WO2012115379A2

WO2012115379A2 - Gear type connection device for transmitting rotating power of rotors of rotary engine to output gear shaft

Info

Publication number: WO2012115379A2
Application number: PCT/KR2012/001041
Authority: WO
Inventors: Heon-Kyu Kim; Eugene F. DRACHKO
Original assignee: Heon-Kyu Kim
Priority date: 2011-02-21
Filing date: 2012-02-13
Publication date: 2012-08-30
Also published as: CN103502688B; CN103502688A; WO2012115379A3; KR101266438B1; KR20120095547A

Abstract

The present invention relates to a gear type connection device for transmitting rotating power of rotors (9) of a rotary engine to an output gear shaft (6) wherein in the process of transmitting the rotating power generated from the rotors (9) to the output gear shaft (6), the rotating power is bypassed to the outside through a plurality of gears not connected in a linear direction on a crankshaft (17) and is transmitted to the output gear shaft (6) disposed in parallel to the crankshaft (17).

Description

GEAR TYPE CONNECTION DEVICE FOR TRANSMITTING ROTATING POWER OF ROTORS OF ROTARY ENGINE TO OUTPUT GEAR SHAFT

The present invention relates to a gear type connection device for transmitting rotating power of rotors of a rotary engine to an output gear shaft, thereby allowing the size of the rotary engine to be substantially reduced.

A rotary engine performs a four-stroke cycle (suction, compression, explosion and exhaust) to obtain rotating power therefrom, like a reciprocating engine, but the rotary engine has a motion structure where the four strokes are induced, which is completely different from the reciprocating engine where the compression of a reciprocating piston is converted into the rotating motion of a crankshaft. That is, the reciprocating engine using the reciprocating piston performs the four strokes through the reciprocating linear motion of the reciprocating piston in a cylinder to obtain the rotating power, and contrarily, the rotary engine performs the four strokes through the rotation of a rotor serving as the reciprocating piston in a cylinder to obtain the rotating power, without having any reciprocating motion. Further, the rotary engine has a structure wherein the rotating power generated from the rotor is transmitted directly to an output gear shaft, which provides relatively higher energy efficiencies when compared with the reciprocating engine using the reciprocating piston.

In a general structure of the rotary engine, as an eccentric shaft inducing a position of a rotor is fixedly rotated on a center portion of a triangular cylinder, the rotor having an oval shape has a specific track obtained along the respective points. Thus, a cylinder chamber is formed to correspond to the specific track, and further, the rotary engine is configured to have an internal gear disposed at the rotor side in such a manner as to engage with an external gear connected with the output gear shaft and fixed to its shaft center, thereby outputting the rotating power of the rotor through the internal gear and the external gear. Moreover, the structure of the rotary engine differs in accordance with the number of cylinder chambers (cylinders).

For example, U.S. Patent No. 5,399,078 discloses a rotary piston engine using a single cylinder wherein an internal gear fixed to a rotating piston (rotor) engages with the gear fixed to an eccentric drive shaft (the crankshaft), thereby transmitting the rotating power of the rotor in a linear direction on the single center shaft to the output gear shaft.

As another example, Japanese Patent Publication No. 10-220238 discloses a rotary engine wherein an oval rotor is disposed in generally triangular internal space, and upper and lower corners are formed slidingly along the inner surface of the internal space. Further, a crank pin is disposed into a groove formed on the center of the rotor in such a manner as to be connected with a main shaft by means of a crank arm, such that the rotor is rotated in the internal space and the crank pin is driven through the rotation of the rotor, while being moved into the groove.

