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
Processing circuitry for use with a position sensor
LCD television set capable of external connection with application processor
Surface modification
Authentication platform and related method of operation
System and method for providing program recommendations through multimedia searching based on established viewer preferences
Control device of hybrid vehicle
  Randomly Featured Patents
Nucleic acid primers and probes for detecting oncogenic human papillomaviruses
Connector for joining two electrical connection assemblies
Magnetic rolls for electrostatic recording devices
Extruder plate for extruder inserts
Cast resin capacitor bushing having spacer members between the capacitor sections and method of making same
Photographic element containing a cyclic thioether compound
Computer security system
Bolt-on piston assembly
Power distribution bus with protection and alarming
Argon recovery from argon-oxygen-decarburization process waste gases