SELF-CONTAINED VEHICLE REFRIGERATION UNIT INCLUDING DRIVE SYSTEM HAVING MULTI-DRIVE PLATE

摘要

A self-contained vehicle refrigeration unit including a refrigeration unit housing, a refrigeration unit drive system having a driving device that is separate from a driving device for a vehicle on which the refrigeration unit is mounted, an evaporator section and a condensing section. The drive system, the evaporator section and the condensing section are mounted within the unit housing so that none of the components of the vehicle refrigeration unit protrudes into a payload or cargo space of a vehicle body. The drive system includes a multi-drive plate for securedly mounting and accurately positioning a plurality of drive system components on a single support structure. The drive system also has a single drive belt for being driven by at least one driving member. The multi-drive plate supports and aligns pulleys connected to the driving member and the driven component so that the single drive belt drives at least one driven component. The driving device may include a clutch for allowing the drive system to be driven by a main driving device or by an auxiliary drive device. The driving device and the at least one driven component are mounted on the same side of the multi-drive plate. The pulleys attached to the driving device and the at least one driven component and the serpentine belt are mounted on another side of the multi-drive plate so that the serpentine belt is easily accessible. The single serpentine belt is provided with a spring-mounted tension pulley for maintaining a desired tension in the belt.