Secondary air supply system

Details Secondary air supply system Secondary air supply system

2006-04-25

2006-04-25

Tran, Binh Q. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S290000, C060S291000, C060S292000, C060S293000, C060S606000, C060S608000, C137S565130, C417S280000, C417S289000

Reexamination Certificate

active

07032375

ABSTRACT:
In the disclosed secondary air supply system, an on-off valve (13) is driven by the discharge pressure of an air pump (12). A diaphragm chamber (44) is arranged in the neighborhood of a discharge outlet (54), and a part of the discharge air flows directly into the diaphragm chamber (44). Thus, the on-off valve (13) is positively operated even at high places with low atmospheric pressure and has a fast open/close response. As an electromagnetic actuator is not used to drive the on-off valve (13), the voltage supplied to the air pump (12) (DC motor (29)) does not drop inconveniently, and at the same time, the cost is reduced. Further, the number of the lead wires (65) is reduced.

REFERENCES:
patent: 3940928 (1976-03-01), Pozniak et al.
patent: 4175386 (1979-11-01), Katahira et al.
patent: 4346555 (1982-08-01), Stoltman
patent: 4450680 (1984-05-01), Otsuka et al.
patent: 5271223 (1993-12-01), Hoshi
patent: 5567393 (1996-10-01), Muschelknautz et al.
patent: 7-158429 (1995-06-01), None
patent: 11-81998 (1999-03-01), None
patent: 2002-272080 (2002-09-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3623118