X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=H+OlPNQi c=1 sm=1 tr=0 a=n/Xlg0yIsnPJIPUS4JxKEw==:117 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=x7bEGLp0ZPQA:10 a=A-0mRrAPPO4A:10 a=MeAgGD-zjQ4A:10 a=eRLigfuSAAAA:8 a=Ia-xEzejAAAA:8 a=xPyZ54XvAAAA:8 a=meJbv3C4AAAA:8 a=x801LyqnCLCcNNuyONEA:9 a=QEXdDO2ut3YA:10 a=oOz5yF6qyDwA:10 a=cXJD-Wz8xM8bBWOnfRQA:9 a=oRIBi4ugTt5PwYa-:21 a=BfhXYjFvZD4iae-mNffo:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=LQCduUwlY3eUW_MavTj7:22 From: "Charlie England ceengland7@gmail.com" Received: from mail-io1-f47.google.com ([209.85.166.47] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 13194526 for flyrotary@lancaironline.net; Tue, 19 Nov 2019 15:03:34 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.166.47; envelope-from=ceengland7@gmail.com Received: by mail-io1-f47.google.com with SMTP id k13so24699930ioa.9 for ; Tue, 19 Nov 2019 12:03:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=evUh/XAn67UviK5QAreavgsvTGZbYwp8Bmg6HqnznXo=; b=q2wkybg0MuSoIaSJ/6GVAgqevwpGB+7GuCPwhpKBaXxA2pzMH2MooT1xyjiV3FIM/F 8ZmpnkM04zQ9PLqKXnQM+C8keXYspdj7P6v6FExopTVD3QO8r87b6h3bBQH9fyQ82WAV k6bAy2pyoR33tpz4ybEvZmszahDwI8LfPfCGapO/YU2KaDSLCPx6Y4+J7/FtETRVRetG /iMvUnoqliDYj1x4dh4Ax/VFrwC2GcwRby641U4ZDm2Q2t1SICgu+ZRXAEmX1DJEvu53 ugV62DKrkmkLw4bKg8hsOnnRNJ1+9GzIC+e4iJEr59LJ5AVFENMlbjeG/gZ5rI+K3cUZ Eo+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=evUh/XAn67UviK5QAreavgsvTGZbYwp8Bmg6HqnznXo=; b=U2GSe+mzcjQY3xrdpy2GmLSXpDzqKjXQx1I1V45ABLz61Q5x+ylN/VdF56PBmUz8Js tCOM7uF+2hCrAuluATzCpxJep1HTknpZnk4EinGe7p4K5UGSJTm+W0GhoCkf0zQSrBvv +mVe5EdmrOJAs1dRHN3shnvosz+B9oRYmYA2xjSpiJBSllXXp+y1s1McBTxQtOJACXB4 XWv/In/4ZHBSxtBFqTZAI0R8I88FvHMc1tlxpyKfEK9W0XE63QA1/zzThsYy0qY91QO7 oeghk43MLi2i8bCFURQtnkWfmDi4PhSTSaE5QIhFtD+sIvhzTBMgSirBCFIci/a2lJjj 0zKA== X-Gm-Message-State: APjAAAUghIaTrH7MlIvlrSj3ORrIiRF9oNoj2/DqERAC7aBpcafaJsk+ +Kpk8Rs3ST0L8fvUt1eUiYy6jJVHb0hA4g+Lr7zwWw== X-Google-Smtp-Source: APXvYqwM3g2KPJ3HTNzH2M2S31N2IeL6VWOFpflu4/SsTlsXPSMbnqBouh2DcKAyWgyl0ke7XQ39RnCk3K42Q6sdrp8= X-Received: by 2002:a5d:8555:: with SMTP id b21mr20743120ios.22.1574193795779; Tue, 19 Nov 2019 12:03:15 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Tue, 19 Nov 2019 14:01:52 -0600 Message-ID: Subject: Re: [FlyRotary] Re: Mufflers To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000014e410597b88e10" --000000000000014e410597b88e10 Content-Type: text/plain; charset="UTF-8" On Mon, Nov 18, 2019 at 11:57 PM Andrew Martin andrew@martinag.com.au < flyrotary@lancaironline.net> wrote: > > Kelly, I would if I had some, really did not expect it to work as I > deviated from the design a bit. Will be back at airport on weekend to take > photo, too late for construction photo. But nothing to it. > > I read about the idea by Gary Schwarz in this thread > , > post #7 , post #58 for his testing and post #142 sums up his findings. > Someone on here may know him as he was doing it for a rotary. Mine is much > shorter than his drawing below due to space constraints but the theory > works. > edit: Ahh!!! deleted his picture as too big to post. it is in his post #7 > mentioned above though. > Andrew > > That looks a lot like a simplified version (one less turn) of a standard automotive muffler. https://auto.howstuffworks.com/muffler3.htm The Aeroturbine tries to achieve similar effect (without the flow reversals) by using venturi effect to suck part of the exhaust around and then back into the central tube. Charlie --000000000000014e410597b88e10 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Mon, Nov 18, 2019 at 11:57 PM Andrew Martin andrew@martinag.com.au <flyrotary@lancaironline.net>= ; wrote:

Kelly, I would if I had some, = really did not expect it to work as I deviated from the design a bit. Will = be back at airport on weekend to take photo, too late for construction phot= o. But nothing to it.

I read about t= he idea by Gary Schwarz in this thread, post #7= , post #58 for his testing and post #142 sums up his findings.
Someone on here may know him as he was doing it for a rotar= y. Mine is much shorter than his drawing below due to space constraints but= the theory works.
edit: Ahh!!! deleted hi= s picture as too big to post. it is in his post #7 mentioned above though.<= /div>
Andrew

That looks a lot like a simplified versi= on (one less turn) of a standard automotive muffler.
The Aeroturbine tries to achieve similar effect (without the flow rev= ersals) by using venturi effect to suck part of the exhaust around and then= back into the central tube.

Charlie

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