Not every “problem” seems like it needs a solution. In fact, not every “problem” might seem to be an actual problem. Patents are a great example of that. Mazda
I know, it doesn’t even seem like an issue in its title.
In Mazda’s summary, they highlight that a spinning drive shaft may spray water onto the FEAD (front end auxiliary drive) belt which drives the alternator from the crank pulley.
This may cause the belt or, in my favourite legalese, “endless transmitting member” to slip, which is something no-one wants. But covers or guards compromise package and service access.
Instead, Mazda has patented the routing and use of a coolant hose, running on the drive
Simple, efficient and officially patented. Good work, Mazda!