EP0826927A1 - Bougie-crayon à incandescence - Google Patents

Bougie-crayon à incandescence Download PDF

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Publication number
EP0826927A1
EP0826927A1 EP97111620A EP97111620A EP0826927A1 EP 0826927 A1 EP0826927 A1 EP 0826927A1 EP 97111620 A EP97111620 A EP 97111620A EP 97111620 A EP97111620 A EP 97111620A EP 0826927 A1 EP0826927 A1 EP 0826927A1
Authority
EP
European Patent Office
Prior art keywords
glow
glow tube
ceramic disc
tube
disc
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
EP97111620A
Other languages
German (de)
English (en)
Other versions
EP0826927B1 (fr
Inventor
Werner Teschner
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0826927A1 publication Critical patent/EP0826927A1/fr
Application granted granted Critical
Publication of EP0826927B1 publication Critical patent/EP0826927B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the present invention is based on a glow plug which consists of a candle housing with a connecting device for the glow current and with a glow tube fastened to the candle housing and closed on its side facing away from the candle housing.
  • a glow plug which consists of a candle housing with a connecting device for the glow current and with a glow tube fastened to the candle housing and closed on its side facing away from the candle housing.
  • a helical arrangement is introduced which is embedded in an insulating material.
  • the helical arrangement is connected on the one hand to the connection device and on the other hand connected to ground via the closed bottom of the glow tube, so that the glow current flows from the connection device via the helical arrangement to the glow tube and then via the housing to ground.
  • an insulating ring is inserted between the glow tube wall and the connecting device, the connecting bolt, which takes over a sealing function after the hammering process, which brings the glow tube into the final shape and compresses the insulating material.
  • a second seal is located between the connecting bolt and the housing.
  • the glow plug according to the invention has compared to that Known the advantage that by using a single ceramic disc using friction welding with Glow tube and connecting bolt is connected, a gas-tight and temperature-resistant connection. At long last a second seal can be omitted, which with regard to the Cost is particularly advantageous.
  • Figure 1 shows a first basic design of Glow tube connection bolt and ceramic disc and Figure 2 a second design with additional aluminum discs.
  • Figure 1 shows a section of the glow plug with the basic arrangement of the glow tube 10, the Connection bolt 12 and the ceramic disc 13.
  • the Connection bolt 12 is in a part located in the glow tube 12a and a part 12b located outside the glow tube divided.
  • the part 12a of the glow tube The connecting bolt has a larger diameter than that part 12b of the outside of the glow tube Connecting bolt.
  • the ceramic disc 13 has a central Breakthrough through which the connecting bolt passes is.
  • the diameter of the opening 14 is smaller than the outside diameter of the part in the glow tube 12a of the connecting bolt and larger than the outer diameter of the part 12b of the outside of the glow tube Connecting bolt.
  • the connection of glow tube 10, Ceramic disc 13 and connecting bolt 12a is made by Friction welding.
  • Figure 2 shows an embodiment of the connection for sealing of the glow tube as in Figure 1, the same parts with are provided with the same reference numerals.
  • this version 2 is on the ceramic disc 13 on the side, which faces the glow tube, recesses are provided in the one aluminum layer 15, which is disc-shaped the ceramic disc can be vapor-deposited.
  • Both disc-shaped aluminum layers have essentially the shape of a circular ring
  • the inner Disc has an outer diameter that only slightly larger than the outside diameter of the Connection bolt 12a is.
  • the outer disc in turn has an inner diameter that is only slightly smaller than the inner diameter of the glow tube 10.
  • the ceramic disc 13 with aluminum is provided, which in turn causes a better one Connection of glow tube and ceramic or of connecting bolts and ceramics are created.
  • an aluminum layer can be evaporated be put on or an aluminum disc.
  • the thickness of an aluminum layer is advantageously between 0.2 and 0.5 mm. Both discs are not allowed touch, otherwise an insulation of the connecting bolt compared to the glow tube is not guaranteed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
EP97111620A 1996-08-08 1997-07-09 Bougie-crayon à incandescence Expired - Lifetime EP0826927B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19631973 1996-08-08
DE19631973A DE19631973A1 (de) 1996-08-08 1996-08-08 Glühstiftkerze

Publications (2)

Publication Number Publication Date
EP0826927A1 true EP0826927A1 (fr) 1998-03-04
EP0826927B1 EP0826927B1 (fr) 2002-07-24

Family

ID=7802093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111620A Expired - Lifetime EP0826927B1 (fr) 1996-08-08 1997-07-09 Bougie-crayon à incandescence

Country Status (3)

Country Link
EP (1) EP0826927B1 (fr)
JP (1) JPH1073252A (fr)
DE (2) DE19631973A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013068481A1 (fr) * 2011-11-09 2013-05-16 Miyachi Europe GmbH Élément isolant électrique en matériau céramique pour dispositif d'usinage électrique et dispositif d'usinage correspondant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625318A1 (de) * 1975-07-09 1977-01-27 Emerson Electric Co Gluehkerzen
DE2602427A1 (de) * 1976-01-23 1977-07-28 Braun Ag Kartusche als brennstoffbehaelter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625318A1 (de) * 1975-07-09 1977-01-27 Emerson Electric Co Gluehkerzen
DE2602427A1 (de) * 1976-01-23 1977-07-28 Braun Ag Kartusche als brennstoffbehaelter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013068481A1 (fr) * 2011-11-09 2013-05-16 Miyachi Europe GmbH Élément isolant électrique en matériau céramique pour dispositif d'usinage électrique et dispositif d'usinage correspondant
CN103930232A (zh) * 2011-11-09 2014-07-16 米亚基欧洲有限责任公司 用于电加工装置的、陶瓷材料做的电绝缘元件，相应的加工装置

Also Published As

Publication number Publication date
JPH1073252A (ja) 1998-03-17
DE19631973A1 (de) 1998-02-19
DE59707777D1 (de) 2002-08-29
EP0826927B1 (fr) 2002-07-24

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