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Re: allnumbers post# 11729

Sunday, 06/03/2007 9:47:22 PM

Sunday, June 03, 2007 9:47:22 PM

Post# of 35337
One of UT's discoveries:

"The main problem with the hydraulic hybrid subsystem is high level of noise and vibration. In real working condition, the peak pressure in the high-pressure accumulator can reach 5000 psi. The vibration is mainly caused by the sliding motion of the moving parts inside the pump/motor unit. Rotation of that pump/motor components also contribute to the unbalanced torque about the rotating axis. Therefore, it is important to effectively isolate the pump/motor unit from the chassis in order to reduce the transmitted noise and vibration. Passive isolation systems are not effective over a wide operation frequency range and therefore alternative solutions are needed for this application."

http://smartsys.eng.utoledo.edu/Hydraulic%20Hybrid%20Vehicles.html

Well, this explains why they are back at Torvec's door.
I don't remember any of these problems being characteristics of Torvec’s Pumps and Motors.

I think I remember Newspeed mentioning this problem that they were having.

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