SYSTEM AND METHOD OF A NUTATING DISC FOR ROTARY DRIVE

FIELD OF INVENTION

[1] The present disclosure relates generally to the field of mechanical motion transmission systems. More particularly, the present disclosure relates to a system and method of supporting a nutating disc for rotary drive.

BACKGROUND

[2] Typically, a nutating disc in a mechanical system is used for transmission and conversion of reciprocatory motion to rotary motion and vice versa. The nutating disc is usually supported by a ball joint to enable a wobbling motion of the nutating disc. However, mounting of the nutating disc over the ball joint causes rotation of the nutating disc thereby leading to unbalancing of the nutating disc, and also increases design constraints of the mechanical system. Further, the mechanical system is also expensive.

[3] Generally, a mechanical anti-rotational arrangement, for example an anti- rotation arm, a guide groove, or a key, is used to prevent the rotation of the nutating disc. However, the mechanical anti-rotational arrangement causes friction and makes the mechanical system bulky, thus affecting efficiency of the mechanical system. The mechanical anti-rotational arrangement also causes the mechanical system to become
unbalanced thereby increasing vibrations, reducing efficiency and limiting operation speed to lower values.

[4] Hence, there is a need for a system and a method to address the aforementioned issues.

SUMMARY

[5] Embodiments of the present disclosure described herein provide a system and method to support nutating disc for rotary drive.

[6] An example of a system for supporting a nutating disc for rotary drive includes a frame, a nutating disc arrangement, a link arrangement, and a rotary drive arrangement. The frame includes an outer support ring hinged to a stationary rigid frame on a radial axis. The nutating disc arrangement includes a nutating disc hinged to the outer support ring on an axis perpendicular to the radial axis to generate a wobbling motion. The nutating disc arrangement also includes a nutating drive pin mounted concentrical on a top center of the nutating disc to perform an orbiting motion based on the wobbling motion. The link arrangement includes a plurality of upper link blocks hinged to the nutating disc and passing through geometrical center of the nutating disc. The link arrangement also includes a plurality of upper link levers hinged to the plurality of upper link blocks at an axis passing through and perpendicular to axis of the plurality of upper link blocks. Further the link arrangement includes a plurality of lower link brackets mounted on a top of a piston assembly inclusive of a plurality of pistons, a plurality of lower link blocks hinged to the plurality of lower link brackets, and a plurality of lower link levers hinged to the plurality of lower link blocks at a bottom end of the plurality of lower link levers. The rotary drive arrangement includes a rotary drive element that accommodates the nutating drive pin to provide a rotary motion, wherein the rotary drive element is fixed on a rotary output shaft. The rotary drive arrangement further includes the rotary output shaft supported on bearings on the stationary rigid frame to receive the rotary motion generated into the rotary drive element.

[7] Another example of a system for supporting a nutating disc for rotary drive is provided. The system includes a support block mounted on top of a power cylinder block and a two-axis block hinged on the support block. The system also includes a nutating disc arrangement, a reciprocating drive arrangement, and a rotary driven element arrangement. The nutating disc arrangement includes a nutating disc, internally hollow, hinged to the two-axis block located internally in the nutating disc to generate a wobbling motion. The nutating disc arrangement also includes an inverted V-frame mounted on top of the nutating disc and a nutating drive pin mounted on a top center of the inverted V-frame to perform an orbiting motion based on the wobbling motion. The reciprocating drive arrangement includes a plurality of standard rod ends hinged between the nutating disc and top of a piston assembly inclusive of a plurality of pistons. The rotary driven element arrangement includes a rotary driven element coupled to a rotary output shaft to provide a rotary motion. The rotary driven element arrangement also includes the rotary output shaft to receive the rotary motion generated into the rotary driven element and a rotary drive bush mounted on the rotary output shaft. The rotary driven element arrangement further includes a plurality of side plates fixed on the rotary drive bush to form a turning axis and a bearing block fitted with a bearing and having an additional turning axis by hinged joints at diametrically opposite ends of the bearing block.

