- #1
LtIvan
- 40
- 6
Allo, this is my first post here.
I must say this forum has everything not just Physics but Mathematics and Engineering, all my favorite things.
Introduction:
I would like to start with an introduction of a 'rotary engine' for those who don't know.
Unlike the common boxer piston engine with vertical motion going to rotating by the use of a crank and reciprocal other pistons doing the same, the rotary or Wankel, (named by the first to innovate it), it works of a curved faced triangle rotating in an oval shape housing. Each segment of what the triangle leaves is for the three stage cycle; inlet, ignition and exhaust. Here is a link with a gif, (at 'Design').
https://en.wikipedia.org/wiki/Wankel_engine
Summary:
Now when looking at the design of the rotary engine, you notice the triangular rotor moves on an eccentric shaft, (or sometimes known as E-shaft), and most significantly it is curved of each of the faces. It moves in a similar crank motion as the piston engine does but also rotates at the same time. The oval shape housing it self is not in fact an oval but an epitrchoid.
This strange design of the rotary engine is very much important for the engine to work as for the special movement for the rotor and the correct housing for it to fit.
Now this is my question. How would you design such a shape as in both the epitrchoid chamber and the Reuleaux triangle, because it seems to me they are very complicated and need some special attention to design them.
I am a graphics student so I might want to draw it on a graphics board with a T-square.
Conclusion:
So if anyone who knows how to draw these complicated shapes and tell me how is fine.
Cyallo
I must say this forum has everything not just Physics but Mathematics and Engineering, all my favorite things.
Introduction:
I would like to start with an introduction of a 'rotary engine' for those who don't know.
Unlike the common boxer piston engine with vertical motion going to rotating by the use of a crank and reciprocal other pistons doing the same, the rotary or Wankel, (named by the first to innovate it), it works of a curved faced triangle rotating in an oval shape housing. Each segment of what the triangle leaves is for the three stage cycle; inlet, ignition and exhaust. Here is a link with a gif, (at 'Design').
https://en.wikipedia.org/wiki/Wankel_engine
Summary:
Now when looking at the design of the rotary engine, you notice the triangular rotor moves on an eccentric shaft, (or sometimes known as E-shaft), and most significantly it is curved of each of the faces. It moves in a similar crank motion as the piston engine does but also rotates at the same time. The oval shape housing it self is not in fact an oval but an epitrchoid.
This strange design of the rotary engine is very much important for the engine to work as for the special movement for the rotor and the correct housing for it to fit.
Now this is my question. How would you design such a shape as in both the epitrchoid chamber and the Reuleaux triangle, because it seems to me they are very complicated and need some special attention to design them.
I am a graphics student so I might want to draw it on a graphics board with a T-square.
Conclusion:
So if anyone who knows how to draw these complicated shapes and tell me how is fine.
Cyallo