As still another example, Korean Patent Registration No.100034947 discloses a rotary engine having a single combustion chamber consisting of two cylindrical containers partially overlapped to each other, each container having a fixing shaft hub having a cylindrical center portion, and a single expansion chamber positioned near the combustion chamber and having the same shape like the combustion chamber and a size larger than the combustion chamber. The combustion chamber and the expansion chamber communicate with each other by means of two gas passages, and in each of the combustion chamber and the expansion chamber, a pair of gas carrying rotors each having a combustion pocket formed thereon and a pair of power rotors each having an expansion pocket formed thereon are mounted supportedly on the fixing shaft hubs having the cylindrical shape in such a manner as to be rotated in a state where they do not engage with each other or they are not contacted with each other, in the same manner as in a pumping chamber of the reciprocating piston pump. Further, at least one or more pairs of injection nozzles are disposed symmetrically to the combustion chamber housing so as to inject fuel into the combustion pockets rotated in a closed state, thereby performing constant volume combustion at a high compression ratio, without valves, and the expansion pockets have minimum dead space formed thereon so as to isolate most of combustion gas expanded in the expansion chamber from the high pressure combustion gas entering for next expansion and to exhaust most of expansion gas in the single expansion chamber at a constant pressure.

Further, Korean Patent Registration No.100510939 discloses a rotary engine having a housing in which a suction port and an exhaust port are defined through isolating plates, main shaft gears having a power transmission main shaft and disposed to engage with each other in such a manner as to be face contacted with the isolating plates, auxiliary gears disposed inside the housing in such a manner as to engage with the main shaft gears, fuel injection nozzles disposed on the isolating plates such that the suction, compression, expansion and combustion are performed on the passages through the suction port and the exhaust port during the rotation of the main shaft gears, ignition plugs mounted on the valleys of the main shaft gears, and power means adapted to apply power to the ignition plugs at the points where the main shaft gears engage with each other.

Furthermore, Korean Patent Application Publication No.1019920020061 discloses a rotary internal engine wherein two rotors fixed by means of a front side housing and a rear side housing to a center housing are overlapped up and down to each other, and the shafts at the rear side of the two rotors engage with each other through gears and rotate together with each other. The lower side rotor, that is, the power rotor has a guide vane serving as a piston disposed on the outer periphery thereof, the guide vane having an apex seal and a corner seal embedded therein, and a compressed air ejection port is formed on the rear of the guide vane. A cone roller valve mounted on the interior of the power rotor adjusts the ejection of the compressed air, while rotating by means of a cone roller valve connecting gear and a cone roller valve gear rotating around a cone roller valve drive gear insertedly fitted to a fixing shaft, and an oil tank and a gear box are attached on the external surfaces of the front side housing and the rear side housing. A cam drive chamber and an exhaust manifold are mounted on the left side of the center housing, and contrarily, a flue, an ignition plug, and a fuel injector are insertedly mounted on the right side of the center housing. Moreover, a supercharging scavenging pump is mounted on the outer side of the flue, whereby the explosion pressure of the internal engine is transmitted directly to the shaft, without any separate transmitting device.

Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a gear type connection device for transmitting rotating power of rotors of a rotary engine to an output gear shaft that is capable of preventing the device from being bulky and complicated in structure, thereby increasing a fuel consumption efficiency.

To accomplish the above object, according to the present invention, there is provided a gear type connection device for transmitting rotating power of rotors of a rotary engine to an output gear shaft wherein the rotating power generated from the rotors is transmitted to the output gear shaft and at the same time a crankshaft is rotated in a reverse direction to the rotors having an oval shape being rotated, such that the rotors perform four strokes gently and accurately in triangular cylinders.

According to the present invention, there is provided the gear type connection device for transmitting rotating power of rotors of a rotary engine to an output gear shaft wherein the rotating power generated from the rotors is transmitted to the output gear shaft and at the same time a crankshaft is rotated in a reverse direction to the rotors having an oval shape being rotated, such that the rotors perform four strokes gently and accurately in triangular cylinders and wherein an oil supply part and a suction and exhaust opening/closing valve are mounted in the shortest distance from the center of the cylinder part, thereby permitting the rotary engine to be activated without any separate power signal, such that the number of parts of the rotary engine and the size of the rotary engine can be reduced to improve the fuel consumption efficiency and to provide environmental friendly and economical advantages.

FIG.1 is a detailed sectional view showing a gear type connection device according to the present invention.

