发明名称 |
CONSTRUCTION MACHINE |
摘要 |
<p>A construction machine includes a condenser 24 for cooling refrigerant for an air conditioner; a fan 21 for cooling the condenser 24 by using forward cooling air produced during normal-rotation drive; other cooled objects such as a radiator 25 and the like disposed under the lee of the forward cooling air with respect to the condenser 24; a refrigerant pressure detector 27 for detecting the pressure of the refrigerant flowing in the condenser 24; and a controller 136 for executing reverse-rotation stop processing for returning the fan 21 to the normal-rotation drive when the pressure P of the air conditioner refrigerant detected by the refrigerant pressure detector 27 reaches a preset normal-rotation return pressure P1 during reverse-rotation drive of the fan 21. Thus, the lowering of the cooling effect of an air conditioner can be suppressed while reducing the burden of cleaning an engine room.</p> |
申请公布号 |
EP2687637(A4) |
申请公布日期 |
2015.07.01 |
申请号 |
EP20120757634 |
申请日期 |
2012.03.05 |
申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD. |
发明人 |
KIKUCHI KEIGO;HYODO KOJI;AOKI ISAMU;TANAKA TETSUJI |
分类号 |
E02F9/16;F01P5/04;F01P11/12 |
主分类号 |
E02F9/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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