Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Patent
1993-10-08
1995-01-31
Lazarus, Ira S.
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
60286, 60300, 60303, 123424, F01N 336
Patent
active
053850173
ABSTRACT:
A catalyst heating control apparatus includes a catalytic converter arranged in an exhaust passage of an internal combustion engine, a heating part for heating a catalyst of the catalytic converter after the engine has started operating so as to promote a catalytic conversion of exhaust gas from the engine, a detecting part for sensing a temperature of engine coolant of the engine and a calculating part for determining a releasing condition based on an engine temperature sensed by the detecting part at the start of the engine operation. The heating of the catalyst of the catalytic converter is stopped when the releasing condition is satisfied. A stopping part stops the heating part from heating the catalyst of the catalytic converter when an operating condition of the engine satisfies the releasing condition.
REFERENCES:
patent: 3732696 (1973-05-01), Masaki
patent: 4111010 (1978-09-01), Minami
patent: 4351297 (1982-09-01), Suematsu
patent: 5184463 (1993-02-01), Becker et al.
patent: 5263318 (1993-11-01), Oota
Lazarus Ira S.
O'Connor Daniel J.
Toyota Jidosha & Kabushiki Kaisha
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