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Engine Specific Info and Questions => IDI Engine => Topic started by: pernalonga on March 14, 2007, 03:43:16 pm

Title: Pumping Losses ?
Post by: pernalonga on March 14, 2007, 03:43:16 pm

Hi there,

Is it correct to say : an engine (IDI) that breathes better, takes more energy (pumping loss) in compressing that additional mass of air ??

Regards
Pernalonga

Title: Pumping Losses ?
Post by: jtanguay on March 14, 2007, 03:52:20 pm

incorrect.

just means that you can increase the power which takes more energy.  making the engine breathe better could potentially decrease smoke.

Title: Pumping Losses ?
Post by: Turbinepowered on March 14, 2007, 11:25:51 pm

Quote from: "libbybapa"

That same air is decompressed as the piston goes downward and exerts the same force helping as it did hindering.

Minus frictional and heat losses, of course.  :wink: