Resources Contact Us Home
Trouble diagnostics apparatus for fuel treatment system

Image Number 3 for United States Patent #7036354.

A pump module 30 is provided for introducing a negative pressure t a fuel tank 10. A tank's internal pressure at a time, upon which a steady-state pressure reaching time elapses after introduction of the negative pressure is started, is detected as a convergence value. It is determined whether or not there is a leak in a system including the fuel tank based on that convergence value. A space volume inside the fuel tank 10 is detected by an output produced by a fuel level gauge 12. The steady-state pressure reaching time is set based on the space volume.

  Recently Added Patents
Integrated circuit packaging system with coupling features and method of manufacture thereof
Reconfigurable barrel shifter and rotator
Recovering a database to any point-in-time in the past with guaranteed data consistency
Surround sound effects provided by cell phones
LED light
Method and system to generate finite state grammars using sample phrases
Feature-based autocorrection
  Randomly Featured Patents
High purity chromium metal by casting with controlled oxygen content
Vehicle wheel
Method for interconnecting conducting layers of an integrated circuit device
Ink cartridge for printer
Selectable one-way rocker clutch
Ski rack
Melt flow index determination in polymer process control
Lens array, exposure head, and image forming apparatus