EP0167510A2 - Zündvorrichtung mit Oscillatorkreis - Google Patents

Zündvorrichtung mit Oscillatorkreis Download PDF

Info

Publication number: EP0167510A2
Authority: EP; European Patent Office
Prior art keywords: winding; primary; circuit; core; spark
Prior art date: 1984-07-05
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

EP85850225A

Other languages

English (en)

French (fr)

Other versions

EP0167510A3 (en

EP0167510B1 (de

Inventor

Lars Efraimsson

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.)

Svenska Electromagneter AB

Original Assignee

Svenska Electromagneter AB

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.)

1984-07-05

Filing date

1985-07-01

Publication date

1986-01-08

1985-07-01 Application filed by Svenska Electromagneter AB filed Critical Svenska Electromagneter AB

1985-07-01 Priority to AT85850225T priority Critical patent/ATE43433T1/de

1986-01-08 Publication of EP0167510A2 publication Critical patent/EP0167510A2/de

1987-05-27 Publication of EP0167510A3 publication Critical patent/EP0167510A3/en

1989-05-24 Application granted granted Critical

1989-05-24 Publication of EP0167510B1 publication Critical patent/EP0167510B1/de

Status Expired legal-status Critical Current

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Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks

Definitions

the present invention relates to an improvement of the types of apparatus mentioned above, and as will be understood, voltages for the open, i.e. broken, circuit can be kept within values which allow considerably simpler insulation of the high-tension section than previously, due to a special implementation of the transformer section itself. Furthermore, the circuit is such that short-circuiting of the sparking side does not result in injurious action on the participating circuit components.
Two interference-suppressing choke coils or chokes 3,4 are connected to the terminals 1, 2 in an A.C. mains.
a rectifier 5 in communication with an interference-suppressing capacitor 6, the other end of which is connected to the free end of the choke 4.
the rectifier 5 is in series with a primary winding comprising two parts 7,8 of an ignition transformer 9, an oscillating circuit capacitor 10 being connected right across both primary windings, the free end of the winding part 8 also being connected to an oscillation energy generating circuit 11 forming part of an oscillator, as will be made clear later.
the circuit 11 is in communication with the choke 4 and the capacitor 6, thus forming one path in the circuit of the apparatus.
the ignition transformer 9 is provided with a secondary winding 12 which is in communication with electrodes 13,14 forming a spark gap 15.
a feed-back coil 16 for controlling the circuit 11 is also associated with the ignition transformer core, the coil 16 being in current supplying connection with the rectifier 5 via a resistor 17 and a further resistor 18, at the connection point between the resistors 17 and 18 there being connected a capacitor 19 which is in communication with the choke 4.
the elements 19-16 within the dashed line 20 form the oscillator of the circuit.
the device operates in the following way:
the primary winding is divided into two part windings 7,8 which are geometrically separated and coupled in series.
the primary winding part 7 is strongly magnetically coupled to the secondary winding 12 while the primary winding part 8 is strongly magnetically coupled to the feed-back winding 16.
a less strong coupling consequently exists between the winding part 8 and the primary winding 12.
the coupling condition described constitutes an oscillation circuit including the primary winding parts 7,8 together with the load on the secondary winding 12 and the capacitor 10. This oscillation circuit, by geometrical conditions, is such that the reverse voltage towards e.g.
transistors in the circuit 11 is kept at a suitable level for all loadings in question, i.e. substantially constant, and there is further achieved that the output voltage is given a suitable load dependence, i.e. it can be kept under control for an open circuit. There is furthermore achieved that the feed-back winding will be independent of load to a substantial extent.
the divided primary winding also results in that the output voltage from the secondary side is kept at a uniform level during the half period of the mains frequency, which means that maximum secondary voltage is already obtained at a very early stage of the voltage half period and is thereafter kept at a substantially constant level.
a series of spark voltages occur which are so close to each other in time that spark gap ionisation does not normally have time to cease, resulting in the occurrence of an essentially homogenous discharge for each half period the oscillator is in operation.
the ignition transformer in one embodiment is built as is apparent from Figure 2.
a core 9 of a magnetically conductive material e.g. ferrite or the like
a long winding closely coupled to the core and extending substantially along the entire length of the core, this winding being the winding 7 in the diagram according to Figure 1.
a winding bobbin carrying the secondary winding 12, which lengthwise in relation to the core only takes up about two-thirds of the core length.
the part winding 8 On the remaining third and laterally in relation to the secondary winding 12 there is arranged the part winding 8, which is thus situated outside the winding 7.
the feed-back winding 16 is arranged to one side of the part winding 8.
the relationship between the windings 7 and 8 is such that the winding 8 has about half the turns of the winding 7.