[8] An example of a method of supporting a nutating disc for rotary drive includes performing a reciprocatory motion by a plurality of pistons and transmitting the reciprocatory motion by the plurality of pistons to a plurality of link levers. The method also includes causing a wobbling motion of a nutating disc. The nutating disc is symmetrically coupled to the plurality of link levers. The method further includes performing an orbiting motion of a nutating drive pin based on the wobbling motion. The nutating drive pin is coupled to the nutating disc. Further, the method includes transmitting the orbiting motion to a rotary driven element. The nutating drive pin is inserted into the rotary driven element. Moreover, the method includes rotating a rotary output shaft based on a rotary motion. The rotary motion is generated into the rotary driven element.

BRIEF DESCRIPTION OF FIGURES

[9] In the accompanying figure, similar reference numerals may refer to identical or functionally similar elements. These reference numerals are used in the detailed description to illustrate various embodiments and to explain various aspects and advantages of the present disclosure.

[10] FIG. 1 illustrates a system of supporting a nutating disc for rotary drive using an outer support ring, in accordance with one embodiment;

[11] FIG. 2A illustrates a system of supporting a nutating disc for rotary drive using an internal two-axis block, in accordance with one embodiment;

[12] FIG. 2B illustrates a nutating disc arrangement for rotary drive, in accordance with one embodiment; and

[13] FIG. 3 illustrates a method for converting reciprocatory motion to rotary motion and vice versa, in accordance with one embodiment.

[14] Persons skilled in the art will appreciate that elements in the figures are illustrated for simplicity and clarity and may have not been drawn to scale. For example, the dimensions of some of the elements in the figure may be exaggerated relative to other elements to help to improve understanding of various embodiments of the present disclosure.

DETAILED DESCRIPTION

[15] It should be observed the method steps and system components have been represented by conventional symbols in the figure, showing only specific details which are relevant for an understanding of the present disclosure. Further, details may be readily apparent to person ordinarily skilled in the art may not have been disclosed. In the present disclosure, relational terms such as first and second, and the like, may be used to distinguish one entity from another entity, without necessarily implying any actual relationship or order between such entities.

[16] Embodiments of the present disclosure described herein provide a system and method of supporting a nutating disc for rotary drive.

[17] FIG. 1 illustrates a system 100 of supporting a nutating disc for rotary drive using an outer support ring. The system 100 includes a nutating disc arrangement, a link arrangement and a rotary drive arrangement.

[18] The nutating disc arrangement of the system 100 includes the nutating disc 125 hinged to the outer support ring 130 on a radial axis 155 by hinge pins, for example hinge pins 170, located on diametrically opposite ends of the outer support ring 130. The outer support ring 130 is hinged and supported by hinge bolts, for example hinge bolts 155, on the stationary rigid member like frame 160. The axis of these hinge bolts, for example the hinge bolts 155, is intersecting but perpendicular to the radial axis 155 formed by hinge pins, for example hinge pins 170, that are supporting the nutating disc 125 on the outer support ring 130. The nutating disc arrangement also includes a nutating drive pin 165. The nutating drive pin 165 is mounted concentric to the nutating disc 125. The axis of the nutating drive pin 165 passes through the geometric center of the nutating disc 125 and is perpendicular to an axis formed by the hinge pins 170. A bottom flange of the nutating drive pin 165 is mounted on a top centre of the nutating disc 125. The nutating disc arrangement ensures that the nutating disc 125 can generate wobbling motion within design limits, but cannot rotate around its axis. A top end of the nutating drive pin 165 generates orbiting motion due to the wobbling motion of the nutating disc 125.

[19] The link arrangement includes a plurality of upper link blocks, for example an upper link block 120, that are hinged to the nutating disc 125 at an axis radial to the nutating disc 125 and passing through the geometrical center of the nutating disc 125. The link arrangement further includes a plurality of link levers, for example a link lever 150, that are hinged to the respective upper link blocks, for example the upper link block 120, at an axis passing through but perpendicular to hinged axis of respective upper link blocks with the nutating disc 125. Each of the lower link levers 150 is hinged to a related lower link block, for example the lower link block 145 has a turning axis parallel to a turning axis of the link lever 150 with the upper link block 120. The lower link block has two mutually perpendicular hinge axes in plane passing through its geometrical center.

