Message-ID: <002601c454b2$9efae090$0100a8c0@MadHouse.Home>
From: "Bryan" <bhcishere@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-166311@logan.com>
Subject: Re: [FlyRotary] Re: second belt on alternator
Date: Thu, 17 Jun 2004 14:32:36 -0700
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Send it to the group, Please.

----- Original Message ----- 
From: "Mark Steitle" <msteitle@mail.utexas.edu>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, June 17, 2004 9:07 AM
Subject: [FlyRotary] Re: second belt on alternator


> Bill,
> I'll take a picture of my alternator/water pump setup tonight and send to
> you tomorrow.  If there is any interest, I could send it to the Fly Rotary
> group also.
>
> Mark S.
>
>
> At 08:46 AM 6/17/2004 -0700, you wrote:
> >I would very much like to see a picture.
> >
> >My engine has an e-shaft drive pulley with room for two V-belts, as does
> >my 13-B water pump. My cowl will not allow installation of alternator on
> >top of engine, so it has to be on the plug side.  I could run two belts
> >(identical) from water pump and alternator (need 2-groove alternator
> >pulley), but if one were to break, and cause the other to break, I would
> >lose all cooling (water pump).
> >
> >I considered a second alternator, so one belt drives each alternator,
> >located in different locations, with the thought (hope) that loss of one
> >belt would be less likely to lose the other. Most planes flying 60 amp
> >alternators or less have only one belt.
> >
> >A second thought was if I cannot fit in a second alternator, is to have
> >the second belt just drive the water pump, with an idler pulley, then if
> >alternator belt departs, the pump still works, and I can start looking
for
> >a place to land using battery power.
> >
> >With all electric ignition, and fuel pumps, and EFIS, I need to address
> >redundancy.
> >Bill Schertz
> >KIS Cruiser # 4045
> >----- Original Message -----
> >From: Mark Steitle
> >Sent: 6/17/2004 5:55:27 AM
> >To: flyrotary@lancaironline.net
> >Subject: [FlyRotary] Re: second belt on alternator
> >
> > > Bill,
> > > My 20B came setup for multiple belts.  It has the multi-v type
pulleys.  I
> > > recently discovered that the 20B w/p pulley won't fit over a 13B w/p.
I
> > > could take a picture of my dual alternator setup, if that would help.
> > >
> > > Mark S.
> > >
> > >   At 06:25 AM 6/16/2004 -0500, you wrote:
> > > >I have been looking at how a redundant belt that would continue to
> > drive the
> > > >water pump could be installed, but have not found a viable routing.
> > > >Bill Schertz
> > > >KIS Cruiser # 4045
> > > >----- Original Message -----
> > > >From: "Wynn, Mike" <mike.wynn@spectra-physics.com>
> > > >To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> > > >Sent: Wednesday, June 16, 2004 12:43 AM
> > > >Subject: [FlyRotary] flyrotary Web Archive
> > > >
> > > >
> > > > > I hadn't thought of the advantages of a second independent belt to
> > act as
> > > >a
> > > > > back up for the water pump.  Was actually thinking of an
> > thermostatically
> > > > > switched EWP as backup and trying to do something at the other end
> > of the
> > > > > motor.  Any option to use the flywheel teeth to drive something or
> > is that
> > > >a
> > > > > silly one?
> > > > > Cheers
> > > > > Mike
> > > > >
> > > > > >>  Homepage:  http://www.flyrotary.com/
> > > > > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> > > >
> > > >
> > > > >>  Homepage:  http://www.flyrotary.com/
> > > > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> > >
> > >
> > > >>  Homepage:  http://www.flyrotary.com/
> > > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> >
> >
> > >>  Homepage:  http://www.flyrotary.com/
> > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html


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