GB399752A - Improvements in ignition plugs - Google Patents

Improvements in ignition plugs

Info

Publication number
GB399752A
GB399752A GB13920/33A GB1392033A GB399752A GB 399752 A GB399752 A GB 399752A GB 13920/33 A GB13920/33 A GB 13920/33A GB 1392033 A GB1392033 A GB 1392033A GB 399752 A GB399752 A GB 399752A
Authority
GB
United Kingdom
Prior art keywords
filament
insulation
aluminium
sleeve
ignition plugs
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
Application number
GB13920/33A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB399752A publication Critical patent/GB399752A/en
Expired 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

Abstract

399,752. Ignition plugs. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. May 12, 1933, No. 13920. Convention date, Jan. 5. [Class 7 (iv).] An electrically heated filament 3, comprising molybdenum or tungsten, for example, is enclosed in a body 2 of pure metal oxide such as aluminium oxide fused at a temperature above 1600‹ C., or a mixture of metal oxides. The ends 4, 6 of the filament are pressed into contact with a central rod 5 and metal sleeve 7 insulated from both rod and casing by a layer of insulation 10. If aluminium is used for the sleeve the insulation may be aluminium oxide. The filament may consist of narrow spiral windings, of a bifilar winding, or a broader spiral winding through the centre of which one end is returned. Circuit leads are attached to the outer ends of the members 5, 7.
GB13920/33A 1933-01-05 1933-05-12 Improvements in ignition plugs Expired GB399752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE399752X 1933-01-05

Publications (1)

Publication Number Publication Date
GB399752A true GB399752A (en) 1933-10-12

Family

ID=6397521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13920/33A Expired GB399752A (en) 1933-01-05 1933-05-12 Improvements in ignition plugs

Country Status (1)

Country Link
GB (1) GB399752A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927978A1 (en) * 1979-07-11 1981-01-29 Beru Werk Ruprecht Gmbh Co A Glow plug with temp. dependent current limiting resistor - has full resistor length at plug operating temp. by forming air gap between body and heating tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927978A1 (en) * 1979-07-11 1981-01-29 Beru Werk Ruprecht Gmbh Co A Glow plug with temp. dependent current limiting resistor - has full resistor length at plug operating temp. by forming air gap between body and heating tube

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