Exhaust gas cleanup device for internal combustion engine

Details Exhaust gas cleanup device for internal combustion engine Exhaust gas cleanup device for internal combustion engine

2006-03-14

2006-03-14

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Having sensor or indicator of malfunction, unsafeness, or...

C060S276000, C060S295000, C060S301000

Reexamination Certificate

active

07010907

ABSTRACT:
In an internal combustion engine (100) provided with an NOxabsorbing reduction catalyst (2) in an exhaust gas passage (1), there are arranged: an oxygen sensor (3) which is mounted downstream of the NOxabsorbing reduction catalyst (2) in the exhaust gas passage (1); and a determination means for determining a condition of degradation of the NOxabsorbing reduction catalyst (2) on the basis of a time length, during which a voltage value, having a small amount of variation before the voltage value outputted from the oxygen sensor (3) is recorded as a maximum value when executing a rich spike, is recorded.

REFERENCES:
patent: 5388406 (1995-02-01), Takeshima et al.
patent: 5595060 (1997-01-01), Togai et al.
patent: 5735119 (1998-04-01), Asanuma et al.
patent: 6244046 (2001-06-01), Yamashita
patent: 6293094 (2001-09-01), Schmidt et al.
patent: 6345498 (2002-02-01), Yonekura et al.
patent: 6484493 (2002-11-01), Takanohashi
patent: 19944694 (2000-08-01), None
patent: 100 27 738 (2001-02-01), None
patent: 100 30 064 (2001-04-01), None
patent: 0 930 425 (1999-07-01), None
patent: 1 054 141 (2000-11-01), None
patent: 2000-8909 (2000-01-01), None
patent: 2000-045752 (2000-02-01), None
patent: 2000-110552 (2000-04-01), None
patent: 2000-345830 (2000-12-01), None
patent: 2001-003735 (2001-01-01), None
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