JPS5758018A - Sheathed glow plug - Google Patents

Sheathed glow plug

Info

Publication number
JPS5758018A
JPS5758018A JP13187680A JP13187680A JPS5758018A JP S5758018 A JPS5758018 A JP S5758018A JP 13187680 A JP13187680 A JP 13187680A JP 13187680 A JP13187680 A JP 13187680A JP S5758018 A JPS5758018 A JP S5758018A
Authority
JP
Japan
Prior art keywords
metal tubing
heating element
insulator
powdered
sheathed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13187680A
Other languages
Japanese (ja)
Inventor
Shinichi Yokoi
Tsuneo Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Tokushu Togyo KK
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
Nippon Tokushu Togyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Spark Plug Co Ltd, Nippon Tokushu Togyo KK filed Critical NGK Spark Plug Co Ltd
Priority to JP13187680A priority Critical patent/JPS5758018A/en
Publication of JPS5758018A publication Critical patent/JPS5758018A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To enable to quickly and smoothly red-heat from the tip part of a sheathed heating element so as to rapidly attain to the ignition temperature by a method wherein the gap between the coiled heating element and the inner wall surface of a metal tubing is so arranged as to gradually become smaller from the rear end to near the tip of the metal tubing. CONSTITUTION:A bar insulator 5 is moulded to the size, which can be housed in the spece inside the coil of the heating element 2, with the same material as powdered insulator 3 to be filled among the coiled heating element, for example with powdered magnesia, and yet the hardness of the moulded insulator 5 is so controlled as to gradually become harder from the rear end of an electrode shaft to near the bottom 4 of the metal tubing 1. Said bar insulator 5 is housed in the coiled heating element 2. Then the element 2 is put in the metal tubing 1 and filled with the powdered insulator 3 thereamong in the metal tubing 1. After that, said metal tubing 1 is subjected to the swaging so as to be formed as the sheathed glow plug.
JP13187680A 1980-09-23 1980-09-23 Sheathed glow plug Pending JPS5758018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13187680A JPS5758018A (en) 1980-09-23 1980-09-23 Sheathed glow plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13187680A JPS5758018A (en) 1980-09-23 1980-09-23 Sheathed glow plug

Publications (1)

Publication Number Publication Date
JPS5758018A true JPS5758018A (en) 1982-04-07

Family

ID=15068200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13187680A Pending JPS5758018A (en) 1980-09-23 1980-09-23 Sheathed glow plug

Country Status (1)

Country Link
JP (1) JPS5758018A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008261577A (en) * 2007-04-13 2008-10-30 Ngk Spark Plug Co Ltd Glow plug and its manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008261577A (en) * 2007-04-13 2008-10-30 Ngk Spark Plug Co Ltd Glow plug and its manufacturing method

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