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NNTP-Posting-Date: Fri, 01 Nov 2002 17:37:28 -0600
From: "Robert Miller"
Subject: Re: How to detect low oil level
Date: Fri, 1 Nov 2002 17:37:31 -0600
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A few points. Since some of my idea may not be very clear.
You would have a cylinder with a sliding metal diaphragm. One
side of the diaphragm is the oil reservoir, the other side is pressurized.
Not much pressure, just enough to keep the system balanced. This would
be an add on or surplus oil reserve. The diaphragm would slide from top to
bottom as the reservoir filled or emptied of oil. A mechanical link could
measure how much oil is in the reservoir.
"Robert Miller" wrote in message
> You could have a bladder in the oil pan. I would not recommend a rubber
> bladder, but a very close fitting metallic bladder. Any leakage pass the
> seal can be drained/ pumped back into the oil pan.
> You would always know within a few oz. how much oil is in the system.
> The only question is the chance of failure small enough to make this
> Robert Miller
> "Michael Painter" wrote in message
> > "Jeroen" wrote in message
> > news:LTBv9.422$I6.email@example.com...
> > > Hi,
> > >
> > > what's a simple but reliable way to detect a low oil level of a car?
> > > Something that's easy to place from the outside, without any
> > of
> > > the pan?
> > >
> > > Jeroen
> > A simple but reliable way is the dip stick.
> > It has no moving parts.
> > Floats and things that move tend to break sooner or later and then
> > get where they tend to do damage.
> > If you must have something else add a pipe to the drain plug run it up
> > side of the engine and put clear plastic in to see the level.
> > Then you have nothing internal to worry about, will know what the level
> > when to change it, have an easier way to do that and can use external
> > cells to monitor. (Or a TV camera)
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