[20] The link arrangement further includes lower link brackets, for example lower link bracket 140. Each of the lower link brackets is hinged to the lower link block on an axis that is perpendicular to hinge axis of the link lever 150 and the lower link block 145.

The hinge axis of the lower link block 145 and the lower link bracket 140 is configured to remain horizontal. A plurality of lower link brackets, including the lower link bracket 140, are mounted on a plurality of reciprocating members, for example piston 135 located in respective cylinders. When the reciprocating members, for example the piston 135, reciprocate in phase, the link arrangement converts reciprocatory motion to a wobbling motion in the nutating disc 125 and an orbiting motion in the nutating drive pin 165.

[21] In some embodiments, the link arrangement formed by the upper link blocks 120, the link levers 150, the lower link block 145 and the lower link bracket 140 can be replaced by a plurality of standard rod ends.

[22] The rotary drive arrangement of the system 100 includes a rotary drive element 115 that has a hole or a slot machined to accommodate the nutating drive pin 165 at a distance and angle to match position of the nutating drive pin 165 at a maximum designed tilt of the nutating disc 125. The top end of the nutating drive pin 165 is inserted in the hole or the slot of the rotary drive element 115, such that when the nutating drive pin 165 orbits due to wobble of nutating disc 125, the orbiting motion is transferred to the rotary drive element 115 and the rotary drive element 115 rotates. The rotary drive arrangement further includes a rotary output shaft 105 on which the rotary drive element 115 is rigidly fixed. The rotary output shaft 105 is mounted in bearings located in a stationary bearing housing 175. A turning axis of the rotary output shaft 105 passes through center of the the nutating disc 125. The rotary output shaft 105 can be further connected to and used to drive an external device, for example a flywheel 110.

[23] The reciprocatory motion can be generated by the pistons 135 moving up and down in phase in a power cylinder block of the system 100. The system 100 can convert the reciprocatory motion generated by the pistons 135 moving up and down in phase to the wobbling motion of the nutating disc 125, to the orbiting motion of the nutating drive pin 165, and to rotary motion of the rotary output shaft 105.

[24] The rotary motion from the output shaft 105 can also be converted into the reciprocatory motion in the pistons 135 that further reciprocate with required phase difference.

[25] In some embodiments, the system 100 includes the rotary output shaft 105 configured to receive the rotary motion as input. The nutating drive pin 165 receives the orbiting motion from the rotary driven element 115. The nutating drive pin 165 causes the nutating disc 125 to wobble. The link levers 150 reciprocate due to the wobbling motion of the nutating disc 125. The reciprocatory motion of the link levers is then transmitted to a piston assembly including the pistons 135.

[26] FIG. 2A illustrates a system 200 of supporting a nutating disc for rotary drive using an internal two-axis block. The system 200 includes a nutating disc arrangement, a reciprocating drive arrangement and a rotary driven element arrangement.

[27] The nutating disc arrangement in the system 200 includes a nutating disc 215 that is hollow internally, and is hinged on its diametrical axis to a two-axis block 210 that is located internally in the nutating disc 215. The nutating disc arrangement used in the system 200 is illustrated in detail in FIG. 2B. The nutating disc 215 is hinged on its diametrical axis to an inner support ring 260. The inner support ring 260 is in turn hinged to a stationary support block 265 on its diametrical axis intersecting but perpendicular to hinged axis of the nutating disc 215 with the inner support ring 260. The nutating disc arrangement allows the nutating disc 215 to wobble freely within designed limits around its geometrical center without rotating.

