US1340527A

US1340527A - Combination reciprocal and turbine internal-combustion engine

Info

Publication number: US1340527A
Application number: US301823A
Authority: US
Inventors: Frank E Covey
Original assignee: HOWARD L COVEY
Current assignee: HOWARD L COVEY
Priority date: 1919-06-04
Filing date: 1919-06-04
Publication date: 1920-05-18
Anticipated expiration: 1937-05-18
Also published as: FR514281A

Description

F. E. COVEY.

COMBINATION RECIPROCAL AND TURBINE INTERNAL COMBUSTION ENGINE. APPLIICATION FILED JUNE 4.1919.

1,340 Patented May 18, 1920.

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n a "a h l a H $4 Q Q k N I 1| i Q a 7; x Q Q u. umuwu -S [fave-29401 ATTORNEYS UNITED STATES PATENT OFFICE.

FRANK E. CO VEY, OF SAN FRANCISCO, CALIFORNIA. ASSIGNOR OF ONE-FOURTH TO HOWARD L. COVE-Y, F OAKLAND, CALIFORNIA.

COMBINATION RECIPROCAL AND TURBINE INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented May 18, 1920.

Application filed .Tune 14, 1919. Serial No. 301,823.

To all whom it ma concern:

Be it known t at I, FRAnK-E. bovnY,-

' a citizen of the United States, residing at the city and county of San Francisco and State of California, have invented new and useful Improvements in Combination Reciprocal and Turbine Internal-Combustion Engines, of which the following is a specification.

This invention relates to a combination reciprocal and turbine internal combustion en ine.

ne of the objects of the present invention is to' provide an internal combustion engine of the reciprocating piston type and in conjunction therewithto provide means for utilizing the energy remaining in the exhaust gases when discharging from the cylinders.

Another object of the invention-is to provide a fly-wheel of novel construction, on the outer surface of which is formed a series of vanes or pockets, and to so arrange the fly-wheel that the'exhaust gases, when liberated,'may be directed against the vanes of the wheel in such a manner that an impact and an expanding action may he obtained, thereby materially increasing the power output and simultaneously obtaining a muifling action. i

Another object ofthe invention is to provide novel means for air cooling the cylinders and the fly-wheel rim, against which the exhaust gases are directed.

Further objects willhereinafter appear. The invention consists of the parts and the construction, combination and arrangement of parts as hereinaftermore fully described and claimed, having reference to Fig. 2 is a central vertical cross section through the same. i

Fig. 3 'is a side elevation in section.

Referring to the drawings in detail, A indicates a casing, interior of which is mounted a fly wheel 2. Forming a closure for the casing is a pair of head members 3 and 4, and formed in said head members are bearing members 5 for the reception of a crank shaft 6, upon which the fly wheel is secured. The fly wheel is centrally disposed between the cranks indicated at 7 and is entirely inclosed by the casing A and the head members 3 and 4. Formed on the outer I end of the cylinder is open,

surface of the fly wheel are a series of pockets 8 and formed on each side of the fly wheel are a plurality of vanes 9, the function of which will hereinafter be described. Secured to the casing A in any suitable manner is an inverted cylinder 10, on the exterior surface of which is formed a plurality of cooling ribs 11. The upper as shown, and each side is slotted, as at 11, to. permit free movement of a cross head 12, to which is attached a piston 13. Forming a connection between the cross head and the crank 7 are a pair of connecting rods 14, one being ilisposed on each side of the cylinder, and disposed in the lower end of the cylinder is an inlet valve 15 and an exhaust valve 16. Both valves shown are of the puppet valve 'type and both are normally maintained in a closed position by means of coil springs 17. The'inlet valve is in this instance opened by vacuum created in the cylinder during the outward stroke of the piston while the exhaust valve is mechanically opened by means of a rocker arm 18. This rocker arm is pivotally mounted on the head member 3, as at 19, and the lower end is provided with a roller 20 which engages a cam 21 secured on the cam shaft 22, which is driven in the usual manner at the ratio of 1 to 2, from the crank shaft by means of the spur gears 23.

