Servo drive reduces energy consumption by up to 50%
3rd Quarter 2015
Electrical switching & drive systems & components
Voith Turbo’s advanced new closed loop differential pump (CLDP)servo drive saves substantially on energy costs. The heart of the unit is an integrated servo pump consisting of a servo motor and an internal gear pump. Its flow rate is perfectly matched to the cylinder surfaces of a differential cylinder. The unit also includes intelligent control via fieldbus connection, a pressure limiter and a small compensating tank. This control system design makes expensive valve engineering unnecessary. As a result, energy losses caused by throttle effects do not occur. This increases machine energy saving by up to 50% compared to machinery using conventional drive systems.
The self-contained linear drive combines electromechanical and hydraulic systems, making it compact, dynamic and energy-efficient. Additional benefits include overload protection, a high power density and virtually wear-free operation. The servo drive is essentially a hydraulic gearbox with an almost unlimited gear ratio, making it ideally suited for use in applications with high dynamic speed requirements and high power demands. The integrated servo pump also makes energy efficiency far greater than in conventional solutions. This makes it ideal for direct linear motions when dynamic response, reproducibility and reliability are needed. The CLDP servo drive can be easily integrated into new or existing machines. Customers from diverse industries such as oil and gas, energy, mining and metal processing, mechanical engineering, ship building, rail and commercial vehicles can benefit from this advanced technology.
For more information contact Terry-Lynn McIntosh, Voith Turbo, +27 (0)11 418 4036, terry.mcintosh@voith.com, www.voith.com
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