GB1534016A - Sealing ring - Google Patents
Sealing ringInfo
- Publication number
- GB1534016A GB1534016A GB4384575A GB4384575A GB1534016A GB 1534016 A GB1534016 A GB 1534016A GB 4384575 A GB4384575 A GB 4384575A GB 4384575 A GB4384575 A GB 4384575A GB 1534016 A GB1534016 A GB 1534016A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sealing ring
- thrust bearing
- ring
- clearances
- hydrostatic thrust
- 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
- F16H—GEARING
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/32—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
- F16H15/36—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface
- F16H15/38—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line with concave friction surface, e.g. a hollow toroid surface with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
-
- 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
- F16J15/44—Free-space packings
- F16J15/441—Free-space packings with floating ring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
1534016 Seals; change-speed gearing; bearings NATIONAL RESEARCH DEVELOPMENT CORP 7 Jan 1977 [24 Oct 1975] 43845/75 Headings F2B F2D and F2A A two-part sealing ring 32 (Figs. 2 and 3) for a hydrostatic thrust bearing 17 formed between two relatively rotatable members 13, 14 is arranged with clearances 37, 40, 43 in an annular groove 30 on member 14 for controlling loss of pressure oil, from the hydrostatic thrust bearing 17, at a boundary between the members 13, 14, the surfaces of the ring 32 and/or groove 30 being contoured to provide flow restrictions across the clearances 37, 40, 43 and the ring 32 being provided with primary passageways 53 and secondary passageways 51 interconnecting the clearances such that the fluid pressure forces generated by the pressure oil of the hydrostatic thrust bearing 17 and acting on the sealing ring 32 are perfectly balanced (Fig. 3) to locate the ring 32 free of contact with the groove 30. The oil is supplied at 18 (Fig. 1) to the hydrostatic thrust bearing by a pump 19 and leakage from the sealing ring 32 (21 in Fig. 1) is collected by a channel 25 and returned to the pump 29 via a return duct 26 and sump 24, a second similar sealing ring 22 being arranged at the radially inner surface of the members 13, 14. Similar alternative embodiments and modifications are illustrated in Figs. 2a, 2b, 3a and 4a to 4c all not shown. In Fig. 6 (not shown) two such sealing ring arrangements (141, 142) are used at the inner and outer boundaries of a high pressure fed, hydrostatic bearing between a reaction member (117), on an input shaft (103), and the output member (116) of a steplessly variable ratio friction roller gear.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4384575A GB1534016A (en) | 1975-10-24 | 1975-10-24 | Sealing ring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4384575A GB1534016A (en) | 1975-10-24 | 1975-10-24 | Sealing ring |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1534016A true GB1534016A (en) | 1978-11-29 |
Family
ID=10430562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4384575A Expired GB1534016A (en) | 1975-10-24 | 1975-10-24 | Sealing ring |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1534016A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4314485A (en) * | 1978-11-16 | 1982-02-09 | Cam Gears Limited | Speed control systems |
WO1990011462A1 (en) * | 1989-03-28 | 1990-10-04 | Perry Forbes G D | Continuously variable transmissions |
EP0860629A3 (en) * | 1997-02-21 | 1999-01-07 | Motovario S.p.A. | Mechanical speed variator |
-
1975
- 1975-10-24 GB GB4384575A patent/GB1534016A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4314485A (en) * | 1978-11-16 | 1982-02-09 | Cam Gears Limited | Speed control systems |
WO1990011462A1 (en) * | 1989-03-28 | 1990-10-04 | Perry Forbes G D | Continuously variable transmissions |
EP0860629A3 (en) * | 1997-02-21 | 1999-01-07 | Motovario S.p.A. | Mechanical speed variator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |