Air delivery system for a transport refrigeration unit

摘要: An air delivery system for a transport refrigeration unit having dual speed prime mover, compressor, condenser, an evaporator, and first second blowers the condenser respectively. The blower is directly driven by mover adjustable arrangement. arrangement includes fixed pulley connected to blower, variable, selectable pitch diameter which biased towards its maximum diameter, idler pulley, belt linking fixed, variable pulleys, actuator moving select desired diameters of via tension in opposes bias associated with pulley.