FIG.2 is a front sectional view showing the gear type connection device according to the present invention.

FIG.3 is a detailed view showing the connected state of an oil supply part, a suction and exhaust connection pipe, and a suction and exhaust opening/closing valve in the gear type connection device according to the present invention.

So as to transmit the rotating power generated from rotors to an output gear shaft, a plurality of gears are connected on a crankshaft in a parallel relation to the crankshaft, not in a linear direction thereto, such that the rotating power is bypassed to the outside and is then transmitted to the output gear shaft.

To accomplish the above object, according to the present invention, there is provided a gear type connection device for transmitting the rotating power of rotors in a rotary engine having generally triangular cylinders to an output gear shaft wherein the revolutions per minute of the output gear shaft are freely adjustable and an oil supply part and a suction and exhaust opening/closing valve as parts attached to the rotary engine are simply connected, thereby operating the rotary engine only with the gear connection, without having any external power.

Hereinafter, an explanation on a gear type connection device for transmitting rotating power of rotors of a rotary engine to an output gear shaft according to the present invention will be in detail given with reference to the attached drawings.

FIG.1 is a detailed sectional view showing a gear type connection device according to the present invention, FIG.2 is a front sectional view showing the gear type connection device according to the present invention, and FIG.3 is a detailed view showing the connected state of an oil supply part, a suction and exhaust connection pipe, and a suction and exhaust opening/closing valve in the gear type connection device according to the present invention.

According to a first feature of the present invention, so as to transmit the rotating power generated from rotors to an output gear shaft, a plurality of gears are connected on a crankshaft in a parallel relation to the crankshaft, not in a linear direction thereto, such that the rotating power is bypassed to the outside and is then transmitted to the output gear shaft.

In more detail, as shown in FIGS.1 and 2, an integrated type gear 11 separated into three parts are mounted along a crankshaft 17 between cylinders 5, and the three parts of the integrated type gear 11 are connected with each other, thereby serving to transmit the rotating power of rotors 9 to an output gear shaft 6. According to the connection structure of the three parts of the integrated type gear 11, the two parts on both sides thereof engage with two rotor internal gears 12 internally connected with the rotors 9 and the one part on the center thereof is internally and externally contacted with an eccentric internal gear 10 and is thus eccentrically driven. The eccentric internal gear 10 is an integrated concentric body with an external intermediate gear 13, and the external intermediate gear 13 is connected with a vertical parallel connection external gear 8, and the vertical parallel connection external gear 8 is connected with a parallel connection gear 7. The parallel connection gear 7 is connected with the output gear shaft 6.

According to their operating process, if the rotors 9 are activated through the explosion stroke of the compressed fuel in the triangular cylinders 5 of a cylinder part 3, the two parts on both sides of the integrated type gear 11 mounted along the crankshaft 17 are connected with the two rotor internal gears 12 and are thus eccentrically rotated. In this case, the one part on the center of the integrated type gear 11 is internally contacted with the eccentric internal gear 10 and is thus eccentrically rotated in accordance with the eccentric amount of the output gear shaft 6. Next, the external intermediate gear 13 which is externally connected as an integral body with the eccentric internal gear 10 is rotated, and thus, the vertical parallel connection external gear 8 externally contacted with the external intermediate gear 13 is rotated. At the same time, the parallel connection gear 7 which is connected on the same shaft as each other to the vertical parallel connection external gear 8 is rotated, and the output gear shaft 6 connected with the parallel connection gear 7 is thus rotated.

A start motor 100 is externally connected with gears on an output gear shaft rear side 18, under the same principle as the piston engine, and before the rotors 9 perform the explosion at the time of initial starting, the start motor 100 serves to initially rotate the crankshaft 17, thereby driving the output gear shaft 6 together with the integrated type gear 11 separated into the three parts and the rotor internal gears 12.

The integrated type gear 11 separated into the three parts has three protrusions formed by two grooves, and the three protrusions are connected with the respective different gears and driven together.

