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Return-Path: <13brv3@bellsouth.net> Received: from imf19aec.mail.bellsouth.net ([205.152.59.67] verified) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2637994 for flyrotary@lancaironline.net; Wed, 15 Oct 2003 13:11:41 -0400 Received: from rad ([68.212.14.231]) by imf19aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20031015171141.SOFT1828.imf19aec.mail.bellsouth.net@rad> for ; Wed, 15 Oct 2003 13:11:41 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EWP - series pumps and wacky ideas Date: Wed, 15 Oct 2003 12:11:41 -0500 Message-ID: <000501c3933f$66f0b6a0$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C39315.7E1AAEA0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C39315.7E1AAEA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Just an unsubstantiated brain fart, but it seems to me that all those are really secondary measurments. The really important point whether the impeller is spinning properly. Would it be possible to install a tiny magnet in the impeller and detect it's passing with a sensor? Could the same data be used to determine the pump's speed, indicating pump health and flow rate? I still think a flow meter is the only way to guarantee that coolant is flowing. Todd's got the right idea. Rusty (shouldn't I be working) ------=_NextPart_000_0006_01C39315.7E1AAEA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Just an unsubstantiated brain fart, but it seems to me = that all=20 those are really secondary measurments. The really important point = whether=20 the impeller is spinning properly. Would it be possible to install = a tiny=20 magnet in the impeller and detect it's passing with a sensor? = Could the=20 same data be used to determine the pump's speed, indicating pump health = and flow=20 rate?

I still = think a flow=20 meter is the only way to guarantee that coolant is = flowing. Todd's=20 got the right idea.

Rusty = (shouldn't I be=20 working)

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