EP1308672A3 - Glow plug for diesel engine and method of manufacturing same - Google Patents

Glow plug for diesel engine and method of manufacturing same Download PDF

Info

Publication number
EP1308672A3
EP1308672A3 EP02017728A EP02017728A EP1308672A3 EP 1308672 A3 EP1308672 A3 EP 1308672A3 EP 02017728 A EP02017728 A EP 02017728A EP 02017728 A EP02017728 A EP 02017728A EP 1308672 A3 EP1308672 A3 EP 1308672A3
Authority
EP
European Patent Office
Prior art keywords
housing
press fit
diameter
secured
glow plug
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.)
Granted
Application number
EP02017728A
Other languages
German (de)
French (fr)
Other versions
EP1308672B1 (en
EP1308672A2 (en
Inventor
Arihito Bosch Automotive Systems Corp. Tanaka
Takashi Bosch Automotive Systems Corp. Aota
Toshitsugu Bosch Automotive Systems Corp. Miura
Jian Bosch Automotive Systems Corp. Zhao
Osamu Bosch Automotive Systems Corp. Sekiguchi
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.)
Bosch Corp
Original Assignee
Bosch Automotive Systems Corp
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 Bosch Automotive Systems Corp filed Critical Bosch Automotive Systems Corp
Publication of EP1308672A2 publication Critical patent/EP1308672A2/en
Publication of EP1308672A3 publication Critical patent/EP1308672A3/en
Application granted granted Critical
Publication of EP1308672B1 publication Critical patent/EP1308672B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F23Q2007/004—Manufacturing or assembling methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

A sufficient area is secured for a seat area 26 which is to be disposed in abutment against a cylinder head when the external diameter of a housing 20 (a fixture for mounting a glow plug on a cylinder head) is reduced while maintaining the internal diameter unchanged. A press fit region 24b is defined in an internal bore 24 of a housing 20 toward the distal end 20a, and a rear portion of a sheath 12 to which a ceramics heater 2 is secured is disposed as a press fit in the press fit region 24b to be secured therein. The sheath 12 has a portion 12b of an increased diameter which is inserted into the housing 20 and a portion 12a of a reduced diameter in which the ceramics heater 2 is contained and which projects externally. The internal bore 24 of the housing 20 has an opening 24e which is of a smaller diameter than the press fit region 24b, increasing the radial breadth of the seat area 26 formed on the front end face of the housing 20.
EP20020017728 2001-11-01 2002-08-08 Glow plug for diesel engine and method of manufacturing same Expired - Lifetime EP1308672B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001336796 2001-11-01
JP2001336796A JP3661632B2 (en) 2001-11-01 2001-11-01 Manufacturing method of glow plug for diesel engine

Publications (3)

Publication Number Publication Date
EP1308672A2 EP1308672A2 (en) 2003-05-07
EP1308672A3 true EP1308672A3 (en) 2006-08-30
EP1308672B1 EP1308672B1 (en) 2007-12-12

Family

ID=19151559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020017728 Expired - Lifetime EP1308672B1 (en) 2001-11-01 2002-08-08 Glow plug for diesel engine and method of manufacturing same

Country Status (3)

Country Link
EP (1) EP1308672B1 (en)
JP (1) JP3661632B2 (en)
DE (1) DE60223985T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005180855A (en) * 2003-12-22 2005-07-07 Bosch Automotive Systems Corp Ceramic heater type glow plug
KR100869713B1 (en) * 2007-08-10 2008-11-21 주식회사 유라테크 Manufacturing method of glow plug housing, glow plug housing, glow plug
JP5280877B2 (en) * 2009-02-03 2013-09-04 日本特殊陶業株式会社 Ceramic heater and glow plug
JP2013228123A (en) * 2012-04-25 2013-11-07 Ngk Spark Plug Co Ltd Glow plug

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039839A (en) * 1989-02-15 1991-08-13 Jidosha Kiki Co., Ltd. Diesel engine glow plug with self-temperature saturation characteristic and extended after-glow-time

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6446520A (en) * 1987-08-12 1989-02-21 Nippon Denso Co Resistance device for preheating plug of diesel engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5039839A (en) * 1989-02-15 1991-08-13 Jidosha Kiki Co., Ltd. Diesel engine glow plug with self-temperature saturation characteristic and extended after-glow-time

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 234 (M - 832) 30 May 1989 (1989-05-30) *

Also Published As

Publication number Publication date
JP2003139323A (en) 2003-05-14
DE60223985D1 (en) 2008-01-24
DE60223985T2 (en) 2008-12-04
EP1308672B1 (en) 2007-12-12
JP3661632B2 (en) 2005-06-15
EP1308672A2 (en) 2003-05-07

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