U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method of connection to a spark plug pressure sensor

Patent 6948372 Issued on September 27, 2005. Estimated Expiration Date: Icon_subject January 8, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Integrated spark plug ignition coil with pressure sensor for an internal combustion engine
Patent #: 6119667
Issued on: 09/19/2000
Inventor: Boyer, et al.

Spark apparatus with pressure signal response amplification Patent #: 6668632
Issued on: 12/30/2003
Inventor: Ford ,   et al.

Inventors

Assignee

Application

No. 10754038 filed on 01/08/2004

US Classes:

73/714, Combined123/634, Having a specific ignition coil73/118.1Testing auxiliary unit

Examiners

Primary: Oen, William

Attorney, Agent or Firm

International Classes

G01L007/00
F02P011/00

Abstract

The 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.

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