EP1558874A1 - Gehäuse für glühstiftkerzen aus kunststoff - Google Patents
Gehäuse für glühstiftkerzen aus kunststoffInfo
- Publication number
- EP1558874A1 EP1558874A1 EP03809685A EP03809685A EP1558874A1 EP 1558874 A1 EP1558874 A1 EP 1558874A1 EP 03809685 A EP03809685 A EP 03809685A EP 03809685 A EP03809685 A EP 03809685A EP 1558874 A1 EP1558874 A1 EP 1558874A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- glow
- plastic
- glow plug
- candle
- 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
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
Definitions
- the invention relates to a glow plug, in particular for fuel engines, consisting essentially of a housing, a radiator connected to the housing with a heating and control coil arranged in the glow tube and a connection bolt arranged in the housing for supplying power to the heating and control coil.
- fuel power machines especially diesel engines, require a heat source that preheats either the gas mixture, the intake air or the combustion chamber.
- Glow plugs are mostly used in motor vehicles. They protrude at least with part of the radiator into the burner clear the engine and heat it up at least before, during and after the start of the fuel engine.
- the glow plugs are generally constructed in such a way that they have a heating element which consists of a glow tube in which a filament embedded in magnesium oxide powder is arranged. This filament consists of a heating filament and a regulating filament and is connected at the top to the glow tube.
- the radiator is pressed into a metallic housing, the so-called candle housing.
- the electrical supply is via a central connection bolt with plug or screw connection. Ground connection is made via the housing.
- the electrical insulation from positive to negative contact is provided by an insulating washer.
- the object of the invention is to optimize the so-called candle housing.
- the essence and solution of the task is to design the candle housing as far as possible from plastic.
- the housings are made from a solid material by turning. Due to the small diameter of the candle housing, the process is very expensive.
- the plastic used here has different properties depending on which parts of the candle housing are replaced. On the one hand, it is temperature stable in order to survive the heat generated undamaged and on the other hand it has a high mechanical strength. For this purpose, it is preferably proposed to use fiber-reinforced plastics.
- a preferred embodiment has a two-part housing, the division taking place in the longitudinal direction of the longitudinal extent of the candle housing.
- the length of the candle housing is varied such that a plurality of glow plug lengths are covered with a few glow parts and a part that is matched to the length of the housing. It is advisable to create the part necessary for attaching the glow plug from metallic materials. This enables constant production and thus a reduction in costs and an improvement in quality.
- the candle housing is electrically insulated from the engine block, so that an insulating washer, as is known from the prior art, is unnecessary.
- Figure 1 A first embodiment of a glow plug, the plug housing is made entirely of plastic;
- Figure 2 Another embodiment of a glow plug, the plug housing is made of plastic and is formed in two parts and the area of the sealing cone is made of metal;
- Figure 3 shows a third embodiment of a glow plug according to the invention, the candle housing is formed in three parts;
- FIG. 4 A fourth embodiment of a glow plug according to the invention, the plug housing is made of plastic, is formed in two parts and the areas are thread and screwing aid made of metal.
- FIG. 1 shows a first exemplary embodiment of a glow plug 1.
- This glow plug comprises a candle housing 2 and a glow tube 3 protruding from the candle housing, in which heating and control filaments are not shown in the drawing.
- connection pin is provided within the candle housing, which is in electrical contact with the connection 4 and the heating and control coil inside the glow tube 3.
- a screw-in aid 5 is provided, which is designed as a hexagon in the drawings.
- the candle housing 2 shown in the drawing is completely made of plastic. This means that both the screwing aid and the rest of the part up to the glow tube 3 are made of plastic. This is preferably the part which is extrusion-coated around the connecting pin.
- the candle housing 2 in the cross-hatched areas is made of plastic, the lower part toward the glow tube 3 being made of metal (for thermal reasons).
- the candle housing 2 is designed in three parts.
- the housing is divided into three parts in the longitudinal direction, the part pointing towards the connection 4 being made of metal and the part pointing towards the glow tube 3 made of metal.
- the remaining part of the candle housing 2, shown cross-hatched in the drawing, is made of plastic.
- FIG. 4 An alternative embodiment to the aforementioned embodiment examples is shown in FIG. 4. It is provided here that only the part pointing towards the screwing aid 5 is made of metal, the remaining part, shown cross-hatched in the drawing, being made of plastic.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
- Fats And Perfumes (AREA)
- Polyesters Or Polycarbonates (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10249706 | 2002-10-25 | ||
DE10249706A DE10249706A1 (de) | 2002-10-25 | 2002-10-25 | Gehäuse für Glühstiftkerzen aus Kunststoff |
PCT/DE2003/001733 WO2004040194A1 (de) | 2002-10-25 | 2003-05-28 | Gehäuse für glühstiftkerzen aus kunststoff |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1558874A1 true EP1558874A1 (de) | 2005-08-03 |
EP1558874B1 EP1558874B1 (de) | 2008-12-10 |
Family
ID=32102977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03809685A Expired - Lifetime EP1558874B1 (de) | 2002-10-25 | 2003-05-28 | Gehäuse für glühstiftkerzen aus kunststoff |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1558874B1 (de) |
JP (1) | JP4204552B2 (de) |
AT (1) | ATE417230T1 (de) |
DE (2) | DE10249706A1 (de) |
WO (1) | WO2004040194A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2869392B1 (fr) * | 2004-04-27 | 2006-07-14 | Siemens Vdo Automotive Sas | Tete d'une bougie de prechauffage equipee d'un capteur de pression |
DE102007046808A1 (de) * | 2007-09-29 | 2009-04-02 | Man Diesel Se | Zündeinrichtung für ein gasförmiges Kraftstoff-Luftgemisch in Gasmotoren, Gas-Ottomotoren oder Dieselmotoren |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19920758C1 (de) * | 1999-05-05 | 2000-12-21 | Beru Ag | Glühkerze und Verfahren zur Herstellung derselben |
DE10117641C2 (de) * | 2001-04-09 | 2003-02-27 | Beru Ag | Stabglühkerze |
-
2002
- 2002-10-25 DE DE10249706A patent/DE10249706A1/de not_active Withdrawn
-
2003
- 2003-05-28 EP EP03809685A patent/EP1558874B1/de not_active Expired - Lifetime
- 2003-05-28 JP JP2004547361A patent/JP4204552B2/ja not_active Expired - Fee Related
- 2003-05-28 AT AT03809685T patent/ATE417230T1/de not_active IP Right Cessation
- 2003-05-28 WO PCT/DE2003/001733 patent/WO2004040194A1/de active Application Filing
- 2003-05-28 DE DE50310911T patent/DE50310911D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004040194A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1558874B1 (de) | 2008-12-10 |
DE10249706A1 (de) | 2004-05-13 |
JP2006504066A (ja) | 2006-02-02 |
DE50310911D1 (de) | 2009-01-22 |
ATE417230T1 (de) | 2008-12-15 |
WO2004040194A1 (de) | 2004-05-13 |
JP4204552B2 (ja) | 2009-01-07 |
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