[Gasification] Fwd: Gasification Digest, Vol 2, Issue 25

Thu Aug 17 14:14:42 CDT 2006

Kevin

Well, it most have something to do with the scotch yoke, a later timing  
so the engine do not work against itself, a longer combustion time, a  
better combustion. That is also what they clearly say, it is building  
up an incredible heat in the combustion process, something like 1000 C,  
it can do a heck of rpm because of the in line motion, what also means  
a little wear on the cylinder wall.

Kenn
torsdag 17. aug 2006 kl. 17:36 skrev Kevin Chisholm:

> Dear Kenn
>
> Can you, or anyone, see anything specific about this engine that would  
> suggest that there is a rational basis for improved fuel efficiency?
>
> If not, then this would have to be classed as an "unsubstantiated  
> claim, with no reason to believe it is true."
>
> Best wishes,
>
> Kevin
>
> ----- Original Message ----- From: "kenn johnsen" <kennj at webspeed.dk>
> To: <gasification at listserv.repp.org>
> Sent: Thursday, August 17, 2006 11:19 AM
> Subject: [Gasification] Fwd: Gasification Digest, Vol 2, Issue 25
>
>
>>    It is claimed to use 1/4 of a pound off fuel, per horse, and that  
>> is
>> with a carburetor, what would happen if the Aussie Orbitel got there
>> hands on it.
>>
>> Kenn
>>>
>>> Hi Drew,
>>>
>>> I mentioned the Bourke because I personally DON'T KNOW.  Except that
>>> Bourke
>>> produced and sold 30cc models of it in the 1950s and others now make
>>> certain
>>> performance claims for it.  Plus one of the websites shows a 30cc
>>> Bourke now
>>> being tested periodically against a 24 KW generator.   A 24kw  
>>> generator
>>> would normally need 48 shp so that picqued my interest.  Whether he's
>>> able
>>> to run it full load with his Bourke engine, again I don't know.
>>>
>>>>> http://en.wikipedia.org/wiki/Bourke_Engine<<
>>>
>>> The problem with Wikipedia is articles may well be written by
>>> competitors.
>>> In the case of the Bourke Engine, they might be disinformation  
>>> written
>>> by GM
>>> or Exxon public relations flacks.
>>>
>>> The most I can say is developments in the tiny Bourke engine field  
>>> seem
>>> worth watching given the claims made for the engine's performance.
>>> Conventional theoretical wisdom is often overturned by actual
>>> experimental
>>> results.  It might develop into a good gasification engine someday.
>>> Or it
>>> may always be a spurious crackpot 'invention' always needing more
>>> development funding but never delivering any useful results.  Similar
>>> to
>>> hydrogen fusion and enyzmatic conversion of cellulose to ethanol.
>>>
>>> Regards,
>>>
>>> Mark
>>>
>>>
>>>> Date: Tue, 15 Aug 2006 09:13:07 -0700
>>>> From: drew <drew at artforging.com>
>>>> Subject: [Gasification] Bourke Engine and Steves Gassifier
>>>> To: Gasification at listserv.repp.org
>>>> Message-ID: <44E1F293.80907 at artforging.com>
>>>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>>>
>>>> The 1936 patent drawings of the bourke engine are here
>>>>
>>>> http://patimg2.uspto.gov/
>>>> .piw?docid=US002122676&PageNum=2&IDKey=B2AB2A5BECE0&HomeUrl=http://
>>>> patft.uspto.gov/netacgi/nph-
>>>> Parser?Sect2=PTO1%2526Sect2=HITOFF%2526p=1%2526u=%25252Fnetahtml%252 
>>>> 5%
>>>> 25252FPTO%2525%25252Fsearch-
>>>> bool.html%2526r=1%2526f=G%2526l=50%2526d=PALL%2526S1=2122676.PN.%252 
>>>> 6O
>>>> S=PN/2122676%2526RS=PN/2122676
>>>> <http://patimg2.uspto.gov/
>>>> .piw?docid=US002122676&PageNum=2&IDKey=B2AB2A5BECE0&HomeUrl=http://
>>>> patft.uspto.gov/netacgi/nph-
>>>> Parser?Sect2=PTO1%2526Sect2=HITOFF%2526p=1%2526u=%25252Fnetahtml%252 
>>>> 5%
>>>> 25252FPTO%2525%25252Fsearch-
>>>> bool.html%2526r=1%2526f=G%2526l=50%2526d=PALL%2526S1=2122676.PN.%252 
>>>> 6O
>>>> S=PN/2122676%2526RS=PN/2122676>
>>>>
>>>> A 1994 patent for a similar engine but fancier scotch yoke
>>>>
>>>> http://patft.uspto.gov/netacgi/nph-
>>>> Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-
>>>> bool.html&r=41&f=G&l=50&co1=AND&d=PTXT&s1=bourke&s2=engine&OS=bourke 
>>>> +A
>>>> ND+engine&RS=bourke+AND+engine
>>>> <http://patft.uspto.gov/netacgi/nph-
>>>> Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-
>>>> bool.html&r=41&f=G&l=50&co1=AND&d=PTXT&s1=bourke&s2=engine&OS=bourke 
>>>> +A
>>>> ND+engine&RS=bourke+AND+engine>
>>>>
>>>>
>>>> The engine looks interesting, the pause at TDC and BDC are supposed  
>>>> to
>>>> make the engine run better?   I don't know?   The true linear travel
>>>> pistons look interesting.   I am not qualified to judge, and  
>>>> especialy
>>>> not from the meager info on thier site, or in the patent.  I do  
>>>> notice
>>>> that on the website they are selling an "revolutionary electronic  
>>>> fuel
>>>> cracker" which gives 15% better fuel rating.   This sort of add does
>>>> little for thier credibility from my point of view.
>>>>
>>>> The 1994 patent is licenced to Collins motor company in Austrailia,
>>>> they
>>>> have an artical on thier engine "soon to be released, after a bit of
>>>> testing"
>>>> http://www.findarticles.com/p/articles/mi_m3165/is_n4_v27/ 
>>>> ai_10615466
>>>>
>>>> The wikipedia page
>>>>
>>>> http://en.wikipedia.org/wiki/Bourke_Engine
>>>>
>>>> Says poor NO emissions are what killed it, same as the wankel I
>>>> suppose,
>>>> as higher combustion efficency is obtained, the seemingly inevitable
>>>> higher NO.    The scotch yoke mechanism seems like it could be (and
>>>> has
>>>> been) quite problematic too,  if it was huge and heavy like the old
>>>> steam gear, maybe, but in a "high output" low weight engine?
>>>>
>>>
>>>
>>> _______________________________________________
>>> Gasification mailing list
>>> Gasification at listserv.repp.org
>>> http://listserv.repp.org/mailman/listinfo/
>>> gasification_listserv.repp.org
>>> http://www.repp.org/discussiongroups/resources/gasification
>>>
>>
>>
>> _______________________________________________
>> Gasification mailing list
>> Gasification at listserv.repp.org
>> http://listserv.repp.org/mailman/listinfo/ 
>> gasification_listserv.repp.org
>> http://www.repp.org/discussiongroups/resources/gasification
>