Evaporation fuel treating device for an internal combustion engi

Details Evaporation fuel treating device for an internal combustion engi Evaporation fuel treating device for an internal combustion engi

1998-07-09

2000-07-04

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123 9015, F02M 3304

Patent

active

060823380

ABSTRACT:
In an evaporated fuel treatment device for an internal combustion engine, various parameters indicating that an engine is currently in a state where a fuel vapor is generated from a fuel tank are detected from moment to moment to estimate in advance that the amount of the fuel vapor is generated more than a capacity of the canister. Then, the purge from the canister is promoted on the basis of that estimation so that the fuel vapor of more than the capacity of canister is prevented from being adsorbed by the canister. With this structure, the overflow of the fuel vapor from the canister is prevented, and also the evaporative emission is suppressed.

REFERENCES:
patent: 5215061 (1993-06-01), Ogawa
patent: 5690065 (1997-11-01), Van Vuuren

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