That is, the two parts on the integrated type gear 11 separated into the three parts are connected externally to the two oval rotors 9, and the one part on the center thereof is connected with the eccentric internal gear 10, such that the integrated type gear 11 is rotated together with the two rotors 9 and the eccentric internal gear 10.

According to a second feature of the present invention, the rotation of the eccentric drive shaft (crankshaft 17) in the rotary engine having the triangular cylinders 5 is performed in a reverse direction to the rotation of the rotors 9.

As shown in FIGS.1 and 2, so as to activate the rotors 9 in the rotary engine having the triangular cylinders 5, the rotating direction of the rotors 9 is necessarily made in the reverse direction to the rotation of eccentric cams 9-1 disposed as an integral body to the crankshaft 17 in such a manner as to be connected with the inside of the rotors 9. So as to perform the rotation in the reverse direction to each other, accordingly, a roller bearing (not shown) is mounted between the respective rotors 9 and the respective eccentric cams 9-1, such that the rotors 9 and the eccentric cams 9-1 are separated from each other and thus perform the reverse rotation to each other gently.

The crankshaft 17 and the eccentric cams 9-1 in the triangular cylinders 5 are rotated reversely to the rotors 9 by means of fixed type pinion connection internal gears 16 mounted in cylinder covers 21 of the cylinder part 3 and pinion gears 15 mounted along the crankshaft 17.

As shown in FIG.1, the pinion gears 15 mounted on the left and right ends of the crankshaft 17 are internally connected with the pinion connection internal gears 16 mounted in the cylinder covers 21, and when the crankshaft 17 is eccentrically rotated by means of the rotors 9, since the pinion connection internal gears 16 are fixed, the pinion gears 15, the crankshaft 17 and the eccentric cams 9-1 are rotated reversely to the rotors 9. The rotors 9 are moved along given tracks in the cylinders 5 to perform the four strokes in the reverse direction to the crankshaft 17. At this time, however, the rotating direction of the output gear shaft 6 eccentrically supporting the crankshaft 17 are the same as the rotors 9 through the

gears

12, 11, 10, 13, 8, 7 and 6 connected sequentially to each other.

Accordingly, the rotating power generated from the two rotors 9 in the rotary engine having the two or more cylinders are collected and transmitted to the single output gear shaft 6, while the rotating direction of the rotors 9 are reverse to the rotating direction of the crankshaft 17 by means of the pinion gears 15 mounted on the crankshaft 17 and the fixed type pinion connection internal gears 16 mounted in the cylinder covers 21, such that the rotors 9 in the cylinders 5 can perform the four strokes gently.

According to a third feature of the present invention, the gear type connection device is provided with a suction and exhaust opening/closing valve using the rotating power of the rotors and the gears mounted on the rotating power-transmitting shaft.

Generally, the rotary internal engine is provided with the suction and exhaust opening/closing valve so as to perform the suction and exhaust strokes in the four strokes, and the suction and exhaust opening/closing valve should need a structure capable of being operated with an accurate period in accordance with the number of times of combustion of the rotors.

As shown in FIG.3, the suction and exhaust opening/closing valve 70 is externally connected with a parallel connection gear 7 disposed in parallel to the output transmitting gear arrangement of the rotors 9. The suction and exhaust opening/closing valve 70 is disposed in the shortest distance from the cylinder part 3 and is also externally connected with the parallel connection gear 7 in such a manner as to be operated in accordance with the rotation of the parallel connection gear 7. Accordingly, the suction and exhaust opening/closing valve 70 is operated with an accurate period in accordance with the number of times of combustion of the rotors, without having any separate power signal.

According to a fourth feature of the present invention, the gear type connection device has an oil supply part disposed using the rotating power of the rotors and the gears mounted on the rotating power-transmitting shaft.

So as to provide an abrasion resistance function in the rotary internal engine, it is necessary to supply lubricating oil, and further, oil should be supplied in a sufficient amount in accordance with the rotating speed of the rotors 9.

