I belive they are the same;power absorption,efficiency over various speed
ranges,and reliability.

Pre and post ingition oiling and lighter weight are additional advantages.

----- Original Message -----
From: "Jim Sower" <canarder@frontiernet.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, May 08, 2004 9:46 AM
Subject: [FlyRotary] Re: Electric Oil Pump?


> There is an important rationale for EWP, involving power absorption,
efficiency
> over various speed ranges, reliability, etc. that make EWP superior in so
many
> ways to the system it was designed to replace.  Oil pumps are so bullet
proof,
> simple and reliable that I can't come up with a similar argument for an
EOP.  I
> am looking for a way in which EOP would constitute an improvement in
performance
> and/or reliability over the current system and coming up empty.
> Help me out here ... what would be the advantage? ... Jim S.
>
> Eric Ruttan wrote:
>
> > Having read of the demonstrated the effectivness of an electric water
pump
> > (lighter weight even after a redundant instalation, less power consumed)
in
> > our applications I have a question.
> >
> > I can find no discussion or anyone offering a simular product for oil
pumps.
> >
> > It would seem there is a direct correlation of advantage between the
> > Electric Water Pump (EWP) and an Electric Oil Pump EOP?
> >
> > Have I missed an offering of such a product or did i miss a pitfall?
> >
> > To clarify I do not mean "pre oilers".  I mean a full time EOP.
> >
> > >>  Homepage:  http://www.flyrotary.com/
> > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>
> --
> Jim Sower ... Destiny's Plaything
> Crossville, TN; Chapter 5
> Long-EZ N83RT, Velocity N4095T
>
>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html