Improvement of energy efficiency in hydraulic systems

A hydraulic system, energy efficiency technology, applied in the direction of fluid pressure actuation system components, fluid pressure actuation devices, base materials, etc., can solve problems such as high energy consumption, achieve favorable cost, system performance and energy efficiency improvement, fast The effect of ROI time

Inactive Publication Date: 2008-12-31
EVONIK ROHMAX ADDITIVES GMBH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this pathway is usually accompanied by higher energy expenditure

Method used

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  • Improvement of energy efficiency in hydraulic systems
  • Improvement of energy efficiency in hydraulic systems
  • Improvement of energy efficiency in hydraulic systems

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Embodiment Construction

[0020] The hydraulic fluid used according to the invention has a viscosity index of at least 130, preferably at least 150, more preferably at least 180 and most preferably at least 200. According to a preferred embodiment of the present invention, the viscosity index is in the range of 150-400, more preferably 200-300. Viscosity index can be determined according to ASTM D 2270.

[0021] The use according to the invention provides improvements in the energy efficiency of hydraulic systems. The expression energy efficiency means a better efficiency of the energy supplied to the hydraulic system to achieve a defined result. In particular, the energy consumption of the system can be reduced by at least 5%, more preferably at least 10% and more preferably at least 20%, based on the energy of a system using a single stage hydraulic fluid having a VI of about 100 and providing the same system work or effect consume. The type of energy generally depends on the unit providing mechan...

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Abstract

The present invention describes use of a fluid having a VI of at least 130 to improve the en- ergy efficiency of a hydraulic system. Furthermore, the present invention relates to a hy- draulic system comprising a hydraulic fluid having a VI of at least 130, a unit for creating mechanical power, a unit that converts mechanical power into hydraulic energy, and a unit that converts hydraulic energy into mechanical work. Preferentially, engine speed can be reduced to decrease load and stress while delivering the same amount of hydraulic power.

Description

technical field [0001] The present invention relates to improvements in energy efficiency in hydraulic systems. Background technique [0002] Hydraulic systems are designed to transmit energy and apply great force with a high degree of flexibility and control. This requires the creation of efficient systems for converting input energy from engines, electric motors or other sources into usable work. Hydraulic power can be used to generate rotary or linear motion, or to store energy for future use in an actuator. Hydraulic systems provide a significantly more precise and adjustable method of converting energy than electrical or mechanical systems. Generally, hydraulic systems are reliable, efficient, and cost-effective, leading to their widespread use in industrial fields. The hydraulic power industry continues to improve the cost-effectiveness of hydraulic systems through the use of new mechanical components and materials of construction. [0003] A practical application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M171/02C10M145/14C10M145/16F15B21/06C10N30/02C10N40/08
CPCC10M145/14C10M145/16C10M171/02C10M2209/084C10M2209/086C10N2030/02C10N2040/08C10N2030/54F15B21/06C10M105/32C10M145/10
Inventor D·普莱塞克C·D·G·内沃S·N·赫佐格
Owner EVONIK ROHMAX ADDITIVES GMBH
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