Automotive fuel tank vapor control system

Details Automotive fuel tank vapor control system Automotive fuel tank vapor control system

1991-08-09

1992-11-24

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123516, 220283, 280834, F02M 3302

Patent

active

051653796

ABSTRACT:
An automotive fuel tank and vapor control system includes a fuel tank with a fill tube for introducing liquid fuel into the tank, with the fill tube having a closure device and primary and refueling vapor conduits for conducting fuel vapors to a collection canister. A fluidic logic controller connected to the primary and refueling vapor conduits and to a sensor conduit positioned to sense the fluid pressure within the fill tube in the region in which the closure device is installed switches the flow of fuel vapor from the fuel tank to either the primary conduit or the refueling conduit, depending upon whether the closure device is open or closed.

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