At 600 rpm engine speed our old model gave 0-150 psi >2.5 gpm 700 psi, 2.5 gpm 1400 psi 0 gpm at 1500 rpm it gave about 1.5 gpm at 0-150 psi There is an...
I'm not sure how Greg's experience fits with the Nichols motor. Nichols motor seems quite promising; Greg's news is much more disappointing. Can anyone...
I wouldn't use a PAS pump for a power circuit - the efficiency is probably only 60% or so (that is a guess - nothing on a production car (except a turbo) seems...
The problem with a mechanical regenerative breaking system is that it would require some form of centrifugal clutch, and the danger of mechanical failure and...
Not as I see it... because you would still have a manual clutch... so I envision braking with the regenerative braking down to almost a stop then you manually...
Timothy -- Well, I'm thinking a CVT is essentially an automatic. I myself hate automatics, because they tend to be not as efficient as manuals and they give...
Ed Danzer and jrjamiejr -- You've both done quite a bit of research on hydraulic motors and pumps, both for regenerative braking and for power/torque assist...
Hydraulic horsepower is flow and pressure dependent. I'm finishing up design specifications for a hydraulic wheel drive for Class 2B trucks (the F350 Ford is...
Thanks, Ed. Am I correct in thinking that what you are discussing is largely what could be called a hydraulic transmission? I ask because I haven't seen...
And a heavier flywheel will store power for a longer time but takes longer to reach speed. Am I correct? So the heavier flywheel would cause greater torque...
Hydraulic accumulators can store and release energy much faster than batteries. It is possible to store large amounts of energy with accumulators, but there is...
What about the gyroscopic effect of the flywheel? A V8 rotating mass can already have some effect on the vehicle suspension (making it lean on one side), so...
What about compressed air technology: BBC article from Sept 2002. http://news.bbc.co.uk/1/hi/world/europe/2281011.stm Unofficial information page on...
The problem is that steering loads are also surprisingly small - I think this is a valid concern. Of course, there is an obvious solution, so it isn't a show...
In the past I've been pretty negative about the old aircar, but, it looks as though it might come to something. I have reservations about many aspects of the...
What about a hybrid configuration where exhaust heat from the IC engine keeps the air engine warm during acceleration? That would actually reclaim some of the...
So you are implementing the flywheel in the horizontal plane? I have always wondered what plane - H or V - would be the most adequate. If implemented...
Andre, your discussion basically outlines the primary function of an intercooler, cooling the air after its been compressed by a turbo or super charger, but...
The function of an intercooler is based upon the idea of molecule density, your turbo or super charger compresses air gathered from the atmosphere, gathering a...
man oh, man, some people were bored last night! why is high rpm a problem, Ed, other than burst speed? why not just gear them (flywheels) down? I used to...
Yoof. must change topics at top to better reflect where the discussion is, yes? My proposed solution has always been this: 1. Find the "center of rotation"...
Check me on this, but I think: A heavier flywheel will store more energy for the same diameter and rotational speed as a lighter flywheel. BUT: Spin a lighter...
Hydraulics/ air : Aren't hydraulics, when used as energy storage rather than a transmission, essentially compressed air anyway? Oil is fairly incompressible,...
It is a common fact that if you put a heavy flywheel in your car, your car will have more torque, but will take longer to rev up. Most people like light...
... Yes, I wondered about that as well. One problem is that if the exhaust is warm then that is wasted energy. For practical reasons we don't fully expand and...
... (seen from above, one turns clockwise, the other counter-clockwise). This cancels out the gyroscopic forces, I think. That's right. Then the orientation of...
No, no, that's not it. Sorry to be a little confusing in my explanations. Imagine a Civic Hybrid, with its regenerative braking, and electric power assist...
Check this: http://www.engineer.ucla.edu/stories/2003/hybrid.htm Compared to my previous post, they actually use a modified IC engine to also perform as an air...
