PJGD,
Curiosity makes me wonder why a 2-stroke will use less than half of your stated values... Wouldn't it scale down to approximately the effective displacement? (Total mech. disp. minus the portion of the stroke used by the exhaust ports?)
My effective disp. will be 1.38 CI or 22.6 cc.
I...
BillClark,
There are 3 major vibrational modes on a single: Crankshaft & conrod circular vibration, which can be balanced out by crankshaft counterweights; reciprocating piston & conrod little end vibration which requires balance shafts to eliminate, and flywheel/engine rotational vibration...
PJGD,
Wow, thanks for the brochure! I'll definitely see if your info gives some more elightenment/confirmation.
BTW wouldn't I scale (approximately of course) the fuel delivery down to the single lung effective displacement, not just the piston area? (Vol. air per cylinder vs. fuel shot size...
JSteve2,
Thanks for your confirmation, right now our design will go with these confirmed numbers...
Sorry about the pounds per cubic inch thing, all our reference books are old school :)
Again, thanks for forcing me to think :)
Peace
PW
Oh yeah, I almost forgot--I am designing and building the entire engine (including injection pump) completely from scratch, so obtaining said pump is no problem--provided I don't need a gazillionth of a cubic mm of fuel :)
Thanx & Peace,
PW
JSteve2,
Thanks much for your first reply! :)
Just out of curiosity, what #s are you using? I calculated 0.00013 cu. in. per shot at 15:1, with works out to 2.1 cu. mm--so I'm way over by your method. I used the density of diesel fuel of 7.09 lbs. per US gallon (32.58 cu. in. per pound) and...
Mikespeed,
The "compressors" you speak of, when used on an I.C. engine and driven by crankshaft power, are commonly referred to as superchargers. It is perfectly possible to supercharge a conventional two-stroke engine, but you must first solidly inform yourself as to their operating principle...
Greetings all and thanks for reading my very first post!
I am developing a very small single-cylinder Diesel engine, looking for advice & tips...
It is a 1.84CI (30cc) two-stroke single cylinder engine of the opposed-piston type (no cyl. head, two crankshafts each driving one piston in each...