Construction Machine
AssigneeHitachi Construction Machinery Co., Ltd.
InventorsDaisuke KURIHARA, Takafumi ARAKAWA
Life of this patent
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Abstract
A hydraulic excavator (1) includes a vehicle body composed of a self-propelled lower traveling structure (2) and an upper revolving structure (3), and an operator's seat (9) provided on the upper revolving structure (3). The upper revolving structure (3) is provided with a fuel cell (11) generating power supplied to an electric motor (14), a hydrogen tank (20) storing hydrogen supplied to the fuel cell (11), a heat exchanger (24) cooling the fuel cell (11), and cooling fans (25C), (25D), (26A), (27A) each supplying a cooling air to the heat exchanger (24). The operator's seat (9) is disposed on the upstream side of the hydrogen tank (20) with respect to a flow direction of a cooling air F1 generated by the cooling fans (25C), (25D), (26A), (27A).
Claims9
A construction machine having a self-propelled vehicle body, wherein
- the vehicle body comprises:
- an operator's seat;
- a fuel cell generating power supplied to an electric motor;
- a hydrogen tank storing hydrogen supplied to the fuel cell;
- a heat exchanger cooling the fuel cell;
- and a cooling fan supplying a cooling air to the heat exchanger, characterized in that
- the operator's seat is disposed on the upstream side of the hydrogen tank with respect to a flow direction of the cooling air generated by the cooling fan.
Dependencies are inferred from the claim text.