I must say, your efforts are very interesting and have a better chance of producing a device that would be fuel efficient. ' at: '' j.w.holmes@att.net
/techref/idea/www.flashsteam.com you will need a high-pressure capable injector to a reach high operating speed with your engine. also if variable valve lift is incorperated in such a valve. you will be able to very very acuritely control the speed. I have already done this. check out flashsteam.comON 20030111@9:13:03 PM at page: http://www.sxlist.com/techref/idea/mc-heat-inject.htm JMN-EFP-786 James Newton published post 37632.8667708333 j.w.holmes@att.net
/techref/idea/www.flashsteam.com you will need a high-pressure capable injector to a reach high operating speed with your engine. also if variable valve lift is incorperated in such a valve. you will be able to very very acuritely control the speed. I have already done this. check out flashsteam.comJames Newton replies: I don't think so... My idea is to inject cool (non-heated) water into a heated cylinder. Since there is no need to compress the "fuel" at top dead center, the exhaust valving could be modified to stay open until just before TDC rather than closing at the bottom before a compression stroke. At TDC, there would be NO pressure in the cylinder. A fuel injector will probably be overkill. Any water spray mechanism would be sufficient.
I must say, your efforts are very interesting and have a better chance of producing a device that would be fuel efficient.
|Delete 'P-' before: '' but after: 'http://www.ni.com/devzone/advisors/motion/mineaba.htm Your unit (or at least its series) is listed there along with the specs.' at: '' skyrianos@hotmail.com asks:
Who is the author of this article? I need some info on "AstroSyn PN: EM-217 Type: 17PM-K041-P2F NO: T4Y24". Can he/she contact me? Thank you in advanceON 20030112@8:45:40 AM at page: http://www.sxlist.com/techref/idea/lccam.htm JMN-EFP-786 James Newton published post 37633.1088657407 skyrianos@hotmail.com asks:
Who is the author of this article? I need some info on "AstroSyn PN: EM-217 Type: 17PM-K041-P2F NO: T4Y24". Can he/she contact me? Thank you in advanceJames Newton replies: http://www.ni.com/devzone/advisors/motion/mineaba.htm Your unit (or at least its series) is listed there along with the specs.
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/techref/idea/www.flashsteam.com
I would like to state that you are theoretically you are correct. You could in fact wait for the top end to heat up to a couple hundred degrees. And set up a simple cold water injection system. Thru the spark plug port. And the engine probably would run. It is interesting that you are using a two cycle approache. And also that in your design that air cooling fins are common on motorcycle engine's. And that a "pod of aluminum fins" is an exellent solar energy receptor.
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j.w.holmes@att.net
James you have some very dynamic reasoning skills. I think its cool that you built a steam engine with your dad. In fact I remember visiting steam fairs sponsored by my grandmother's brother. When I was young. they were in Michigan and were called the steam engine days. My grandpa says it was he's uncle Babe Ott. They would have an auction and a small flea market and such. And people would be there running steam engines that powered farm equiptment. I remember this one year they took us over to the work shop. And showed us one of the restorations, that uncle Babe's son was working on. It was a full size steam farm tractor that was buried in the woods somewhere in Canada.
I agree with you in the fact that the valve train in an engine maybe modified to accomplish what your saying.
In my opinion.. If.... you can make the engine work under its natural configuration. Such as four cycle. You are better off in general. But you will need a high pressure capable injection system to do this. Since the idea of running a four cycle steam engine is essentally obvious. "i.e." just substituting a chemical reaction with a thermodynamic one. A four cycle steam engine should not be patentable. So anyone should feel free to try to run a four cycle steam engine.
It is interesting that you mentioned drilling a hole in the side of the cylinder. In fact in some configurations for direct injection. Drilling a hole in the side of the cylinder is the technique of getting the gasoline in. I first heard about this being done in 1993. It was done by a large auto manufacturer. And they had problems using a standard fuel injector. But they did something and it apparently worked. The vehicle got 80 miles to the gallon. Reportedly with good performance. Unfortunately this technique won't work for the flash steam engine. With an "I.C." engine you have the luxury of being able to initiate the reaction of the power pulse or combustion at anytime. Thru the spark plug. So the expandable liquid may enter at the bottom of the stroke and conveniently won't react until the spark plug fires. It doesn't happen this way with a flash steam engine. In fact the instant the water enters the combustion chamber (or cylinder) it starts to flash. This will cause pressure compression on an up stroke. Or go strait out the exhuast with your modifications.
Heat of rejection is a strange "animal". And will not apply in the flash steam engine you describe. Since you only have one heat input source for your engine cycle. "i.e." the heated engine block. And heat of rejection attempts to explain temperature gradient (or difference) of the btu energy between "two" heat source inputs. The second heat source is there mainly to improve engine performance. And heat of rejection offers an explanation "why". The engine cycle that your working with is simpler to explain thermodynamically. Since you can use the steam tables "1 to 1". And the cold water that is being injected into the engine. Will cool the engine down in a simple to calculate way (neglecting the mass of the engine block)By contrast when you inject superheated water (pre-heated) the engine block conserves heat. And does not cool down in the same way or as fast. As with a single heat source as you are suggesting.
Your concept of simplicity and low cost is admirable. And I hope to see your engine running.
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Cutting the first wheel (or trying to) with a Dremel and a Roto-Zip bit clamped to the box tube arm. Lots of chatter with course bits and lots of clogging up with fine bits. My saber saw does better, and the rotary tool can then be used to clean up the cut.
ON 20030126@12:13:27 AM at page:
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JMN-EFP-786 James Newton removed post 37646.6019444444
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I’m trying to use HPGL to plot graphics from a program I wrote (turbo pascal). My problem is to write texts on my graphics. I guess I have to use such a sequence :
PAx,y ; Beginning of text
PD ; Pen down
LB ? ? ? ; Writing the text
PU ; Pen up
What is the syntax of LB ?. Is it the correct statement ?
Is there a statement to define the size of the characters ?
Is the y axis oriented up or down ?
Thanks a lot for your help
Michel
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