Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1987-05-15
1991-01-08
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123523, 123575, F02M 3900
Patent
active
049827154
ABSTRACT:
A vapor utilization fuel system directs fuel vapor from a vehicle's fuel tank to an intake manifold on the vehicle's engine. The vapor is combusted in the normal course of engine operation. In one embodiment, a mixing canister combines additional air with the fuel vapor; the mixing canister is located on the fuel tank's fill tube. In a second embodiment, the fuel vapor can flow to either the intake manifold or to a conventional carbon canister when the engine is not running.
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