Resources Contact Us Home
Fuel tank for an aircraft

Image Number 3 for United States Patent #7802753.

Unsafe electric energies can exist in aircraft fuel tanks as a result of static build-up or induced currents from lightning strikes. The invention provides an aircraft having a ground circuit 19 and including a fuel tank having a fuel probe circuit having its own ground circuit. Multiple discharge paths allow the safe discharge of electricity from the tank before it reaches levels where an arc, spark or other electric discharge, able to ignite fuel in the tank, could occur. The discharge paths all pass via a conductive foam having a relatively high impedance that allow static bleed, but does not significantly increase the risk of currents induced by lightning reaching levels at which an ignition-causing electrical discharge might occur. The foam is securely bonded to both the aircraft ground circuit and the fuel probe ground, the bonds having a large area of surface-to-surface contact.

  Recently Added Patents
Transferring storage devices within storage device testing systems
Single-stage PFC converter with constant voltage and constant current
Methods of saccharification of polysaccharides in plants
Washing machine
Treatment of influenza
Soybean cultivar BY0811143
Motion control system and X-ray measurement apparatus
  Randomly Featured Patents
System and method for tire pressure monitoring using CDMA tire pressure signals
Method and device for precise counting and measuring the particles
Apparatus for stimulating cell
Foamed products containing endothermic blowing agents and processes
Method and an arrangement for the folding and sealing of the longitudinal edge of a material web
Vehicle temperature control system
Numerical structure-analysis calculation system
Rowcrop machine guidance using ground penetrating radar
Semiconductor integrated circuit including circuit blocks and voltage controller