Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Patent
1995-07-28
1996-11-05
Moulis, Thomas N.
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
137587, 141 59, F02M 2508
Patent
active
055706720
ABSTRACT:
A fuel evaporative emission treatment system installed in an engine fuel system has a canister for adsorbing evaporative fuel, a vent hose connecting a fuel tank and the canister, and a vent circulation hose connecting the vent hose and a filler neck of the fuel tank, and the sectional areas of the vent hose and vent circulation hose are set so that the ratio thereof may be a proper value. The negative pressure produced in the filler neck due to aspiration induced by refueling is canceled out by the pressure of fuel gas circulated to the filler neck through the vent circulation hose, whereby the internal pressure of the filler neck is controlled to a value appropriately smaller than the atmospheric pressure. Thus, inflow of the outside air into the filler neck, and thus generation of evaporative fuel gas, can be suppressed, and also the outflow of evaporative fuel gas from the filler neck is suppressed.
REFERENCES:
patent: 4762156 (1988-08-01), Rich
patent: 5054528 (1991-10-01), Saitoh
patent: 5244022 (1993-09-01), Gimby
patent: 5282497 (1994-02-01), Allison
patent: 5299605 (1994-08-01), Bergamini et al.
patent: 5335638 (1994-08-01), Mukai
patent: 5431199 (1995-07-01), Benjay et al.
patent: 5456238 (1995-10-01), Horiuchi et al.
Ando Yoichiro
Kunimitsu Masafumi
Mori Kiyoshi
Muraguchi Tomokazu
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
Moulis Thomas N.
LandOfFree
Fuel evaporative emission treatment 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 Fuel evaporative emission treatment system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel evaporative emission treatment system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2007892