Doosan brings forward hybrid plans
By Chris Sleight06 April 2009
Doosan Infracore plans to launch a hybrid excavator in the US in 2012, two years ahead of its previously announced 2014 development target.
Doosan also said it would be taking a similar approach to the one taken by Komatsu with the hybrid excavators launched in Japan last year. These use capacitors act as a slewing brake and capture energy when the operator turns the upper structure of the machine.
A statement from Doosan said, "The innovative Doosan hybrid excavator will be equipped with a diesel engine, electric swing motor, electric converter and ultra-capacitor that will store excess energy during turning and light-duty work."