[28] The two-axis block 210 has two intersecting but mutually perpendicular turning axes located in a plane passing through center of the two-axis block 210. The two-axis block 210 is functionally equivalent to the inner support ring 260. The two-axis block 210 is further hinged on an axis intersecting but perpendicular to an axis of support for the nutating disc 215 to a support block 225. The support block 225 can be mounted on any stationary and rigid member, such as a cylinder block as shown in FIG. 2. The support block 225 is functionally equivalent to the support block 265. The two- axis block 210 enables wobbling motion of the nutating disc 215. The nutating disc arrangement also includes an inverted V-frame 240 mounted on top of the nutating disc 215. A nutating drive pin 205 has a bottom end mounted on a top centre of the inverted V-frame 240 in such a way that the nutating drive pin 205 is co-axial to the nutating disc 215. The inverted V-frame 240 can be of other shape to suit specific design requirements. When the nutating disc 215 wobbles around its geometric center, the top end of the nutating drive pin 205 generates orbiting motion in a conical envelope with the apex of the cone located at the geometrical center of the nutating disc 215. The length of the inverted V-frame 240 determines a distance of the nutating drive pin 205 from the nutating disc 215 and therefore, orbiting radius of the nutating drive pin 205.

[29] The reciprocating drive arrangement of the system 200 includes a plurality of standard rod ends, for example a standard rod end 220, that are hinged on the nutating disc 215 with turning axis radial and passing through center of the nutating disc 215. The other ends of the standard rod ends, for example rod end 210, are hinged inside a plurality of reciprocating members, for example a piston 235, with hinged axis perpendicular to hinged axis of respective top of the standard rod end with the nutating disc 215. A plurality of link levers described above in the link arrangement of FIG. 1 can also be used in place of the standard rod ends. The standard rod ends or a link lever arrangement transfers the reciprocating motion of reciprocating members, for example a piston 235, to the nutating disc 215 causing the nutating disc 215 to wobble around its center. Alternatively the wobble of the nutating disc 215 can result in the reciprocating motion of the reciprocating members, for example the piston 235, resulting in reciprocation of connected reciprocating members in specific phase.

[30] The rotary drive element includes a rotary drive bush 250 mounted rigidly on a rotary output shaft 245. Two side plates 255 are fixed on the rotary drive bush 250. Both the side plates 255 have a hole, with or without a bush or ball bearing, thereby forming a turning axis. The location of the turning axis matches with geometry of the nutating disc arrangement. The rotary drive element further consists of a bearing block 230 fitted with a bearing and having an additional turning axis by hinged joints at diametrically opposite ends of the bearing block 230. The axis of the hinged joints intersects the axis of the bearing at a right angle. The nutating drive pin 205 gets inserted in the bearing fitted in the bearing block 230. The rotary drive element arrangement allows the bearing block 230 to get adjusted automatically to suit the angle of conical envelope formed by the nutating drive pin 205 and allows adjustment for varying geometry of the system 200. By avoiding sliding motion of the nutating drive pin 205, frictional losses are reduced thereby improving efficiency of the system 200.

[31] In some embodiments, there is a need to change a wobbling motion of the nutating disc 215 thereby limiting the stroke of pistons 235. A second set of plates is then fixed with adjustment slots on first set of the two side plates 255. The bearing block 230 is hence adjusted to limit maximum tilt of the nutating disc 215 and adjust the system 200 for desired length of stroke of the reciprocating members, for example the piston 235.

[32] In some embodiments, the rotary driven element arrangement of the system 200 can function similar to the rotary drive arrangement of the system 100.

[33] The reciprocatory motion can be generated by the plurality of pistons moving up and down in a power cylinder block of the system 200. The system 200 can convert the reciprocatory motion generated by the pistons 235, reciprocating in phase, to the wobbling motion of the nutating disc 215, orbiting motion of the nutating drive pin 205 and rotary motion of the rotary output shaft 245.

[34] The rotary motion from the rotary output shaft 245 can also be converted into the reciprocatory motion in the pistons in proper phase.

[35] In some embodiments, the system 200, includes the rotary output shaft 245 configured to receive the rotary motion as input. The rotary output shaft 245 of the system 200, can receive the rotary motion input from external power or from stored energy of devices, for example a flywheel. The nutating drive pin 205 receives the orbiting motion from the rotary driven element arrangement. The nutating drive pin 205 causes the nutating disc 215 to wobble. The standard rod ends, for example the standard rod end 220, reciprocate due to the wobbling motion of the nutating disc 215. The reciprocatory motion of the standard rod ends is transmitted to a piston assembly including the pistons 235.

