Caterpillar’s 966K XE wheel loader delivers up to a 25 percent fuel efficiency improvement, the company says. The 966K XE utilizes an integrated, continuously variable transmission system. A hydraulic pump and motor allow for a smooth and continuous gear ratio change between engine speed and machine speed. According to Cat, the variator provides this ratio flexibility while reducing the heat load generated by the drivetrain when the machine is digging, pushing and climbing under heavy load. Power is transmitted through the variator unit, as well as a parallel mechanical gear path. Power through the variator and mechanical paths are combined through a series of planetary gear sets to maximize the transmission efficiency over a range of operating conditions. The unit’s engine can deliver 290 hp.
Photo: Caterpillar
