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GB948438A - Improvements relating to engine ignition systems - Google Patents

Improvements relating to engine ignition systems

Info

Publication number
GB948438A
GB948438A GB2580759A GB2580759A GB948438A GB 948438 A GB948438 A GB 948438A GB 2580759 A GB2580759 A GB 2580759A GB 2580759 A GB2580759 A GB 2580759A GB 948438 A GB948438 A GB 948438A
Authority
GB
United Kingdom
Prior art keywords
parts
silicone rubber
composition
july
carbon black
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
GB2580759A
Inventor
Douglas Bulgin
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB2580759A priority Critical patent/GB948438A/en
Publication of GB948438A publication Critical patent/GB948438A/en
Expired legal-status Critical Current

Links

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
    • H01T13/05—Means providing electrical connection to sparking plugs combined with interference suppressing or shielding means

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)

Abstract

948,438. Composition resistors. DUNLOP RUBBER CO. July 12, 1960 [July 28, 1959], No. 25807/59. Heading H1S. [Also in Division F1] An interference suppressor for an engineignition system comprises an electrically resistive element of silicone rubber composition. The rubular insulating body 1 may be moulded from polyvinyl chloride. Brass discs 3 and 3a are bonded one to each end of the rubber core. In a modification the electrically resisting element of silicone rubber comprises a cylindrical element having at each end integral tubular portions for the reception of electrical connectors. The silicone rubber composition may consist of 100 parts of silicone rubber 18 parts of acetylene carbon black and 3 parts of dicumyl peroxide. The resistivity of the final product can be varied by altering the proportion of the carbon black in the composition within the range 18 to 20 parts to give the required resistance within the range 5000 to 15,000 ohms. Silicone rubbers preferred for use in the suppressors are of the type based on polydimethylsilosane incorporating methyl and vinyl side groups. This is preferably crosslinked with one of the known organic peroxide curing agents such as dicumyl peroxide.
GB2580759A 1959-07-28 1959-07-28 Improvements relating to engine ignition systems Expired GB948438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2580759A GB948438A (en) 1959-07-28 1959-07-28 Improvements relating to engine ignition systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2580759A GB948438A (en) 1959-07-28 1959-07-28 Improvements relating to engine ignition systems

Publications (1)

Publication Number Publication Date
GB948438A true GB948438A (en) 1964-02-05

Family

ID=10233629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2580759A Expired GB948438A (en) 1959-07-28 1959-07-28 Improvements relating to engine ignition systems

Country Status (1)

Country Link
GB (1) GB948438A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348186A (en) * 1964-11-16 1967-10-17 Nordson Corp High resistance cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348186A (en) * 1964-11-16 1967-10-17 Nordson Corp High resistance cable

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