The Excenterring-Maschine in principle has three movable parts, each showing different kind of motion. By a simple animation, here these diverse approaches of movements will be demonstrated.
Rotorarm
The central shaft will turn constant around the system axis. At the system axis, excentrically the rotor arm is installed fix, practically a cranck shaft. This unit (here blue) will turn constant, however this steady turning but will be achieved when several modules are installed. One radius, showing in direction of the excentrity of the rotor arm (blue line) here is marked.
Excenterarm
The excenter arm (green) is mounted turnable within the housing. Here that bearing is shown as a black outer circle. One radius of is marked (green line), which same time does mark the mass center of this constructional element. This excenterarm will turn un-steady: from right to below it will be accelerated, left will show its maximum speed, while above to right will be decelerated again.
Rotor
The rotor (red) is moved between these two guiding elements, with highly different turning. From right-inside towards down and left, it will be accelerated, further on will sling upwards outside, in order to show most outside right its highest speed. Afterwards, analogly it will move towards inside. So the mass point (red line) of the rotor, no longer will move at this appple-shaped track above.
Outward- resp. inward-turning spiral track
Cause of that including one bearing the other, instead of the inner dead-point of the apple-track, here a loop-track towards inside exists. At a whole, so the effective mass will move at a outward bended spiral track while it is slinged outside. Analogly the mass is decelerated at a inward-bended sprial track when moving towards inside.
Here, diverse positions of the rotor are marked (red lines, representing the effectiv rotor mass). This turning of the rotor by 360 degrees will be done, while the system shaft - thus also the rotorarm - will turn half around the system axis, continuously.
Acceleration and deceleration
Below, corresponding to that the positions of the excenter arm are marked (green lines). Acceleration and deceleration of that mass, thus at same phases will be done, however with different speeds.
The excenter arm thereby will show a relatively steady acceleration resp. deceleration. The mass of the excenter arm will move at concentric circle tracks (like mass of rotor arm).
Confusing motions
The eyes can´t follow these motions, even by slow-motion here. Thus here right side, again but three radius like above will mark the procedure of movements:
- the central (blue) ´clock-hand´ of the rotor arm does move steady around the clock,
- the mass point of the rotor (red) does ´turn a somersault´ (salto) around the rotor arm. From right-inside, clockwise, it will be accelerated in its outward-phase, thrown out progressively until right-outside. Afterwards, decelerated correspondingly, will turn back towards inside. The rotor, by that inner loop-track, now practically will show two turnings around the system axis, while the crank-shaft does but one full turn.
- the mass of excenter arm (green) does move right side quite slow, downside steadily accelerated until fast speed left side, analogly turning back to right side.
Swinging circles
Here left side, these three constructional elements are but shown by three excentric rings with their different motions (as I used but simple tools, that picture is a little bit nervous, sorry).
It´s relative easy to see that rhythic swinging of the rotor-ring around the excentric disk of the rotor-arm, and at the other hand, within the excentric space the excenter-ring will build.
As one looks at the rotor-ring, for example one may see that un-balancy down right side: into that direction, this system would produce thrust (analog to the discussions at chapter ´Propulsion-maschines´ above).
Here however one may see, same time the excenter-ring towards upside-left makes a motion also ´unbalanced´. Thus, this system at a whole may be balanced easily. When using diverse of these modules, a round and soft running motor can be constructed.
Results
These simple animations, much clearer do show the motions than static pictures can. But, by these impressions, some questions will result:
- at this system, which kind of effects inertia power will have (as insead of that apple-track now spiral-tracks are given, twice)? By the ´trembling´ of these pictures one already can see, the acceleration of the rotor not at all will be steadily from inside to outside (cause also right-side-inside speed will be accelerated some kind).
- that system, at some phases does show enormous accelerations. So it´s a questions the constructional elements may follow these motions, or, if there won´t be some self-locking situations. So, further constructional elements could bring additional degrees of free motion - like the crop circle picture seams to show more than but these three movable elements.
- which relation of excentrity versus lever arms will make sence? Instead of that rotors ´somersault´ (salto mortale), swinging back of effective masses wouldn´t make more sence, analog to swivel-arm-maschine?
So, after some weeks even more to that complex of questions here will be talked about.
Evert / 21.02.2000
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