[Gasification] Which engine design might be BEST for woodgas?

Greg Manning a31ford at gmail.com
Sat Aug 13 12:22:12 CDT 2011


GF, I was speaking of a homemade Spark conversion assembly, no
advance, as you where speaking about a generator (generators run at a
fixed RPM).

the only thing that moves on a generator is the throttle, as to load
conditions, a 2 magnetic pole generator would need the generator's
armature to spin at 3600 rpm, a 4 pole at 1800 a 5 pole at 1200 rpm,
this is assuming 60 hertz, 50 hertz is different. 1500 for 4 pole if
memory serves me correct.

Greg


Advance is NOT needed in Generator conditions.



On Fri, Aug 12, 2011 at 10:00 PM, GF <gfwhell at aol.com> wrote:
> Hi Greg,
> Well I do have a  Red Lion. "Rate Mutiplier/Divider". The engine is complete
> with gearbox and injectors. I wondered if the aftermarket ignition system
> might have
> an electronic automatic advance system which is hopefully adjustable?
> However, Is the ignition system capable of firing 4 spark plugs
> simultaneously? or is a "distributor" included with the kit? Sorry to be
> such a novice. The engine is a four cylinder 1300 cc I believe.
>
> GF
>
>
> -----Original Message-----
> From: Greg Manning <a31ford at gmail.com>
> To: Discussion of biomass pyrolysis and gasification
> <gasification at lists.bioenergylists.org>
> Sent: Fri, Aug 12, 2011 9:33 pm
> Subject: Re: [Gasification] Which engine design might be BEST for woodgas?
>
> -Hi GF, List.
> It would make a good candidate rom the standoint of high compression,
> is is a three of four cylinder ?
> The injector pump could simply be removed and a  cover plate installed.
> As far as Solid-state timing and CDI spark, We could get "Real Fancy"
> with a PIC or Stamp, but really now, KISS (Keep It Simple Stupid), the
> most relable way would be a hall effect transister and a devide by 4
> counter (assuming that this engine is a 4 cylinder) the pulse train
> for the counter's clock cycle could be a second hall effect transistor
> counting flywheel teeth (the main sensor would be TDC or what ever
> basic advance you would want in the system.
> The Flywheel tooth sensor would be clocked by the teeth themself's,
> and a devide by "X" counter would count "X" flywheel teeth and then
> advance the devide by 4 counter for spark trigger.
> the entire SI conversion unit could be housed in a WP zinc project box
> (Hammond or equ.) and the hall effect transistors are available from
> most electronics supply houses or Woodward (used on the L or M series
> position controlers).
> The entire unit (trigger assy), NOT CDI or coil packs or plug
> conversions, should cost under 20 bucks, the rest would be in the
> 100-250 area.
> Getting a set of injectors from the scrapyard would save on design
> cost of the sparkplug conversion, by using the spare injector bodies
> as the "meat" of the plug converters.
> Sparkplugs,  I would assume that a 1" (25mm) reach plug wold be required.
> Champion has a "find by type" application
> http://www.championsparkplugs.com/search_char.asp?threadSize=14mm&hexSize=&gap=&seatType=gasket&terminalType=&heatRange=&reach=25.4mm+%281%22%29&resistor=&action.x=44&action.y=14
> (watch for word wrap on the above)
> Greg
> On Thu, Aug 11, 2011 at 7:23 PM, GF <gfwhell at aol.com> wrote:
>> Greg,
>> I have an old complete Rabbit Diesel engine (early version).Do you think
>> this would make a suitable candidate for conversion to "Wood GAS"
>> for driving a 15kw alternator? If so what solid state ignition system
>> should
>> I substitute for the injector pump?
>>
>> GF
>>
>> -----Original Message-----
>> From: Greg Manning <a31ford at gmail.com>
>> To: Discussion of biomass pyrolysis and gasification
>> <gasification at lists.bioenergylists.org>
>> Sent: Thu, Aug 11, 2011 7:49 pm
>> Subject: Re: [Gasification] Which engine design might be BEST for woodgas?
>>
>> Greetings Pete, and list.
>> Large piston, long stroke (slow RPM),  many cylinder (8+), high
>> compression engines, are the best Candidates
>>  A 16 cylinder 1000 CID 15 to 1 Compression, 5" + stroke would be ideal.
>> Caterpillar makes a Really Nice 3412. remove the injectors, double the
>> headgaskets,  re-lash the valves for the higher head height, install
>> SI unit in place of the injector pump... would be fantastic !!!!
>> anyone got a cool 40 grand kicking around for the engine ??
>> Greg Manning
>> On Thu, Aug 11, 2011 at 4:54 PM, Pete & Sheri <spaco at baldwin-telecom.net>
>> wrote:
>>>
>>>
>>> Since folks are currently commenting on their favorite exotic engine,
>>> maybe
>>> it would be worthwhile to examine the whole field of “funny” engines that
>>> have appeared and disappeared over the years as candidates for  the
>>> unique
>>> properties of producer gas/woodgas, etc.
>>>
>>>
>>>
>>> Of course, I have my own favorite funny engine, invented by the brother
>>> of
>>> a
>>> co worker, but I will not burden you all with that one for now.
>>>
>>>
>>>
>>> There may even be some value in imagining a ground-up engine design that
>>> would be IDEAL for our fuel.
>>>
>>>
>>>
>>> Pete Stanaitis
>>>
>>> ------------------
>>>
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>>>
>>>
>> --
>>  Regards,
>> Greg Manning,
>> Brandon, Manitoba, Canada
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> --
>  Regards,
> Greg Manning,
> Brandon, Manitoba, Canada
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>



-- 
 Regards,

Greg Manning,
Brandon, Manitoba, Canada




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