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[58.7.148.1]) by mx.google.com with ESMTPS id cg9sm42169034igb.17.2012.04.09.20.07.45 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 09 Apr 2012 20:07:48 -0700 (PDT) From: Steve Izett Mime-Version: 1.0 (Apple Message framework v1257) Content-Type: multipart/alternative; boundary="Apple-Mail=_802777C0-543C-43CB-A71C-EEBD9A3BBC9C" Subject: Re: [FlyRotary] Re: OMP Plumbing Date: Tue, 10 Apr 2012 11:07:40 +0800 In-Reply-To: To: "Rotary motors in aircraft" References: Message-Id: <60B910FF-5965-4A4C-95E1-DF77D6864163@gmail.com> X-Mailer: Apple Mail (2.1257) --Apple-Mail=_802777C0-543C-43CB-A71C-EEBD9A3BBC9C Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 Mark Some of those wires are probably driving a Stepper Motor. If you are unaware that is a motor that drives CW or CCW in steps driven = by a micro processor. Same as the renesis 4 port OMP I have but do not use. Steve Izett=20 On 10/04/2012, at 10:42 AM, Mark Steitle wrote: > Kelly, =20 >=20 > Yes, I have the 20B OMP. I took it apart tonight and tried to figure = it out. It has two solenoids. Best I can determine, they take the = place of the mixture adjustment rod assy. on the 13b OMP. In other = words, they move the barrel valve in and out, changing the oil flow. = With this figured out, I could probably make it work for my purposes by = locking the solenoid plunger in the fully open position. Or, I could = try to figure out what the solenoid's nine wires do and then design a = circuit to control it based on MAP, RPM, etc. Since I'm not an EE or a = programmer, that isn't likely, so I think I will just lock it open and = use a little more oil. >=20 > BTW, the 20b OMP has 4 outlets, but one was plugged at the factory. = So, it only uses 3 outlets. I think in the long run, it will be easier = to use the 20b pump, and it should be a better match than the 13b OMP. = I may try a flow test if I can figure out how fast to spin it to = simulate 7000 rpm. At least I could compare the flow of the 13b to the = 20b. =20 >=20 > Tracy - can I exchange the 13b OMP adapter (just arrived today) for a = 20b OMP adapter?=20 >=20 > Mark=20 >=20 > On Sun, Apr 8, 2012 at 10:34 PM, Kelly Troyer = wrote: > Mark, Steve, > Have to admit I had not thought of that little problem for the = 20B.............Mark did your 20B > come with a OMP ??.............I have a Cosmo 13B but have not paid = any attention to the OMP > so do not know as I type if it is like the 89-91 pump or like the = 93-95 13BREW pump or if the > 20B pump has a completely different mount pad than the = 13B..............Mark is your current > front cover a 20B ?................. > =20 > Kelly >=20 > On Sun, Apr 8, 2012 at 8:29 PM, Steven W. Boese = wrote: > Mark, >=20 > =20 > Since the OMP 's I've seen are set up with 4 oil lines and intended = for a two rotor engine, how do you intend to adapt it to the three rotor = engine in terms of amount of oil metered and how it is distributed? >=20 > =20 > Steve >=20 > =20 >=20 > From: Mark Steitle >=20 >>> Sent: Saturday, April 07, 2012 8:10 PM >>> To: Rotary motors in aircraft >>> Subject: [FlyRotary] OMP Plumbing >>> =20 >>> Is anyone running an oil metering pump (OMP) that can help me figure = out how the lines should be connected. I'm planning on using the Mazda = banjo fittings to hook up to the OMP, but what do I do with the check = valves. Do you connect the check valves to a vacuum source or just = block them off? Will the system work properly if I plug the check = valves? I plan on locking the lever in the full open position. Will = this work for a/c use? I'll be using Richard Sohn's adapter with a 1 = gallon reservoir filled with 2-stroke oil. =20 >>> =20 >>> Mark S. >>> =20 >>>=20 >>>=20 >>=20 >> =20 >=20 >=20 >=20 >=20 > --=20 > Kelly Troyer > Dyke Delta_"Eventually" > 13B_RD1C_EC2_EM2 >=20 --Apple-Mail=_802777C0-543C-43CB-A71C-EEBD9A3BBC9C Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=iso-8859-1
Kelly,  

Yes, I have the 20B OMP. =  I took it apart tonight and tried to figure it out.  It has = two solenoids.  Best I can determine, they take the place of the = mixture adjustment rod assy. on the 13b OMP.  In other words, they = move the barrel valve in and out, changing the oil flow.  With this = figured out, I could probably make it work for my purposes by locking = the solenoid plunger in the fully open position.  Or, I could try = to figure out what the solenoid's nine wires do and then design a = circuit to control it based on MAP, RPM, etc.  Since I'm not an EE = or a programmer, that isn't likely, so I think I will just lock it open = and use a little more oil.

BTW, the 20b OMP has 4 outlets, but one was plugged = at the factory.  So, it only uses 3 outlets.  I think in the = long run, it will be easier to use the 20b pump, and it should be a = better match than the 13b OMP.  I may try a flow test if I can = figure out how fast to spin it to simulate 7000 rpm.  At least I = could compare the flow of the 13b to the 20b.   

Tracy - can I exchange the 13b OMP adapter (just = arrived today) for a 20b OMP = adapter? 

Mark 

On Sun, Apr 8, 2012 at 10:34 PM, Kelly Troyer = <keltro@gmail.com> = wrote:
    Mark, Steve,
        Have to admit I had not = thought of that little problem for the 20B.............Mark did your = 20B
come with a OMP ??.............I have a Cosmo 13B but have not paid = any attention to the OMP
so do not know as I type if it is like the 89-91 pump or like the = 93-95 13BREW pump or if the
20B pump has a completely different mount pad than the = 13B..............Mark is your current
front cover a 20B ?.................
 
Kelly

On Sun, Apr 8, 2012 at 8:29 PM, Steven W. = Boese <SBoese@uwyo.edu> wrote:

Mark,

 

Since the = OMP 's I've seen are set up with 4 oil lines and intended = for a two rotor engine, how do you intend to adapt it to the three rotor = engine in terms of amount of oil metered and how it is = distributed?

 

Steve

 

From: Mark Steitle

Sent: Saturday, April 07, 2012 8:10 PM
Subject: [FlyRotary] OMP = Plumbing
 
Is anyone running an oil = metering pump (OMP) that can help me figure out how the lines should be = connected.  I'm planning on using the Mazda banjo fittings to hook = up to the OMP, but what do I do with the check valves.  Do you = connect the check valves to a vacuum source or just block them = off?  Will the system work properly if I plug the check = valves?  I plan on locking the lever in the full open = position.  Will this work for a/c use?  I'll be using Richard = Sohn's adapter with a 1 gallon reservoir filled with 2-stroke = oil.   =20
 
Mark = S.
=
 

=
 
<= span class=3D"HOEnZb"> =



--
Kelly Troyer
Dyke = Delta_"Eventually"
13B_RD1C_EC2_EM2


= --Apple-Mail=_802777C0-543C-43CB-A71C-EEBD9A3BBC9C--