FR2236612A1 - Hollow coolant-filled combustion engine valve - one-piece hollow valve with stem has welded-on top end - Google Patents

Hollow coolant-filled combustion engine valve - one-piece hollow valve with stem has welded-on top end

Info

Publication number
FR2236612A1
FR2236612A1 FR7400867A FR7400867A FR2236612A1 FR 2236612 A1 FR2236612 A1 FR 2236612A1 FR 7400867 A FR7400867 A FR 7400867A FR 7400867 A FR7400867 A FR 7400867A FR 2236612 A1 FR2236612 A1 FR 2236612A1
Authority
FR
France
Prior art keywords
stem
valve
hollow
top end
coolant
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
FR7400867A
Other languages
French (fr)
Other versions
FR2236612B1 (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.)
Eaton SRL
Original Assignee
Eaton SRL
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 Eaton SRL filed Critical Eaton SRL
Publication of FR2236612A1 publication Critical patent/FR2236612A1/en
Application granted granted Critical
Publication of FR2236612B1 publication Critical patent/FR2236612B1/fr
Granted 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/12—Cooling of valves
    • F01L3/14—Cooling of valves by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
    • B23P15/002—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings poppet valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

The valve is made in one piece with hollow stem which is shorter than its ultimate length. After filling with the appropriate cooling means, the top end is welded-on or otherwise fixed. This produces a valve stem of the desired length, whils avoiding creating a weak area in the disc region. A metal disc may be forced into the bore after filling with coolant and before welding to prevent the coolant being exposed to atmosphere during subsequent operations. The top end piece is preferably of the same diameter as the stem. It may have a projection of smaller diameter, fitting in the bore in the stem.
FR7400867A 1973-07-11 1974-01-10 Hollow coolant-filled combustion engine valve - one-piece hollow valve with stem has welded-on top end Granted FR2236612A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6906773A IT1046261B (en) 1973-07-11 1973-07-11 PROCEDURE FOR THE MANUFACTURE OF CAVE VALVES AND VALVES THUS OBTAINED FOR INTERNAL COMBUSTION ENGINES AND OTHER MACHINES IN GENERAL

Publications (2)

Publication Number Publication Date
FR2236612A1 true FR2236612A1 (en) 1975-02-07
FR2236612B1 FR2236612B1 (en) 1980-07-04

Family

ID=11311273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400867A Granted FR2236612A1 (en) 1973-07-11 1974-01-10 Hollow coolant-filled combustion engine valve - one-piece hollow valve with stem has welded-on top end

Country Status (3)

Country Link
DE (1) DE2361712C2 (en)
FR (1) FR2236612A1 (en)
IT (1) IT1046261B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465147A1 (en) * 1979-09-08 1981-03-20 Mtu Muenchen Gmbh PROCESS FOR MANUFACTURING A FILLED SODIUM VALVE
EP0429900A2 (en) * 1989-11-29 1991-06-05 Mercedes-Benz Ag Method for manufacturing hollow valves of piston motors
CN106238941A (en) * 2016-08-25 2016-12-21 重庆三爱海陵实业有限责任公司 The manufacturing process of hollow valve filled with sodium

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329848A1 (en) * 1975-10-30 1977-05-27 Semt COOLED MUSHROOM TYPE VALVE BY CIRCULATION OF A REFRIGERANT FLUID
US8991353B2 (en) * 2012-04-18 2015-03-31 GM Global Technology Operations LLC Valve system
DE102013210900A1 (en) 2013-06-11 2014-12-11 Mahle International Gmbh Gas exchange valve of an internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371548A (en) * 1943-12-06 1945-03-13 Thomas F Saffady Valve
US3233599A (en) * 1964-10-12 1966-02-08 Bayerisches Leichtmetallwerk K Valve, valve-manufacturing process and articles used in said process
US3701342A (en) * 1971-03-08 1972-10-31 Herbert B Owsley Valve member

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465147A1 (en) * 1979-09-08 1981-03-20 Mtu Muenchen Gmbh PROCESS FOR MANUFACTURING A FILLED SODIUM VALVE
EP0429900A2 (en) * 1989-11-29 1991-06-05 Mercedes-Benz Ag Method for manufacturing hollow valves of piston motors
EP0429900A3 (en) * 1989-11-29 1991-10-16 Mercedes Benz Ag Method for manufacturing hollow valves of piston motors
CN106238941A (en) * 2016-08-25 2016-12-21 重庆三爱海陵实业有限责任公司 The manufacturing process of hollow valve filled with sodium

Also Published As

Publication number Publication date
DE2361712A1 (en) 1975-02-06
IT1046261B (en) 1980-06-30
DE2361712C2 (en) 1983-11-03
FR2236612B1 (en) 1980-07-04

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