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公开(公告)号:US09677781B2
公开(公告)日:2017-06-13
申请号:US14760280
申请日:2014-01-09
发明人: Wolfgang Breu , Stefan Hammerle
IPC分类号: F24F11/00 , F24F5/00 , F24F7/007 , F01P5/04 , F01P11/12 , F01P11/14 , F24F11/02 , F01P5/14 , B60H1/00
CPC分类号: F24F11/0086 , B60H1/00007 , B60H1/00571 , B60H1/00592 , B60H1/00828 , F01P5/043 , F01P5/14 , F01P11/12 , F01P11/14 , F01P2005/046 , F01P2031/20 , F24F5/0007 , F24F7/007 , F24F11/022 , F24F11/025 , F24F11/30 , F24F11/72 , F24F11/74 , F25B2600/11 , F25B2600/111 , F25B2600/112 , F25B2700/172 , F25B2700/173
摘要: A cooling unit for an agricultural vehicle has a grid for allowing air to enter the unit while limiting debris and a heat exchanger for transferring heat from a coolant to air passing across the heat exchanger. The cooling unit further has a duct with motor driven fan, and a controller to monitor fan current and operate the fan in alternating directions. The controller generates a heat exchanger blockage warning when desirable fan current thresholds are not achieved.