In article ,
_ wrote:

[...]


The Detroit Diesel is a two stroke, diesel. The piston goes down on
the power stroke and comes up on the compression stroke. Without the
mechanical driven "blower" which simply blows air in through the
cylinder ports and through the exhaust ports at the beginning of the
compression stroke there would be no way to get a charge of air into
the engine.

If you wanted to increase the pressure and volume of this air flow you
could add a exhaust driven compressor before the "blower", But you
must have the "blower" for the engine to run.


Bruce in Bangkok
(brucepaigeATgmailDOTcom)

Neither being a two-stroke nor using diesel oil (nor indeed the
combination) requires a blower/turbo for such an engine to operate. It is
true that engines can be designed so that, were the blower/turbo with which
they are normally equipped to be removed they would not run, that would be
due to other design decisions, not to the choice of fuel, method of
ignition, and/or two/four-stroke operation.

Being a two-stroke, and a Detroit, it requires a blower to operate.
Come to think of it, I've never heard of any engines that are two
stroke and do not use forced induction of one form or another. Even
little chain saws use the crankcase volume as a blower.
Seems as if those two eliminated strokes--intake and exhaust--are
taken up by the blower.
How would you build an 2-stroke engine without forced induction?

--
B.B. --I am not a goat! thegoat4 at airmail dot net