The engine here shown is intended to operate on the four-cycle principle; hence, the gear ratio shown. For the purpose of efliciently cooling the engine, I form a series of openings 24:, which are arranged about the bearing members 5. These openings communicate with the chamber formed within the casing A, thus permitting air to enter said chamber when the engine is in operation, an air flow through the chamber being induced by the action of the vanes 9 formed on each side of the'fly wheel. The air induced is discharged through ports 24 formed at the upper end of each head member 3 and to discharge directly through the port in such a manner that they will impinge against the vanes or pockets formed on the outer surface of the fly wheel. An impact action is in this manner obtained and also sufficient expansion to gradually reduce the pressure of the gases. Additionalpower is therefore ained and a silencing or muflilng action is urther obtained as the pressure of the gases, when discharging, is gradually reduced.

In actual 'operation, 1 connect the inlet valve casing 15 with a carbureter or other suitable source of supply. The valve 15 is opened during the suction stroke of the piston and a charge is therefore introduced which is compressed during the return stroke of the piston. This compressed charge is ignited by means of a spark plug 31, thus causing an explosion or burning of the gases, which causes the piston to be forced in an outward direction. On the return stroke of the piston, exhaust valve 16 is mechanically opened by means of the cam 21 andthe rocker arm 18. The gases are therefore bypassed through the cage containing the exhaust valve and are then permitted to escape through the port 30 and to discharge and impinge directly against the pockets or vanes formed on the outer surface of the fly wheel. The gases are then carried around as each pocket is filled, and are finally permitted to escape into a chamber 32, from where they may be discharged through a passage 33 and an exhaust pipe not here shown. The exhaust gases striking the outer surface of the fly wheel and more pockets formedtherein, would-.have a-tendency ,to heat the same and the casing in which it is inclosed. This is, however, obviated in the present instance. as the forced circulation of air obtained by the action of the vanes 9 positively cools the fly wheel and also the cylinder mounted above the same.

at least four cylinders may .be attached thereto. I have, however, only illustrated one cylinder but I wish it understood that four cylinders or any suitable number, may be arranged around.th e casing A and that or less filling the the power obtained may be transmitted, first, to the pistons, and secondly, to the rim of the fly wheel, thus materially increasing the.

power output of the engine and simultaneously obtaining a silent and well-balanced engine, the silent action being obtained due to the fact that exhaust ases are permitted to gradually expand ag inst the.fiy wheel before they are finally permitted to discharge.

While the inlet valve is here shown as actuated by the suction of the engine, I wish it understood, that it may be mechanically operated. Similarly, that any suitable fornr of valve mechanism may be provided and also that the materials and finish of the several parts comprising the engine may be such as the experience and judgment of the manufacturer may dictate.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. An internal combustion engine comprising a casing, a rotor journaled therein having a plurality of pockets formed in its outer face, an inverted cylinder secured to the exterior of the casing and radiallyarranged withrelation thereto, a crankshaft upon which the rotor is secured, a piston reciprocally mounted in the cylinder, a connecting rod connectionbetween the piston and the crank shaft, an inlet and an exhaust valve in the inner end of the cylinder adjacent the casing, and means for directing the exhaust gases against the pockets formed in the face of the rotor.

2. An internal combustion engine comprising a cylinder, a crank shaft, a piston in the cylinder, means for transmitting reciprocal movement of the piston to rotate the crank shaft, arotor on the crank shaft, vanes formed 'on the exterior of the rotor, means for directing the exhaust gases from the cylinder against the vanes on the rotor,

a L r l in the casing, a head member on each side -of the casing forming a closure for the chamber in which the fly wheel is mounted, bearings formed in said head members, a

crank shaft extending through said bearing members and'supporting the fly wheel,

I said crank shaft having cranks formed at By referring to Figs. 1 and 3, 1t will be' seen that the casing'A is so constructed that each end exterior of the head members, a cylinder radially disposed with relation to the casing and the crank shaft, a piston in said cylinder, connecting rods connecting the piston with the-cranks and the shaft, an inlet valve and an exhaust valve communicating with the cylinder, a passage formed the casing and the with in the casing connecting the exhaust valve a chamber formed within the eas- 1ng, and a series of pockets formed on the surface of the fly wheel against/which the exhaust gases discharging through the passage are adapted to impinge.

