X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m23.mx.aol.com ([64.12.137.4] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1001346 for flyrotary@lancaironline.net; Tue, 14 Jun 2005 02:01:59 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.4; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m23.mx.aol.com (mail_out_v38_r1.7.) id q.b9.59e4428e (48576) for ; Tue, 14 Jun 2005 02:01:10 -0400 (EDT) From: WRJJRS@aol.com Message-ID: Date: Tue, 14 Jun 2005 02:01:10 EDT Subject: Re: [FlyRotary] Re: Racemate Alternator To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1118728870" X-Mailer: 9.0 SE for Windows sub 5012 -------------------------------1118728870 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 6/13/2005 4:41:18 PM Pacific Standard Time, daval@iprimus.com.au writes: Hi Bill, my take on this is that the present ratio is not suitable for constant engine rpm at 6000, I think we should be looking at slowing the W/P/ alternator down to about 4000rpm. The Auto Electrics people say that car alternators are rated to give their max power at 3-4000 rpm. As for the W/P, it is designed to cool at the minimum road speed with all loads drawing on the engine, ie, air con, lights etc. so 3-4000 is fine for the W/P I am not sure what you mean by a 'cup on the flywheel'. BR, Dave McC Dave, I am refering to the fact that the magnets (permanet) of the Raccemate alternator are intended to be "cupped" inside the WP pulley. The stator mounts around the shaft onto the pump housing. The housing is also a custom item. Several people have suggested running the alternator behind the flywheel. I waas hoping to be able to run it around the e-shaft. The Racemate alternator is designed for, well, Racing so it should handle the higher RPMs. We can always ask the design RPM for full 32 amp output. Multiple units could be used on the "amp suckers" out there. Bill Jepson -------------------------------1118728870 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 6/13/2005 4:41:18 PM Pacific Standard Time,=20 daval@iprimus.com.au writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>Hi=20 Bill,
my take on this is that the present ratio is not suitable for=20 constant
engine rpm at 6000, I think we should be looking at slowing t= he=20 W/P/
alternator down to about 4000rpm. The Auto Electrics people say t= hat=20
car alternators are rated to give their max power at 3-4000 rpm. As fo= r=20
the W/P, it is designed to cool at the minimum road speed with all=20
loads drawing on the engine,  ie,  air con, lights etc. so=20 3-4000 is
fine for the W/P
I am not sure what you mean by a 'cup on= the=20 flywheel'. BR, Dave McC
Dave, I am refering to the fact that the magnets (permanet) of the=20 Raccemate alternator are intended to be "cupped" inside the WP pulley. The=20 stator mounts around the shaft onto the pump housing. The housing is also a=20 custom item. Several people have suggested running the alternator behind the= =20 flywheel. I waas hoping to be able to run it around the e-shaft. The Racemat= e=20 alternator is designed for, well, Racing so it should handle the higher RPMs= . We=20 can always ask the design RPM for full 32 amp output. Multiple units could b= e=20 used on the "amp suckers" out there.
Bill Jepson
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