Tank vent control apparatus

Details Tank vent control apparatus Tank vent control apparatus

1999-01-07

1999-12-21

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123516, 137588, F02M 3302

Patent

active

060034998

ABSTRACT:
An apparatus is provided for controlling venting of vapor to and from a fuel tank. The apparatus includes a housing and first and second valves positioned in the housing. The first valve controls the primary flow of vapors from the fuel tank and includes an aperture permitting an auxiliary flow of vapor to and from the fuel tank. The second valve controls the auxiliary flow of vapor to the fuel tank and includes first and second apertures permitting vapor to flow to the fuel tank. The second valve moves between a first position permitting vapor to flow through the first aperture and a second position permitting vapor to flow through the first and second apertures at a greater flow rate.

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