Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1977-12-02
1979-05-08
Cox, Ronald B.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
F02M 5900
Patent
active
041530250
ABSTRACT:
In an evaporative emission control system for a vehicle, the flow of fuel vapor from the fuel tank to the vapor storage canister in the system is controlled by a vapor flow control valve having a housing with a chamber therein in flow communication with the fuel tank to receive fuel vapor therefrom this chamber being connected to the vapor storage canister by a first vapor passage means and by a second vapor passage means, with flow from the chamber through the first vapor passage means being controlled by a diaphragm valve means that is normally biased closed by a spring, and which is responsive to either engine vacuum on one side thereof or to a predetermined fuel vapor pressure on its opposite side whereby to permit vapor flow and, the second vapor passage means including a sized bleed orifice passage used to control the rate of vapor flow to the storage canister via this second vapor passage means.
REFERENCES:
patent: 3769952 (1973-11-01), Fiedler
patent: 3935850 (1976-02-01), King
patent: 4044743 (1977-08-01), Eaton
Cox Ronald B.
General Motors Corporation
Krein Arthur N.
LandOfFree
Fuel tank vapor flow 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 Fuel tank vapor flow control valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel tank vapor flow control valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1229045