Resources Contact Us Home
Evaporated fuel treatment device for internal combustion engine

Image Number 5 for United States Patent #7213450.

A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.

  Recently Added Patents
Unified greetings for social media
Systems, methods and machine readable mediums for defining and executing new commands in a spreadsheet software application
E-check and e-commerce
Color adjustment device, image forming apparatus, and computer readable medium
Radio navigation
Periodic system wakeup to update state
Method of detecting early immune activation
  Randomly Featured Patents
Rerouting messages to parallel queue instances
Multiple trough coil car
Oxazolidinone compounds and method of using the same as a vasodilator
Method and apparatus for providing light having a selected polarization with an optical fiber
Method of depositing a copper seed layer which promotes improved feature surface coverage
Lighting devices with quantum electric/light power converters
Brassica sp. gene promoter highly expressed during tapetum development
Method for loading refuse into containers
Tungsten electrode sharpener
Collaborative organization analysis