INCREASING HYDRAULIC ENERGY STORAGE CAPACITY: FLYWHEEL-ACCUMULATOR

被引：21

作者：

Van de Ven, James D. ^{[1
]}

机构：

[1] Worcester Polytechn Inst, Dept Mech Engn, 100 Inst Rd, Worcester, MA 01609 USA

来源：

INTERNATIONAL JOURNAL OF FLUID POWER | 2009年 / 10卷 / 03期

关键词：

hydraulic energy storage; flywheel; accumulator; hydraulic hybrid vehicle;

D O I：

10.1080/14399776.2009.10780987

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The energy storage density of hydraulic accumulators is significantly lower than energy storage devices in other energy domains. As a novel solution to improve the energy density of hydraulic systems, a flywheel-accumulator is presented. Energy is stored in the flywheel-accumulator by compressing a gas, increasing the moment of inertia of the flywheel by adding hydraulic fluid, and by increasing the angular velocity of the flywheel. Through a numerical model of the energy flows in the system, the energy storage of the flywheel-accumulator was demonstrated to be approximately 10 times greater than a conventional accumulator. Furthermore, the flywheel-accumulator allows the hydraulic system pressure to be independent of the quantity of energy stored. The integral flywheel-accumulator presents numerous future research challenges, yet offers the potential to transform and enable numerous applications including plug-in hydraulic hybrid vehicles.

引用

页码：41 / 50

页数：10

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