Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Engine spark plug grounding structure, grounding wiring apparatus, and grounding wiring method










Image Number 3 for United States Patent #7124725.

A grounding member made of a spring steel includes a hexagonal top with a through hole, contact pieces extending from straight sides of the hexagonal top, and a grounding strip brazed to one of the contact pieces. The grounding member attaches to a spark plug with a spark plug insulator passing through the through-hole. The contact pieces pressure contact a peripheral surface of a hexagonal nut of the spark plug. A grounding wire is connected to a negative electrode of a battery. Electric charges generated in a spark gap are returned to the battery negative electrode from an external electrode of the spark plug via a spark plug housing, the grounding member, and the grounding wire. If the spark plug is loosely fitted in an engine cylinder head, or even if some engine body components are aged, electric charges flow without problems, preventing reduction of discharging performance.








 
 
  Recently Added Patents
Supporting multiple channels of a single interface
Centralized behavioral information system
Stable pharmaceutical composition and methods of using same
Portable communication terminal, communication method and control program
Flexible organic light emitting device and manufacturing method thereof
Solid-state imaging apparatus
High-density fiber optic modules and module housings and related equipment
  Randomly Featured Patents
Mechanical jack transmission
End adapter for railcar pneumatic outlet
Ventilation grille structure
Continuously variable driving unit of a motor vehicle
Drive wheel assembly with high flotation tire for compaction vehicles
Stable aqueous novolac dispersion
Method and apparatus for selecting encoded video data for use during video recorder trick play operation
FHIT proteins and nucleic acids and methods based thereon
Rate of penetration sensor for oil drilling rigs
Polymer alloys, morphology and materials for environmental remediation