[36] A reverse operation of the system 200 as specified above is applied when the system 200 is used for a multi-cylinder engine to convert reciprocating motion of the pistons 235 to the rotary motion. In such engines, each of the pistons 235 produce power during a power stroke that is part of a full stroke, whereas for remaining part of the full stroke, the pistons 235 receive power for the reciprocating motion by external power or from the rotary motion powered by stored energy of a member, for example a
Fly wheel connected to the output shaft. The system 200 can hence transfer the power from the pistons 235 during the power stroke to rotary output. Thus the system 200 can ensure that during operation of the multi-cylinder engine, transfer of motion from reciprocatory motion to rotary motion and vice versa is in progress simultaneously and continuously.

[37] FIG. 3 illustrates a method of supporting a nutating disc for rotary drive.

[38] At step 305, a piston assembly, inclusive of a plurality of pistons, in a multi- cylinder engine performs a reciprocatory motion in phase. The reciprocatory motion is defined when the pistons perform a continuous up and down motion at a specific phase difference to each other. The pistons reciprocate with the specific phase difference, for example, at a given instant when one piston is at top dead centre (TDC) of associated stroke length, a diametrically opposite end piston is at bottom dead centre (BDC), and the pistons placed adjacently are in middle of respective stroke lengths, one approaching the TDC while the other approaching the BDC. The number of pistons can vary depending upon the phase difference as per the specific design requirements.

[39] At step 310, the reciprocatory motion of the pistons is further transmitted to a plurality of link levers or standard rod ends. The link levers or standard rod ends are connected to the piston assembly through a lower link block. The link levers or standard rod ends then transmit the reciprocatory motion to a nutating disc. The link levers or standard rod ends are symmetrically coupled to the nutating disc. The number of rod ends or link lever assemblies depends upon number of reciprocating pistons.

[40] At step 315, a nutating disc mounted on an external support ring receives the reciprocatory motion from the standard rod ends or link lever assemblies and results in continuous tilting of the nutating disc resulting in the wobbling motion of the nutating disc about its geometrical centre. Based on the reciprocatory motion, the nutating disc can tilt in a plane that passes through a geometrical centre, but cannot rotate. The specific phase difference of the pistons ensures that the nutating disc tilts in one direction at a given instant of time, and that the tilting of the nutating disc is performed in different directions in a cyclic manner. The length of the link levers or the standard rod ends is such that if the pistons in step 305 are at mid position, the nutating disc is horizontal. This ensures that when opposite pistons in step 305 are at BDC and TDC, the tilt of the nutating disc is maximum and symmetrical below and above the horizontal plane. Such an arrangement ensures that weight of the rod ends or link levers and connected pistons is uniformly distributed on the nutating disc and, hence the nutating disc is statically balanced.

[41] At step 320, as an alternative to step 315, a nutating disc mounted on an internal support ring receives the reciprocating motion from the standard rod ends or link lever assemblies and results in continuous tilting of the nutating disc resulting in the wobbling motion of the nutating disc around its geometrical centre. The nutating disc can tilt in a plane that passes through a geometrical centre, but cannot rotate. The angle of tilt of the nutating disc depends upon the extent of stroke and phase difference of the reciprocating motion of pistons in step 305. Operational features of the nutating disc in step 320 are identical to the features described above for step 315.

[42] At step 325, the wobbling motion of the nutating disc generated in step 315 or step 320 is transferred to a nutating drive pin mounted on the nutating disc. The top end of the nutating drive pin, having a bottom end fixed at top centre of the nutating disc, performs an orbiting motion about a vertical axis based on the wobbling motion of the nutating disc. The motion of top end of the nutating drive pin leads to formation of a conical envelope with the tip of the conical envelope located at the geometrical center of the nutating disc, pointing downwards.

[43] At step 330, the orbiting motion is transmitted to a rotary driven element.

[44] At step 332, the top end of the nutating drive pin drives a disc type rotary driven element and the orbiting motion of the nutating drive pin generated in step 325 is transformed into the rotary motion of the rotary drive element.

