I don't have many EIM for that period but on a quick search I came across a construction series for a James Watt Lap Engine . My one copy is for Dec1986 and it's part ix so must be articles before and after that date .
(1) A construction series with excellent drawings for a working model Newcomen engine was published about 30 years ago in one of the model engineering magazines . Probably Engineering in Miniature .
(2) Boulton & Watt
(3) More
(4) Crofton Engines
There is no advantage in using steam with a pressure higher than a few hundred psi and with moderate superheat temperature in a piston engine intended for a practical car .
The ideal reciprocating engine for a high performance steam car would be a variable configuration engine with several identical cylinders .
Take a simple example of an engine with three identical cylinders . This can be run as all cylinders high pressure or one cylinder high pressure exhausting...
I posted some information about Champion drilling machines on the Model Engineer website a few years ago .
http://www.model-engineer.co.uk/forums/postings.asp?th=67785
Gear drive the input shaft so that the actual 72 tooth indexing wheel is made to work like a 60 tooth wheel . You can then use 29 hole plate and simple indexing .
Required ratio is 72/60 so 36/30 may be easiest practical combination .
Hi ,
Just a few thoughts :
(1) A true diesel is unlikely to function at all with a compression ratio less
than about 9:1 .
(2) A true diesel engine which is hot requires a lower compression ratio to
keep going than a cold engine does to start up . For this reason
various methods have been...