Caterpillar: 336E H
Caterpillar’s 336E H hydraulic excavator centers on a fuel-saving, hydraulically based energy recovery system that captures and reuses energy, which conventional excavators release in the form of heat. Reduced fuel consumption is the net result – as much as 25 percent less, according to Cat. Fuel conservation begins with the 336E H Electronic Standardized Programmable hydraulic pump, which integrates the machine power sources and matches engine performance to the load encountered. Additional fuel-saving features include three power modes, on-demand power and an engine idle shutdown system. Cat’s Adaptive Control System uses a main control valve that optimizes hydraulic performance by intelligently managing restrictions and flows, controlling machine motion and ensuring that hydraulic power is available precisely where and when it’s needed. The system also captures kinetic energy from the swing deceleration phase, storing it for reuse.
Photo: Caterpillar
About the Author: PQ Staff
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