发明名称 Evaporative fuel handling apparatus
摘要 A fuel handling apparatus with a purge system, a first communication passage, and a second communication passage with a greater pressure loss than the first communication passage. A check device is coupled to the second communication passage for checking a leak of evaporative fuel from the purge system. A pump is included, and a selector device is included for switching fluid communication of the pump between one of the first communication passage and the second communication passage. A controller controls the selector device to allow fluid communication between the first communication passage and the pump and then controls the pump to produce the pressure difference for forcible purging. The controller further controls the selector device to allow fluid communication between the second communication passage and the pump, and then controls the pump to produce the pressure difference and controls the check device for leak checking.
申请公布号 US2007023015(A1) 申请公布日期 2007.02.01
申请号 US20060494521 申请日期 2006.07.28
申请人 DENSO CORPORATION 发明人 UCHIDA AKIKAZU;NAKAMURA HIROSHI;KOBAYASHI YASUNORI
分类号 F02M33/04 主分类号 F02M33/04
代理机构 代理人
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