X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [201.225.225.169] (HELO cwpanama.net) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 983761 for flyrotary@lancaironline.net; Mon, 13 Feb 2006 19:01:18 -0500 Received-SPF: none receiver=logan.com; client-ip=201.225.225.169; envelope-from=rijakits@cwpanama.net Received: from [201.224.93.110] (HELO usuarioq3efog0) by frontend3.cwpanama.net (CommuniGate Pro SMTP 4.2.10) with SMTP id 58477891 for flyrotary@lancaironline.net; Mon, 13 Feb 2006 19:02:36 -0500 Message-ID: <008201c630fa$0ec24dd0$6e5de0c9@usuarioq3efog0> From: "rijakits" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Diesel Operation Date: Mon, 13 Feb 2006 19:03:16 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 ----- Original Message ----- From: "Bob White" To: "Rotary motors in aircraft" Sent: Monday, February 13, 2006 6:53 PM Subject: [FlyRotary] Re: Diesel Operation > On Mon, 13 Feb 2006 18:34:37 -0500 > Ernest Christley wrote: > > > Bob White wrote: > > > > >Hi Ernest, > > > > > >I have high compression rotors (9.7:1) so maybe all I need is the turbo > > >and propane. ;-) Long ago I was thinking about adding a supercharger > > >after I got the NA setup working (normalization only). After the > > >length of time this has taken, I don't think it will ever happen. > > > > > >Bob W. (leaky tank sealed - leak check tomorrow) > > > > > > > > > > > Working from a fading memory here, but I believe diesels run closer to 27:1. > > Ford tried to convert a gas engine to diesel operation in the '80s by > > just driving up the compression. By all accounts, it sucked. It ran, > > just not for long. The high compression basically rip apart the lighter > > gas engine parts. > > I don't think the rotary would suffer those issues, and it might even > > solve the problem of fuel not burning in the chamber corners, but I'm > > probably wrong. > > > > I don't think the rotary can be made to run in diesel mode. > Compression ratios just can't get into that range. Mistral is using > diesel fuel with spark ignition. > > Bob W. > I think John Deere tried ( or was it Rolls Royce...??): Dual Rotor setup, the first Rotor worked as a compressor to precompress the air - efficiency didn't work out.... TJ