Corona ignition device and method for producing a corona ignition device
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F23Q-003/00
H01T-019/04
H01T-013/50
H01T-013/41
H01T-013/44
F02P-023/04
출원번호
US-0268226
(2014-05-02)
등록번호
US-9705293
(2017-07-11)
우선권정보
DE-10 2013 104 643 (2013-05-06)
발명자
/ 주소
Achtstätter, Tom
Stifel, Timo
Heilmann, Felizitas
Ruan, Ganghua
Bräuchle, Gerd
출원인 / 주소
BORGWARNER BERU SYSTEMS GMBH
대리인 / 주소
Bose McKinney & Evans LLP
인용정보
피인용 횟수 :
0인용 특허 :
2
초록▼
The invention relates to a corona ignition device, comprising a center electrode, an insulator surrounding the center electrode, a coil, which is connected to the center electrode, and a housing pipe, in which the coil is arranged. The housing pipe comprises a substrate layer and a conducting layer
The invention relates to a corona ignition device, comprising a center electrode, an insulator surrounding the center electrode, a coil, which is connected to the center electrode, and a housing pipe, in which the coil is arranged. The housing pipe comprises a substrate layer and a conducting layer arranged radially inwardly of the substrate layer. The conducting layer is made of a material having a greater electrical conductivity than the material of the substrate layer. The conducting layer has a thickness of at least 0.1 mm. Also disclosed is a method for producing a corona ignition device, in which, to produce the housing pipe, an inner pipe is inserted into an outer pipe. The invention also relates to a corona ignition device of which the coil is surrounded by a soft-magnetic shielding.
대표청구항▼
1. A corona ignition device, comprising: a center electrode;an insulator surrounding the center electrode;a coil connected to the center electrode;a housing pipe in which the coil is arranged, the housing pipe comprising a substrate layer and a conducting layer arranged radially inwardly of the subs
1. A corona ignition device, comprising: a center electrode;an insulator surrounding the center electrode;a coil connected to the center electrode;a housing pipe in which the coil is arranged, the housing pipe comprising a substrate layer and a conducting layer arranged radially inwardly of the substrate layer, the conducting layer being supported by the substrate layer to thereby form a composite tubular pipe, the conducting layer having a thickness of at least 0.1 mm and being made of a material having a greater electrical conductivity than the material of the substrate layer; andwherein the substrate layer of the housing pipe is produced from sheet metal, to which the conducting layer has been applied by roll cladding and a longitudinally extending weld secures the substrate layer and conducting layer in a tubular form. 2. The corona ignition device according to claim 1, wherein the conducting layer is made of copper or silver. 3. The corona ignition device according to claim 1, wherein the substrate layer is made of steel or a nickel-based alloy. 4. The corona ignition device according to claim 1, wherein the conducting layer is covered by a protective layer. 5. The corona ignition device according to claim 4, wherein the protective layer is a lacquer layer. 6. The corona ignition device according to claim 1, further comprising an intermediate layer arranged between the conducting layer and the substrate layer. 7. A method for producing a corona ignition device comprising the following steps: inserting a center electrode into an insulator and connecting the center electrode to a coil;arranging the coil in a housing pipe;fastening a mount of the insulator to a front end of the housing pipe; andfastening a closure piece to a rear end of the housing pipe;wherein the housing pipe is produced by inserting an inner pipe into an outer pipe, and wherein the inner pipe is formed of a material having a greater electrical conductivity or a lower coercive force than the material of the outer pipe; andsecuring the inner pipe and outer pipe together to form a composite pipe by changing the diameter of at least one of the inner and outer pipes after inserting the inner pipe into the outer pipe to thereby securely engage the inner and outer pipes with each other. 8. The method according to claim 7, wherein after or during the insertion of the inner pipe, the housing pipe is expanded, thereby increasing the outer diameter thereof. 9. The corona ignition device of claim 1 wherein the longitudinally extending weld secures together abutting longitudinal edges of the sheet metal substrate layer. 10. The corona ignition device of claim 1 wherein the longitudinally extending weld secures together overlapping edge portions of the sheet metal substrate layer. 11. A corona ignition device, comprising: a center electrode;an insulator surrounding the center electrode;a coil connected to the center electrode; anda housing pipe in which the coil is arranged, the housing pipe comprising an outer pipe having a substrate layer and an inner pipe having a conducting layer, the inner pipe being arranged radially inwardly of the outer pipe wherein at least one of the inner and outer pipes have had their diameter changed after positioning the inner pipe within the outer pipe to forcibly engage the inner and outer pipes together along an axial length of the inner and outer pipes and wherein the inner and outer pipes are secured together by the engagement of the inner and outer pipes along the axial length of the inner and outer pipes to thereby form a composite tubular pipe, the conducting layer having a thickness of at least 0.1 mm and being made of a material having a greater electrical conductivity than the material of the substrate layer. 12. The corona ignition device according to claim 11, wherein the conducting layer is made of copper or silver. 13. The corona ignition device according to claim 11, wherein the substrate layer is made of steel or a nickel-based alloy. 14. The corona ignition device according to claim 11, wherein the conducting layer is covered by a protective layer. 15. The corona ignition device according to claim 14, wherein the protective layer is a lacquer layer. 16. The corona ignition device according to claim 11, further comprising an intermediate layer arranged between the conducting layer and the substrate layer.
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이 특허에 인용된 특허 (2)
Visser, Barend; Kruger, Petrus Paulus, Ignition system.
Bassett Norris J. (Anderson IN) Boyer James A. (Anderson IN) Savage John B. (Indianapolis IN), Spark developing apparatus for internal combustion engines.
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