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Offline Flettner

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TPI
« on: May 12, 2019, 06:20:22 PM »
A big thank you to Ray Smith for resurrecting this site. Rebooting all the old stuff on My Fuel injection development has paid dividends in terms of a resource  to show time lines for the development as it happened in real time. KTM recently tried to patent the TPI system, claiming they invented it. Actually a recent article put out by KTM now claims they accidentally " discovered'' TPI in 2014 , perhaps here on TSM I would say , but never the less a patent was applied for. TM, understanding that TPI was free for any manufacturer to use has set up and is starting to sell 300 TPI enduro bikes. They were unhappy that KTM tried to pull this greedy trick. They came to me for help to stop this patent application, understanding that I had done TPI first and published it . I pointed them to this web site where there is a time line on development. I have heard that the KTM patent application has been declined because of the appeal TM has put up, using TSM as a heads up. So this means TPI is now free for any manufacturer to use. Good for twostrokes.

Go buy a TM ;D
« Last Edit: May 13, 2019, 12:59:06 PM by rsmith »

Offline rsmith

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Re: TPI
« Reply #1 on: May 13, 2019, 12:58:47 PM »
You are welcome.

Your documentation of that design was how I found TSM in the first place. I was saddened by its loss when the server crashed and was a big part of why I worked to get the original content back.

I am glad it paid off.

(BTW my name is Ron :)

Offline Flettner

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Re: TPI
« Reply #2 on: May 13, 2019, 04:14:32 PM »
Opps, sorry Ron , for some reason I always thought it was Ray? Please accept my apologies.
Im keen to post on my mk2 system but have promised TM I will keep mum about it at the moment. In the next few months will be make or brake, Im about to finally finish my 360 rotary valve revers cylinder mk2 TPI engine, Ive told TM if they do not do something with mk2 TPI by then, I'm publishing it, here.

I can and will post some update pictures, just with a rag over the cylinder for now, there is a lot more to this engine  apart from just the mk2 TPI.

                   

 

Offline rsmith

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Re: TPI
« Reply #3 on: May 13, 2019, 08:54:38 PM »
I am looking forward to seeing your next masterpiece!

--Ron.

Offline eprovenzano

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Re: TPI
« Reply #4 on: May 14, 2019, 06:23:56 AM »
Flettner I always enjoyed following your TPI research (even it much of it was WAY over my head)...  Looking forward to see what you've been working on...  Please post when you can.   8)
Eric Provenzano
2019 KTM 300 XCW TPI
2000 KTM 300 EXC (Son's)
2001 KTM 380 EXC
Sold 1991 KDX 200... fun play bike
Sold 1999 KX250
Sold 1999 YZ125 (son's)
Sold 2001 Yamaha TTL 125 (son's 1st bike)
Sold but never forgotten 1974 Honda Elsinore CR250M
Sold 1974 Honda Elsinore CR125

Offline Flettner

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Re: TPI
« Reply #5 on: June 26, 2019, 01:26:09 PM »
https://youtu.be/bhKrRlZxomc

New rotary valve timing adjuster and throttle, all in one.

« Last Edit: June 26, 2019, 01:29:41 PM by Flettner »

Offline THE DINGO

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Re: TPI
« Reply #6 on: June 26, 2019, 04:38:38 PM »
wig blown back!

Offline eprovenzano

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Re: TPI
« Reply #7 on: July 01, 2019, 03:23:07 PM »
Looks like you still need to connect a few wires...  lol
Eric Provenzano
2019 KTM 300 XCW TPI
2000 KTM 300 EXC (Son's)
2001 KTM 380 EXC
Sold 1991 KDX 200... fun play bike
Sold 1999 KX250
Sold 1999 YZ125 (son's)
Sold 2001 Yamaha TTL 125 (son's 1st bike)
Sold but never forgotten 1974 Honda Elsinore CR250M
Sold 1974 Honda Elsinore CR125

Offline Flettner

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Re: TPI
« Reply #8 on: July 05, 2019, 01:22:15 PM »
yes, those bloody wires, there is enough of them. Just sent the last of the kick start components away for case hardening. Should see them back next week, then to make a case around them.

Offline Flettner

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Re: TPI
« Reply #9 on: July 05, 2019, 01:27:53 PM »
have spent a lot of time finishing off my home cast facility, finally a proper foundry I can still use on the wet days.

Offline THE DINGO

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Re: TPI
« Reply #10 on: July 06, 2019, 03:01:58 PM »
When all said and done flettner, I believe a book is in order.

Offline eprovenzano

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Re: TPI
« Reply #11 on: July 08, 2019, 07:19:21 AM »
That foundry is some top notch stuff...  awesome work.
Eric Provenzano
2019 KTM 300 XCW TPI
2000 KTM 300 EXC (Son's)
2001 KTM 380 EXC
Sold 1991 KDX 200... fun play bike
Sold 1999 KX250
Sold 1999 YZ125 (son's)
Sold 2001 Yamaha TTL 125 (son's 1st bike)
Sold but never forgotten 1974 Honda Elsinore CR250M
Sold 1974 Honda Elsinore CR125

Offline Flettner

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Re: TPI
« Reply #12 on: July 11, 2019, 02:11:37 AM »
All the kick start and left side bob weight drive stuff back from hardening. All 58 / 60 Rockwell. Bearing hardness.
The little splined shaft is Honda on the outside and Kawasaki spline on the inside, one way drive. Other wider gear is bob weight drive and kick start idler.

Offline Flettner

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Re: TPI
« Reply #13 on: July 12, 2019, 01:40:27 AM »
shafts ground and parts assembled.
« Last Edit: July 12, 2019, 03:12:52 AM by Flettner »

Offline Flettner

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Re: TPI
« Reply #14 on: July 15, 2019, 09:28:04 PM »
https://youtu.be/MxyTBXiaFQw

My new 175 piston, not fully machined outside yet and the lump on the top is so I can hold the piston while I finish the cutaways, ring groove etc. No gudgin hole to worry about fouling with exhaust and transfers ( short circuiting), exhaust on the new 175 cylinder will be simple bridged port but each port (2 exhaust ports) will exit the cylinder separately. Exhaust ports will be all the way round to half way. Max exhaust blow down time area. Bridge can be water cooled right up to the cylinder wall.
« Last Edit: July 15, 2019, 09:30:47 PM by Flettner »