Posted by Glen D Anderson on January 06, 2009 at 07:49:27 from (69.36.98.178):
In Reply to: Engine Question. posted by Guido on January 06, 2009 at 05:52:16:
Speed droop: The difference between engine speed at maximum high idle and the engine speed at maximum full load. A method of rating the operating characterisitcs of the engine governor, be it a mechanical style or programming of the governor feature in the engine ECM...........
Engines used in power generation or stationary applications typically utilize a governor or ECM programming that has less "speed droop" in order to maintain more precise engine speed control.........i.e. Max. high idle - 1850 RPM., Max. full load - 1800 RPM., speed droop = 50 RPM............
Engines utilitzed in highway/vehicle applications typically utilize a governor or ECM programming with more "speed droop" in order to provide better driveabilty for the vehicle............i.e. Max. high idle - 2300 RPM., Max. full load - 2150 RPM., speed droop = 150 RPM................
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