| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a canister valve device 1 in which a pressure loss between a canister 2 and an intake path 10 is reduced, the total number of components is not increased and assembly steps are not increased, either, thereby making the device advantageous in cost. <P>SOLUTION: With electrification and non-electrification of a coil body 14, a lead-in port 7a is opened/closed but if a positive pressure is generated in an intake vicinity part 8A while a supercharger is operated, a second valve element 22 receives the positive pressure in the direction of closing the lead-in port 7a at all times. As a result, during the non-electrification of the coil body 14, a closed state of the lead-in port 7a is maintained by the second valve element 22 and at the electrification, the second valve element 22 is displaced to close the lead-in port 7a, thereby preventing a steam component 4 of fuel from flowing back from a lead-out port 8a to the lead-in port 7a. With the elimination of need of a check valve, the total number of components is not increased and assembly steps are not increased, either, thereby making a canister valve device advantageous in cost. <P>COPYRIGHT: (C)2013,JPO&INPIT |
