GB638939A - Improvements in planetary change-speed gears - Google Patents
Improvements in planetary change-speed gearsInfo
- Publication number
- GB638939A GB638939A GB20548A GB20548A GB638939A GB 638939 A GB638939 A GB 638939A GB 20548 A GB20548 A GB 20548A GB 20548 A GB20548 A GB 20548A GB 638939 A GB638939 A GB 638939A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sun
- train
- integral
- driven shaft
- gear
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
638,939. Epicyclic change - speed gearing. CLERK, R. C. Jan. 2, 1948, No. 205. [Class 80 (ii)] A three-speed epicyclic gearing comprises a driving shaft 14 keyed to a sleeve 20 integral with an annulus 1A of the first train, the planet carrier 1C of which is fixed to the driven shaft 17. A sun 1S is integral with an annulus 2A of the second train the carrier 2C of which is also secured to the driven shaft 17. The suns 1S, 2S have armatures 25, 28 engaging electro-magnetic brakes U, O for underdrive and overdrive ratios respectively, while an electromagnetic clutch D locks the second train to effect direct drive. The addition of a third train having an annulus 3A coupled with the driven shaft 17, a sun 3S integral with the sun 1S and a brakeable carrier 3C provides a fourth gear (low). The addition of a fourth train having a sun 4S integral with the driving sleeve 20, a planet carrier 4C coupled with the driven shaft 17 and a brakeable annullus 4A yields a fifth gear (emergency low). A reverse gear is provided by a fifth gear train comprising a sun 5S integral with the sun 4S, an annulus 5A coupled with the driven shaft 17 and a brakeable carrier 5C. The brakes of the third, fourth and fifth trains are of the torqueassisted type such as that described in Specificaaion 625,277. The gear box includes an impellor 54 to force lubricant from a sump 52 through axial and radial bores 60-63 in the shafts. Specification 625,318 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20548A GB638939A (en) | 1948-01-02 | 1948-01-02 | Improvements in planetary change-speed gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20548A GB638939A (en) | 1948-01-02 | 1948-01-02 | Improvements in planetary change-speed gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB638939A true GB638939A (en) | 1950-06-21 |
Family
ID=9700258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20548A Expired GB638939A (en) | 1948-01-02 | 1948-01-02 | Improvements in planetary change-speed gears |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB638939A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3203275A (en) * | 1962-11-26 | 1965-08-31 | Vaino A Hoover | Mechanical actuator |
-
1948
- 1948-01-02 GB GB20548A patent/GB638939A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3203275A (en) * | 1962-11-26 | 1965-08-31 | Vaino A Hoover | Mechanical actuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2056270A5 (en) | ||
| GB959763A (en) | Variable-speed transmission | |
| GB751140A (en) | Improvements relating to change-speed gearing | |
| GB1167049A (en) | Improvements in or relating to E picyclic Gear Boxes. | |
| GB929333A (en) | Improvements in or relating to epicyclic gear trains | |
| GB638939A (en) | Improvements in planetary change-speed gears | |
| GB1198074A (en) | Multi-Speed Epicyclic Power Transmission | |
| GB1472832A (en) | Automatic transmission | |
| GB936586A (en) | Improvements in and relating to epicyclic change speed gearing | |
| GB884562A (en) | Railway locomotive transmissions | |
| GB1273110A (en) | Multiple speed ratio power transmission mechanism | |
| GB694861A (en) | Improvements in change speed gearing of the double planetary type | |
| GB743814A (en) | Improvements in and relating to epicyclic change-speed gearing | |
| GB805172A (en) | Improvements in or relating to variable-speed transmissions | |
| GB727894A (en) | Improvements in or relating to change-speed gears | |
| GB713777A (en) | Improvements in change-speed gearing | |
| ES465229A1 (en) | Transmission | |
| GB670940A (en) | Automatic gearbox | |
| GB857089A (en) | Planetary gear design | |
| GB691705A (en) | Epicyclic power transmission mechanisms | |
| GB1307352A (en) | Epicyclic change speed gearing | |
| GB580442A (en) | Planetary change speed transmission | |
| GB625318A (en) | Improvements in friction clutches and in gears embodying them | |
| GB492847A (en) | Improvements in or relating to planetary change-speed gears | |
| GB904329A (en) | Improvements in or relating to variable-ratio gear transmissions |