System for supplying secondary air for an internal combustion en

Details System for supplying secondary air for an internal combustion en System for supplying secondary air for an internal combustion en

1982-03-18

1984-08-14

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60284, 60293, F02B 7510, F01N 322

Patent

active

044648960

ABSTRACT:
A system for supplying secondary air for an emission control system of an internal combustion engine having a catalytic converter. The system comprises a secondary air conduit communicated with an exhaust port of the engine, a reed valve provided in the secondary air conduit for preventing the counterflow. The inlet of the reed valve is communicated with the atmosphere for inducting secondary air into the exhaust passage. A valve is provided for opening the inlet of the reed valve, and a valve actuator for actuating the valve. An engine temperature sensor is provided for producing an output signal when the temperature of the engine is below than a predetermined temperature. An electric circuit is operated in response to the output signal of the engine temperature sensor. A timer including a switch is adapted to be operated by the output signal of the engine temperature sensor for closing the switch for a predetermind time for operating the electromagnetic valve to operate the valve actuator for opening the inlet, whereby secondary air is sucked into the exhaust passage.

REFERENCES:
patent: 3653212 (1972-04-01), Gast et al.
patent: 3927523 (1975-12-01), Shioyama
patent: 3986352 (1976-10-01), Casey
patent: 4099377 (1978-07-01), Yoshimura
patent: 4147033 (1979-04-01), Miura
patent: 4169352 (1979-10-01), Iwata

Affiliated with

Also associated with

Rating

System for supplying secondary air for an internal combustion en does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for supplying secondary air for an internal combustion en, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for supplying secondary air for an internal combustion en will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-107595