a crank casing 3. The shaft 1 is provi ed with a crank 4. The crank asherein shown, carries three cylinders 4, 5 and 6. In each cylinder there is a piston 7 to which is connected a piston rod 8. The piston rods in the various cylinders are connected to the crank 1 and as the pistons move back and Q forth in the cylinders, said cylinders and the casing are caused to rotate about'said crank. The crank casing and the connection with the cylinders forms a substantially closed chamber from which the fuel or combustion gases are fed to the engine cylinders.

Each cylinder is provided with an exhaust valve 8. which operates to close the exhaust port in the outer end ofthe cylin-- der. This exhaust valve is preferably connected to a lever 9 which is fulcrumed at '10 to a bracket carried by the engine cylinder, and the lever 9 is in turn pivoted to a-rod- 11 connected at its other end to a shoe--12 adapted to engage cam projections 13- and 14 on the sleeve 15. This sleeve is rota-- tively mounted so as to turn independent of the crank casing and is operated by a suitable differential mechanism which turns-the sleeve seas tolbring about an openingand closing of the exhaust valve in proper ti mingjfor the usual four cycle engine.

etch-cylinder is provided with an intake port lif iw A- pipe 17 leads from eachzintake port to the crank casing which forms as herein shown the fuel chamber. 4 A c ap plate 18 is fixed tothe crank casing and is formed with three equally spaced openings 19. The

crank casing is also a 20 registering with sleeve is formed provided with openings with F :disk 21 which the openings" 19. Therests against the cap plate 18. A cover plate engine casing and said cover, oi erlapsnthe disk 21 and 1s provided with'thiee openings 23, which are arranged a t in line with the openings 19 and 20. Y The pipes'17are fined tothe coyer22 diskt21, which is located between the cover and the cap plate 18, there is a free unobstrn'cted' assagepleadihg from the crank casingthrough thefopen'ings 20 and 19 and the formedlwith two elongated openings 24 and 25 which are diametrically opposite each otherand' which are located between; the

valv H ese' longatecl'openings 24: and 25 ar used to" register {at certain time one after the other with certain of theopem g3 24 er 25 are in iegisteruwith' tings; 1'9, QOand "23 then there isa free passage from the crank casing through thepipe i 17 *toone offthecy'linders, At this time t di'sk'21 operates as a gate orslnitter for casing tdthe other cylinders.

ierettat d at a difl'erentialspeed relative to the,

Rotation of the engine cylinder'so "that ome et the openings therein will uncover thepass'age leadingto the cylinder ready for I so as to reg ister with the openings 23; Except for the cains'" 1 3* andfl' l which actuatethe exhaust 19 and When either of these e ehthe open closing the passages leading them the crank This disk 21 tak thew supply of fuel or combustion gases ust prior to the uncovering of said intake/passage by the downward stroke of the intake passage there will he a free unobstiiic "passage for-the inrushing of the fuel cf the combustion gases. At this time the passages leading to the other cylinders are closed orcut ofi by thedisk 21. a h i a The o eration cf improved engine is 's ff hows starting with the cylinders in the pesitien-shown inF ig.2: and co sidering the engine as rotating in thedireetion of the arrew; T

, he cylinder 4has just completed the 'gi'zhau t "and the exhaust valve is; stillfopen theexheuet valve; Dring the first-pert ef theinward stroke of the piston air is drawn n ihtofthe eylinder-after which the cam 13 th plstb so-that when the piston; uncovers r a on ef the fact that the cam is. still engagement with the; shoe 12 which opens istantly moving away from t This provides a free 'The cylinder 5 has casing and causing back firing. i 7 above describedtion to the operatin valves" andare, there ore, always ma ntained to the operation of passes from underneath theshoe 12 as the engine casing is rotating at a greater speed thanthe sleeve carrying the'cam lau" Asthe cylinders are rotatin they are con! e burnt gases which are expelled through-the part ofthe inwarcl stroke of the piston i'resh air surrounding the exhaust portwill be drawn into the 1 cylinder. Furthermore,

