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Trivoli, IL | still not happy about an engine....and the search began again....
came across...."free piston linear generator engine" say that 10 times fast....
and begin typing up ramblings. and then soon realized it was approaching 15 to 20 printed pages in length. as i attempted to figure out what i was looking for in a free piston linear generator engine.
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i am seeing a lot more Pro's than any engine so far....
--ability to have say 15:1 air compression in a .5 cubic inch of air space, or have 15:1 air compression in a 3 cubic inch of air space. when piston reaches TDC (top dead center)
--ability to have different stroke lengths, from either say 2" to 20" completely variable.
--ability to possible deal with engine knock, or even cause engine knock on purpose, and controlling everything via the linear generator.
--ability to remove some of the odd ball stuff of converting linear motion of a piston, to rotation motion. and then into electrical. it is straight linear motion of piston to straight electrical generation. no extra bearings, or anything.
--ability to have "magnetic" like bearings. to keep the piston for most part completely self centered within the cylinder. possibly reducing complete contact of piston and piston seals touching the cylinder walls.
--ability to "spin" the piston so what vibrations that do enter the piston. might be able to wobble itself out or possibly be able to better deflect a vibration coming in from air/fuel combustion and/or compression due the centrifugal forces of the spinning piston.
--ability to use multi fuel types, if not mixing different fuel types on demand and at different ratios in the some combustion cycle or different cycles of combustion.
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some of the tougher things for me, that took a while to think about and jump the gap between current age engines to these free piston linear generator engines.
--has been how to keep these pistons from turning into a bullet and shooting out the end of the cylinders.
--dealing with "vibrations" and theoretically as one website put it. and completely canceling out the vibrations.
--getting over the idea... that i was just dealing with an engine, and then a generator slapped to the drive shaft and treating each one separately. but rather needing to come to realization. that both combustion area and linear generator was a single unit. and the linear generator was a "real time sensor" and the linear generator could easily become a electrical actuator as well if not perhaps generating power in one spot and becoming an electrical actuator in another spot. ya.... it gets a little complicated. once ya dive into the electronics part of it.
--how to wrap wires around the piston for the linear generator, and reduce vibrations in 2 areas. one down the length of the piston. but also the spinning of the piston.
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do i go with a....
==1 cylinder, 1 piston, 1 combustion area
==1 cylinder, 2 pistons, 1 combustion area
==1 cylinder, 2 pistons, 2 combustion areas
==2 cylinders, 2 pistons, 1 combustion areas
==2 cylinders, 2 pistons, 2 combustion areas
==2 cylinders, 2 pistons, 3 combustion areas
==2 cylinders, 2 pistons, 4 combustion areas
ya a lot of choices...
1 cylinder, 2 pistons, 1 combustion area ((currently in favor of))
--the combustion area would be in the middle. and when air/fuel explode, each piston would be sent in opposite directions. hopefully canceling out vibrations.
--i should be able to tie both linear generators together (1 on each side of the combustion area) and control which way an explosion happens, and at same time if one linear generator go down, perhaps have enough fail safe. to keep one or both pistons from shooting out the ends of the cylinders.
--each piston would move half the distance. vs going with a single piston and same air/fuel mixture and compression ratio.
--not to sure about this one. creating a "vortex" or whirl pool or maybe better stated a tornado like air stream within side the cylinder and between the pistons in the center. to obtain better air mixing with fuel, and possibly heating up the intake air with hotter areas in cylinder to pre heat the air. if not possibly mixing intake air with some hotter exhaust air.
--not sure as of yet, 2 stroke or 4 stroke. which ever may be the case (other words both can happen at different power requirements for example or heat up or cool down cycles for the engine) the combustion pushes the pistons apart. and then the linear generator turns into electrical actuators to bring the pistons back together in the center.
the only issue with the above setup. is routing the stinking exhaust and intake air. so i have room to place a muffler and air filters. if that is not able to be solved then more likely looking at....
two of these...
==1 cylinder, 1 piston, 1 combustion area
that are back to back. (linear generators touch each other) but nothing is actually physically connected. beyond electrical wires.
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what has me some what discouraged....
--not seeing regular engine oil or like. being put into some of these "free piston linear generator engines" and using the oil to help get a better seal between piston and cylinder walls. granted the linear generator would act more like a magnetic bearing. and keep piston for most part dead center in the cylinder. but... the blow by of combustion and compression of air...
--not sure about... if not oil above. due i take coolant (water/antifreeze mix) and inject it near the linear generator of the piston. in attempt to cool down the piston, and try to keep more heat being transferred down to were the permanent magnets would be. (hot magnets = loosing magnetic forces, has me a tad worried) tempted to cut in kinda like a squirrel cage pattern into the piston. to create kinda of a turbine fan blade. and then shoot coolant across the blade to "control" spinning of the piston to some degree, and at same time cool the piston/s
--what i keep seeing as "air scavenging" and/or needing a turbocharger and/or supercharger or all 3. that whole compression of air. getting a tad to complex to visualize it all in my head.
