Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Reexamination Certificate
2007-05-15
2007-05-15
Moulis, Thomas (Department: 3747)
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
C123S520000
Reexamination Certificate
active
11124696
ABSTRACT:
An evaporative emission control and leak detection system for a vehicle is provided. The system includes an integrated valve module in fluid communication with a carbon canister and atmosphere. The module is arranged to vent the system when exposed to predetermined high negative and positive pressure conditions. The module includes a switch mechanism having a spring biasing member arranged to bias the switch mechanism to an open position. The switch is operable to indicate when the system is in a low negative pressure condition. The switch also includes a negative pressure valve coupled to a fluid passage between the canister, the atmosphere and the switch, and a positive pressure valve coupled to a fluid passage between the canister and atmosphere that bypasses the negative pressure valve and switch. The negative and positive pressure valves are positioned in a stacked arrangement in the integrated valve module.
REFERENCES:
patent: 5383437 (1995-01-01), Cook et al.
patent: 6823850 (2004-11-01), Hurley
patent: 6928991 (2005-08-01), Hurley
patent: 7040301 (2006-05-01), Perry et al.
patent: 7047950 (2006-05-01), Hurley
DaimlerChrysler Corporation
Jurecko Thomas A.
Moulis Thomas
LandOfFree
Evaporative system integrity monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Evaporative system integrity monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evaporative system integrity monitor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3823047