Landscapes

Engineering & Computer Science (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Generation Of Surge Voltage And Current (AREA)
Regulation And Control Of Combustion (AREA)
Ignition Installations For Internal Combustion Engines (AREA)
Control Of Eletrric Generators (AREA)
Ac-Ac Conversion (AREA)
Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Electrophonic Musical Instruments (AREA)
Oscillators With Electromechanical Resonators (AREA)
Plasma Technology (AREA)

EP85850225A 1984-07-05 1985-07-01 Zündvorrichtung mit Oscillatorkreis Expired EP0167510B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT85850225T ATE43433T1 (de)	1984-07-05	1985-07-01	Zuendvorrichtung mit oscillatorkreis.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8403584A SE443220B (sv)	1984-07-05	1984-07-05	Anordning vid gnistgeneratorer
SE8403584		1984-07-05

Publications (3)

Publication Number	Publication Date
EP0167510A2 true EP0167510A2 (de)	1986-01-08
EP0167510A3 EP0167510A3 (en)	1987-05-27
EP0167510B1 EP0167510B1 (de)	1989-05-24

Family

ID=20356460

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP85850225A Expired EP0167510B1 (de)	1984-07-05	1985-07-01	Zündvorrichtung mit Oscillatorkreis

Country Status (4)

Country	Link
EP (1)	EP0167510B1 (de)
AT (1)	ATE43433T1 (de)
DE (2)	DE3570512D1 (de)
SE (1)	SE443220B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0801267A3 (de) *	1996-04-10	1999-09-01	Brahma S.p.A.	Zündvorrichtung für Brenner mit Unterdrückung von Hochfrequenzstörungen
EP0957316A3 (de) *	1998-05-12	2000-05-31	Miller Europe S.p.A.	Elektrischer Gasanzünder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1392983A (fr) *	1964-04-29	1965-03-19	Rowenta Metallwarenfab Gmbh	Briquet à gaz à allumage par étincelles
IT1060399B (it) *	1975-12-31	1982-07-10	O F R Officine Fratelli Riello	Apparecchiatura di comando per bruciatore a combustibile liquido
US4358813A (en) *	1980-11-20	1982-11-09	Matsushita Electric Industrial Co., Ltd.	Ignition apparatus for a burner

1984
- 1984-07-05 SE SE8403584A patent/SE443220B/sv not_active IP Right Cessation
1985
- 1985-07-01 DE DE8585850225T patent/DE3570512D1/de not_active Expired
- 1985-07-01 AT AT85850225T patent/ATE43433T1/de not_active IP Right Cessation
- 1985-07-01 DE DE198585850225T patent/DE167510T1/de active Pending
- 1985-07-01 EP EP85850225A patent/EP0167510B1/de not_active Expired

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0801267A3 (de) *	1996-04-10	1999-09-01	Brahma S.p.A.	Zündvorrichtung für Brenner mit Unterdrückung von Hochfrequenzstörungen
EP0957316A3 (de) *	1998-05-12	2000-05-31	Miller Europe S.p.A.	Elektrischer Gasanzünder
US6242866B1 (en)	1998-05-12	2001-06-05	Miller Europe S.P.A.	Electric gas-lighter

Also Published As

Publication number	Publication date
EP0167510A3 (en)	1987-05-27
ATE43433T1 (de)	1989-06-15
DE167510T1 (de)	1986-04-10
EP0167510B1 (de)	1989-05-24
SE443220B (sv)	1986-02-17
DE3570512D1 (en)	1989-06-29
SE8403584L (sv)	1986-01-06
SE8403584D0 (sv)	1984-07-05

Legal Events

Date	Code	Title	Description
1985-11-09	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1986-01-08	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT LI LU NL
1986-03-07	ITCL	It: translation for ep claims filed	Representative=s name: UFFICIO TECNICO ING. A. MANNUCCI
1986-04-10	DET	De: translation of patent claims
1987-04-07	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1987-05-27	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI LU NL
1988-01-20	17P	Request for examination filed	Effective date: 19871120
1988-04-06	17Q	First examination report despatched	Effective date: 19880223
1989-03-20	ITF	It: translation for a ep patent filed
1989-04-08	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1989-05-24	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL
1989-05-24	REF	Corresponds to:	Ref document number: 43433 Country of ref document: AT Date of ref document: 19890615 Kind code of ref document: T
1989-05-31	RBV	Designated contracting states (corrected)	Designated state(s): AT CH DE FR IT LI
1989-06-07	GBDW	Gb: gb designation withdrawn
1989-06-28	GBDW	Gb: gb designation withdrawn
1989-06-29	REF	Corresponds to:	Ref document number: 3570512 Country of ref document: DE Date of ref document: 19890629
1989-07-13	ET	Fr: translation filed
1989-09-01	NLXE	Nl: other communications concerning ep-patents (part 3 heading xe)	Free format text: IN PAT.BUL.14/89,PAGE 1792:SHOULD BE DELETED
1990-03-27	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1990-03-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1990-05-16	26N	No opposition filed
1993-07-31	ITTA	It: last paid annual fee
1998-07-10	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19980710 Year of fee payment: 14
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1999-07-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990701
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