This is a post by Cat McClintock on PTC site.
If you’ve ever had to add hose or tube assemblies to your design, you know they can demand careful engineering. As you choose your materials and wall thicknesses, you have to think about the pressure, temperature, and elements your part is likely to encounter.(That said, if you’ve never worked much with hoses, you’ll find some beginning design tips at the end of this post.)
Hoses and Tubes: Changing the World
Like so much else in engineering, hose and tube construction is critical where it’s used, yet rarely draws much attention from the non-engineering world. That’s too bad. Check out these four innovations that have changed, or are about to change, the world: