Japan, March 5 -- MITSUI E & S MACH CO LTD has got intellectual property rights for 'CRANE.' Other related details are as follows:
Application Number: JP,2024-046745
Category (FI): B66C13/12@D,B66C19/00@A
Stage: PROBLEM TO BE SOLVED: To provide a crane that is able to more surely restrict an increase in an electrical current value output from a power supply device, caused by generation of an inrush electrical current.SOLUTION: In a crane 10 including a converter 21, an inverter 22, and an electric motor 23, an electrical current value of DC power output from the converter 21 is equal to or larger than a rated electrical current value Ir of the converter 21, and is limited to a limited electrical current value Ib smaller than a peak electric current value Ip caused by an inrush electrical current generated during power running drive of the electric motor 23; and a power storage device 24 is provided, which is connected in parallel with an inverter 22 with respect to the converter 21 during a time period including a time during which an electrical current value of the AC power supplied from at least the inverter 22 to the electric motor 23 is larger than the limited electrical current value Ib.SELECTED DRAWING: Figure 3 (Grant)
Filing Date: March 22, 2024
Publication Date: Oct. 3, 2025
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
