I've been asked to create a system that will output a constant flow of liquid (water) even when the input pressure is variable.
I can't use gravity filtration because the system is for a straw filter (diameter of 1-2cm). It's a system that should take in the water when sucked by a person, send it through a filter with a constant flow rate and be available for drinking. The final straw would look something like this
So far I haven't been able to think of any design that's possible for a straw. I'm starting to wonder if it even is possible considering the dimensions involved.