发明名称 Method of changing an air filter of vehicle air conditioning system
摘要 A method of signaling for a change of an air filter of a vehicle air conditioning system is disclosed. The present invention uses a sensor installed in a conventional air conditioner and the appropriate time for changing the air filter is determined by checking compressor operation when a degree of airflow is decreased during air conditioner operation.
申请公布号 US2004041710(A1) 申请公布日期 2004.03.04
申请号 US20020331885 申请日期 2002.12.30
申请人 KWON JONG HWAN 发明人 KWON JONG HWAN
分类号 B60H3/06;(IPC1-7):G08B21/00 主分类号 B60H3/06
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