Return-Path: Received: from access.aic-fl.com ([204.49.76.2] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 755966 for flyrotary@lancaironline.net; Wed, 23 Feb 2005 11:18:57 -0500 Received-SPF: none receiver=logan.com; client-ip=204.49.76.2; envelope-from=unicorn@gdsys.net Received: from b9k4u9 (unverified [204.49.76.184]) by access.aic-fl.com (Rockliffe SMTPRA 4.5.6) with SMTP id for ; Wed, 23 Feb 2005 10:17:57 -0600 Message-ID: <001401c519d4$2dfb4410$b84c31cc@b9k4u9> From: "Richard Sohn" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Motorcycle generators Date: Wed, 23 Feb 2005 10:19:08 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000F_01C51991.1C8C8290" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_000F_01C51991.1C8C8290 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Wednesday, February 23, 2005 7:29 AM Subject: [FlyRotary] Re: Motorcycle generators I propose that the stator be bolted securely to the backside of the PSRU, and the rotor attached to the flex plate with two small screws.=20 The screw just keep the rotor from moving back and forth. The splines actually spin it. The stator will have to have the coils redone with = a fewer number of turns, and possibly a heavier guage wire, but it will only take a few experiments to get the proper voltage output at = 6000RPM. Hi Ernest, This is a nice thought, but I don't think it's going to be quite that = simple with Tracy's drive. There isn't a ton of space between the back = of the drive adapter plate, and the flex plate. There are lots of bolt = heads on the rear (engine side) of the plate that hold the drive in = place as well, which may or may not get in the way, depending on the = diameter of the stator. The dampener plate is on the front side (prop = side) of the flex plate, and would provide a nice mounting point for the = rotor, again depending on diameter of the rotor. The rotor would have = to be bolted, or riveted to the dampener plate securely, since there are = no splines accessible. The center hole in the rotor would have to be = enlarged to clear the hub of the dampener plate as well. =20 Do you know the diameter of this unit, and the thickness? I do think = the idea is the best I've heard, but it might take a custom built unit = to do this. I would bet we could get someone to build one, since = everyone who's purchased one of Tracy's drives could use it, and would = probably want to. =20 Cheers, Rusty (the network guy today) We should not overlook the disadvantage of PM alternators. At higher = operating speed, the not used output will have to be dissipated. This is = the main reason why automotive alternators are regulated by the = exitation system.=20 FWIW. Richard Sohn N-2071U ------=_NextPart_000_000F_01C51991.1C8C8290 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
 
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Wednesday, February 23, = 2005 7:29=20 AM
Subject: [FlyRotary] Re: = Motorcycle=20 generators

I propose that the stator be bolted securely to the = backside=20 of the
PSRU, and the rotor attached to the flex plate with two = small=20 screws. 
The screw just keep the rotor from moving back and=20 forth.  The splines
actually spin it.  The stator will = have to=20 have the coils redone with a
fewer number of turns, and possibly a = heavier=20 guage wire, but it will
only take a few experiments to get the = proper=20 voltage output at 6000RPM.

 
Hi=20 Ernest,
 
This = is a nice=20 thought, but I don't think it's going to be quite that simple with = Tracy's=20 drive.  There isn't a ton of space between the back of the drive = adapter=20 plate, and the flex plate.  There are lots of bolt heads on the = rear=20 (engine side) of the plate that hold the drive in place as well, = which=20 may or may not get in the way, depending on the diameter of the = stator. =20 The dampener plate is on the front side (prop side) of the flex plate, = and=20 would provide a nice mounting point for the rotor, again depending on = diameter=20 of the rotor.  The rotor would have to be bolted, or riveted to = the=20 dampener plate securely, since there are no splines accessible.  = The=20 center hole in the rotor would have to be enlarged to clear the hub of = the=20 dampener plate as well.  
 
Do you = know the=20 diameter of this unit, and the thickness?  I do think the idea is = the=20 best I've heard, but it might take a custom built unit = to do=20 this.  I would bet we could get someone to build one,=20 since everyone who's purchased one of Tracy's drives could use = it, and=20 would probably want to.  
 
Cheers,
Rusty (the network guy = today)
 
We should not overlook the = disadvantage of=20 PM alternators. At higher operating speed, the not used output will = have to be=20 dissipated. This is the main reason why automotive alternators are = regulated=20 by the exitation system.
FWIW.
 
Richard = Sohn
N-2071U
 
 




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