Fig. 1 Boom circuit of an excavator
Fig. 3 Boom circuit of an excavator using IMV
Fig. 4 Boom circuit of an excavator using MCV with a pressure compensator
Fig. 5 Orifice area of the conventional MCV boom spool
Fig. 6 Input signal of the conventional MCV boom spool
Fig. 7 Boom cylinder rod displacement
Fig. 8 Consumed pump power
Fig. 9 Consumed power through meter-out orifce during boom down movement
Fig. 11 Pressures about meter-in orifce during boom down movement
Fig. 12 Pressures about meter-in orifce during boom down movement
Fig. 13 Flowrate of boom cylinder
Fig. 14 Return flow through the pressure balance valve
Fig. 15 Accumulated pump consuming power
Fig. 2 An example of MCV spool with inner check valve
Fig. 10 Consumed power through meter-in orifce during boom down movement
Table 1 System parameters
참고문헌
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