PLUG WITH BUILT-IN PRESSURE SENSOR

Title:

PLUG WITH BUILT-IN PRESSURE SENSOR

Document Type and Number:

Japanese Patent JP2002231413

Kind Code:

A

Abstract:

To provide a plug with built-in pressure sensor capable of improving production efficiency by efficiently arranging a lead wire for taking outside electric output generated from a piezoelectric element on the basis of cylinder internal pressure.

Lead wire housing parts 11g and 11h arranged in the axial direction of a plug body 10 for taking out the lead wire 27 to the rear side, are respectively formed in an installing seat part 11c and a tool engaging part 11d. These lead wire housing parts 11g and 11h have respectively slit-like openings 11j and 11k on the outer peripheral edge, and are arranged in almost corresponding positions in the circumferential direction. Thus, the lead wire 27 can be easily housed in the lead wire housing parts 11g and 11h from the outside via the slit-like openings 11j and 11k, and the production efficiency is remarkably improved.

Inventors:

OKAZAKI KOJI
MATSUI MASAYOSHI
SUZUKI TAKAHIRO

Application Number:

JP2001024433A

Publication Date:

August 16, 2002

Filing Date:

January 31, 2001

Export Citation:

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Assignee:

NGK SPARK PLUG CO

International Classes:

G01L23/10; F02P13/00; G01L23/22; H01T13/40; (IPC1-7): H01T13/40; F02P13/00; G01L23/10; G01L23/22

Attorney, Agent or Firm:

Masanori Sugawara

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