Re: Lower size limits of the internal combustion engine
- From: "Sorcerer" <Headmaster@xxxxxxxxxxxxxxxxxx>
- Date: Wed, 27 Sep 2006 23:39:00 GMT
"hanson" <hanson@xxxxxxxxx> wrote in message
news:S2BSg.3370$Kw1.966@xxxxxxxxxxx
| Brablo wrote:
| >there could never be a 4-CYCLE engine that is quite small,
| >
| [hanson]
| What is "quite small"?. There are plenty engines that are
| 100+ times smaller than your 3000 cc. They are commercially
| available. See below. The notion in your last sentence is
| dubious since you can always imitate the start by external
| means.
|
| see: D-STAR Engineering Corporation, or see:
| http://www.thirtythousandfeet.com/rc.htm#engines
| http://www.mecoa.com/index1.htm
| http://findarticles.com/p/articles/mi_qa3819/is_200009/ai_n8909610
| http://www.robinamerica.com/engines/class.lasso?Class=Micro
| Examples: (by all means not the samllest ones)
| 4-stroke engine:
| Displacement 24.5 (cc)
That's weed wacker size, enough to power a pedal bicycle.
I think he wants something smaller, he seems to have
a problem with the kick start on a 1956 vintage Harley.
A friend of mine made a steam engine with a 1/8" bore
and 1/2" throw, 1 stroke. It was pretty much like this:
http://tinyurl.com/k5pfe
I saw it run on compressed air.
These were around when I was a kid:
http://tinyurl.com/ms76g
Androcles
| Bore x Stroke 34 x 27 (mm)
| Max HP/RPM 1.1/7000
| Dry Wt lbs 6
|
| or 2 stroke engine:
| Displacement-1.60ci (26cc);
| bore-1.32 inches (33.6mm);
| stroke-1.16 inches (29.6mm);
| practical rpm-1,800 to 10,000;
| output-3.7hp at 9,000rpm;
| weight-32.6 ounces (925g).
| >
|
| "Brablo" <gestureofrespect@xxxxxxxxx> wrote in message
| news:1159373372.225427.326580@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| >A typical piston gas engine is about 3.0 L of internal volume. Of
| > course there is no upper limit to this size. However, there should be a
| > lower-limit to this size. I woul think that there could never be a
| > 4-CYCLE engine that is quite small, since there would not be enough
| > mass/force generated to initiate the compression cycle.
| >
| > What do you think?
|
|
|
|
|
.
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- Lower size limits of the internal combustion engine
- From: Brablo
- Re: Lower size limits of the internal combustion engine
- From: hanson
- Lower size limits of the internal combustion engine
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