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
Digital microwave radio link with adaptive data rate
Apparatus and method of managing radio bearer in wireless communication system
Control device for radiation imaging apparatus and control method therefor
Method of measuring the flux of a soil gas
System for wireless local area network (WLAN) transmission and for coexistence of WLAN and another type of wireless transmission and methods thereof
Utility knife
Hydrostatic pad pressure modulation in a simultaneous double side wafer grinder
  Randomly Featured Patents
Total hip joint prostheses
Video display terminal or similar article
Disposable syringe
Surface mounted turbine-driven hair dryer
Device network and methods concerning cordless telecommunication
Divalent antibody fragments
Superconducting analog to digital converter type circuit
Modeling and using business rules
Dispenser for dispensing metered quantities of liquid from a container
Process for the preparation of dialkyl carbonate