X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail.iuncapped.co.za ([196.214.93.189] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with ESMTP id 4993970 for flyrotary@lancaironline.net; Wed, 25 May 2011 08:03:43 -0400 Received-SPF: none receiver=logan.com; client-ip=196.214.93.189; envelope-from=charlesd1@telkomsa.net Received: from pc1 (unknown [192.168.9.2]) by mail.iuncapped.co.za (Postfix) with ESMTP id AA3E17D848E for ; Wed, 25 May 2011 13:47:11 +0200 (SAST) From: "Charles Davis" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: New impeller design Date: Wed, 25 May 2011 14:03:00 +0200 Message-ID: <000c01cc1ad3$b2160170$16420450$@net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000D_01CC1AE4.759ED170" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AcwY2BRUATRLl9CBRqGeEOFqsIU3SwB+e4Ww Content-Language: en-za X-IUncapped-MailScanner-Information: Please contact DcData Support (support@dcdata.co.za) X-IUncapped-MailScanner-ID: AA3E17D848E.A46DB X-IUncapped-MailScanner: Found to be clean X-IUncapped-MailScanner-From: charlesd1@telkomsa.net X-Spam-Status: No This is a multi-part message in MIME format. ------=_NextPart_000_000D_01CC1AE4.759ED170 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hi, All =20 Just thinking aloud here, I visited a local foundry yesterday to collect = some feet for a bath-tub which I had made, and the owner was showing me = around his shop =E2=80=A6. One thing which caught my eye was an impeller = he is currently building a mould for =E2=80=93 it is for pumping air = into one of his furnaces, and this got me thinking on the way home = =E2=80=A6. =20 If an impeller were to be cast for this air-induction/super-charging = application, and was tied-in to the e-shaft (key-way or similar) would = it work to have a suitable magnet cast-in to the periphery of the = impeller, so that two coils could be mounted, 180 degrees apart, to = provide =E2=80=98magneto-type=E2=80=99 spark to one set of plugs = =E2=80=93 one coil per rotor at 180* for a 2-rotor, and 120* for a = 3-rotor =E2=80=93 this sounds, to me, so simple that I am surprised = nobody has done it before =E2=80=93 how good would it be to have a = completely battery-independent ignition system for amateur-built = aircraft ? =E2=80=A6 maybe I should shaddup, & return to lurking = =E2=80=A6 =20 Charles =20 =20 ------=_NextPart_000_000D_01CC1AE4.759ED170 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Hi, All

 

Just thinking aloud here, I visited a local foundry yesterday to = collect some feet for a bath-tub which I had made, and the owner was = showing me around his shop =E2=80=A6. One thing which caught my eye was = an impeller he is currently building a mould for =E2=80=93 it is for = pumping air into one of his furnaces, and this got me thinking on the = way home =E2=80=A6.

 

If an impeller were to be cast for this air-induction/super-charging = application, and was tied-in to the e-shaft (key-way or similar) would = it work to have a suitable magnet cast-in to the periphery of the = impeller, so that two coils could be mounted, 180 degrees apart, to = provide =E2=80=98magneto-type=E2=80=99 spark to one set of plugs = =E2=80=93 one coil per rotor at 180* for a 2-rotor, and 120* for a = 3-rotor =E2=80=93 this sounds, to me, so simple that I am surprised = nobody has done it before =E2=80=93 how good would it be to have a = completely battery-independent ignition system for amateur-built = aircraft ? =E2=80=A6 maybe I should shaddup, & return to lurking = =E2=80=A6

 

Charles

 

 

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