As shown in FIG.3, an oil supply part 50 is externally connected with a vertical parallel connection external gear 8 disposed in parallel to the gear arrangement where the rotating power of the rotors 9 is transmitted to the output gear shaft 6. The oil supply part 50 and the suction and exhaust opening/closing valve 70 are disposed in the shortest distance from the cylinder part 3 and are also externally connected with the vertical parallel connection external gear 8 in such a manner as to supply oil in accordance with the rotation of the vertical parallel connection external gear 8. Accordingly, the oil supply part 50 is operated with an accurate period, without having any external power signal, such that the number of parts in the rotary engine can be reduced, thereby permitting the size of the rotary engine to be greatly decreased. According to the present invention, a given speed ratio is not defined because it is freely changeable in accordance with the adjustment of the sizes of gears.

Now, an explanation on the whole structure of the gear type connection device according to the present invention will be given with reference to FIGS.1 to 3.

The gear type connection device has the cylinder covers 21, the crankshaft 17 disposed pierced through the cylinders 5 inside the cylinder covers 21, the output gear shaft rear side 18 disposed on the rear side of the crankshaft 17, the start motor 100 connected with the rear side shaft of the output gear shaft rear side 18, the integrated type gear 11 separated into the three parts disposed fittedly to the center of the crankshaft 17, the rotors 9 having an oval shape and connected with the external surfaces of the two parts disposed on both sides of the integrated type gear 11, the eccentric internal gear 10 internally and externally connected with the one part disposed on the center of the integrated type gear 11, the external intermediate gear 13 internally connected with the external surface of the eccentric internal gear 10, the vertical parallel connection external gear 8 internally connected with the external surface of the external intermediate gear 13, the parallel connection gear 7 connected with the vertical parallel connection external gear 8 and a parallel gear shaft 14, the output gear shaft 6 connected with one side of the parallel connection gear 7, the suction and exhaust opening/closing valve 70 connected with one side of the parallel connection gear 7, a suction and exhaust connection pipe 60 connected with the suction and exhaust opening/closing valve 70, and the oil supply part 50 connected with one side of the vertical parallel connection external gear 8.

While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

Claims

A gear type connection device for transmitting rotating power of rotors 9 of a rotary engine to an output gear shaft 6 wherein in the process of transmitting the rotating power generated from the rotors 9 to the output gear shaft 6, the rotating power is bypassed to the outside through a plurality of gears not connected in a linear direction on a crankshaft 17 and is transmitted to the output gear shaft 6 disposed in parallel to the crankshaft 17.
A gear type connection device for transmitting rotating power of rotors 9 of a rotary engine to an output gear shaft 6 wherein a crankshaft 17 is rotated in a reverse direction to the rotors 9 each having an oval shape being rotated in the rotary engine having triangular cylinders 5.
A gear type connection device for transmitting rotating power of rotors 9 of a rotary engine to an output gear shaft 6, comprising:

cylinder covers 21;

a crankshaft 17 disposed pierced through cylinders 5 inside the cylinder covers 21;

an output gear shaft rear side 18 disposed on the rear side of the crankshaft 17;

a start motor 100 connected with the rear side shaft of the output gear shaft rear side 18;

an integrated type gear 11 separated into the three parts disposed fittedly to the center of the crankshaft 17;

the rotors 9 each having an oval shape and connected with the external surfaces of the two parts disposed on both sides of the integrated type gear 11;

an eccentric internal gear 10 internally and externally connected with the one part disposed on the center of the integrated type gear 11;

an external intermediate gear 13 internally connected with the external surface of the eccentric internal gear 10;

a vertical parallel connection external gear 8 internally connected with the external surface of the external intermediate gear 13;

a parallel connection gear 7 connected with the vertical parallel connection external gear 8 and a parallel gear shaft 14; and

the output gear shaft 6 connected with one side of the parallel connection gear 7.
The gear type connection device according to claim 3, further comprising a suction and exhaust opening/closing valve 70 connected with one side of the parallel connection gear 7.
The gear type connection device according to claim 3, further comprising an oil supply part 50 connected with one side of the vertical parallel connection external gear 8.