Integrated spark plug ignition coil with pressure sensor for an internal combustion engine
Spark apparatus with pressure signal response amplification Patent #: 6668632
ApplicationNo. 10754038 filed on 01/08/2004
US Classes:73/714, Combined123/634, Having a specific ignition coil73/118.1Testing auxiliary unit
ExaminersPrimary: Oen, William
Attorney, Agent or Firm
AbstractThe present invention provides a spark plug coil and pressure sensor assembly for providing a spark to a cylinder of an internal combustion engine. The assembly comprises a spark plug configured for mounting in a cylinder and a pressure sensor associated with the spark plug configured to detect a pressure in the cylinder and generate a pressure signal in response thereto. The assembly includes a first electrically conductive ring connector configured to receive the pressure signal and a housing having a main axis and having at least one electrically conductive leaf spring member. The leaf spring member is configured to resiliently engage the first electrically conductive ring connector over a first predetermined circumferential angle relative to the main axis of the coil housing.