X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Sender: To: lml Date: Tue, 05 Dec 2006 13:37:19 -0500 Message-ID: X-Original-Return-Path: Received: from smtp103.sbc.mail.mud.yahoo.com ([68.142.198.202] verified) by logan.com (CommuniGate Pro SMTP 5.1.3) with SMTP id 1643234 for lml@lancaironline.net; Tue, 05 Dec 2006 12:38:39 -0500 Received-SPF: none receiver=logan.com; client-ip=68.142.198.202; envelope-from=elippse@sbcglobal.net Received: (qmail 82154 invoked from network); 5 Dec 2006 17:38:15 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-YMail-OSG:Message-ID:From:To:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MIMEOLE; b=fGH565AvZw/i0ECOf1t8KWfcr6IP2a6ITj6et/6HI7XgPHUUQSphmeI9VIzgYrVEDIvmpXv9x1Fz7yMZJ8ZK9asRMM9TgDOMvlcQcdZ+EqTG7FSOgl7V/eL4dHUV7zz8Yjx4TT/Jsa76xAnxGXZ0zKaJgOajN+YNHoXioKFqRcA= ; Received: from unknown (HELO Computerroom) (elippse@sbcglobal.net@75.15.131.93 with login) by smtp103.sbc.mail.mud.yahoo.com with SMTP; 5 Dec 2006 17:38:15 -0000 X-YMail-OSG: WIdjgr4VM1m9pGwaPKP9fZDfHZ9KNnalnOPgPocZGLP03M259t1hD.Oi6BpJdDEf5I5Ab4miYygh8bF62QKOegBiEb2oq5nIRv2lNDrIhW9gRP2wLHcZfA-- X-Original-Message-ID: <004d01c71894$269df120$5d830f4b@Computerroom> From: "Paul Lipps" X-Original-To: "Marv Kaye" Subject: Friction loss X-Original-Date: Tue, 5 Dec 2006 09:38:17 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004A_01C71851.17CCBDE0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 This is a multi-part message in MIME format. ------=_NextPart_000_004A_01C71851.17CCBDE0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Friction or Coulomb* loss is independent of sliding rate. However, the = friction loss in pounds, when multiplied by rate, yields hp. As rpm goes = up, so does the friction hp. Also, as rpm goes up, engine power, at a = given MEP, also goes up proportionatly. It would seem that the friction = hp would maintain a certain percentage of the overall power input, and = I'm not sure how this would cause a change in SFC. Also, I'm not sure of = the effect of increased MEP on the coefficient of friction. Does it go = up with the increased pressure of the rings against the cylinder walls = at higher MEP? Keeping MEP max certainly cuts down on pumping loss! I = seek enlightenment! *Charles Augustin de Coulomb ------=_NextPart_000_004A_01C71851.17CCBDE0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Friction or Coulomb* loss is independent of = sliding rate.=20 However, the friction loss in pounds, when multiplied by rate, = yields hp.=20 As rpm goes up, so does the friction hp. Also, as rpm goes up, engine = power, at=20 a given MEP, also goes up proportionatly. It would seem that the = friction hp=20 would maintain a certain percentage of the overall power input, and I'm = not sure=20 how this would cause a change in SFC. Also, I'm not sure of the effect = of=20 increased MEP on the coefficient of friction. Does it go up with = the=20 increased pressure of the rings against the cylinder walls at higher = MEP?=20 Keeping MEP max certainly cuts down on pumping loss! I seek=20 enlightenment!
 
*Charles Augustin de = Coulomb
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