Mattingly & Malur, PC
Construction machine
A construction machine includes: a swing structure (50); a hydraulic pump (1); a hydraulic motor (3) for driving the swing structure (50) using hydraulic fluid from the hydraulic pump (1); an electric motor (14) for driving the swing structure (50) with or without the aid of the hydraulic motor (3); and a hydraulic actuator (16) driven by the hydraulic fluid from the hydraulic pump 1, the hydraulic actuator can be operated together with the swing structure (50). When the swing structure (50) is operated together with the hydraulic actuator (16), only the electric motor (14) is used to swing the swing structure (50).
Hitachi Construction Machinery Co., Ltd.
F F F F E E F F F E E E F E F E F E F F E
F15B F15B F15B F15B E02F E02F F15B F15B F15B E02F E02F E02F F15B E02F F15B E02F F15B E02F F15B F15B E02F
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Hidetoshi Shinya Shiho Kouji Shinji
Satake Imura Izumi Ishikawa Nishikawa