Fundamental parameters of an engine, Part 3/3 What exactly is the thermal efficiency? What relation has it with the specific fuel consumption? Which are the advantages and the respective drawbacks of in-line, V and opposite cylinders engines? Is there an optimal number of cylinders in function of a required power ?
In the third part of this file, we have a look at the compromise designers have to face and we also examine the parameters which influence engine efficiency, balance and smooth running.
Contents :
Page 1 : Thermal efficiency () and specific fuel consumption (SFC),
Page 2 : Specific fuel consumption maps (1/3),
Page 3 : Specific fuel consumption maps (2/3),
Page 4 : Specific fuel consumption maps (3/3),
Page 5 : Compression ratio,
Page 6 : Supercharging (1/2),
Page 7 : Supercharging (2/2),
Page 8 : Number of cylinders,
Page 9 : Number of cylinders and efficiency,
Page 10 : Number of cylinders and balancing (1/3),
Page 11 : Number of cylinders and balancing (2/3),
Page 12 : Number of cylinders and balancing (3/3),
Page 13 : Balancing of the alternative masses (1/2),
Page 14 : Balancing of the alternative masses (2/2),
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) and specific fuel consumption (SFC),
