Yanmar Construction Equipment
Yanmar excavators incorporate the VIPPS (ViO Progressive Three-Pump System) hydraulics. The system delivers smooth operation of simultaneous hydraulic functions of the arm and boom, or arm and bucket, as excess oil flow from pump three combines with pumps one and two. Low fuel consumption is achieved by using a variable-displacement piston pump and efficient oil flow. The ability to use a lower horsepower engine results in lower fuel consumption and engine noise without sacrificing performance.
Liebherr Construction Equipment Co.
The new Liebherr designed and built Tier III-compliant diesel engines feature optimized power, high efficiency and long operating life. Engine efficiency is assured by the LIDEC-Electronic (Liebherr Diesel Engine Control) engine management system, which monitors all performance parameters and varies the settings based on demand.
Hitachi Construction and Mining Products
The Zaxis Dash-3 excavators combine Isuzu's new Tier III-certified engines with Hitachi's own next-generation HIOS III hydraulic system to increase power and performance while improving fuel economy. The engine achieves its fuel efficiency and greater output primarily through a common-rail fuel injection system and the cooled exhaust gas recirculation system. The updated hydraulic system specifically matches the engine's torque curve, plus uses a hydraulic boosting system and an enhanced boom recirculation system.
New Holland Construction
New Holland excavators use state-of-the-art components and design to use a maximum amount of the fuel's energy for work. Electronic injection, turbocharging and exhaust gas recirculation are a few of the technologies allowing the most usable energy to be captured from a given quantity of fuel. In-line shaft-driven, variable-displacement pumps and advanced hydraulic systems minimize heat loss. further enhancing fuel efficiency.
Brokk maximizes power and efficiency by utilizing advanced load-sensing hydraulics that ensure only the amount of power that is needed is spent at any given time, thus eliminating wasted energy. The Brokk machines are purposely designed for concrete breaking, thus delivering maximum productivity with concrete breaking attachments such as breakers and crushers.
TEREX Construction Americas
While meeting demands for greater productivity — more horsepower, higher speeds, bigger load capacities — TEREX heavy excavators fulfill stringent federal emission and efficiency standards. The turbocharged Tier II- and Tier III-compliant diesel engines' e-EPOS System uses variable-displacement piston pumps, ensuring high efficiency and lower fuel consumption. An "auto idle" feature kicks in when the machine comes to a rest, dropping to a lower, fuel-saving engine speed.
Bobcat optimizes hydraulic efficiency by utilizing torque limiting, variable-displacement piston pumps, which feed pressure-compensating, closed-center hydraulic control valves. The torque limiting feature of Bobcat's piston pumps minimizes engine lugging to extend fuel efficiency of the Tier II diesel engines.
Hyundai Construction Equipment
Fuel economy is a major factor in all Hyundai products. This is why the new electronics on board the new-generation excavators help to regulate and balance horsepower control throughout the full digging range. The right size engine also matches the hydraulic demand without sacrificing power and speed.