GB977531A - Epicyclic power transmission mechanisms - Google Patents
Epicyclic power transmission mechanismsInfo
- Publication number
- GB977531A GB977531A GB1550060A GB1550060A GB977531A GB 977531 A GB977531 A GB 977531A GB 1550060 A GB1550060 A GB 1550060A GB 1550060 A GB1550060 A GB 1550060A GB 977531 A GB977531 A GB 977531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- gear
- clutch
- brake
- epicyclic
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
-
- 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
- F16H2716/00—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices
- F16H2716/04—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices the control being hydraulic or pneumatic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Gear-Shifting Mechanisms (AREA)
- Retarders (AREA)
Abstract
977,531. Variable - speed epicyclic gear. A. C. WICKMAN. April 24, 1961 [May 3, 1960], No. 15500/60. Heading F2D. In a three-element epicyclic over/under drive gear the sun pinion 2 is engageable by axially-movable brake and clutch elements 10, 11, respectively, operated by one or more springs 17, located between the elements, and an overriding hydraulic actuator 24 for controlling the engagement and release of the second clutch element 16 carrying the annulus 6. In the overdrive unit shown spring 17 normally holds clutch elements 11, 16 in engagement to lock the gear for direct drive, but upon operation of piston 24 a lever 20 bearing against a fulcrum 21 on brake element 10 first disengages the clutch elements 11, 16 to release annulus 6, and then engages the brake elements 12, 13 to hold sun-wheel 2 fixed, so that the output shaft 8 is driven through the gear at increased speed. In a modification, Fig. 2 (not shown), the hydraulic actuator consists of differential pistons, the larger of which acts directly on brake element 10 and the smaller on clutch element 11. Underdrive arrangements with shafts 4, 8 reversed, Figs. 3 and 4 (not shown), are also described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1550060A GB977531A (en) | 1960-05-03 | 1960-05-03 | Epicyclic power transmission mechanisms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1550060A GB977531A (en) | 1960-05-03 | 1960-05-03 | Epicyclic power transmission mechanisms |
Publications (1)
Publication Number | Publication Date |
---|---|
GB977531A true GB977531A (en) | 1964-12-09 |
Family
ID=10060234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1550060A Expired GB977531A (en) | 1960-05-03 | 1960-05-03 | Epicyclic power transmission mechanisms |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB977531A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5735767A (en) * | 1996-10-21 | 1998-04-07 | New Venture Gear, Inc. | Add-on two-speed compounder |
-
1960
- 1960-05-03 GB GB1550060A patent/GB977531A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5735767A (en) * | 1996-10-21 | 1998-04-07 | New Venture Gear, Inc. | Add-on two-speed compounder |
US5975263A (en) * | 1996-10-21 | 1999-11-02 | New Venture Gear, Inc. | Synchronizer clutch |
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