EP1440497B1 - Verbindungsmittel für zündanlagen von brennkraftmaschinen - Google Patents
Verbindungsmittel für zündanlagen von brennkraftmaschinen Download PDFInfo
- Publication number
- EP1440497B1 EP1440497B1 EP02781138A EP02781138A EP1440497B1 EP 1440497 B1 EP1440497 B1 EP 1440497B1 EP 02781138 A EP02781138 A EP 02781138A EP 02781138 A EP02781138 A EP 02781138A EP 1440497 B1 EP1440497 B1 EP 1440497B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connecting means
- outer casing
- connecting device
- protective cap
- internal combustion
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 239000012777 electrically insulating material Substances 0.000 abstract 1
- 239000012858 resilient material Substances 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
- 230000037431 insertion Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/02—Details
- H01T13/04—Means providing electrical connection to sparking plugs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/02—Details
- H01T13/06—Covers forming a part of the plug and protecting it against adverse environment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/40—Sparking plugs structurally combined with other devices
- H01T13/44—Sparking plugs structurally combined with other devices with transformers, e.g. for high-frequency ignition
Definitions
- the invention relates to a connection means for ignition systems of internal combustion engines according to the preamble of claim 1.
- connection means for connecting an ignition coil to a spark plug through the use of a spark plug, an ignition cable and a spark plug.
- This protective cap which is usually made of a special rubber compound, is particularly endangered in today's internal combustion engines. Contributing in particular as a burdening circumstances that in today's engines, a motor encapsulation takes place and as a result, the cap experiences a high temperature load.
- a connecting means known having a protective cap, which is constructed at least two layers and an inner sheath of electrical insulating material and on the inner sheath directly adjacent outer sheath of electrically conductive material which is electrically connected to ground potential.
- a connecting means with a flexible elastomeric inner shell known.
- US 5,890,473 A It is known to apply the outer shell on the inner shell as a sprayed layer.
- JP-60 122279 A is known to perform the outer sheath as a braid.
- the connecting means for ignition systems of internal combustion engines according to the invention with the characterizing features of claim 1 has the advantage that the aforementioned shortcomings are avoided.
- the connecting means according to the features of claim 1 is formed.
- the protective cap is at least two layers constructed with an inner sheath of electrical insulating material and with a directly on the inner sheath outer sheath of electrically conductive material, which is electrically connected to ground potential. By direct contact of the outer shell on the inner jacket air pockets are avoided. With the formation of the outer sheath of conductive material and the contact with the ground potential of the inner sheath is despite electrical spacing on the plug shaft to the cylinder head electrically set directly to ground potential.
- the outer jacket is flexibly applied to the inner shell, so that the connecting means in the region of the terminals for contacting is expandable, without changing its electrical properties.
- a connection means 11 for ignition systems of internal combustion engines 12 has, as in the FIG. 1 shown, the following main features: a first terminal 13 for an ignition coil 14, a second terminal 16 for a spark plug 17, an only hinted drawn, the two terminals 13, 16 connecting electrical conductors 18, and one, the terminals 13, 16 and the Head 18 at least partially sheathing protective cap 19th
- the connecting means 11 is positioned in a shaft 21, also referred to as a candle niche, in a cylinder head 22 of the internal combustion engine 12.
- the spark plug 14 is recessed in a known manner and mounted in a stationary manner.
- the protective cap 19 has, as in the FIG. 2 is executed, one, the terminals 13 and the conductor 18 facing inner shell 23 and an outer shell 24 which connects in the radial direction directly, without gaps, to the inner shell 23.
- the inner jacket 23 is made of an electrical insulating material, preferably of a silicone-based elastomer. Also possible would be an elastic plastic in the manner of a thermoplastic elastomer.
- the inner shell 23 is applied in one operation by injection molding to the provided as inserts in an injection molding tool, connected to the conductor 18 terminals 13, 16 with a layer thickness of about 3 mm.
- the inner jacket 23 projects beyond the connections 13, 16 at the front-side openings in the form of a sleeve. Thereby mating plug of the ignition coil 14 and the spark plug 17, which are connected to the terminals 13, 16, partially enclosed and sealed.
- the outer shell 24 is, like the inner shell 23, flexible, so that it is resiliently expandable during insertion of the connecting means 11 on the mating connector of the ignition coil 14 and the spark plug 17 and the composite with the inner shell 23 remains unchanged.
- the outer jacket 24 is electrically conductive. He has, in its longitudinal course adjacent to the first terminal 13, three axially spaced, mutually parallel sealing rings 27, the cross-sectional areas taper to the free ends as far as that the free ends are deflectable.
- the sealing rings 27 are dimensioned in their radial extent so that they come into contact with the insertion of the connecting means 11 in the shaft 21 on an inner side 28 of the shaft 21 with slight excess and on the one hand a shaft seal 29 and on the other hand electrical contact points 31 to the lying at ground potential Cylinder head 22 of the internal combustion engine 12 form.
- the outer jacket 24 is preferably made of an electrically conductive, sprayed directly on the outside 26 of the inner shell 23 elastomer based on silicone, so that a gap, cohesive connection between the shells 23, 24 is formed.
- the outer sheath 24 could also be formed by an on the outside 26 close-fitting, up and spring-back braided shielding made of electrically conductive metal.
- outer jacket 24 from a shrink tube, a thin-walled plastic tube or the like.