[45] At step 335, as an alternative to step 332, the orbiting motion of the nutating drive pin is transferred to a rotary driven element that can get adjusted for the angle of tilt of the nutating drive pin and, if required, having provision to limit the stroke of the nutating drive pin. As in step 332, the rotary driven element of step 335 transforms the orbiting motion of the nutating drive pin into the rotary motion of the rotary drive element.

[46] At step 340, the rotary motion generated either by the disc type rotary element in step 332 or by the adjustable rotary element in step 335, is transferred to a rotary output shaft and the rotary output shaft rotates about its axis. The rotary motion of the rotary output shaft can be used in fields wherever the rotary motion is needed as input or to drive suitable external devices.

[47] As shown by reversing arrows in FIG. 3, the method can also be reversed to reverse a direction of transmission of motion. The rotary motion can be fed as input to the rotary output shaft, and the rotary motion can be transmitted through the rotary driven element to the nutating drive pin, to enable wobbling of nutating disc. The link levers hence reciprocate and transmit the reciprocatory motion to the pistons. The reciprocatory motion can then be used to operate one or more mechanical devices, for example pumps, compressors, tablets, presses, capping machines etc.

[48] The present disclosure enables unrestricted wobbling motion of a nutating disc around a geometric center of the nutating disc and prevents rotation of the nutating disc without using any additional members, bearings, components or systems. The present disclosure can therefore be used efficiently either to convert a reciprocatory motion to a rotary motion or vice versa with minimal friction. The nutating disc arrangement is suitable for use when the space is of concern and when an external rigid member, for example a frame, is unavailable. The bearing block is automatically adjusted to suit a conical envelope formed by the nutating drive pin. A sliding motion of the nutating drive pin is thereby avoided and frictional losses are reduced, hence improving efficiency of the system. Further, ability of the bearing block to control maximum tilt of the nutating disc and automatically adjusting the system to suit length of stroke of the pistons allows wider adaptability to suit different mechanical systems.

[49] In the preceding specification, the present disclosure and its advantages have been described with reference to specific embodiments. However, it will be apparent to a person of ordinary skill in the art that various modifications and changes can be made, without departing from the scope of the present disclosure, as set forth in the claims below. Accordingly, the specification and figures are to be regarded as illustrative examples of the present disclosure, rather than in restrictive sense. All such possible modifications are intended to be included within the scope of the present disclosure.

I/We claim:

1. A system for supporting a nutating disc for rotary drive, the system comprising: a frame, wherein the frame comprises:

an outer support ring hinged to a stationary rigid frame on a radial axis; a nutating disc arrangement, wherein the nutating disc arrangement comprises;

a nutating disc hinged to the outer support ring on an axis perpendicular to the radial axis to generate a wobbling motion;

a nutating drive pin mounted concentrical on a top center of the nutating disc to perform an orbiting motion based on the wobbling motion;

a link arrangement, wherein the link arrangement comprises:

a plurality of upper link blocks hinged to the nutating disc and passing through geometrical center of the nutating disc;

a plurality of upper link levers hinged to the plurality of upper link blocks at an axis passing through and perpendicular to axis of the plurality of upper link blocks;

a plurality of lower link brackets mounted on a top of a piston assembly inclusive of a plurality of pistons;

a plurality of lower link blocks hinged to the plurality of lower link brackets;

a plurality of lower link levers hinged to the plurality of lower link blocks at a bottom end of the plurality of lower link levers; and

a plurality of link levers hinged to a plurality of upper link blocks at a top end of the plurality of link levers; and a rotary drive arrangement, wherein the rotary drive arrangement comprises:

a rotary drive element that accommodates the nutating drive pin to provide a rotary motion, wherein the rotary drive element is fixed on a rotary output shaft; and

the rotary output shaft supported on bearings on the stationary rigid frame to receive the rotary motion generated into the rotary drive element.

2. The system as claimed in claim 1 and further comprising

a plurality of pistons configured to generate a reciprocatory motion.

