Patent ID: 9689349
Date: 2017-06-27
CPC Classifications: F02D,F02M

Claim:
1. A fuel evaporative emission control apparatus, comprising: a first communication passage for communication between an intake passage of an engine of a vehicle and a canister; a second communication passage for communication between the canister and a fuel tank; a junction at which the first communication passage is connected to the second communication passage; a third communication passage for communication between the canister and outside air; a first opening/closing portion, provided in the first communication passage, for opening and closing the first communication passage; a second opening/closing portion, provided in the second communication passage, for opening and closing the second communication passage; a third opening/closing portion, provided in the second communication passage on a side of the canister with respect to the junction of the second communication passage with the first communication passage, for opening and closing the second communication passage; a fourth opening/closing portion, provided in the third communication passage, for opening and closing the third communication passage; a tank pressure detection portion that detects a pressure within the fuel tank; and a determination portion that executes a first leak presence/absence determination for determining presence or absence of leaks of fuel evaporative gases based on a detection result of the tank pressure detection portion, with the first opening/closing portion being closed, the second opening/closing portion being opened, and the third opening/closing portion being closed.