,Where the exhaust port is held open during a part ofthe inward stroke of the piston there (is very much less resistance 'tc over comein the reclproc'atlon of the iston than i in the type of enginewhere the eX aust valve is closed and the piston is creating a vacuum duringits entire inward stroke. :Itiswell known thatin' rotary cylinder engine centrifugal force aids in the carrying of the fuel outward into the cylinder and very little suction is necessary therefore; able tohold the exhaust Valve open duringa'pafrt of the inward stroke of i the piston and still supply suflicient fuel to the cylinders when the intake ports are open.

Iii a three c linder engine, such as shown 1n the draw1ngs ,[the engine casin will i"otat'e threextihieefor very two revo utions of the cam sleeve'13. As seen as the exhaust valve closes a further ihwardtmeiveihent of the 'piston will create a'yacuii-in ihthe 'c'y'linde'rq Tl' epi'pe 17 is carried by the engine" casing and the openings in the cover plate and; cap are gradually evereeming the elen ated openings 24in the shutter or. disk and when the cylinder 4: reaches the position where the pistentnee vers theihteke port 16, said elongated opening 24- brought into register with the openings 2-3, seen-c119. unobstructed passage between the engine casing and the cylinder sothatas s enes the piston uncovers said intake port the fuel orcombu'stion gases will i it i be dra'wn "with force into the ylinder hy the 1 vacuum created thereii The elengatedopening 24 remeii'is register with said penings preferably until after, the piston begins its outwardstreke for compression piston ie prac'ticelly at the end of-the pension stroke.

chance of a; passing from the cylinder the elc gated openings, -24: have a fixed rele;

cams; forth in proper timed relation the exhaust valves. I may, if desired; mount exhaust port As the exhaust valve is held open during a h h to carry sufficient fuel into the cylinder for the charge. I am,

just been fired "and the 7 the shutter so that it may be shifted relative to its actuating sleeve so as to partly close the passage leading from the intake port for ahrottling the engine and for reducing s ee While I have shown my improved intake control as applied to three cylinder engines, it will be understood that the same may be used in connection with the multiple cylinder engine having. any desired number of cylinders.

It will be understood that minor changes in the details of construction and arrangement of parts may be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus described my invention, what I claim is:

1. A rotary gas engine including a plurality of cylinders, a piston for each cylinder, an intake port for each cylinder adapted to be uncovered by the piston during the intake period, means formin a passage conuecting the intake port of each cylinder with a supply chamber, a rotating member for closing the passages leading to the intake ports, said rotating member having means for uncovering one of said passages at a time, and means for rotating said member in the same direction as the cylinders and at a differential speed relative thereto, whereby said intake passages are uncovered substantially during the period of intake for the respective cylinder.

2. A rotary engine including a plurality of cylinders, av piston for each cylinder, an intake port for each cylinder adapted to be uncovered by the piston during the intake period, means formin a passage connecting the intake port of eac li cylinder with a suply chamber, a. rotating member located ad- ]acent the supply chamber and away from der, means forming a passage connecting the intake port with the casing, a rotating member for closing the passages leading from the casing to the intake ports, said member having means for uncovering one of said passages at a time and substantially during the period of intake for the cylinders.

4. A gas engine including in combination a rotary casing, a plurality of cylinders carried thereby, an intake port for each cylinder adapted to. be uncovered by the piston, a pipe leading from each intake port to the casing, a rotating disk for normally closing the passage from the casing to the pipes,

said disk having elongated openings therein adapted to register in turn with the passages leading to the pipes, and means for giving said disk a difierenftial movement relative to the cylinders whereby the passage leading to each cylinder will be uncovered at every other revolution of the casing and substantially during the intake period for the cylinder.

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

ROBERT S. MOORE.

Witnesses:

E. G. MASON, B. B. THOMPSON.

copies of this patent may be obtained for five cents each, by addressing the Commissioner or ramm, Washington, D. 0."

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