Method for ventilating a fuel system for an internal combustion

Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system

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F02M 2508

Patent

active

055423965

ABSTRACT:
A method of ventilating vapors from a fuel tank into an intake pipe of an internal combustion engine in the upper partial-load range and in the region of the full load on the internal combustion engine, a regeneration valve is first of all moved into an open position and a shut-off valve provided in a ventilating conduit of an adsorption filter is then closed. The fuel vapors then flow into the intake pipe by virtue of the intake pipe vacuum and assisted by the vapor pressure of the fuel in the fuel tank and then burned in at least one combustion space of the internal combustion engine. The method according to the invention for ventilating a fuel system is intended for use in motor vehicles.

REFERENCES:
patent: 5333589 (1994-08-01), Otsuka
patent: 5339788 (1994-08-01), Blumenstock
patent: 5355864 (1994-10-01), Kuroda et al.
patent: 5363823 (1994-11-01), Yamashita et al.
patent: 5372117 (1994-12-01), Denz et al.
patent: 5373830 (1994-12-01), Denz et al.
patent: 5398661 (1995-03-01), Denz et al.
patent: 5398662 (1995-03-01), Igarashi et al.
patent: 5411004 (1995-05-01), Busato et al.

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