An evaporative-emission-control system, including: a canister recovering an evaporated fuel generated in a fuel tank; an ambient-air-introduction passage introducing an ambient air into the canister; first and second purge passages purging a gas from the c...

An abnormality sensing device for an evaporation fuel purge system is equipped with a purge passage (18) that connects a canister (13) to an intake passage (210) of an internal combustion engine, a purge pump (14), a purge control valve (15), and a valve c...

Volatile fuel dosed injector for a motor vehicle combustion engine has electromagnetic valve (1) controlled by pulse width modulation and control through flow sensor (6) : A device for the dosed injection of volatile fuel constituents into the inlet tube o...

Volatile fuel dosed injector for a motor vehicle combustion engine has electromagnetic valve (1) controlled by pulse width modulation and control through flow sensor (6) : A device for the dosed injection of volatile fuel constituents into the inlet tube o...

A method and apparatus for controlling a solenoid-actuated charcoal canister (36) purge valve (40) to control the flow of purge fuel that is supplied via the purge valve (40) to a cylinder of an internal combustion engine (14). The method includes generati...

A controller (40) for purging an optimal amount of vaporized fuel in accordance with the operating conditions of an engine (10). The controller presumes the flow rate of the purged gas to be that when a purge valve (35) is fully opened and uses the presume...

The opening time of the control valve (10), which is synchronized with cylinder induction, is variable.