X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-gw0-f52.google.com ([74.125.83.52] verified) by logan.com (CommuniGate Pro SMTP 5.3.7) with ESMTP id 4341147 for flyrotary@lancaironline.net; Wed, 09 Jun 2010 03:06:06 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.83.52; envelope-from=bartrim@gmail.com Received: by gwj23 with SMTP id 23so1557680gwj.25 for ; Wed, 09 Jun 2010 00:05:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:received :in-reply-to:references:date:message-id:subject:from:to:content-type; bh=V5puOPowDuY/+NNvvRjkgOV+I6pMtvA6UTm29qStST0=; b=q3iOk4AePdoCzkXZTr/0zEi3K8xTd7LF4Goy8sISHWZ55Uf/DjDCbOqsWQFho5y5mu yH04q4X8/HxZ/1+FBJcH1G20EhOpqMcmTTiePj1yOFD83/YnLAEDPxOy0LZ4s0tIP5f3 USmvtyAHcirQCWWgb58J37Yv3uZDthQ3AiyWg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=PC4xJLX0tSuFuG1MC7nxBj6OkF8YD2sUwUHPAjQhHOwyh9HiWXqEBAyHCuo47NbDgG Q3imUZ3AZY6zzZ9wyStbnYzKpK2sUXzhh1/Smk9dryL2AyT7tuD+jjsy7gmu7f2d8Vxm pM5oMCni2Uwt+lMzDIDhEfn7z9JY16/4rOOco= MIME-Version: 1.0 Received: by 10.229.99.85 with SMTP id t21mr4112291qcn.260.1276067127391; Wed, 09 Jun 2010 00:05:27 -0700 (PDT) Received: by 10.220.181.200 with HTTP; Wed, 9 Jun 2010 00:05:26 -0700 (PDT) Received: by 10.220.181.200 with HTTP; Wed, 9 Jun 2010 00:05:26 -0700 (PDT) In-Reply-To: References: Date: Wed, 9 Jun 2010 00:05:26 -0700 Message-ID: Subject: Re: [FlyRotary] Re: high/low pressure pumps question From: Todd Bartrim To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0016363b7fe2d6964e0488938792 --0016363b7fe2d6964e0488938792 Content-Type: text/plain; charset=ISO-8859-1 Hi Steve; Well given your previous occupation, I'd guess you're as qualified as we can hope for to make that determination. This is worth considering in a return-less system. Todd (Gotta keep the replies short when using a phone keyboard) On 2010-06-08 11:55 PM, "Steven W. Boese" wrote: Todd, Since the bubbles disappear and the circulating liquid becomes clear after prolonged circulation of a small volume of gasoline , I think the bubbles were not gasoline vapor since the system is still circulating gasoline. When I worked as a chemist, we would remove air from solvents used in high pressure liquid chromatography by passing the solvent through a vacuum filtration apparatus which also entalis a high to low pressure transition. This removed the dissolved air more quickly and thoroughly than sparging the solvent with helium. Steve Boese RV6A, 1986 13B NA, RD1A, EC2 ------------------------------ *From:* Rotary motors in aircraft [flyrotary@lancaironline.net] On Behalf Of Todd Bartrim [bartrim@gmail.com] *Sent:* Tuesday, June 08, 2010 11:38 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: high/low pressure pumps question Steve; I believe the bubbles you are seeing in the line is very likely the evaporative emissions... ... --0016363b7fe2d6964e0488938792 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

Hi Steve;
Well given your previous occupation, I'd guess you're as qualified= as we can hope for to make that determination. This is worth considering i= n a return-less system.
Todd
(Gotta keep the replies short when using a phone keyboard)

On 2010-06-08 11:55 PM, "Steven W. Boese&= quot; <SBoese@uwyo.edu> wrote:=

=A0
Todd,
=A0
Since the bubbles disappear and the c= irculating liquid becomes clear after=A0prolonged circulation of a small vo= lume of gasoline , I think the bubbles were not gasoline vapor since the sy= stem is still circulating gasoline.=A0 When I worked as a chemist, we would remove air from solvents used in high pres= sure liquid chromatography by passing the solvent through a vacuum filtrati= on apparatus which also entalis a high to low pressure transition.=A0 This = removed the dissolved air more quickly and thoroughly than sparging the solvent with helium.=A0


=A0
Steve Boese
RV6A, 1986 13B NA, RD1A, EC= 2
=A0


From: Rotary moto= rs in aircraft [flyrotary@lancaironline.net] On Behalf Of Todd Bartrim [bartrim@gmail.com]
Sent: Tuesday, June 08, 2010 11:38 PM


= To: Rotary motors in aircraft
Subject: [FlyRotary] Re: high/low pressure= pumps question


Steve;
=A0=A0=A0 I believe the bubbles = you are seeing in the line is very likely the evaporative emissions...

...

--0016363b7fe2d6964e0488938792--