Patent ID: 6698403
Filing Date: 2004-03-02
Classification: F02M

Abstract:
A fuel vapor adsorption apparatus of an internal combustion engine, comprising:an adsorbent, disposed in at least a part of a cross section of an intake air passage of the internal combustion engine, that adsorbs fuel vapor; a heater that heats the adsorbent; and a controller that controls the heater to adjust a heating amount for heating the adsorbent during a desorbing control of the internal combustion engine for desorbing fuel vapor from the adsorbent in accordance with an amount of intake air passing through the intake air passage of the internal combustion engine, wherein the controller controls the heater in accordance with the operating state of the internal combustion engine and the controller operates the heater only in at least one of a case where the revolution speed of the internal combustion engine is smaller than a first predetermined value and a case where the load of the internal combustion engine is smaller than a second predetermined value.