Thumper Club Forum

Club House => Chatter => Topic started by: Ian on April 03, 2020, 09:58:05 PM

Title: Interesting article.
Post by: Ian on April 03, 2020, 09:58:05 PM

Maybe not "Thumper" relevant, but interesting nonetheless.

https://www.motorcyclenews.com/news/new-tech/two-stroke-motorbike/

Title: Re: Interesting article.
Post by: CrazyFrog on April 04, 2020, 06:46:37 AM

Excellent article Ian, thanks for sharing.  :D

Title: Re: Interesting article.
Post by: mthee on April 04, 2020, 10:12:20 AM

Yes, thanks for sharing. Clean 2 stokes - 🤯

Title: Re: Interesting article.
Post by: CrazyFrog on April 04, 2020, 11:30:59 AM

Quote from: mthee on April 04, 2020, 10:12:20 AM

Yes, thanks for sharing. Clean 2 stokes - 🤯

My two strokes are clean Matt, I only washed them the other day!  ;D

Title: Re: Interesting article.
Post by: Moto63 on April 04, 2020, 12:32:11 PM

🤣🤣🤪.... you walked into that one Matt 👍

Title: Re: Interesting article.
Post by: mthee on April 04, 2020, 04:15:49 PM

Oh, 💩!

Title: Re: Interesting article.
Post by: johnr on April 04, 2020, 08:18:17 PM

honda experimented with an ultra low emission two stroke mor than a 320 years  ago. iirc they even raced it in the paris dakar. i think it was called advaced radical combustion, or active radical combustion. there was adjustable compression on it too. then i recall queens university belfast running a project in conjunction with ford where they designed and fitted a super low emission two stroke engine into a fiesta as a proof of concept machine, it was moree powerful that the ford turbodiesel engine it replaced but better on fuel and had lower emissions than either the petrol or dieesel version. but again, it just disapeared without a trace.

Title: Re: Interesting article.
Post by: themoudie on April 04, 2020, 08:40:54 PM

Link to the New Scientist summary of the motor: New_Scientist_Stratified_charge_2-stroke (https://books.google.co.uk/books?id=XLlzpvKTIjMC&pg=PA545&lpg=PA545&dq=Queens+university+belfast+lean+burn+2+stroke+engine&source=bl&ots=oJVDjfZQwH&sig=ACfU3U0e_oMT_r2PxyicymwzJURBI27dsA&hl=en&sa=X&ved=2ahUKEwjYtNf1zc_oAhW4SRUIHVwIDwAQ6AEwBHoECAsQKA#v=onepage&q=Queens%20university%20belfast%20lean%20burn%202%20stroke%20engine&f=false)

Link to the lean burn engine paper presented by Queens University Belfast and the Ford Motor Co. at the 29th International MATADOR Conference, Manchester: Queens_University_Belfast_Ford_Motor_Co._lean_burn_engine_paper (https://books.google.co.uk/books?id=ujddDwAAQBAJ&pg=PA395&lpg=PA395&dq=Queens+university+belfast+lean+burn+2+stroke+engine&source=bl&ots=V5mn_z_wjl&sig=ACfU3U3thNwQ64TG0sg1bAde5Cpq2LLwXw&hl=en&sa=X&ved=2ahUKEwjYtNf1zc_oAhW4SRUIHVwIDwAQ6AEwBnoECAsQLQ#v=onepage&q=Queens%20university%20belfast%20lean%20burn%202%20stroke%20engine&f=false)

Enjoy the read.  ;D

Bill

Title: Re: Interesting article.
Post by: Ian on April 05, 2020, 08:17:40 AM

https://en.m.wikipedia.org/wiki/Honda_EXP-2

Title: Re: Interesting article.
Post by: iansoady on April 05, 2020, 08:48:03 AM

Gordon Blair was a very clever chap. IIRC he designed the annular discharge silencers ("bean cans") for the Norton Commando which actually increased power while reducing noise. Of course everyone (including me I confess) junked them in favour of peashooters which sounded more "motorbikish".