X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-ma06.mx.aol.com ([64.12.78.142] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5083229 for flyrotary@lancaironline.net; Fri, 05 Aug 2011 14:35:25 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.78.142; envelope-from=Bktrub@aol.com Received: from imo-ma04.mx.aol.com (imo-ma04.mx.aol.com [64.12.78.139]) by imr-ma06.mx.aol.com (8.14.1/8.14.1) with ESMTP id p75IYeDq007679 for ; Fri, 5 Aug 2011 14:34:40 -0400 Received: from Bktrub@aol.com by imo-ma04.mx.aol.com (mail_out_v42.9.) id q.1232.3ec6162 (56027) for ; Fri, 5 Aug 2011 14:34:37 -0400 (EDT) Received: from smtprly-md02.mx.aol.com (smtprly-md02.mx.aol.com [64.12.143.155]) by cia-md08.mx.aol.com (v129.10) with ESMTP id MAILCIAMD081-d41e4e3c37b9372; Fri, 05 Aug 2011 14:34:37 -0400 Received: from webmail-d183 (webmail-d183.sim.aol.com [205.188.162.236]) by smtprly-md02.mx.aol.com (v129.10) with ESMTP id MAILSMTPRLYMD024-d41e4e3c37b9372; Fri, 05 Aug 2011 14:34:33 -0400 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Impellor Rotation Direction Date: Fri, 05 Aug 2011 14:34:33 -0400 X-AOL-IP: 69.84.254.253 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: bktrub@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CE21B574BCE244_1148_A4CEC_webmail-d183.sysops.aol.com" X-Mailer: AOL Webmail 34007-STANDARD Received: from 69.84.254.253 by webmail-d183.sysops.aol.com (205.188.162.236) with HTTP (WebMailUI); Fri, 05 Aug 2011 14:34:33 -0400 Message-Id: <8CE21B574A2B319-1148-3A9DB@webmail-d183.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: Bktrub@aol.com ----------MB_8CE21B574BCE244_1148_A4CEC_webmail-d183.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Here's the concept for the pump impeller- I work as a firefighter and this= is a the same concept as our fire pumps. First of all the water goes from= the center (the eye) of the pump outward. the impeller throws the water= outward, using centrifugal force to force the water into the outer portio= n of the pump (the volute). Since the water is thrown outward, it creates= a suction behind it which pulls in more water to the eye of the pump.=20 Simple and powerful. A typical fire pump impeller looks like a vented dis= c brake rotor and is about 12 inches in diameter and about 2 inches thick= IIRC. it can pump 1000 gallons a minute at 150 psi.=20 Brian Trubee -----Original Message----- From: Jeff Whaley To: Rotary motors in aircraft Sent: Fri, Aug 5, 2011 5:13 am Subject: [FlyRotary] Impellor Rotation Direction Why do I get the feeling these impellors are being turned in the wrong dir= ection? Image 1 is a scan of a test engine =E2=80=A6 from my cockpit the prop turn= s clockwise and so does the e-shaft with an RD1-C - as referenced to this= scanned image. =20 Now look at these water pump impellors =E2=80=A6 if I wanted to move water= I=E2=80=99d cup my hand and scoop it, not use the back of my hand. Has Mazda got this wrong? Or am I missing something? =20 It looks like I=E2=80=99ll have to change the water pump, as the flange ma= y be warped and the thread bosses are definitely burred. =20 Jeff Whaley =20 This message, and the documents attached hereto, is intended only for the= addressee and may contain privileged or confidential information. Any una= uthorized disclosure is strictly prohibited. If you have received this mes= sage in error, please notify us immediately so that we may correct our int= ernal records. Please then delete the original message. Thank you. -- omepage: http://www.flyrotary.com/ rchive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html ----------MB_8CE21B574BCE244_1148_A4CEC_webmail-d183.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
Here's the concept for the pump impeller- I work as a firefighter and= this is a the same concept as our fire pumps. First of all the water goes= from the center (the eye) of the pump outward. the impeller throws the wa= ter outward, using centrifugal force to force the water into the outer por= tion of the pump (the volute). Since the water is thrown outward, it creat= es a suction behind it which pulls in more water to the eye of the pump.=
 
Simple and powerful.  A typical fire pump impeller looks like a= vented disc brake rotor and is about 12 inches in diameter and about 2 in= ches thick IIRC. it can pump 1000 gallons a minute at 150 psi.
 
Brian Trubee



-----Original Message-----
From: Jeff Whaley <jwhaley@datacast.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Fri, Aug 5, 2011 5:13 am
Subject: [FlyRotary] Impellor Rotation Direction

Why do I get the feeling these impellors are being= turned in the wrong direction?
Image 1 is a scan of a test engine =E2=80=A6 from= my cockpit the prop turns clockwise and so does the e-shaft with an RD1-C= -  as referenced to this scanned image.
 
Now look at these water pump impellors =E2=80=A6 if= I wanted to move water I=E2=80=99d cup my hand and scoop it, not use the= back of my hand.
Has Mazda got this wrong? Or am I missing something= ?
 
It looks like I=E2=80=99ll have to change the water= pump, as the flange may be warped and the thread bosses are definitely bu= rred.
 
Jeff Whaley
 

This message, and the documents= attached hereto, is intended only for the addressee and may contain privi= leged or confidential information. Any unauthorized disclosure is strictly= prohibited. If you have received this message in error, please notify us= immediately so that we may correct our internal records. Please then dele= te the original message. Thank you.

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