GB546016A - Improvements in or relating to the manufacture of poppet valves - Google Patents
Improvements in or relating to the manufacture of poppet valvesInfo
- Publication number
- GB546016A GB546016A GB10052/40A GB1005240A GB546016A GB 546016 A GB546016 A GB 546016A GB 10052/40 A GB10052/40 A GB 10052/40A GB 1005240 A GB1005240 A GB 1005240A GB 546016 A GB546016 A GB 546016A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coolant
- valve
- stem
- forging
- bore
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000002826 coolant Substances 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 238000005242 forging Methods 0.000 abstract 2
- 244000273618 Sphenoclea zeylanica Species 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
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
- F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
Abstract
546,016. Making valves. EATON MANUFACTURING CO. June 8, 1940, No. 10052. Convention date, March 25. [Classes 83 (ii) and 83 (iv)] Forging; pipe-end closing.-A poppet valve having a hollow stem containing coolant e.g. as in Specification 224,288, [Class 7 (iv)], is made preferably from a rod having a diameter equal to that of the finished valve stem, by forming a hollow valve blank B, Fig. 4, e.g. by forging and drilling, and applying axial pressure to the free end of the stem 12 to upset it and close the bore. The portion to be closed is heated before inserting in the die 16. If easily oxidizable coolant 22 is to be introduced before upsetting, the bore may first be charged with nitrogen or other inert or reducing gas and be flooded therewith during the operation. If the coolant is not so introduced, the upset end is drilled axially and taper reamed at 28, Fig. 8, the coolant 22 is introduced, and the hole 28 is closed by a plug 30 preferably welded as in Specification 379,832. In either case a disc 26 may be welded on and the valve machined to final form.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US546016XA | 1940-03-25 | 1940-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB546016A true GB546016A (en) | 1942-06-24 |
Family
ID=21992222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10052/40A Expired GB546016A (en) | 1940-03-25 | 1940-06-08 | Improvements in or relating to the manufacture of poppet valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB546016A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3016601A (en) * | 1957-12-16 | 1962-01-16 | Thompson Ramo Wooldridge Inc | Method of making hollow valves |
| GB2330547A (en) * | 1997-10-23 | 1999-04-28 | Bosch Gmbh Robert | Process for the leakproof closure of a bore in a workpiece made of ductile material |
-
1940
- 1940-06-08 GB GB10052/40A patent/GB546016A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3016601A (en) * | 1957-12-16 | 1962-01-16 | Thompson Ramo Wooldridge Inc | Method of making hollow valves |
| GB2330547A (en) * | 1997-10-23 | 1999-04-28 | Bosch Gmbh Robert | Process for the leakproof closure of a bore in a workpiece made of ductile material |
| GB2330547B (en) * | 1997-10-23 | 1999-10-06 | Bosch Gmbh Robert | Process for the leakproof closure of a bore in a workpiece made of ductile material |
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