4. ,An internal combustion engine comprising a casing, a fly wheel mounted within the casing, a head member on each side of the casing forming a closure for the chamber in which the fly W eel'is mounted, bearingsformed in said h ad members, a crank shaft extending through said bearing members and supporting'the fly wheel, said crank shaft having cranks formed at eachend exterior of the head members, a cylinder radially disposed with relation to said cylinder, connecting rods connecting the piston with the cranks and the shaft, an inlet valve and an exhaust valve communicating with the cylinder, a passage formed in the casing connecting the exhaust valve with a chamber formed within the casing, a series of pockets formed on the surface of the fly wheel, against which the exhaust gases discharging through the passage are adapted to impinge, a series of cooling ribs formed on the exterior surface of the cylinder, a series of impeller vanes formed on each side of the flywheel, inlet openings and discharge openings formed in the head members on each side of the fly wheel, through which air is adapted to be circulated by the impellers and discharged against the cooling ribs on the cylinder.--

5. An internal combustion e ngine com-' prising a casing having a chamber formed therein, a head member formed at each end of the casing forming a closure therefor, journal members formed on said! head members, acrank shaft extending through the journal members and the chamber, a, .fly wheel secured on the shaft within thechamr, a crank formed on crank shaft exterior of the head members,

an inverted cylinder secured to the casing and radially disposed, a piston in said cylinder, a cross head supporting the piston, a pair of connecting rods disposed one at each end of the cross head and forming a connection between the cranks and the cross head, an inlet and an exhaust valve disposed in the cylinder, a passage connecting the exhaust valve with the interior ,chamber,

and a series of pockets formed iii the faceof the fly wheel, against which gases are adapted to impinge.

/ 6. An internal prising a casing having a chamber formed therein, a head member formed at each end of the casing forming a closure therefor, journal members formed onsaid head members, a crank shaft extending through the journal members and the chamber, a fly the exhaust of connecting rods crank shaft, a piston in each end of the combustion engine comwheel secured on the shaft within the cham-.

ber, a crank formed on each end of the crank shaft exterior of the head members, an inverted cylinder secured to the casing and radially disposed, a piston in said cylinder, a cross head supporting the piston, a pair disposed one at each end of the cross head and forming a connection between the cranks and the cross head, an inlet and an exhaust valve disposed in the cylinder, a passage connecting the exhaust valve with the interior chamber, and a series of pockets formed in the face of the fly wheel, against which the exhaust gases are adapted to impinge, inlet and discharge ports formed in the head members on each side of the fly wheel and a series of impeller vanes formed on each side of the fly wheel, adapted to induce a flow of air through the chamber formed in the casing and discharge the same upwardly against the cylinder, and cooling ribs formed on the cylinder.

7. An internal combustion engine .comprising a casing, a circular chamber formed therein, a crank shaft'journaled i the casing, a rotor on the shaft within t ecasing, said rotor having a plurality of pockets formed" in its outer face, an inverted cylinder supported on the casing, a piston reciprocally mounted therein, means for transmitting the reciprocal movement of the piston to rotate the crank shaft, an exhaust and an inlet valve on the inner end of the cylinder adjacent the casing, and a port,

internal combustion engine com-,

prising a casing having a central chamber formed rotor for inducing and directing a cooling current of air.

9. An internal combustion engine com prising a casing, a circular chamber formed therein, a crank shaft journaled inthe casing, a rotor on the shaft within the casing,

said rotor having a plurality of pockets formed in its outer face, an inverted cylinder supported on the casing, a piston reciprocally mounted therein, means for transmitting the reciprocal movement of the piston to rotate the crank shaft, an exhaust and an inlet valve on the inner end of the cylinder adjacent the casing,

therein, a rotor in said chamber-having pockets formed in its outer periphery,

the face of the rotor, and means on the sidesof the a port formed in the casing forming a communication beformed adjacent the head of the cylinder tween the exhaust valve and the chamber through which the air may be forced outwithin the casing, said port adapted to diwardly against the wall of the cylinder. rect the exhaust gases against the pockets In testimony whereof I have hereunto set 5 formed in the surface of the rotor, means my hand in the presence of two subscribing 15 for liberating the exhaust gases after they Witnesses.

have impinged against the rotor, a plural- FRANK E; COVEY. ity of vanes formed on the interior of the Witnesses: I rotor, inlet ports formed in thecasing ad- JOHN H. HERRING,

10 facent the hub of the rotor, andbutlet'ports THos. CAsTBERG.