JPS568954B2 - - Google Patents
Info
- Publication number
- JPS568954B2 JPS568954B2 JP7065777A JP7065777A JPS568954B2 JP S568954 B2 JPS568954 B2 JP S568954B2 JP 7065777 A JP7065777 A JP 7065777A JP 7065777 A JP7065777 A JP 7065777A JP S568954 B2 JPS568954 B2 JP S568954B2
- Authority
- JP
- Japan
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7065777A JPS545253A (en) | 1977-06-15 | 1977-06-15 | Heat exchanger pipe & its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7065777A JPS545253A (en) | 1977-06-15 | 1977-06-15 | Heat exchanger pipe & its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS545253A JPS545253A (en) | 1979-01-16 |
| JPS568954B2 true JPS568954B2 (en) | 1981-02-26 |
Family
ID=13437935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7065777A Granted JPS545253A (en) | 1977-06-15 | 1977-06-15 | Heat exchanger pipe & its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS545253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0246408B2 (en) * | 1984-11-13 | 1990-10-16 | Kubota Ltd |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI125709B (en) * | 2007-08-31 | 2016-01-15 | Retermia Oy | Apparatus and method for making a needle tube and needle tube |
-
1977
- 1977-06-15 JP JP7065777A patent/JPS545253A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0246408B2 (en) * | 1984-11-13 | 1990-10-16 | Kubota Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS545253A (en) | 1979-01-16 |