Bauma 2013: New Developments in Construction Equipment Deliver Greater Fuel Efficiency

Created: February 21, 2013

Energy efficiency and fuel savings are two of the main trends that will be spotlighted at international trade fair

Instead of losing the kinetic energy when braking the upper structure, Caterpillar's 336E H hybrid excavator captures that energy in accumulators and re-uses it during swing acceleration.
Instead of losing the kinetic energy when braking the upper structure, Caterpillar's 336E H hybrid excavator captures that energy in accumulators and re-uses it during swing acceleration.
On display will be the JCB Ecomax engine, which meets Stage IIB/Tier 4 Interim without the need for diesel particle filters or emissions aftertreatment.
On display will be the JCB Ecomax engine, which meets Stage IIB/Tier 4 Interim without the need for diesel particle filters or emissions aftertreatment.

Hamm saves fuel with load-dependent control

Hamm AG of Germany, part of the Wirtgen Group, is expanding its range of articulated tandem rollers. The new HD+ 70i and HD+ 80i are fitted with engine technology that already meets the EU IV / Tier 4 Final standards, which will come into force in 2014.

Two separately controlled ventilators cool the charge air, hydraulic oil and engine cooling fluid. In doing so, the load-dependent control of the ventilator for engine cooling saves fuel and reduces noise emissions. In addition the rollers are fitted as standard with the Hammtronic engine management system, which Hamm says ensures that the engine is always operated in the right loading range. This optimizes performance and minimizes consumption.