Another oil question

[George_San_Jose1]

@keith

Can you explain this “rubber timing belt in oil”?

The topic of this recent thread.

Timing Belt in Oil?

Do any USA cars use a timing belt in oil design? Similar configuration to to how a timing chain is inside an oil containing cover, but using a timing belt rather than a chain? I saw reference to that configuration for a Euro 2007 Ford Focus diesel engine, so was just curious if that’s used in the USA too? Or maybe I’m not understand the terminology?