GB896080A - Seal arrangement for relatively rotatable parts - Google Patents
Seal arrangement for relatively rotatable partsInfo
- Publication number
- GB896080A GB896080A GB43927/60A GB4392760A GB896080A GB 896080 A GB896080 A GB 896080A GB 43927/60 A GB43927/60 A GB 43927/60A GB 4392760 A GB4392760 A GB 4392760A GB 896080 A GB896080 A GB 896080A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- pressure
- gaps
- fluid
- seal
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/406—Sealings between relatively-moving surfaces by means of fluid by at least one pump
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
896,080. Stuffing-box substitutes. VOITH G.m.b.H., J. M. Dec. 21, 1960 [Dec. 28, 1959], No. 43927/60. Class 122 (5). A hydrodynamic seal between a rotary shaft 1 and a stationary housing 2 comprises an annular intermediate driven member 3 forming with the housing and the shaft gaps 10, 11 and having respectively on each of its inner and outer surfaces two sections 6, 7 and 8, 9 of helical feed grooves of opposite hand. The drive for the member 3 may be independent from the shaft drive and may be operated by fluid pressure, such as an oil-operated Pelton turbine, or by electricity. Sealing medium 12, e.g. oil, is introduced prior to operation in the gaps 10, 11 through ducts 20, 21. When the member 3 is rotated, the medium is forced by the helical grooves towards the centre of the gaps from both ends thereof and the resultant built up pressure provides a seal against the flow of the pressure-fluid to be sealed off contained in the space 4, the member 3 being supported radially and axially in a floating manner. Cooling fluid is circulated through grooves 22, 23 in the shaft and/or the casing for keeping the viscosity of the sealing medium constant. When the shaft and the member 3 are stationary, the latter, under the influence of the pressure fluid acting on its inner end face 14, bears with its annular surface 15 against a shoulder 16 on the casing 2 and with its outer end surface 17 against a flange 18, 18<SP>1</SP> on the shaft 1 directly or through a resilient diaphram seal 19.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE896080X | 1959-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB896080A true GB896080A (en) | 1962-05-09 |
Family
ID=6848006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB43927/60A Expired GB896080A (en) | 1959-12-28 | 1960-12-21 | Seal arrangement for relatively rotatable parts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB896080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915787A (en) * | 2018-08-09 | 2018-11-30 | 中国船舶重工集团公司第七0三研究所 | A kind of steam turbine helixseal structure |
-
1960
- 1960-12-21 GB GB43927/60A patent/GB896080A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915787A (en) * | 2018-08-09 | 2018-11-30 | 中国船舶重工集团公司第七0三研究所 | A kind of steam turbine helixseal structure |
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