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WO2005026619A1 - Bougie de prechauffage a element de contact specialement encastre - Google Patents

Bougie de prechauffage a element de contact specialement encastre Download PDF

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Publication number
WO2005026619A1
WO2005026619A1 PCT/DE2004/001308 DE2004001308W WO2005026619A1 WO 2005026619 A1 WO2005026619 A1 WO 2005026619A1 DE 2004001308 W DE2004001308 W DE 2004001308W WO 2005026619 A1 WO2005026619 A1 WO 2005026619A1
Authority
WO
WIPO (PCT)
Prior art keywords
glow plug
contact element
housing
plug according
plastic sleeve
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.)
Ceased
Application number
PCT/DE2004/001308
Other languages
German (de)
English (en)
Inventor
Christoph Haluschka
Rainer Bach
Peter Sossinka
Alexander Klonczynski
Laurent Jeannel
Andreas Gaiser
Susanne Blank
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
Priority to BRPI0413442-7A priority Critical patent/BRPI0413442A/pt
Priority to EP04738757.6A priority patent/EP1660817B1/fr
Priority to US10/569,220 priority patent/US20070084845A1/en
Priority to JP2006521383A priority patent/JP2006528761A/ja
Publication of WO2005026619A1 publication Critical patent/WO2005026619A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition

Definitions

  • the invention relates to a glow plug for a fuel engine, consisting of a candle housing, a connector part arranged on the plug housing for the electrical
  • Electricity and a pen heater usually a pipe with an embedded heating element.
  • the connecting part and the heating element are electrically coupled via a connecting bolt and a contact element.
  • the contact element forms the so-called positive contact with the connection bolt and the connection area of the pin heater inside the housing.
  • the invention relates in particular to designs in which the contact is produced by an elastic conductor element, such as a graphite jolette.
  • ceramic adapter sleeves are used for insulation and fixation. These cover the connecting bolt and the graphite tablet and thus prevent contact with the housing. At the same time, they ensure that the contact element remains in a defined position in which good contact with the pin heater or with the heating element is ensured.
  • Glow plugs with small diameters are often required. Since the electrical properties are determined by the pin heater and the connecting bolt or their dimensions, there is little space between the connecting bolt and the housing.
  • the clamping sleeves must therefore be manufactured with a small wall thickness, which is associated with high manufacturing and cost expenditure for ceramic materials.
  • the object of the invention is to propose a glow plug which shows a stable fixation of the contact element and in which the fixation and insulation of the contact element can be produced inexpensively.
  • the solution to the problem is that the connecting bolt and the contact element are at least partially surrounded by an electrically insulating plastic sleeve within the housing.
  • a sleeve preferably a plastic adapter sleeve
  • very simple electrical insulation from the housing is achieved.
  • the plastic sleeves have the advantage over ceramic sleeves that they can be manufactured more simply and therefore more cost-effectively. This applies in particular to sleeves with thin walls, as are often required in glow plugs.
  • Plastics can provide good insulation even with thin walls and are at the same time robust enough to withstand further processing steps. If, for example, a support tube surrounding the heating element is connected to the housing, which is done by pressing, hammering, soldering or welding, strong forces sometimes also act on the plastic sleeve.
  • Plastic sleeves can easily be of various dimensions and
  • Molds are made.
  • An advantageous embodiment is the production of the plastic sleeve as an adapter sleeve.
  • the contact element To make good contact, the contact element must have as large an area as possible on the heating element and the connecting bolt. couple the zen. For a tubular component such as the glow plug, a cylindrical shape of the contact element is therefore appropriate. In order to ensure adequate insulation from the housing, the plastic sleeve must therefore completely surround the cylinder jacket.
  • plastics can also be provided with elastic properties.
  • the plastic sleeve has an elasticity in the radial and or longitudinal direction. The elasticity increases the robustness of the component and reduces the likelihood of breakage during assembly or during loads during operation.
  • the plastic sleeve can be made in one piece or, in a further advantageous embodiment, also in multiple pieces. The individual parts can then be combined in a modular principle for glow plugs of different types.
  • Figure 1 is a schematic representation of part of a glow plug, in section. Description of the embodiment
  • This glow plug 1 shows the parts of a glow plug 1 on which the invention is based.
  • This glow plug 1 consists of a plug housing 2 and a connection area 3 of a pin heater 4, not shown.
  • connection bolt 5 is provided within the housing 2.
  • a contact element 6 is provided between these two elements. This is preferably elastic.
  • Such a contact element 6 can be, for example, a graphite tablet.
  • a plastic sleeve 7 is inserted into the housing 2 according to the invention, within which the connecting pin 4 is arranged.
  • This plastic sleeve 7 can be easily and inexpensively manufactured with a small wall thickness 8.
  • a recess 9 is provided in the connection area 3, into which the contact element 6 can be inserted at least in part.
  • the sleeve 7 is preferably formed in one piece. It is designed as an adapter sleeve and thus lies against the inner wall 10 of the housing 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

