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公开(公告)号：US12024010B2
公开(公告)日：2024-07-02
申请号：US17699819
申请日：2022-03-21
申请人： Wirtgen GmbH
IPC分类号： B60K11/04 , E01C23/088 , E01C23/12
CPC分类号： B60K11/04 , E01C23/088 , E01C23/127
摘要： A self-propelled earth working machine includes a traveling gear, a machine frame supported by the traveling gear, a power source accommodated on the machine frame for providing power for a travel operation and/or for an earth working operation, a working apparatus accommodated on the machine frame for earth working, and a cooling device for cooling a functional device of the earth working machine. The cooling device includes at least one heat exchanger system for transferring heat from a cooling medium to air, and a ventilator system, which is on the one hand designed and situated to produce a cooling air flow passing the heat exchanger system and which is on the other hand designed and situated to produce in the area of the power source a ventilation air flow flowing away from the power source. The heat exchanger system and a ventilation volume, in which the ventilation air flow flows away from the power source, are situated on the suction side of the ventilator system, the ventilation volume being situated downstream of the heat exchanger system relative to the cooling air flow, so that the ventilation air flow generated by the ventilator system meets the cooling air flow downstream of the heat exchanger system and upstream of the ventilator system.
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公开(公告)号：US20220314785A1
公开(公告)日：2022-10-06
申请号：US17699819
申请日：2022-03-21
申请人： Wirtgen GmbH
IPC分类号： B60K11/04 , E01C23/088 , E01C23/12
摘要： A self-propelled earth working machine includes a traveling gear, a machine frame supported by the traveling gear, a power source accommodated on the machine frame for providing power for a travel operation and/or for an earth working operation, a working apparatus accommodated on the machine frame for earth working, and a cooling device for cooling a functional device of the earth working machine. The cooling device includes at least one heat exchanger system for transferring heat from a cooling medium to air, and a ventilator system, which is on the one hand designed and situated to produce a cooling air flow passing the heat exchanger system and which is on the other hand designed and situated to produce in the area of the power source a ventilation air flow flowing away from the power source. The heat exchanger system and a ventilation volume, in which the ventilation air flow flows away from the power source, are situated on the suction side of the ventilator system, the ventilation volume being situated downstream of the heat exchanger system relative to the cooling air flow, so that the ventilation air flow generated by the ventilator system meets the cooling air flow downstream of the heat exchanger system and upstream of the ventilator system.
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