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- From: tgl@slee01.srl.ford.com (Tom Leone)
- Newsgroups: rec.autos.vw,rec.autos.tech,rec.autos
- Subject: Re: Oil Coolant Engines?
- Date: 27 Jan 1993 16:26:53 GMT
- Organization: Ford Motor Company Research Laboratory
- Lines: 24
- Message-ID: <1k6d4dINNf0k@fmsrl7.srl.ford.com>
- References: <1993Jan25.165652.4119@nntp.nta.no>
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-
- Jim Baranski (BARANSKI@veamf1.nusc.navy.mil) wrote:
- : Does anyone know of any research to come up with a combination
- : coolant and lubricant which would take the place of both oil and
- : water... This would probably simplify the engine quite a bit.
-
- Yes, actually it's been done. The Suzuki GSX-R750 and GSX-R1100
- motorcycles are (or were?) oil-cooled. See the article in
- Motorcyclist magazine, February 1986. The main advantage they
- claimed was lighter weight, although it would certainly be
- simpler as well.
-
- Also, Deutz makes diesel engines where the cylinder heads are
- air-cooled and the blocks are oil-cooled (SAE paper 891864).
- There was an SAE paper (870027) about an experimental diesel
- engine which was completely oil-cooled.
-
- Air cooling alone is insufficient for modern engines. The
- distortions due to temperature gradients are unacceptable in a
- high-precision engine. You need some kind of liquid
- convection. Water is ideal in almost every way; oil is less
- ideal for pumping and heat transfer, but could greatly simplify
- the castings and plumbing.
-
- Tom Leone <tgl@slee01.srl.ford.com>
-