Frigoblock says its water-cooled, asynchronous, three-phase alternators, which feature inverter technology, have been optimised for Euro 6 trucks.
They have been designed to deliver high performance even at truck engine idle speed, offer soft (smooth) start-up and require very little maintenance.
Frigoblock explains that asynchronous technology works by allowing modulation of the feed voltage independent of the engine rpm – meaning they can match cooling demand virtually irrespective of the engine speed.
In fact, the company claims that energy consumption can be reduced by 75%, compared to conventional diesel-driven refrigeration units – and that, because of the soft starting, truck engine power drop problems are eliminated.
The firm also suggests that operators with vehicles on multi-drop distribution duty benefit, because door openings and frequent stops present less of a problem to maintaining the target cargo temperature.
Incidentally, the inverter filter is designed to control several machines so that all refrigeration units and additional evaporators of a drawbar-trailer combination can be controlled by one unit and from one operator panel.
The new AW alternators have been developed for use with Frigoblock inverter fridge units but, with by using inverter filters, can now also be used on its classic FK, EK and HK series to deliver similar performance improvements.