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A Study on the Development of an Energy Saving Unit for a Hydraulic Elevator

유압식 엘리베이터용 에너지 저감장치의 개발에 관한 연구

  • Cho, Ihn-Sung (Division of Mechanical System Engineering, Chonbuk National University)
  • 조인성 (전북대학교 기계시스템공학부)
  • Received : 2013.03.08
  • Accepted : 2013.05.09
  • Published : 2013.05.31

Abstract

In a traditional hydraulic elevator, elevator car is descended by down control valve, and the oil hydraulic energy must be lost during the descending stroke. In this paper, hybrid type energy saving unit for a hydraulic elevator is researched to save the hydraulic energy which is lost during the descending stroke. The energy is stored as converted electrical energy, and the saved energy is reused as the auxiliary power for the ascending stroke of elevator car or the main power of other parts. The results show that the output characteristics are stable and good and the research is successful and useful to reuse the saved energy during the descending stroke of elevator car.

Keywords

Control valve;Energy saving unit;Hydraulic elevator;Power unit

References

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