Fluid handling – Systems – System with plural openings – one a gas vent or access opening
Patent
1993-06-07
1994-07-12
Chambers, A. Michael
Fluid handling
Systems
System with plural openings, one a gas vent or access opening
123519, 141 59, F02M 3302
Patent
active
053279344
ABSTRACT:
A pressure control valve for controlling vapor pressure in a fuel tank has an inlet line from the fuel tank, a pressure sensing line from the filler pipe, and an outlet line to a canister for handling the fuel vapor. Fuel vapor flow through the valve is controlled by ambient pressure from the filler pipe and tank pressure from the fuel tank, with those pressures acting on two diaphragms within the valve to alternately allow flow through the valve during normal vehicle operation and to prevent flow during refueling. A pressure relief valve is connected between the filler pipe line and the canister outlet line to prevent tank overpressurization should the valve malfunction.
REFERENCES:
patent: 3616783 (1971-11-01), Masters
patent: 4040404 (1977-08-01), Tagawa
patent: 4343281 (1982-08-01), Uozumi et al.
patent: 4706708 (1987-11-01), Fornuto et al.
patent: 4790349 (1988-12-01), Harris
patent: 4951637 (1990-08-01), Cook
patent: 5014742 (1991-05-01), Covert et al.
patent: 5054508 (1991-10-01), Benjey
patent: 5054528 (1991-10-01), Saitoh
patent: 5099880 (1992-03-01), Szlaga et al.
patent: 5103877 (1992-04-01), Sherwood et al.
patent: 5215132 (1993-06-01), Kobayashi
Chambers A. Michael
Ford Motor Copany
Kelley David B.
May Roger L.
LandOfFree
Automotive fuel tank pressure control valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automotive fuel tank pressure control valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automotive fuel tank pressure control valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-390009