Cummins Inc. said J&R Schugel Trucking has ordered 300 trucks powered by Cummins ISX engines and equipped with Cummins ComfortGuard auxiliary power unit (APU) systems, which Cummins began producing ...
Auxiliary power units (APUs) do their dull and dirty work hidden away in aircraft tailcone compartments, unlike their turbine engine brethren connected to the wings or empennage. On occasion however, ...