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Join Date:

07-18-2016

Last Activity:

06-24-2017 4:22 PM

38 Likes on 28 Posts 

LATEST ACTIVITY

  • Posted in thread: PatATE: Asymmetric Transfer and Exhaust in two-stroke engines on 06-24-2017 at 04:00 PM
    Hello all.Here is an unconventional two-stroke (the PatATE) in comparison to a conventional
    two-stroke: main difference is that the exhaust port is now a "hybrid" port (the 4): at the
    end of the expa...

  • Posted in thread: PatRoVa Rotary Valve engine on 06-15-2017 at 03:57 AM
    Hello all.Today the US Patent Office (USPTO) mailed the Issue Notice for a patent granted for
    the PatATi engine: at and the patent is to be published July 4, 2017.ThanksManolis
    Pattakos

  • Posted in thread: PatRoVa Rotary Valve engine on 06-13-2017 at 03:11 PM
    Hello all.Today the US-PTO published the USA patent granted for the PatRoVa rotary valve.Here
    is the link: Pattakos

  • Posted in thread: PatRoVa Rotary Valve engine on 05-25-2017 at 05:22 AM
    Hello all. According an Issue Notice of the US Patent and Trademark Office: a patent is
    granted for the PatRoVa Rotary Valve. The patent number is US9,677,434. Thanks Manolis Pattakos

  • Posted in thread: PatRoVa Rotary Valve engine on 05-25-2017 at 05:21 AM
    Hello Dennis and thanks. The sealing is based on keeping the clearances too small, preferably
    without sealing means (which require lubrication, consume energy, etc). The question turns to
    whether the ...

  • Posted in thread: PatRoVa Rotary Valve engine on 04-21-2017 at 11:06 AM
    Hello all. The following drawings show a 2-stroke Flat-Head PatRoVa: The last
    animation is stereoscopic (more on how to see stereoscopically at ) The piston is shown in
    the BDC (bore 116...

  • Posted in thread: PatRoVa Rotary Valve engine on 04-21-2017 at 07:25 AM
    Hello. Pattakos

  • Posted in thread: PatRoVa Rotary Valve engine on 04-19-2017 at 04:27 PM
    Hello.Regarding the spark advance and the combustion duration in the PatRoVa rotary valve:QUOTE
    from about the Bishop rotary valve engine:“This oblique flow through the window is
    responsible f...

  • Posted in thread: PatRoVa Rotary Valve engine on 04-18-2017 at 09:16 AM
    Hello 2002hummer. You write: “Question? What sort of compression ratio do you get. With
    the large volume in the rotary valve assembly there must be a way to bring the compression up
    around 9.5 t...

  • Posted in thread: PatRoVa Rotary Valve engine on 04-13-2017 at 06:01 AM
    Hello Niels You write: “I like it very much and think it will look even nicer as uniflow
    Two stroke with a single chain or belt for exhaust-valve drive” A 2-stroke version of the
    PatRoVa i...

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