Exhaust pipe of an internal-combustion engine

Details Exhaust pipe of an internal-combustion engine Exhaust pipe of an internal-combustion engine

1992-07-02

1994-01-18

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60324, F10N 328

Patent

active

052791173

ABSTRACT:
An exhaust pipe of an internal-combustion engine in which self-regulating throttle element is arranged behind the catalyst. In the warm-up phase of the internal-combustion engine, the throttle element closes off the exhaust pipe almost completely. The resulting increased exhaust back pressure causes a higher mass flow rate of the engine, whereby the exhaust gas temperature rises and the catalyst is warmed up rapidly.

REFERENCES:
patent: 1483354 (1924-02-01), Kopper
patent: 3043095 (1962-07-01), Sturtz
patent: 3234924 (1966-02-01), May
patent: 3406515 (1968-10-01), Behrens
patent: 3957447 (1976-05-01), Hanaoka
patent: 5144796 (1992-09-01), Swars

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