From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Renesis oil pressure
Date: Thu, 7 Nov 2024 16:02:28 +0800
References: <list-3681769@lancaironline.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-3681769@lancaironline.net>
Message-Id: <E3964BBB-7AEE-45A1-89CC-E60F3B27A76C@gmail.com>


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Hi Charlie

Ah, I shouldn=E2=80=99t have written =E2=80=98engine' as the oil comes =
from and returns to the engine.
The cooler is downstream from the pump and upstream from the bearings =
eccentric.

Steve


> On 7 Nov 2024, at 4:23=E2=80=AFam, Charlie England =
ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:
>=20
>=20
>=20
>=20
>>=20
>> I=E2=80=99m not expecting a flow reduction with my setup of large =
hoses and cooler down stream of the engine but I agree I need to test =
it.
>> Ive got to work out how to =E2=80=99T' into the front cover without =
spending $$$.
>>=20
>> Thanks again Andrew.
>>=20
>> Steve
>>=20
> Sorry for the thread drift, but, 'cooler downstream of the engine'?
> So, your oil cooler is plumbed *before* the oil pump? I thought =
conventional wisdom on cooling is to plumb the cooler *after* the pump, =
because pressurizing adds heat which needs to be removed, plus the extra =
heat (delta-t of air<heat exchanger) improves cooler efficiency. What am =
I missing (or getting wrong)?
>=20
> Charlie
>=20
>  =
<https://www.avast.com/sig-email?utm_medium=3Demail&utm_source=3Dlink&utm_=
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"overflow-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;">Hi =
Charlie<div><br></div><div>Ah, I shouldn=E2=80=99t have written =
=E2=80=98engine' as the oil comes from and returns to the =
engine.</div><div>The cooler is downstream from the pump and upstream =
from the bearings =
eccentric.</div><div><br></div><div>Steve</div><div><br></div><div><div><b=
r><blockquote type=3D"cite"><div>On 7 Nov 2024, at 4:23=E2=80=AFam, =
Charlie England ceengland7@gmail.com &lt;flyrotary@lancaironline.net&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div><div =
dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" =
style=3D"font-size:small"><br></div></div><br><div =
class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr"><br></div><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div><div><br></div><div>I=E2=80=99m =
not expecting a flow reduction with my setup of large hoses and cooler =
down stream of the engine but I agree I need to test it.</div><div>Ive =
got to work out how to =E2=80=99T' into the front cover without spending =
$$$.</div><div><br></div><div>Thanks again =
Andrew.</div><div><br></div><div>Steve</div><div><br></div></div></blockqu=
ote><div class=3D"gmail_default" style=3D"font-size:small">Sorry for the =
thread drift, but, 'cooler downstream of the engine'?</div><div =
class=3D"gmail_default" style=3D"font-size:small">So, your oil cooler is =
plumbed *before* the oil pump? I thought conventional wisdom on cooling =
is to plumb the cooler *after* the pump, because pressurizing adds heat =
which needs to be removed, plus the extra heat (delta-t of air&lt;heat =
exchanger) improves cooler efficiency. What am I missing (or getting =
wrong)?</div><div class=3D"gmail_default" =
style=3D"font-size:small"><br></div><div class=3D"gmail_default" =
style=3D"font-size:small">Charlie</div></div></div><div =
id=3D"DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br><table =
style=3D"border-top:1px solid #d3d4de"><tbody><tr><td =
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target=3D"_blank"><img =
src=3D"https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-ro=
und-orange-animated-no-repeat-v1.gif" alt=3D"" width=3D"46" height=3D"29" =
style=3D"width: 46px; height: 29px;"></a></td><td =
style=3D"width:470px;padding-top:12px;color:#41424e;font-size:13px;font-fa=
mily:Arial,Helvetica,sans-serif;line-height:18px">Virus-free.<a =
href=3D"https://www.avast.com/sig-email?utm_medium=3Demail&amp;utm_source=3D=
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height=3D"1"></a></div>
</div></blockquote></div><br></div></body></html>=

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