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Miniature wankel-powered seatbelt pretensioners

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Old 03-20-2009, 02:11 PM
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Miniature wankel-powered seatbelt pretensioners
(Maybe not news to those that have browsed through wiki):

Apparently some auto manufacturers use tiny gas-powered wankel engines to tighten seatbelts before a crash. How cute.

http://www.google.com/patents?vid=US...BAJ&dq=5485970
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Old 03-20-2009, 02:12 PM
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heh thats cool
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Old 03-20-2009, 02:58 PM
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haha, that's really cool!

mazda should stick in em in our cars.
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Old 03-20-2009, 03:16 PM
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Im pretty sure this was posted a couple years ago, but i am too lazy to care to find thread....good find
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Old 03-20-2009, 03:43 PM
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News to me. I gave my roommate a laugh.
I wonder what auto makers use it!
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Old 03-21-2009, 12:15 PM
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According to Wikipedia, Mercedes and VW do.

http://en.wikipedia.org/wiki/Wankel_engine
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