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kinda encouraged being able to possibly stack 2,3,4,5 of ((1 cylinder, 2 pistons, 1 combustion area )) into a 20 inch x 20 inch area possibly. and each setup is completely and fully independent of each other. kinda like having 5 small engines, that can be electrical combined into a single large engine. ((ya i know, computer chip challenged, it is))
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i came across a few notes of "Bill Gates" from Microsoft, that lead me to a few patents, that are in his name and from looks most if not all the combinations are under his name for "free piston linear generator engine". along with some other engines in experimental doings. almost looks like he went on a spur, and funded a few different engine types within a short range each other being funded. though have not went that far to try and follow money trail. to see if common setup is going or if these are shared ventures in the various engines.
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bunch of links. (turning into a click fest) so no order to them....
http://www.rx7club.com/forum_index.php wankle engine mazda forum
went on a search of trying to find a database of engines.... came across these sites...
http://www.researchandmarkets.com/reports/1793301/nafta_diesel_engi...
http://www.epa.gov/oms/certdata.htm#largeng
http://www.dieselenginemotor.com/index.php
http://en.wikipedia.org/wiki/List_of_aircraft_engines
http://en.wikipedia.org/wiki/Exhaust_pulse_pressure_charging
http://en.wikipedia.org/wiki/Pressure_wave_supercharger
http://40yrs.blogspot.com/2008/05/revolutionary-aero-engine-concept...
http://www.egr.msu.edu/mueller/projects_waverotor.htm
http://en.wikipedia.org/wiki/Homogeneous_charge_compression_ignitio...
i gotta call out below 2 links. lots of animations for different pumps ((CLICK ON STATIC IMAGES TO SEE ANIMATION))
http://www.liquid-dynamics.com/animations/pumps.htm
http://www.liquid-dynamics.com/animations/
http://www.pumpscout.com/articles-scout-guide/pump-types-guide-aid1... (more pump types)
links to free piston engines (not always a linear generator attached)
http://www.pat2pdf.org/patents/pat20090091138.pdf (hopefully it shows up had some problems, i think this shows all the diagrams for the Bill Gates patent for free piston linear generator engines.)
http://www.freepistonpower.com/Default.aspx
http://nextbigfuture.com/2011_10_02_archive.html
http://www.jsexports.com/heat-and-thermodynamics.html
http://www.sciencedirect.com/science/article/pii/S0306261911002935
http://peswiki.com/index.php/Directory:Wave_buoys
http://peswiki.com/index.php/Directory:Linear_Combustion_Electromag...
http://peswiki.com/index.php/Directory:Linear_Motors_and_Generators
http://www.lceproject.org/en/about-project-history.php
http://www.dlr.de/dlr/en/desktopdefault.aspx/tabid-10122/333_read-6...
http://www.youtube.com/watch?v=sDqmXgIFIkg (video for above engine)
http://en.wikipedia.org/wiki/Free-piston_engine
http://www.freikolben.ch/
http://www.innas.com/Chiron_FPG.html
http://www.vanderbilt.edu/dces/fpc.html
http://books.google.com/books?id=Ci0DAAAAMBAJ&pg=PA138&dq=popular+s...
http://en.wikipedia.org/wiki/Linear_motor
OPOC opposed piston opposed cylinder engines
http://www.pattakon.com/pattakonPatPOC.htm
http://indianmotosblog.com/ecomotors-opoc-engine
http://www.propulsiontech.com/aboutapt.html
http://www.popularmechanics.com/cars/news/industry/the-lighter-bett...
http://www.motornature.com/2010/07/bill-gates-invests-in-the-opoc-e...
http://www.pattakon.com/pattakonOPRE.htm
http://www.gollemotor.de/motorenbau/geschichte ((needs translated to English)) i used google, put link as the search term, click search, and a "translate" option should come up.
http://www.thetruthaboutcars.com/2010/07/inside-ecomotors-revolutio...
http://www.aviationweek.com/Blogs.aspx?plckBlogId=Blog:a68cb417-336...
http://www.automobilemag.com/green/news/0912_two_stroke_engines_exp...
http://www.weaponscache.com/forum/cars-wc/4634-opoc-opposed-piston-...
someone put a lot of work into this thread. about sterling engines....
http://armonia.forumcommunity.net/?t=20227817
have not taken time to actually read up on it yet.
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alright this is getting down right daunting of pure amount of engines out there. it is no longer about this or that type of engine, but rather needing togo down a list of what you are needing. and what might fit a given situation the best. with so many of these engines are experimental. what is it going to take for all these companies just to come together and set down, and make a list of things. and get these engines off the ground. vs fumbling around repeating same thing over and over again. | |
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SSTT (sideways snake train tractor) new idea possibly?
