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View Full Version : Link about hydraulic hybrid technology


Shrek
07-10-2008, 02:09 AM
From the comments to the article about transmissions I found this link about
using a high pressure container (air?) to store braking energy.

They basically take a scuba-divers air tank and store air (i guess) from a compressor.
The main obstacle is to create efficient engines to run on this air.


http://www.designnews.com/article/CA6549294.html?nid=3077&rid=1656816558


EDIT: By the way, compressing air should be more energy-efficient than creating electricity. I seem to remember that the
Prius regen-braking is only 50% efficient?

highwater
07-10-2008, 02:58 AM
Actually have a hard copy of this in front of me. I read that they are talking about a liquid fluid hydraullic system and not an air system.

I found a few references to vehicle operations that AAA doesn't seem to understand.

Throw in the potential of full-series hybrids to capture braking losses and allow significant periods of engine-off operation and they become even more attractive from both economy and emissions standpoints.

That efficiency is only about 4 percent better than a conventional mechanical drive train. Yet, thanks to the hybrid’s engine optimization and engine-off operations, total fuel conversion efficiency jumped from 18 percent with the traditional vehicle to 38 percent with the hydraulic hybrid.

Kargul says the gains came from three sources — running the engine at its sweet spot on the engine map, operating the vehicle with the engine off and capturing braking energy.

Nah....this will never(can't)(won't) work. Just AAAsk the AAA experts.



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