JPS551446A - Improved push rod for internal combustion engine - Google Patents

Improved push rod for internal combustion engine

Info

Publication number
JPS551446A
JPS551446A JP7495978A JP7495978A JPS551446A JP S551446 A JPS551446 A JP S551446A JP 7495978 A JP7495978 A JP 7495978A JP 7495978 A JP7495978 A JP 7495978A JP S551446 A JPS551446 A JP S551446A
Authority
JP
Japan
Prior art keywords
end fittings
steel pipe
pipe material
combustion engine
internal combustion
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.)
Pending
Application number
JP7495978A
Other languages
Japanese (ja)
Inventor
Masayoshi Usui
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.)
Usui Kokusai Sangyo Kaisha Ltd
Original Assignee
Usui Kokusai Sangyo Kaisha 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 Usui Kokusai Sangyo Kaisha Ltd filed Critical Usui Kokusai Sangyo Kaisha Ltd
Priority to JP7495978A priority Critical patent/JPS551446A/en
Publication of JPS551446A publication Critical patent/JPS551446A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE:To prevent the formation of cracks in a weld, by specifying an electric resistance welding of steel pipe materials and end fittings. CONSTITUTION:An electric heating device 6 is disposed around end fittings 2 that are placed on a mouth edge of a pipe end of a steel pipe material 1 supported by means of a chuck 4 doubling as an electrode, are pushed by means of a push operating rod 5 doubling as an electrode and a carburizing hardening layer is formed on the wall surface. Electricity is conducted to an electric heater 6 to heat contact portions at approximate 600 deg.C as pushing the end fittings 2 to the mouth edge of the pipe end of the steel pipe material 1 by means of the push operating rod 5 while AC in 10000Angstrom /cm<2> are conducted for 2/100 second, the currents of the electric heating device 6 are slowly decreased just after conduction and the currents are interrupted after approximate two second. Thus, the formation of cracks in the carburizing hardening layer of the end fittings 2 is prevented because the quenching of a weld of the end fittings 2 and the steel pipe material 1 is moderated.
JP7495978A 1978-06-21 1978-06-21 Improved push rod for internal combustion engine Pending JPS551446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7495978A JPS551446A (en) 1978-06-21 1978-06-21 Improved push rod for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7495978A JPS551446A (en) 1978-06-21 1978-06-21 Improved push rod for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS551446A true JPS551446A (en) 1980-01-08

Family

ID=13562353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7495978A Pending JPS551446A (en) 1978-06-21 1978-06-21 Improved push rod for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS551446A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850315A (en) * 1988-05-27 1989-07-25 The Budd Company Push rod
US5027763A (en) * 1989-12-05 1991-07-02 Mall Tooling And Engineering One-piece push rod having enlarged spherical seat
US5069173A (en) * 1989-12-05 1991-12-03 Mall Tooling And Engineering Push rod having irregularly shaped internal bore
US6216557B1 (en) * 1994-07-12 2001-04-17 Honda Giken Kogyo Kabushiki Kaisha Push rod, and process for producing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850315A (en) * 1988-05-27 1989-07-25 The Budd Company Push rod
US5027763A (en) * 1989-12-05 1991-07-02 Mall Tooling And Engineering One-piece push rod having enlarged spherical seat
US5069173A (en) * 1989-12-05 1991-12-03 Mall Tooling And Engineering Push rod having irregularly shaped internal bore
US6216557B1 (en) * 1994-07-12 2001-04-17 Honda Giken Kogyo Kabushiki Kaisha Push rod, and process for producing the same

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