http://groups.google.com/group/alt.autos?hl=en
Today's topics:
* How about the cutest car ever made? - 1 messages, 1 author
http://groups.google.com/group/alt.autos/t/b06f9b1a493d4a3a?hl=en
* Why not an engine-heated fuel injection system? - 3 messages, 3 authors
http://groups.google.com/group/alt.autos/t/9cf0936a30f95fc8?hl=en
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TOPIC: How about the cutest car ever made?
http://groups.google.com/group/alt.autos/t/b06f9b1a493d4a3a?hl=en
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== 1 of 1 ==
Date: Tues, Feb 2 2010 4:49 pm
From: "corpman"
The Nissan Figaro Story
Figaro lovers everywhere should thank Shoji Takahashi, a Japanese designer
who took his inspiration from the popular Swatch watches and the idea of
giving identical products different casings. From the Japanese 'boutique'
movement in car design, a retro fashion car was unveilled at the 1989 Tokyo
Motor Show under the slogan 'Back to the Future.' The Figaro was part of the
'Pike' series of retro cars produced by Nissan between 1987 and 1991.
Initially just 8000 cars were produced but demand meant the production of a
further 12000 and Nissan made the following press release in February 1991:
go to
www.import-direct.ca
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TOPIC: Why not an engine-heated fuel injection system?
http://groups.google.com/group/alt.autos/t/9cf0936a30f95fc8?hl=en
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== 1 of 3 ==
Date: Wed, Feb 3 2010 6:26 pm
From: "2.7182818284590..."
Suppose that the liquid fuel is allowed to circulate around the engine
block without oxygen. This would heat up the liquid to more than one
pressure, I'm sure. Also, a car engine operates at very high
temperatures, often much more than 212 F. Let's assume that it works
at 250 F.
I would think that allowing the gasoline to heat up without oxygen to
prevent combustion and eject inside the pistons at 2 atmosphere
pressure is a natural fuel injector, with perfectly atomized fuel.
What's wrong with this idea? The only thing bad that I can think of
is that the gas would rapidly expand inside the piston and partially
condense, perhaps, which may offset my "perfectly atomized fuel
charger idea".
== 2 of 3 ==
Date: Wed, Feb 3 2010 6:33 pm
From: "Androcles"
"2.7182818284590..." <tangent1.57@gmail.com> wrote in message
news:cd111930-051c-4c33-b0a1-1cbcb7468a0f@h2g2000yqj.googlegroups.com...
> Suppose that the liquid fuel is allowed to circulate around the engine
> block without oxygen. This would heat up the liquid to more than one
> pressure, I'm sure. Also, a car engine operates at very high
> temperatures, often much more than 212 F. Let's assume that it works
> at 250 F.
>
> I would think that allowing the gasoline to heat up without oxygen to
> prevent combustion and eject inside the pistons at 2 atmosphere
> pressure is a natural fuel injector, with perfectly atomized fuel.
>
> What's wrong with this idea?
Leak->explosive fire->death (plus excessive expansion of moving parts,
a minor secondary consideration). Car engines operate at much lower
temperatures than 212F, they use water as a coolant. That's what is wrong.
== 3 of 3 ==
Date: Wed, Feb 3 2010 6:54 pm
From: jimp@specsol.spam.sux.com
In sci.physics 2.7182818284590... <tangent1.57@gmail.com> wrote:
> Suppose that the liquid fuel is allowed to circulate around the engine
> block without oxygen. This would heat up the liquid to more than one
> pressure, I'm sure. Also, a car engine operates at very high
> temperatures, often much more than 212 F. Let's assume that it works
> at 250 F.
Bad assumption; the temperatures inside an engine are far higher then
that.
> I would think that allowing the gasoline to heat up without oxygen to
> prevent combustion and eject inside the pistons at 2 atmosphere
> pressure is a natural fuel injector, with perfectly atomized fuel.
Most fuels boil at relatively low temperatures.
Ever heard of the term "vapor lock"?
How do you get 2 atmosphere pressure on the intake stroke where the pressure
is usually local atmospheric?
Getting 2 atmospheres would require one hell of a turbocharger, roughly
doubling the fuel flow to keep the mixture correct, and likely would result
in either a melt down of the engine or seizure from things spot welding.
> What's wrong with this idea? The only thing bad that I can think of
> is that the gas would rapidly expand inside the piston and partially
> condense, perhaps, which may offset my "perfectly atomized fuel
> charger idea".
Well, for starters, the fuel expands in the cylinder, not the piston,
and the vaporization of the fuel helps keep the temperature inside the
cylinder down so it doesn't melt.
Other than those few minor nits, why don't you try it on your car and get
back to us.
--
Jim Pennino
Remove .spam.sux to reply.
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