Energy Saving Effect in Boom Motion of Excavator using IMV

IMV를 사용한 유압굴삭기 붐 동작의 에너지 절감 효과

  • 허준영 (한국기술교육대학교 메카트로닉스공학부) ;
  • 이민희 (울산대학교건설기계공학과)
  • Published : 2018.12.01

Abstract

Keywords

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Fig. 1 Boom circuit of an excavator

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Fig. 3 Boom circuit of an excavator using IMV

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Fig. 4 Boom circuit of an excavator using MCV with a pressure compensator

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Fig. 5 Orifice area of the conventional MCV boom spool

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Fig. 6 Input signal of the conventional MCV boom spool

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Fig. 7 Boom cylinder rod displacement

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Fig. 8 Consumed pump power

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Fig. 9 Consumed power through meter-out orifce during boom down movement

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Fig. 11 Pressures about meter-in orifce during boom down movement

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Fig. 12 Pressures about meter-in orifce during boom down movement

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Fig. 13 Flowrate of boom cylinder

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Fig. 14 Return flow through the pressure balance valve

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Fig. 15 Accumulated pump consuming power

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Fig. 2 An example of MCV spool with inner check valve

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Fig. 10 Consumed power through meter-in orifce during boom down movement

Table 1 System parameters

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References

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