GB1413029A - Sealing means for a rotating shaft - Google Patents
Sealing means for a rotating shaftInfo
- Publication number
- GB1413029A GB1413029A GB4425773A GB4425773A GB1413029A GB 1413029 A GB1413029 A GB 1413029A GB 4425773 A GB4425773 A GB 4425773A GB 4425773 A GB4425773 A GB 4425773A GB 1413029 A GB1413029 A GB 1413029A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- shaft
- casing
- bore
- rings
- 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
- F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
- F16J15/30—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Mechanical Sealing (AREA)
Abstract
1413029 Rotary shaft seals GROLL LEONETTI & CIE SA 20 Sept 1973 44257/73 Heading F2B A rotary shaft 1 is sealed where it extends through a wall 2 by means comprising a casing 3, a split ring 4 closely surrounding the shaft, an unsplit ring 5 surrounding the shaft with clearance and urged radially by resilient means 18 to contact the shafts in the axial zone C of the slit 11 in the split ring, means preventing rotation of the rings 4, 5 in the casing, end resilient means 19 urging the rings axially against each other and the unsplit ring against a shoulder 9 on the casing. The ring 4, which may be of carbon, has a radial dimension that increases, preferably continuously, on each side of the slits 11 to the diametrically opposed zone so that when the slit is opened, due to thermal expansion of the shaft, the bore 10 remains cylindrical. The initial diameter of the bore may be less than, equal to or even greater than the shaft diameter. Lugs 12 and 16 on the casing engage notches 13 and 17 in the rings 4 and 5 respectively. The spring washer 19 is located by a spring ring 20. The split ring may be formed from two materials, e.g. carbon loaded with P.T.F.E. and a metal alloy and the cylindricity of the bore 10 may be maintained during shaft expansion by the use of two materials, by slits in the outer periphery of the ring or by removal of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4425773A GB1413029A (en) | 1973-09-20 | 1973-09-20 | Sealing means for a rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4425773A GB1413029A (en) | 1973-09-20 | 1973-09-20 | Sealing means for a rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1413029A true GB1413029A (en) | 1975-11-05 |
Family
ID=10432474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4425773A Expired GB1413029A (en) | 1973-09-20 | 1973-09-20 | Sealing means for a rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1413029A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147367A (en) * | 1978-05-30 | 1979-04-03 | Rexnord Inc. | Shaft seal for bearing housing |
| CN103470768A (en) * | 2013-08-30 | 2013-12-25 | 西安交通大学苏州研究院 | Carbon ring seal |
| CN106382368A (en) * | 2016-11-30 | 2017-02-08 | 重庆江增船舶重工有限公司 | Shrinking sealed carbon ring and mounting structure thereof |
| CN110985787A (en) * | 2019-12-30 | 2020-04-10 | 上海齐耀动力技术有限公司 | Low-temperature rotary joint structure |
| US20230265926A1 (en) * | 2022-02-24 | 2023-08-24 | Roller Bearing Company Of America, Inc. | Cartridge seal assembly |
-
1973
- 1973-09-20 GB GB4425773A patent/GB1413029A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147367A (en) * | 1978-05-30 | 1979-04-03 | Rexnord Inc. | Shaft seal for bearing housing |
| CN103470768A (en) * | 2013-08-30 | 2013-12-25 | 西安交通大学苏州研究院 | Carbon ring seal |
| CN103470768B (en) * | 2013-08-30 | 2015-12-02 | 西安交通大学苏州研究院 | A kind of carbon ring seal |
| CN106382368A (en) * | 2016-11-30 | 2017-02-08 | 重庆江增船舶重工有限公司 | Shrinking sealed carbon ring and mounting structure thereof |
| CN110985787A (en) * | 2019-12-30 | 2020-04-10 | 上海齐耀动力技术有限公司 | Low-temperature rotary joint structure |
| US20230265926A1 (en) * | 2022-02-24 | 2023-08-24 | Roller Bearing Company Of America, Inc. | Cartridge seal assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19930919 |