L'invention concerne une bougie de préchauffage (1) pour moteur à combustion interne, comprenant une enveloppe (2), un élément de connexion électrique disposé sur l'enveloppe (2), ainsi qu'un dispositif de chauffage à tige (4) qui est généralement formé d'un tube avec un élément de chauffage encastré. L'élément de connexion et l'élément de chauffage sont couplés électriquement, via un boulon connecteur (5) et un élément de contact (6). L'invention est caractérisée en ce que le boulon connecteur (5) et l'élément de contact (6) sont entourés, au moins partiellement, à l'intérieur de l'enveloppe (2), par un manchon en matière plastique isolé électriquement (7).
PCT/DE2004/001308 2003-08-28 2004-06-23 Bougie de prechauffage a element de contact specialement encastre Ceased WO2005026619A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BRPI0413442-7A BRPI0413442A (pt) 2003-08-28 2004-06-23 vela de incandescência com elemento de contato especialmente incorporado
EP04738757.6A EP1660817B1 (fr) 2003-08-28 2004-06-23 Bougie de prechauffage a element de contact specialement encastre
US10/569,220 US20070084845A1 (en) 2003-08-28 2004-06-23 Sheated-element glow plug having a particularly embedded contact element
JP2006521383A JP2006528761A (ja) 2003-08-28 2004-06-23 特に埋設されたコンタクトエレメントを備えたシーズ形グロープラグ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10339641.1 2003-08-28
DE10339641A DE10339641A1 (de) 2003-08-28 2003-08-28 Glühstiftkerze mit besonders eingebettetem Kontaktelement

Publications (1)

Publication Number Publication Date
WO2005026619A1 true WO2005026619A1 (fr) 2005-03-24

Family

ID=34202148

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/001308 Ceased WO2005026619A1 (fr) 2003-08-28 2004-06-23 Bougie de prechauffage a element de contact specialement encastre

Country Status (7)

Country Link
US (1) US20070084845A1 (fr)
EP (1) EP1660817B1 (fr)
JP (1) JP2006528761A (fr)
KR (1) KR20060125690A (fr)
BR (1) BRPI0413442A (fr)
DE (1) DE10339641A1 (fr)
WO (1) WO2005026619A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3025153B1 (fr) * 2014-09-01 2016-12-09 Bosch Gmbh Robert Bougie de prechauffage
DE102014220036A1 (de) 2014-10-02 2016-04-07 Robert Bosch Gmbh Glühstiftkerze

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103775A2 (fr) * 1982-08-26 1984-03-28 Robert Bosch Gmbh Bougie d'allumage à tige incandescente pour moteur à combustion interne
WO1986001878A1 (fr) * 1984-09-21 1986-03-27 Robert Bosch Gmbh Bougie-crayon de chauffage pour moteurs a combustion interne
DE3621216A1 (de) * 1985-06-27 1987-02-05 Jidosha Kiki Co Gluehkerze fuer dieselmaschinen
EP0798515A2 (fr) * 1996-03-29 1997-10-01 Cooper Industries Italia S.p.A. Bougies à incandescence, en particulier pour moteurs Diesel
DE10020328A1 (de) * 1999-08-27 2001-03-01 Bosch Gmbh Robert Keramische Glühstiftkerze

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335292A1 (de) * 1993-10-15 1995-04-20 Beru Werk Ruprecht Gmbh Co A Glühkerze
JPH10208853A (ja) * 1996-11-19 1998-08-07 Ngk Spark Plug Co Ltd セラミックヒータ、およびその製造方法
WO2001016528A1 (fr) * 1999-08-27 2001-03-08 Robert Bosch Gmbh Bougie crayon de prechauffage en ceramique
PL347434A1 (en) * 1999-08-27 2002-04-08 Bosch Gmbh Robert Ceramic sheathed element glow plug
EP1162407B1 (fr) * 2000-08-11 2002-01-30 Federal-Mogul Ignition Srl Bougie à incandescence pour des moteurs à combustion interne
US7115836B2 (en) * 2004-06-29 2006-10-03 Ngk Spark Plug Co., Ltd. Glow plug

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103775A2 (fr) * 1982-08-26 1984-03-28 Robert Bosch Gmbh Bougie d'allumage à tige incandescente pour moteur à combustion interne
WO1986001878A1 (fr) * 1984-09-21 1986-03-27 Robert Bosch Gmbh Bougie-crayon de chauffage pour moteurs a combustion interne
DE3621216A1 (de) * 1985-06-27 1987-02-05 Jidosha Kiki Co Gluehkerze fuer dieselmaschinen
EP0798515A2 (fr) * 1996-03-29 1997-10-01 Cooper Industries Italia S.p.A. Bougies à incandescence, en particulier pour moteurs Diesel
DE10020328A1 (de) * 1999-08-27 2001-03-01 Bosch Gmbh Robert Keramische Glühstiftkerze

Also Published As

Publication number Publication date
BRPI0413442A (pt) 2006-10-17
DE10339641A1 (de) 2005-03-24
EP1660817A1 (fr) 2006-05-31
JP2006528761A (ja) 2006-12-21
EP1660817B1 (fr) 2017-03-15
KR20060125690A (ko) 2006-12-06
US20070084845A1 (en) 2007-04-19

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