Hybrid Car – More Fun with Less Gas

Hummers have the potential to make big gains in MPG - Page 2

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Posted by David Kelly on August 13, 2008, 1:09 am
aol@aol.com wrote:

Oooh! 10% improvement! Whoopie! Lets throw *lots* of government funding
at that project!

I like this one better: http://www.theonion.com/content/node/83979 ,
submitted it to toyota-prius@yahoogroups.com but was rejected by the
list censors. No sense of humor.

Posted by NorthTxPriusClub on August 14, 2008, 11:30 am

i think you totally missed the point it is a simple (and likely
relatively inexpensive) device that can pull a 10% improvement from
thin air. It looks like it may even be possible to do a retrofit on
existing vehicles.

If this thing works and can be fitted to most the vehicles in America
it alone would provide the equivalent of ANWR and the continental
shelves could in ten years.

I can't believe I am hearing that sort of dismissive comment coming
from a Prius board.

It's time EVERYONE realized there will be no gun with a single silver
bullet to solve our energy problem but if we are lucky there may be a
silver shotgun. This idea is but one pellet from that shotgun.

Posted by Bob & Holly Wilson on August 14, 2008, 11:41 am

Well let that be a lesson learned. If you really want to sell Hummer
improvements, find a forum full of Hummer owners.

I know! I know where!! Find a used car lot. They have a lot of Hummers
there. No doubt they would love to see you and your gadget. Heck, you
might even help them sell some.

Bob Wilson

Posted by David Kelly on August 15, 2008, 2:55 am
 NorthTxPriusClub wrote:

A 10% improvement is trivial, there are many inexpensive proven ways to
get a measly 10%. Narrower tires. Higher tire pressure (the Obama
solution). Smaller engine. Drafting the vehicle in front of you.

One of the most effective and inexpensive means is the Chicken Egg and
Duct Tape solution. Duct tape a chicken egg to the gas pedal and don't
break it while driving.

However the referenced device only achieves 5% on a Suburban, with a
*goal* of 10%. I was being generous by giving credit for the full 10%.

Something they seem to be forgetting is that when one cools the exhaust
pipe the engine efficiency goes down. Hot tip among racers is to wrap
exhausts to keep them hot.

I think a thermoelectric generator would be more practical on the radiator.

Years ago I worked on a prototype being proposed to the National Guard
for their many lightly used Diesel trucks, many dating back to WW-II
surplus. The proposal used a thermoelectric generator and burner cooled
by the vehicle engine's cooling system. The electricity was to charge
the 48V battery every month or so. The heat would serve as a block
warmer for starting the engine in cold temperatures.

I was only an engineer on the project so I don't really know why it was
rejected other than the impression I got was much the same as what
happened when the automatic dishwasher was introduced. Housewives
actually *liked* the ritual of washing dishes after a meal. They liked
directing and participating in a coordinated family task. It seemed the
National Guard liked sending guys out in the fields every month to start
the trucks. That is was good practice and training for diagnosing
problems an keeping the old things running. That we were asking for
money for a product that eliminated what they thought was a useful exercise.

As I remember the thermoelectric generator was not cheap, and it didn't
generate much electricity relative to the heat it was provided.

Posted by Michelle Steiner on August 15, 2008, 4:15 am

Well, first of all, it is not the Obama solution; it is a solution
recommended by US Government agencies and various automotive groups.  
Secondly, it's not "higher tire pressure"; it is "proper tire pressure".

Donate to the Leukemia and Lymphoma Society; help send Michelle to the marathon.

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