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 endInfo
- 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
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.
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)
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)
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)
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 |
-
1973
- 1973-07-11 IT IT6906773A patent/IT1046261B/en active
- 1973-12-12 DE DE19732361712 patent/DE2361712C2/en not_active Expired
-
1974
- 1974-01-10 FR FR7400867A patent/FR2236612A1/en active Granted
Cited By (4)
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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