360 Degree Combustion Rotary Engine With Zindler Curve Ring Gear

Title: 360° combustion rotary engine with a Zindler curve ring gear
A 360° combustion rotary engine with a triangular rotor featuring inner Zindler curve ring gear is disclosed. Said engine comprises of triangular rotor featuring inner Zindler curve shaped ring gear (61); a planetary spur gear (79) configured to mesh with said Zindler curve shaped ring gear, wherein said planetary gear also meshes with a static centre spur gear (78); a rotatable circular casing (50) concentrically encompassing the rotor, wherein a combustion chamber is formed in the space between the casing and rotor; and circular covers (67,74) fixed to the sides of said casing respectively to form an air-tight closed structure.
FIG.1

Description:[0022] The preferred embodiment of the present invention will now be explained with reference to the accompanying drawings. It should be understood however that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. The following description and drawings are not to be construed as limiting the invention and numerous specific details are described to provide a thorough understanding of the present invention, as the basis for the claims and as a basis for teaching one skilled in the art how to make and/or use the invention. However, in certain instances, well-known or conventional details are not described in order not to unnecessarily obscure the present invention in detail.

[0023] The preferred embodiment of the present invention discloses a 360° degree combustion rotary engine with a triangular rotor featuring inner Zindler curve ring gear. Said engine is a petrol engine, even though it may be adapted to work in other fuels as well.

[0024] Referring to FIG.1 and FIG.3, the 360° degree combustion rotary engine comprises of an equilateral triangular rotor (60) having a Zindler curve shaped ring gear (61) on its inside surface, wherein a planetary gear (79) is so-disposed to mesh with said ring gear, wherein said planetary gears also meshes with a static central spur gear (78). The centre spur gear is mounted on a shaft (77), wherein one end of said shaft is disposed through a hole (70) provided on the side cover on the output side, wherein it is movably fixed on said covers by means of bearings. FIG.2 depicts the exploded view of the internal combustion engine. FIG.6 shows the central spur gear and shaft. FIG.7 illustrates the cover.

[0025] As shown in FIG.1, the central spur gear is stationary, wherein said stationary central spur gear is provided to facilitate the rotor to trace an eccentric path when it turns. Specifically, the planetary spur gear is configured to simultaneously mesh with the centre spur gear and the Zindler curve shaped ring gear of the rotor, wherein as the the rotor turns, it follows an eccentric path around the centre spur gear (78). The planetary gear shaft is fixed to the rotor covers (74).

[0026] FIG.3 illustrates the equilateral triangular rotor with Zindler curve shaped ring gear corner seals are provided on both sides of the equilateral triangular rotor casing to prevent any kind of gas leakage from the combustion chambers during the combustion process. As shown in the figure, the thickness of the rotor is same in all directions. Such a design helps to keep the overall weight of the rotor less. Said design also aids in cooling the rotor during operation, and helps to easily apply lubrication, whenever required. The present invention uses a rotor cooling mechanism that utilises either water or air (gravity centre).

[0027] As illustrated in FIG.1, the rotor is encompassed inside a circular rotor casing (50), wherein a combustion chamber is formed in the space between the casing and the rotor. As an improvement or modification, the present patent of addition provides a casing that is is configured to rotate along with the rotor, but at different angular velocities, which is in the ratio of 3:1. I.e. for every 360° rotation of the casing, the rotor turns by 120°.Two circular covers (74 and 67) are fixed to the sides of said casing (50) respectively to make it an air-tight closed structure, as shown in the figure. Inlet (54) and exhaust ports (56) are provided on the casing for the intake and exhaust of gases respectively. The casing further features a provision for installing one or more spark plugs to aid the combustion of the fuel in the combustion chamber. In one embodiment, the engine features one spark plug (52).

[0028] Referring to FIG.2 or FIG.4, the electric circuit powering the spark plugs is partially provided on the casing, wherein continuity of said circuit is ensured by means of a carbon brush (57) arrangement. Specifically, an electric carbon brush is provided, wherein said brush remains in constant contact with a concentric copper ring mounted on the axis, therein facilitating the continuity of said electrical circuit even during the operation of the engine. The power to operate the spark plug is provided by the magnetic coil (59), wherein said coil is fixed at the outside of the rotor casing, as shown in the figure. The magnetic coil is encompassed in a rotatable outer casing fixed on the output shaft.

[0029] Referring to FIG.4, the rotation of the rotor (60) is balanced by means of a ball-groove mechanism (65). The steel balls (66) fixed at the centre of each edge of the rotor is configured to roll through the oval path/grooves (72) provided on the rotor covers, wherein said movement of the balls in the grooves helps the rotor to maintain its rotation along an oval shaped path (72), which keeps it stable. In one embodiment, the shape of the grooves is distorted oval. The shape of the grooves vary with overall size of the rotor. Said ball-groove mechanism aids in causing the radial load to exert only on the faces of the equilateral triangular rotor.

[0030] Referring to FIG.1, the speed of the engine may be fixed at the time of design by varying the diameter of the spur gear as well as the central spur gear. If the diameter of centre spur gear is increased (with proportional decrease in the diameter of spur gear), there will be a corresponding increase in the number of teeth cuts on said gear, and thereby a decrease in the time taken for one complete revolution and hence decreased output drive speed, and vice versa.

[0031] Many IC engines in the prior art does not have this speed controlling feature owing to the lack of gear driven mechanism.

