Patent Trend of Independent Metering Valve for Construction Vehicle

건설차량용 독립 미터링 밸브(IMV)의 특허 동향

  • Published : 2018.12.01

Abstract

Keywords

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Fig. 1 IMV patent from Hyundai(2014)

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Fig. 2 IMV patent from Hyundai(2015)

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Fig. 5 IMV patent from Caterpillar(1999)

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Fig. 6 IMV patent from Caterpillar(2003)

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Fig. 7 IMV patent from Caterpillar(2005)

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Fig. 8 IMV patent from Caterpillar(2007)

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Fig. 9 IMV patent from Caterpillar(2014)

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Fig. 10 IMV patent from HUSCO(2002)

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Fig. 11 IMV patent from HUSCO(2002)

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Fig. 12 IMV patent from Volvo(2010)

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Fig. 13 IMV patent from Parker(2013)

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Fig. 14 Suggested IMV circuit for Excavator

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Fig. 3 IMV patent from Deere & company(1984)

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Fig. 4 IMV patent from Deere & company(1988)

Table 1 Patent list for IMV

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References

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  4. A. Shenouda & W.J. Book, "Selection of operating modes of a multi-functional hydraulic device", Proceedings of IMECE 2005, pp.1-11.
  5. Keith A. Tabor, "A novel method of controlling a hydraulic actuator with four valve independent metering using load feedback", SAE 2005-01-3639.
  6. Bin Yao, "Integrated mechatronics design of precision and energy saving electro-hydraulic systems", Procedding of the 7th international conference on fluid power transmission and control" pp.360-372, 2009
  7. M. Chen, D. Zhao, "The gravitational potential energy regeneration system with closed-circuit of boom of hydraulic excavator", Mechanical systems and signal processing