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https://drivepatents.com/patents/992261 · 27 Mar 2013
The present invention relates to an apparatus for controlling a raise speed of a working machine for heavy equipment that includes first and second pumps, a main control valve unit that includes two lift cylinder operation units connected with the first an...
https://drivepatents.com/patents/997362 · 10 Oct 2012
The present invention relates to an energy reclaiming system for an electric forklift truck. The energy reclaiming system includes an electronic device (1) operated by a motor when a working machine is raised and operated by a generator when the working ma...