Operation

[0032] The preferred embodiment of the present invention teaches a 360° degree combustion rotary engine with a triangular rotor featuring inner Zindler curve ring gear. As illustrated in FIG.5, the working cycle comprises of four strokes: i) Suction stroke, which completes in 0°-360°of casing rotation, ii) compression stroke that completes in 0°-360°of casing rotation, iii) expansion stroke that completes in 0°-360°of casing rotation, and iv) exhaust stroke, which completes in 0°-360°degree of casing rotation.

[0033] The motor is started using self-motor, which rotates the shaft causing the casing to rotate, therein inducing rotation on the planetary gear, which in turn turns the Zindler curve shaped ring gear and hence the rotor. As per the preferred embodiment, the relative speed of rotation of the casing and the rotor is 3:1. That is, for every 360° rotation of the planetary gear, said gear runs over 20 teeth of the inner ring gear of the rotor.

[0034] As an improvement or modification to the subject matter of the parent patent (number are recited above), the present invention by way of modification of improvement improves the operating efficiency of said engine by 48%. During the suction stroke, fuel is sucked into the combustion chamber, wherein the suction stroke completes in 0°-360°of casing rotation. The compression stroke completes in 0°-360°of casing rotation. Subsequently, the expansion stroke commences, wherein the fuel is ignited by the spark plug, wherein the said stroke completes in 0°-360°of the casing rotation. The exhaust stroke subsequent to expansion also completes in 0°-360°of casing rotation. Therefore, every stroke in the rotary engine of present invention happens over 0°-360°of the casing rotation.

[0035] The rotation of the rotor causes the planetary gear to rotate, wherein said rotation of the planetary gear causes the side covers and hence the casing to rotate, wherein said rotation is transferred to the central shaft at the output side.

[0036] Although the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be noted that various changes and modifications are possible and are apparent to those skilled in the art. Such changes and modifications are to be understood as included within the scope of the present invention unless they depart there from.
, Claims:I CLAIM

1. A 360° combustion rotary engine comprising of:
• triangular rotor featuring inner Zindler curve shaped ring gear (61);
characterized in that:
• a planetary spur gear (79) configured to mesh with said Zindler curve shaped ring gear, wherein said planetary gear also meshes with a static centre spur gear (78);
• a rotatable circular casing (50) concentrically encompassing the rotor, wherein a combustion chamber is formed in the space between the casing and rotor; and
• circular covers (67,74) fixed to the sides of said casing respectively to form an air-tight closed structure.

2. The 360° combustion rotary engine as claimed in claim 1, wherein the rotation of the rotor is balanced by means of a ball-groove (65) mechanism, wherein steel balls fixed at the centre of each edge of the rotor is configured to roll through oval grooves (72) provided on the rotor covers, wherein said movement of the balls in said grooves causes the rotor to maintain its rotation along an oval shaped path.

3. The 360° combustion rotary engine as claimed in claim 1, wherein the relative angular velocity of the casing (50) and the rotor respectively is 3:1.

4. The 360° combustion rotary engine as claimed in claim 1, wherein the centre spur gear is mounted on a shaft (77), wherein one end of said shaft is disposed through a hole (85) provided on the side cover on the output side, wherein it is movably fixed on said covers by means of bearings.

5. The 360° combustion rotary engine as claimed in claim 1, wherein the planetary spur gear is configured to simultaneously mesh with the centre spur gear and the Zindler curve shaped ring gear of the rotor, wherein as the rotor turns, the planetary gear follows an eccentric path around the centre spur gear.

6. The 360° combustion rotary engine as claimed in claim 1, wherein the shaft of the planetary spur gear is attached to the rotor covers (67,74).

7. The 360° combustion rotary engine as claimed in claim 1, wherein the groove is distorted oval shaped.

8. The 360° combustion rotary engine as claimed in claim 2, wherein the ball-groove mechanism aids in causing the radial load to exert only on the faces of the equilateral triangular rotor.

9. The 360° combustion rotary engine as claimed in claim 1, wherein the rotatable circular casing features a spark plug (52), wherein said spark plug is powered by a magnetic coil encompassed in a rotatable outer casing fixed on the output shaft.

10. The 360° combustion rotary engine as claimed in claim 8, wherein the electric circuit powering the spark plugs is partially provided on the casing, wherein the continuity of said circuit is ensured by means of a carbon brush arrangement.

11. A method of operation of the 360° combustion rotary engine, said method characterized by:

• starting the motor using self-motor, wherein it causes the shaft to rotate resulting in the casing to rotate, therein inducing rotation on the planetary gear, which in turn turns the Zindler curve shaped ring gear and hence the rotor;
• causing the fuel to be sucked into the combustion chamber owing to said rotation of the rotor, wherein said suction stroke completes in 0°-360°of casing rotation;
• compression of the fuel during compression stroke, wherein said stroke completes in 0°-360°of the casing rotation;
• igniting of the fuel by the spark plug during the expansion stroke, wherein the said stroke completes in 0°-360°of the casing rotation; and
• performing the exhaust stroke subsequent to expansion stroke, wherein said exhaust stroke completes in 0°-360°of casing rotation.

12. The method as claimed in claim 11, wherein the operation efficiency achieved is up to 48%.

14/06/2022 Prasanth S
IN/PA 2954

Agent for the Applicant