| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a leak detection apparatus of a fuel-transpiration-gas processing device that accurately detects a leak while preventing an increase in cost. <P>SOLUTION: The leak detection apparatus generates a negative pressure in a target region for leak detection of the fuel-transpiration-gas processing device, and determines a presence of the leak on the basis of a negative pressure state thereof. The leak detection apparatus includes a negative pressure pump 101 which is connected to a brake booster 204 and generates a negative pressure in the brake booster 204 and which generates the negative pressure in the target region for leak detection while blocking the region from atmosphere. <P>COPYRIGHT: (C)2012,JPO&INPIT |
