Hitachi Construction Machinery Co., Ltd.

Shigehisa Funabashi

Zenji Kaneko

Yoshihiro Takada

Takayuki Atarashi

Yasunori Ota

Shigekazu Kieda

Shinichi Shimode

Sotaro Tanaka

Shuichi Terakado

Shinya Okumura

Koji Kawasaki

Ichiro Hirami

Koji Tahara

Masaki Kanahara

Shinichi Mihara

Masatoshi Watanabe

Toshio Takishita

Yoshio Tanito

The construction machine including an engine room having an engine, a radiator ii for cooling the engine, and a hydraulic pump which are arranged therein, and a counterweight area which is located adjacent to the engine room and in which batteries are installed, a ventilation passage for cooling the engine room and a ventilation passage for cooling the batteries are formed separately and independently in the substantially same direction, and a flowing direction of cooling air flowing in the ventilation passage for cooling the engine room and a flowing direction of cooling air flowing in the ventilation passage for cooling the batteries are substantially parallel to each other.

Cooling structure for construction machine

In an engine cooling system which includes an intercooler for precooling combustion air supplied to an engine, an oil cooler for cooling a hydraulic working fluid for use in a hydraulic excavator, a radiator for cooling cooling water supplied to the engine, a cooling fan in the form of a centrifugal fan, and a suction duct for introducing the cooling air to the suction side of the cooling fan, an opening diameter of a suction duct downstream end is smaller than an opening diameter of a rotary shroud suction-side end, and the suction duct downstream end is positioned inside the rotary shroud suction-side end in overlapped relation.

Engine cooling apparatus

Engine cooling system and construction machine

Growing community of inventors

Naka, Japan

Shigehisa Funabashi