Secondary air supply apparatus for engine

Details Secondary air supply apparatus for engine Secondary air supply apparatus for engine

1993-07-07

1995-10-10

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60289, 60300, F01N 320

Patent

active

054560632

ABSTRACT:
An apparatus for supplying the secondary air to a catalyst in an exhaust gas passage is disclosed. An electric heater is fixed to the catalyst to which the secondary air is supplied by an electric air pump. The heater and the air pump are connected with a battery through relay contacts, respectively. During the cold operation of the engine, an electric control unit switches on/off the relay contacts, so as to actuate the air pump prior to the heater and stop the air pump after the heater. The secondary air is supplied to the catalyst when the temperature of catalyst is raised up to the activating point.

REFERENCES:
patent: 3503716 (1970-03-01), Berger
patent: 3775064 (1973-11-01), Berger
patent: 5146743 (1992-09-01), Maus

Affiliated with

Also associated with

Rating

Secondary air supply apparatus for engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Secondary air supply apparatus for engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secondary air supply apparatus for engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2303427