专利名称：Exhaust gas cleaning device for an internal
combustion engine
发明人：Akira Takahashi,Masashi Chino,Toru
Hashimoto,Mitsuhiro Miyake,MinoruNishida,Hideaki Katashiba
申请号：US07/555442申请日：19900629公开号：US05099818A公开日：19920331
摘要：An exhaust gas cleaning device for controlling the air-to-fuel ratio of the air-fuelmixture supplied to an internal combustion engine (1) provided with a catalytic converter(14) disposed in the exhaust pipe (13) is disclosed. The air-to-fuel ratio is oscillatedaround the central level of the integral control or proportional plus integral feedbackcontrol signal based on the output of an air-to-fuel ratio sensor (12); the amplitude ofoscillation and the proportional control amount are, or alternatively, the frequency ofthe oscillation is, varied in accordance with the operating condition of the engine.
申请人：MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA,MITSUBISHI DENKIKABUSHIKI KAISHA
代理机构：Sughrue, Mion, Zinn, Macpeak and Seas
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