4 ms·
Why not? Just add a valve that allows air out if the interior pressure rises more than x% above ambient atmospheric pressure, and allows air in through a filte
by logfromblammo 7y ago
Why not?
Just add a valve that allows air out if the interior pressure rises more than x% above ambient atmospheric pressure, and allows air in through a filter if it's more than y% below. It wouldn't be that much more complex than the stem valves already added to tires.
The primary goal is to keep contaminants out of the interior tire structure, but a secondary marketing goal should probably be to make them look like normal tires at first glance. Wrapping the internal structure in something that looks like "normal tire" serves both.
- Doxin 7y agoOnce you add in valves to let air in and out you run into the exact same fouling problems. Snow, small pebbles, road grit, any one of a number of things is at some point going to get sucked into that cavity. Normal stem valves avoid the problem by having a screw-on cap, which'd hardly work for a valve that needs to be passing air all the time.