X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTP id 5728384 for flyrotary@lancaironline.net; Sat, 25 Aug 2012 07:52:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=2.0 cv=QrvcLCOd c=1 sm=0 a=g3L/TDsr+eNLfIieSKfGkw==:17 a=AHkS0RJitIMA:10 a=AhpaaZLWvEoA:10 a=05ChyHeVI94A:10 a=vfRXI504SigA:10 a=ayC55rCoAAAA:8 a=arxwEM4EAAAA:8 a=r1ClD_H3AAAA:8 a=igx_FhL2p93TxVZKi-0A:9 a=wPNLvfGTeEIA:10 a=E93lBu2AAAAA:8 a=Wm_BL0spYkwfQyH9FtwA:9 a=_W_S_7VecoQA:10 a=hO30gm18fF0A:10 a=MpuOTR30KwMA:10 a=ITy1QvswKHoA:10 a=mvWFUSSifWkA:10 a=C1REVoR1p7wA:10 a=NWVoK91CQyQA:10 a=g3L/TDsr+eNLfIieSKfGkw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.170.10 Received: from [174.110.170.10] ([174.110.170.10:60368] helo=EdPC) by cdptpa-oedge04.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id FA/74-28917-66CB8305; Sat, 25 Aug 2012 11:52:06 +0000 Message-ID: <0C57B7A734464C1CAE6CC6C3B4364501@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Water Injection: [FlyRotary]Turboquestion. Date: Sat, 25 Aug 2012 07:52:07 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003D_01CD8296.8681EF20" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_003D_01CD8296.8681EF20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Back in 1976 when I build probably one of the first turbocharged Honda = Civics with a 1200cc engine east of the Mississippi - I used water = injection from a windshield wiper bag and it worked fine - once I got it = working. While installing the water injection "system", unbeknownst to me, water = had dribbled out of the water tube injection end down into the intake = manifold. The car was on a stand which had a slight slope to the left. = In any case, after getting everything installed I couldn't wait to test = it out. I got into the car and fire up the engine - there was an = immediate "bump" following by a pining sound coming from the engine. = The pining sound clearly was in sync with the cars rpm. I killed the = engine and got out to investigate. I check the compression on all four cylinders and found the down slope = cylinder to be lower that the rest. I dropped the oil pan to view the = engine and remember thinking how ingenious the Japanese engineers were = to put a curve into the connecting rod to get the best thrust angle. = Then the light bulb came on as I noticed the other three connecting rods = were straight. =20 I had re-confirmed the scientific fact that water as a liquid is = essentially incompressible - water had leaked into the cylinder and when = I fired the engine the piston tried to compress it. The forces sheared = the compressing ring land off the aluminum piston destroying the piston = and had forced the connection rod to curve to such an extend that the = curved part was now slapping on the bottom of the cylinder opening each = time the crankshaft went around. Fortunately I had not tried to drive the car or I almost certainly would = have cause the rod to break and destroyed the engine; Probably not as likely with a rotary engine, but I think I would check = very carefully any water injection design and installation. Ed Edward L. Anderson Anderson Electronic Enterprises LLC 305 Reefton Road Weddington, NC 28104 http://www.andersonee.com http://www.eicommander.com ------=_NextPart_000_003D_01CD8296.8681EF20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Back in  1976 when I build probably one of = the first=20 turbocharged Honda Civics with a 1200cc engine east of the Mississippi - = I used=20 water injection from a windshield wiper bag and it worked fine - once I = got it=20 working.
 
While installing the water injection "system", = unbeknownst=20 to me, water had dribbled out of the water tube injection end down into = the=20 intake manifold.  The car was on a stand which had a slight slope = to the=20 left. 
 
In any case, after getting everything installed = I couldn't=20 wait to test it out.  I got into the car and fire up the engine - = there was=20 an immediate "bump" following by a pining sound coming from the = engine. =20 The pining sound clearly  was in sync with the cars rpm.  I = killed the=20 engine and got out to investigate.
 
I check the compression on all four cylinders = and =20 found the down slope cylinder to be lower that the rest.  I dropped = the oil=20 pan to view the engine and remember thinking how ingenious the Japanese=20 engineers were to put a curve into the connecting rod to get the best = thrust=20 angle.  Then the light bulb came on as I noticed the other three = connecting=20 rods were straight. 
 
I had re-confirmed the scientific fact that = water as a=20 liquid is essentially incompressible - water had leaked into the = cylinder and=20 when I fired the engine the piston tried to compress it.  The = forces=20 sheared the compressing ring land off the aluminum = piston destroying the=20 piston and had forced the connection rod to curve to such an extend = that=20 the curved part was now slapping on the bottom of the cylinder opening = each time=20 the crankshaft went around.
 
Fortunately I had not tried to drive the car or = I almost=20 certainly would have cause the rod to break and destroyed the=20 engine;
Probably not as likely with a rotary engine, but = I think I=20 would check very carefully any water injection design and=20 installation.
 
Ed

 Edward L. Anderson
Anderson = Electronic Enterprises LLC
305 Reefton Road
Weddington, NC = 28104
http://www.andersonee.com
http://www.eicommander.com
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