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- Path: sparky!uunet!think.com!enterpoop.mit.edu!cambridge-news.cygnus.com!airs!comton.airs.com!andrew
- From: andrew@airs.com (Andrew Evans)
- Newsgroups: rec.autos.tech
- Subject: Adiabatic engines (was Re: Soviet Air-cooled diesel engines)
- Message-ID: <6089@comton.airs.com>
- Date: 8 Jan 93 22:24:04 GMT
- References: <4336.88.uupcb@chaos.lrk.ar.us>
- Organization: Infinity Development, Waltham, MA
- Lines: 22
-
- dave.williams@chaos.lrk.ar.us (Dave Williams) writes:
-
- > The US Army Tank Command has done a wad of research on what they call
- > an "adiabatic" (I know it's not the correct word, but it's what THEY
- > call it) Diesel that runs without any external cooling at all.
-
- Quite a few years ago there was a feature in Popular Science about a
- gasoline adiabatic engine that Smokey Yunick invented. It was a
- two-cylinder/four stroke engine, carbureted, with a turbocharger. The
- exhaust heat was used to pre-heat the intake air in two stages. The
- turbocharger was used not so much for high boost, but to stuff the
- expanding air into the combustion chamber, since it tended to want to
- come back out the carb when it got hot. The performance figures were
- outrageous: something like 150 bhp for an 80 ci two-cylinder engine.
- PS said all the auto companies were driving the hell out of it, trying
- to make it ping, but it wouldn't. The combustion chambers had some
- high-swirl intake ports and pistons, I think.
-
- Anybody know what ever happened to this?
-
- --
- Andrew Evans (andrew@airs.com) - Infinity Development Systems - Waltham, MA
-