X-Virus-Scanned: clean according to Sophos on Logan.com From: "Bill Bradburry" Received: from vms173017pub.verizon.net ([206.46.173.17] verified) by logan.com (CommuniGate Pro SMTP 6.0.10) with ESMTPS id 7246522 for flyrotary@lancaironline.net; Thu, 30 Oct 2014 23:56:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.17; envelope-from=bbradburry@verizon.net Received: from Desktop ([173.57.170.65]) by vms173017.mailsrvcs.net (Oracle Communications Messaging Server 7.0.5.32.0 64bit (built Jul 16 2014)) with ESMTPA id <0NEA00EIPIXE7Y40@vms173017.mailsrvcs.net> for flyrotary@lancaironline.net; Thu, 30 Oct 2014 22:56:03 -0500 (CDT) X-CMAE-Score: 0 X-CMAE-Analysis: v=2.1 cv=HrPBwPXX c=1 sm=1 tr=0 a=jjhB2sdyIRGi5VbALRhQUw==:117 a=kUPQlYmSbg0A:10 a=o1OHuDzbAAAA:8 a=oR5dmqMzAAAA:8 a=-9mUelKeXuEA:10 a=r77TgQKjGQsHNAKrUKIA:9 a=9iDbn-4jx3cA:10 a=cKsnjEOsciEA:10 a=Ia-xEzejAAAA:8 a=LA0d9LPlAAAA:8 a=8hyEoxyP93y3ZGUEvhkA:9 a=CjuIK1q_8ugA:10 a=DxSpSDlsx7QA:10 a=vl167mp0tSsA:10 a=vGYq5RqgXE8A:10 a=12sw30QSzY0A:10 a=pRek8Gz-2mAA:10 a=SSmOFEACAAAA:8 a=0Ml5zPqgX0FHixVGA2AA:9 a=upYruJotSAhJ9y5Y:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 To: "'Rotary motors in aircraft'" References: In-reply-to: Subject: RE: [FlyRotary] Fw: Rotary Engine & Fuel Valves Date: Thu, 30 Oct 2014 22:56:09 -0500 Message-id: MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0009_01CFF494.B253B080" X-Mailer: Microsoft Office Outlook 11 Thread-index: Ac/0g2/Drxx+4uFYSgm/Pi88tiSSnQAOtiCQ X-MIMEOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_0009_01CFF494.B253B080 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hmmm.Director of Product Development.Hmmmm!?? :>) _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] Sent: Thursday, October 30, 2014 3:52 PM To: Rotary motors in aircraft Subject: [FlyRotary] Fw: Rotary Engine & Fuel Valves I'm forwarding this to the list, since some might find it interesting. On Wednesday, October 29, 2014 10:02 AM, John Papson wrote: Ernest: I sending this direct to you because while I enjoy reading the FLYROTARY mail list , I'm not registered. Why not completely eliminate the dual (supply and return) fuel valve ? Assuming fuel injection: Run one rotor off of one tank, with its own pump and return line, and the other rotor off the second tank with its own pump and return. Or in the case of a 4 cylinder engine, one pair opposed cylinders from one tank and the other pair from the other. If you lose one half, the engine would have to run wide open throttle (WOT), and make a little less than half power. With WOT, the pumping losses from the dead half of the engine will be minimal, like the braking of a diesel or 2-stroke engine. Enough power to at least "extend your glide", and maybe enough to maintain altitude in some cases. regards John C Papson Director of Product Development DigitalGrid Inc 201 Moreland Rd Hauppauge NY 11788 Phone: (631) 271-7092 ex 127 FAX: (631) 271-7097 Email: jpapson@digitalgridinc.com P.S OK to copy to the FLYROTARY list if you deem this worthwhile. ------=_NextPart_000_0009_01CFF494.B253B080 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Hmmm…Director of Product = Development…Hmmmm!??      :>)

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Thursday, October = 30, 2014 3:52 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Fw: = Rotary Engine & Fuel Valves

 

I'm forwarding this to the list, since some might find it = interesting.

 

On Wednesday, October 29, 2014 10:02 AM, John Papson <jpapson@digitalgridinc.com> wrote:

=

 

Ernest:<= /font>

=

 

=

I sending this direct to you because while I enjoy reading the FLYROTARY = mail list , I’m not registered.

=

 

=

Why not completely eliminate the dual (supply and return) fuel valve = ?

=

 

=

Assuming fuel injection:

=

 

=

Run one rotor off of one tank, with its own pump and return line, and the = other rotor off the second tank with its own pump and = return.

=

Or in the case of a 4 cylinder engine, one pair opposed cylinders from one = tank and the other pair from the other.

=

 

=

If you lose one half, the engine would have to run wide open throttle = (WOT), and make a little less than half power.

=

With WOT, the pumping losses from the dead half of the engine will be = minimal, like the braking of a diesel or 2-stroke engine.

=

 

=

Enough power to at least “extend your glide”, and maybe enough to = maintain altitude in some cases.

=

 

=

regards<= /font>

=

 

=

John C Papson

Director of Product Development

=

DigitalGri= d Inc

201 Moreland = Rd

=

Hauppauge NY

=

11788

=

Phone: (631) 271-7092 ex 127

=

FAX: (631) 271-7097

=

 =

=

P.S    OK to copy to the FLYROTARY list if you deem this = worthwhile.

=

 

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