3. The system as claimed in claim 2, wherein the system is configured to reverse a direction of transmission of motion.

4. The system as claimed in claim 3, wherein the plurality of upper link levers and the plurality of lower link levers are configured to generate a reciprocatory motion.

5. The system as claimed in claim 4, wherein the plurality of pistons is configured to receive the reciprocatory motion.

6. The system as claimed in claim 1, wherein the nutating disc is hinged to the outer support ring by one or more hinge pins.

7. The system as claimed in claim 6, wherein the outer support ring is hinged to the stationary rigid frame by one or more hinge bolts.

8. The system as claimed in claim 7, wherein the link arrangement is replaced by a plurality of standard rod ends.

9. A system for supporting a nutating disc for rotary drive, the system comprising:

a support block mounted on top of a power cylinder block;

a two-axis block hinged on the support block;

a nutating disc arrangement, wherein the nutating disc arrangement comprises:

a nutating disc, internally hollow, hinged to the two-axis block located internally in the nutating disc to generate a wobbling motion;

an inverted V-frame mounted on top of the nutating disc;

a nutating drive pin mounted on a top center of the inverted V-frame to perform an orbiting motion based on the wobbling motion;

a reciprocating drive arrangement, wherein the reciprocating drive arrangement comprises:

a plurality of standard rod ends hinged between the nutating disc and top of a piston assembly inclusive of a plurality of pistons; and

a rotary driven element arrangement, the rotary driven element arrangement comprises:

a rotary driven element coupled to a rotary output shaft to provide a rotary motion;

the rotary output shaft to receive the rotary motion generated into the rotary driven element;

a rotary drive bush mounted on the rotary output shaft;

a plurality of side plates fixed on the rotary drive bush to form a turning axis; and

a bearing block fitted with a bearing and having an additional turning axis by hinged joints at diametrically opposite ends of the bearing block.

10. The system as claimed in claim 9 and further comprising

a plurality of pistons configured to generate a reciprocatory motion.

11. The system as claimed in claim 10, wherein the system is configured to reverse a direction of transmission of motion.

12. The system as claimed in claim 11, wherein the plurality of link levers is configured to generate a reciprocatory motion.

13. The system as claimed in claim 12, wherein the plurality of pistons is configured to receive the reciprocatory motion.

14. The system as claimed in claim 9, wherein the nutating disc is hinged on a diametrical axis to an inner support ring.

15. The system as claimed in claim 9, wherein the two axis block is replaced by an inner support ring.

16. The system as claimed in claim 9, wherein the plurality of standard rod ends is replaced by a link arrangement.

17. The system as claimed in claim 9, wherein the nutating drive pin is inserted in the bearing fitted in the bearing block.

18. The system as claimed in claim 9, wherein the rotary output shaft is located internal to a bearing housing.

19. A method of supporting a nutating disc for rotary drive, the method comprising:

performing a reciprocatory motion by a plurality of pistons;

transmitting the reciprocatory motion by the plurality of pistons to one of a plurality of link levers and standard rod ends;

causing a wobbling motion of a nutating disc, wherein the nutating disc is symmetrically coupled to one of the plurality of link levers and the standard rod ends;

performing an orbiting motion of a nutating drive pin based on the wobbling motion, wherein the nutating drive pin is coupled to the nutating disc;

transmitting the orbiting motion to a rotary driven element, wherein the nutating drive pin is inserted into the rotary driven element; and

rotating a rotary output shaft based on a rotary motion, wherein the rotary motion is generated into the rotary driven element.

20. The method as claimed in claim 19, wherein the method is reversed to reverse a direction of transmission of motion.

21. The method as claimed in claim 20 and further comprising:

providing the rotary motion as input to the rotary output shaft;

transmitting the rotary motion through the rotary driven element to the nutating drive pin;

generating the wobbling motion of the nutating disc, wherein the nutating disc is coupled to the nutating drive pin;

converting the wobbling motion to the reciprocatory motion in one of the plurality of link levers and standard rod ends; and

transmitting the reciprocatory motion to the plurality of pistons to operate one or more mechanical devices.