- the outer jacket 24 it is important for the function of the outer jacket 24 that this is made of an electrically conductive material and in its mechanical properties such as the inner jacket 23 up and resiliency. Thus, the conditions are created that the intimate distance-free dressing between the sheath 23, 24 is maintained even during insertion operations of the connecting means 11.
- the outer side 26 of the inner jacket 23 is electrically connected directly to the ground potential of the cylinder head 22 of the internal combustion engine 12 as the outer terminating layer of the electrical insulator of the connecting means 11, so that no intermediate insulating layers such as air gaps occur on this electrical path.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Spark Plugs (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10152085A DE10152085A1 (de) | 2001-10-23 | 2001-10-23 | Verbindungsmittel für Zündanlagen von Brennkraftmaschinen |
DE10152085 | 2001-10-23 | ||
PCT/DE2002/003961 WO2003038958A1 (de) | 2001-10-23 | 2002-10-21 | Verbindungsmittel für zündanlagen von brennkraftmaschinen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1440497A1 EP1440497A1 (de) | 2004-07-28 |
EP1440497B1 true EP1440497B1 (de) | 2011-06-29 |
Family
ID=7703305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02781138A Expired - Lifetime EP1440497B1 (de) | 2001-10-23 | 2002-10-21 | Verbindungsmittel für zündanlagen von brennkraftmaschinen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6932627B2 (ja) |
EP (1) | EP1440497B1 (ja) |
JP (1) | JP4348184B2 (ja) |
DE (1) | DE10152085A1 (ja) |
WO (1) | WO2003038958A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7594489B1 (en) * | 2007-01-19 | 2009-09-29 | Marshall Electric Corp. | High voltage extender |
DE102010063508A1 (de) * | 2010-12-20 | 2012-06-21 | Robert Bosch Gmbh | Zündspule mit Anbindungsvorrichtung |
US9923300B2 (en) * | 2016-05-18 | 2018-03-20 | Marshall Electric Corp. | Semi-rigid high-voltage extender |
US10008830B2 (en) * | 2016-05-18 | 2018-06-26 | Marshall Electric Corp. | High-voltage extender for connecting a spark plug to a high-voltage source |
CN107332109A (zh) * | 2017-04-26 | 2017-11-07 | 周向进 | 一种喷火的火花塞及其内燃机和汽车 |
DE102018108292B4 (de) * | 2017-11-17 | 2023-05-11 | Borgwarner Ludwigsburg Gmbh | Verbindungsstecker zum Anschließen einer Zündspule an eine Zündkerze sowie Schutzrohr für einen Verbindungsstecker |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2987587A (en) * | 1959-07-16 | 1961-06-06 | Hallett Mfg Company | Electrically shielded cap for a unit of the ignition system of internal-combustion engines |
JPS60122279A (ja) * | 1983-12-05 | 1985-06-29 | Ngk Spark Plug Co Ltd | 点火装置における雑音防止装置 |
US5890473A (en) * | 1996-02-06 | 1999-04-06 | Robert Bosch Gmbh | Ignition device for a multi-cylinder internal combustion engine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4423624A (en) * | 1982-02-24 | 1984-01-03 | Creative Tool Company | Diesel timing light |
DE3544870A1 (de) | 1985-12-18 | 1987-06-19 | Beru Werk Ruprecht Gmbh Co A | Zuendkerzenstecker |
JPH08144918A (ja) | 1994-11-17 | 1996-06-04 | Sumitomo Wiring Syst Ltd | 内燃機関用点火装置 |
DE19509793C2 (de) * | 1995-03-17 | 1997-04-30 | Audi Ag | Zündkerzenstecker |
DE69723337T2 (de) | 1996-03-21 | 2004-04-15 | Hitachi, Ltd. | Zündapparat für eine Brennkraftmaschine |
DE19612508C2 (de) * | 1996-03-29 | 2000-05-04 | Bremi Auto Elektrik Ernst Brem | Verbindungsstecker |
-
2001
- 2001-10-23 DE DE10152085A patent/DE10152085A1/de not_active Ceased
-
2002
- 2002-10-21 JP JP2003541106A patent/JP4348184B2/ja not_active Expired - Fee Related
- 2002-10-21 US US10/433,079 patent/US6932627B2/en not_active Expired - Fee Related
- 2002-10-21 WO PCT/DE2002/003961 patent/WO2003038958A1/de active Application Filing
- 2002-10-21 EP EP02781138A patent/EP1440497B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2987587A (en) * | 1959-07-16 | 1961-06-06 | Hallett Mfg Company | Electrically shielded cap for a unit of the ignition system of internal-combustion engines |
JPS60122279A (ja) * | 1983-12-05 | 1985-06-29 | Ngk Spark Plug Co Ltd | 点火装置における雑音防止装置 |
US5890473A (en) * | 1996-02-06 | 1999-04-06 | Robert Bosch Gmbh | Ignition device for a multi-cylinder internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
US20040065286A1 (en) | 2004-04-08 |
JP4348184B2 (ja) | 2009-10-21 |
US6932627B2 (en) | 2005-08-23 |
EP1440497A1 (de) | 2004-07-28 |
WO2003038958A1 (de) | 2003-05-08 |
DE10152085A1 (de) | 2003-04-30 |
JP2005507057A (ja) | 2005-03-10 |
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