Title:
エバポパージシステムのリーク診断装置
Document Type and Number:
Japanese Patent JP5176986
Kind Code:
B2
Abstract:
A leak diagnostic apparatus is provided for an evaporative emission control system that purges fuel vapor from an inside of a fuel tank (1) to an intake passage (6) of an internal combustion engine. The leak diagnostic apparatus is basically provided with a pressure detecting device and a leak determining device. The pressure detecting device is configured and arranged to detect a pressure inside the evaporative emission control system, which includes the fuel tank (1). The leak determining device sets a leak determination threshold value in accordance with a deformation amount of the fuel tank (1), and determines if a leak exists by comparing the pressure inside the evaporative emission control system while the evaporative emission control system is sealed to the leak determination threshold value.
Inventors:
Shinsuke Takakura
Application Number:
JP2009015090A
Publication Date:
April 03, 2013
Filing Date:
January 27, 2009
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02M25/08
Domestic Patent References:
| JP2007138890A | ||||
| JP2003083176A | ||||
| JP2006274895A | ||||
| JP2007177655A | ||||
| JP2005002965A |
Attorney, Agent or Firm:
Masaki Goto
Masahiro Fujii
Yasunari Mita
Masaaki Iida
Masahiro Fujii
Yasunari Mita
Masaaki Iida