Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Patent
1992-07-31
1994-05-31
Nelli, Raymond A.
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
60285, F01N 300
Patent
active
053158237
ABSTRACT:
A control apparatus for speedily warming up a catalyst disposed within an exhaust pipe connected to an internal combustion engine. The control apparatus calculates a demand fuel injection quantity into the engine on the basis of an operating state of said engine, and corrects the calculated demand fuel injection quantity on the basis of a warming-up state of a catalyst provided in an exhaust pipe of the engine so that an air fuel ratio in the engine is repeatedly controlled to a rich side and a lean side in a state that the warming-up of the catalyst is not completed. The control apparatus is equipped with an inhibiting function to inhibit the air fuel ratio from being controlled to the rich side and the lean side when the engine takes an operating state that the injection quantity is set to a rich side with respect to the theoretical air fuel ratio.
REFERENCES:
patent: 3751941 (1973-08-01), Pollock
patent: 3813877 (1974-06-01), Hunt
patent: 4007590 (1977-02-01), Nagai
patent: 4132198 (1979-01-01), Masaki
patent: 4351297 (1982-09-01), Suematsu
patent: 4379387 (1983-04-01), Iizuka
patent: 4574588 (1986-03-01), Hayama
patent: 4617793 (1986-10-01), Suzuki
patent: 4693076 (1987-09-01), Chujo et al.
patent: 4974414 (1990-12-01), Kono et al.
patent: 5090199 (1992-02-01), Ikuta et al.
patent: 5115639 (1992-05-01), Gopp
patent: 5129228 (1992-07-01), Kondo
patent: 5136842 (1992-08-01), Achleitner et al.
patent: 5138833 (1992-08-01), Kabasin et al.
patent: 5158658 (1992-10-01), Yoshida et al.
patent: 5163290 (1992-11-01), Kinnear
patent: 5168700 (1992-12-01), Furuya
Sakurai Shigenori; Apparatus for Purifying Exhaust Gas of Engine; Patent Abstracts of Japan; Mar. 22, 1983; vol. 007, No. 133.
Uchinami Masanobu; Air-fuel Ratio Controller; Patent Abstracts of Japan; Feb. 15, 1990; vol. 014, No. 209.
Ihara Kazunori; Exhaust Gas Purifying Device for Engine; Patent Abstracts of Japan; Aug. 30, 1991, vol. 015, No. 463.
Nakabayashi Katsuhiko; Air-fuel Ratio Control System; Patent Abstracts of Japan; Feb. 7, 1983; vol. 007, No. 98.
Sawamoto Hiroyuku; Air-Fuel Ratio Control Device for Internal Combustion Engine; Patent Abstracts of Japan; Jan. 24, 1991; vol. 015, No. 134.
Morikawa Koji; Engine Control Device of Two-Cycle Engine; Patent Abstracts of Japan; Jul. 16, 1991; vol. 015, No. 400.
Kikuchi Toshiaki
Kinugawa Masumi
Nishikawa Seiithirou
Nelli Raymond A.
Nippondenso Co. Ltd.
LandOfFree
Control apparatus for speedily warming up catalyst in internal c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control apparatus for speedily warming up catalyst in internal c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control apparatus for speedily warming up catalyst in internal c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1620333