X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.123] verified) by logan.com (CommuniGate Pro SMTP 5.2.11) with ESMTP id 3407039 for flyrotary@lancaironline.net; Thu, 01 Jan 2009 14:09:07 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.123; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta01.mail.rr.com with ESMTP id <20090101190830.VMUK7108.cdptpa-omta01.mail.rr.com@computername> for ; Thu, 1 Jan 2009 19:08:30 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: Renesis Port Timing?? Date: Thu, 1 Jan 2009 14:08:39 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0027_01C96C1A.72732CB0" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: AclsQN4v2kb0y2xxSpmdh8dDAbcs0g== X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Message-Id: <20090101190830.VMUK7108.cdptpa-omta01.mail.rr.com@computername> This is a multi-part message in MIME format. ------=_NextPart_000_0027_01C96C1A.72732CB0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Dennis, I realize there is one bit of information I don't have handy on the Renesis. If you have it, that would be a great help. I need to know the opening and closing timing for the Renesis intake ports. That factor is important because as you realize, the total distance required is from the initial opening of one intake port at To to just before closing on the second rotor. We know the intake port on the second rotor will open at To + 60 degs as the rotors are 60 deg different in rotation on the two rotors. But, we also need to know when the intake port closes as the total time for the pulse to travel is roughly To + 60 deg + Closing Deg (- 10 to allow pulse to get there before the port is fully closed). My calculations were for the old 13Bs and I have no idea if the intake port opening is the same for the Renesis, but if different then it would make a difference. So do you happen to have the port timing for the 4 port Renesis? Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html ------=_NextPart_000_0027_01C96C1A.72732CB0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

Dennis, I realize there is one bit of information I = don’t have handy on the Renesis.  If you have it, that would be a great = help.  I need to know the opening and closing timing for the Renesis intake = ports.  That factor is important because as you realize, the total distance required = is from the initial opening of one intake port at To to just before closing on = the second rotor.

 

 We know the intake port on the second rotor = will open at To + 60 degs as the rotors are 60 deg different in rotation on the two = rotors.  But, we also need to know when the intake port closes as the total time for = the pulse to travel is roughly To + 60 deg + Closing Deg (- 10 to allow = pulse to get there before the port is fully closed).  My calculations were = for the old 13Bs and I have no idea if the intake port opening is the same for the = Renesis, but if different then it would make a = difference.

 

So do you happen to have the port timing for the 4 = port Renesis?

 

Ed

Ed Anderson

Rv-6A N494BW Rotary Powered

Matthews, NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.dmack.net/mazda/index.html<= font size=3D2 face=3DArial>

 



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