FR2450520A1 - Spark plug mounting sleeve for IC engine - is tapered with larger dia. end contg. annular groove allowing deformation of sleeve - Google Patents

Spark plug mounting sleeve for IC engine - is tapered with larger dia. end contg. annular groove allowing deformation of sleeve

Info

Publication number
FR2450520A1
FR2450520A1 FR7905572A FR7905572A FR2450520A1 FR 2450520 A1 FR2450520 A1 FR 2450520A1 FR 7905572 A FR7905572 A FR 7905572A FR 7905572 A FR7905572 A FR 7905572A FR 2450520 A1 FR2450520 A1 FR 2450520A1
Authority
FR
France
Prior art keywords
sleeve
spark plug
tapered
annular groove
contg
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.)
Granted
Application number
FR7905572A
Other languages
French (fr)
Other versions
FR2450520B1 (en
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.)
BOSONNET MAURICE LOUIS
Original Assignee
BOSONNET MAURICE LOUIS
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 BOSONNET MAURICE LOUIS filed Critical BOSONNET MAURICE LOUIS
Priority to FR7905572A priority Critical patent/FR2450520A1/en
Publication of FR2450520A1 publication Critical patent/FR2450520A1/en
Application granted granted Critical
Publication of FR2450520B1 publication Critical patent/FR2450520B1/fr
Granted 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
    • H01T13/08—Mounting, fixing or sealing of sparking plugs, e.g. in combustion chamber

Abstract

The sleeve is used to repair "stripped" threads in a cylinder head, using spark plugs sealing onto a tapered annular seat. The lightly tapered sleeve is inserted into an enlarged and retapped spark plug hole, of D, in the cylinder head. The inner dia. d and the pitch of the inner thread (2) of the sleeve are matched to that of the spark plug to be inserted. The annular groove (6) allows deformation of the sleeve as the spark plug is screwed down, to ensure a good seal.
FR7905572A 1979-02-27 1979-02-27 Spark plug mounting sleeve for IC engine - is tapered with larger dia. end contg. annular groove allowing deformation of sleeve Granted FR2450520A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7905572A FR2450520A1 (en) 1979-02-27 1979-02-27 Spark plug mounting sleeve for IC engine - is tapered with larger dia. end contg. annular groove allowing deformation of sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7905572A FR2450520A1 (en) 1979-02-27 1979-02-27 Spark plug mounting sleeve for IC engine - is tapered with larger dia. end contg. annular groove allowing deformation of sleeve

Publications (2)

Publication Number Publication Date
FR2450520A1 true FR2450520A1 (en) 1980-09-26
FR2450520B1 FR2450520B1 (en) 1981-10-30

Family

ID=9222729

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905572A Granted FR2450520A1 (en) 1979-02-27 1979-02-27 Spark plug mounting sleeve for IC engine - is tapered with larger dia. end contg. annular groove allowing deformation of sleeve

Country Status (1)

Country Link
FR (1) FR2450520A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007039154A1 (en) * 2005-09-30 2007-04-12 Adolf Würth GmbH & Co. KG Threaded bush, method for renewing a screw thread and tool used for that purpose
EP3053701A1 (en) * 2015-02-09 2016-08-10 United Technologies Corporation Flangeless conical sleeve and method of repair
US20180026427A1 (en) * 2016-07-22 2018-01-25 Borgwarner Ludwigsburg Gmbh Protective sleeve for a corona ignitor in a spark plug shaft of an engine
WO2022135738A1 (en) * 2020-12-22 2022-06-30 Caterpillar Energy Solutions Gmbh Improved contact surface of the spark plug jacket

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1024852A (en) * 1950-09-23 1953-04-08 Spark plug support base for cross-threaded cylinder heads
FR1303509A (en) * 1960-07-25 1962-09-14 Rosan Eng Corp Thin-walled bush and its manufacturing process
US3198231A (en) * 1962-01-09 1965-08-03 South Chester Corp High strength threaded insert
US3864806A (en) * 1971-11-08 1975-02-11 Le Roy P Hanson Method of repairing stripped spark plug threads in engine heads

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1024852A (en) * 1950-09-23 1953-04-08 Spark plug support base for cross-threaded cylinder heads
FR1303509A (en) * 1960-07-25 1962-09-14 Rosan Eng Corp Thin-walled bush and its manufacturing process
US3198231A (en) * 1962-01-09 1965-08-03 South Chester Corp High strength threaded insert
US3864806A (en) * 1971-11-08 1975-02-11 Le Roy P Hanson Method of repairing stripped spark plug threads in engine heads

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007039154A1 (en) * 2005-09-30 2007-04-12 Adolf Würth GmbH & Co. KG Threaded bush, method for renewing a screw thread and tool used for that purpose
EP3053701A1 (en) * 2015-02-09 2016-08-10 United Technologies Corporation Flangeless conical sleeve and method of repair
US20180026427A1 (en) * 2016-07-22 2018-01-25 Borgwarner Ludwigsburg Gmbh Protective sleeve for a corona ignitor in a spark plug shaft of an engine
US10461508B2 (en) * 2016-07-22 2019-10-29 Borgwarner Ludwigsburg Gmbh Protective sleeve for a corona ignitor in a spark plug shaft of an engine
WO2022135738A1 (en) * 2020-12-22 2022-06-30 Caterpillar Energy Solutions Gmbh Improved contact surface of the spark plug jacket
US11962130B2 (en) 2020-12-22 2024-04-16 Caterpillar Energy Solutions Gmbh Contact surface of the spark plug jacket

Also Published As

Publication number Publication date
FR2450520B1 (en) 1981-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse