Help Needed: Air car "fuel" recovery

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Chris Leonard Friend of CR4 Join Date: Dec 2004 Posts: 1776 Good Answers: 35	Help Needed: Air car "fuel" recovery 09/21/2005 10:50 AM
	CR4 Admin writes: Dave has asked a question in his Journal: "Would it be practical to add a flywheel and compressor to "refuel" the air car during braking?" Help out if you can... __________________ Off to take on other challenges. Good luck everybody! See you around the Interwebs.
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BRodda The Feature Creep Join Date: Feb 2005 Location: Boston, MA Posts: 990	#1 Refueling 09/21/2005 11:28 AM
	Wow, that is an interesting concept. It would work and the machinery for it wouldn't be to complex. Sounds like a good idea to me. __________________ "The future is here. It's just not widely distributed yet." -William Gibson
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shooter Power-User Join Date: May 2005 Posts: 161 Good Answers: 2	#2 In reply to #1 Re:Refueling 09/21/2005 2:49 PM
	It is interesting, and may be possible as long as it doesn't violate those pesky laws of thermodynamics.
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Dave Participant Join Date: Sep 2005 Posts: 4	#3 In reply to #2 Re:Refueling 09/22/2005 12:54 AM
	Agree. It would be interesting to see if it could get a positive return given weight, friction loss etc.... __________________ The more we control the more we have to control which leads to chaos.
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RobertOz Power-User Join Date: Jul 2006 Posts: 267 Good Answers: 22	#4 In reply to #3 Re:Refueling 07/31/2006 9:06 AM
	This has been done in different forms - weight of the flywheel often undoes a lot of the benefit...however it works reasonably successfully as a hydraulic system (even as a retrofit - an Australian company www.permo-drive.com got a contract to fit their gadget US military trucks a few years back). Their system connects straight onto the drive shaft - massive compression of oil under braking or downhill, then released for acceleration.
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BRodda (1); Dave (1); RobertOz (1); shooter (1)

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