X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "Marc Wiese cardmarc@charter.net" Received: from [47.43.20.31] (HELO impout007.msg.chrl.nc.charter.net) by logan.com (CommuniGate Pro SMTP 6.3.13) with ESMTPS id 1777713 for flyrotary@lancaironline.net; Fri, 03 Feb 2023 10:31:56 -0500 Received-SPF: pass receiver=logan.com; client-ip=47.43.20.31; envelope-from=cardmarc@charter.net Received: from smtpclient.apple ([190.185.72.190]) by cmsmtp with ESMTPA id NxzNpOXN4MkkhNxzQp0PeD; Fri, 03 Feb 2023 15:28:38 +0000 Authentication-Results: charter.net; auth=pass (PLAIN) smtp.auth=cardmarc@charter.net X-Authority-Analysis: v=2.4 cv=P/gpOwMu c=1 sm=1 tr=0 ts=63dd2826 a=W4ItsgHu5957/U13NaGkeA==:117 a=W4ItsgHu5957/U13NaGkeA==:17 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=z28CsWIWD7AP26qqXxUA:9 a=QEXdDO2ut3YA:10 a=U2EsnQFc4zPoEIci:21 a=_W_S_7VecoQA:10 a=Urk15JJjZg1Xo0ryW_k8:22 Content-Type: multipart/alternative; boundary=Apple-Mail-9B1DBB2D-9894-4D17-AE2D-D64E8A17ACE3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) Subject: Re: [FlyRotary] Re: Fun with AI for the rotary Date: Fri, 3 Feb 2023 10:03:14 -0400 Message-Id: <98690122-2159-488E-8C0D-089C2969B186@charter.net> References: In-Reply-To: To: Rotary motors in aircraft X-Mailer: iPhone Mail (20C65) X-CMAE-Envelope: MS4xfOUGDUCZnVBxjnTA38Be7wt1yOTIjFHuzwD8dWvfW8MWsIdMbG2lH8suhUOWMsBTyj+1YyYr9C6kyr2kNx3dcZzB3d3fuI84nFFiTNqzAeCJBbYogqkq /2vLviWOI11AZoHhQ3NmnB9tuNfAs0MMJ0RdYzZLNeSkOjHec9IFFzqqftc/S/NZGbLDgEgwuUnOG+3ZTUXOnzP+HAmzlxupPQg= --Apple-Mail-9B1DBB2D-9894-4D17-AE2D-D64E8A17ACE3 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I think I have that PL design too. But I didn=E2=80=99t think it included an= y inner packing of any sort? M Sent from my iPhone > On Feb 3, 2023, at 9:23 AM, Le Roux Breytenbach breytenbachleroux@gmail.co= m wrote: >=20 > =EF=BB=BFI have a design of the =E2=80=9Clate Paul Lamar=E2=80=9C somewher= e in my archives. > Don=E2=80=99t know if i may share it on the group ? > That was of a proposed design of a freeflow muffler for rotaryengines. > He shared it with all the people on the group. > Don=E2=80=99t know if it was patented? >=20 > Let me know >=20 > Le Roux >=20 > Sent from my iPhone > Le Roux Breytenbach=20 >=20 >>> On 03 Feb 2023, at 14:53, Doug Lomheim rv9flyer13b@gmail.com wrote: >>>=20 >> =EF=BB=BFSo where can we find the proposed =E2=80=9Cspecialist in exhaust= systems=E2=80=9D that it suggests? For our applications that would probabl= y be someone on this list!? :) >>=20 >> Doug =20 >>=20 >> =20 >>=20 >>=20 >>>=20 >>> Designing a muffler for a Mazda rotary engine requires taking into accou= nt several factors, including: >>>=20 >>> Engine specifications: The muffler must be compatible with the size and o= utput of the engine. >>> Noise reduction: The muffler should reduce engine noise to an acceptable= level, while also allowing the engine to function efficiently. >>> Performance: The muffler should not restrict exhaust flow and impact eng= ine performance. >>> Durability: The muffler must be durable and withstand the high temperatu= res and vibration generated by the rotary engine. >>> A muffler design for a Mazda rotary engine could include a straight-thro= ugh perforated core, surrounded by sound-deadening materials such as fibergl= ass or ceramic wool. The muffler should be mounted using flexible connection= s to reduce vibration and ensure a secure fit. Additionally, heat shields co= uld be used to protect the muffler from high temperatures. >>>=20 >>> These are general guidelines and the exact design may vary based on spec= ific engine and performance requirements. Consulting with a specialist in ex= haust systems is recommended to ensure a muffler that is optimized for your s= pecific engine and application. >>>=20 >>> You're welcome.=20 >>> ;-)=20 >>=20 >>=20 --Apple-Mail-9B1DBB2D-9894-4D17-AE2D-D64E8A17ACE3 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable I think I have that PL design too. But I di= dn=E2=80=99t think it included any inner packing of any sort?
M

<= div dir=3D"ltr">Sent from my iPhone

On Feb 3, 2023, at 9:23 AM, Le Roux Breytenbach breytenbachlerou= x@gmail.com <flyrotary@lancaironline.net> wrote:

<= /div>
=EF=BB=BFI have a design of the= =E2=80=9Clate Paul Lamar=E2=80=9C somewhere in my archives.
Don=E2=80=99= t know if i may share it on the group ?
That was of a proposed des= ign of a freeflow muffler for rotaryengines.
He shared it with all= the people on the group.
Don=E2=80=99t know if it was patented?

Let me know

Le Roux

Sent from my iPhone
Le Roux Breytenbach 

On 03 Feb 2023, at 1= 4:53, Doug Lomheim rv9flyer13b@gmail.com <flyrotary@lancaironline.net>= wrote:

=EF=BB=BFSo where can we find the proposed =E2=80=9C= specialist in exhaust systems=E2=80=9D that it suggests?  For our appli= cations that would probably be someone on this list!?     :)

Doug   

    


Designing a muffler for a= Mazda rotary engine requires taking into account several factors, including= :

  1. Engin= e specifications: The muffler must be compatible with the size and output of= the engine.
  2. Noise reduction: The muffler should= reduce engine noise to an acceptable level, while also allowing the engine t= o function efficiently.
  • Performance: The muffle= r should not restrict exhaust flow and impact engine performance.
    • =
  • Durability: The muffler must be durable and withstand the hi= gh temperatures and vibration generated by the rotary engine.

    • A muffler design for a M= azda rotary engine could include a straight-through perforated core, surroun= ded by sound-deadening materials such as fiberglass or ceramic wool. The muf= fler should be mounted using flexible connections to reduce vibration and en= sure a secure fit. Additionally, heat shields could be used to protect the m= uffler from high temperatures.

    These are general guidelines and the exact design may vary ba= sed on specific engine and performance requirements. Consulting with a speci= alist in exhaust systems is recommended to ensure a muffler that is optimize= d for your specific engine and application.


    You're welcome= . 
    ;-) 
    =

    = --Apple-Mail-9B1DBB2D-9894-4D17-AE2D-D64E8A17ACE3--