GB665237A - Continuous speed variator with a small stress of control and a high ratio variation - Google Patents
Continuous speed variator with a small stress of control and a high ratio variationInfo
- Publication number
- GB665237A GB665237A GB19324/49A GB1932449A GB665237A GB 665237 A GB665237 A GB 665237A GB 19324/49 A GB19324/49 A GB 19324/49A GB 1932449 A GB1932449 A GB 1932449A GB 665237 A GB665237 A GB 665237A
- Authority
- GB
- United Kingdom
- Prior art keywords
- axis
- roller
- pin
- control
- high ratio
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
665,237. Variable-speed gearing. PIGNONE SOC. PER AZIONI. July 22, 1949 [Aug. 11, 1948], No. 19324/49. Class 80 (ii). In variable-speed friction gearing comprising a non-planetary roller 8 between toric races 1, 2, the roller is journalled on a slotted member 12 pivotally carried by a pin 14 on an external cranked support 7 rotatable in a stationary member 17 about an axis 19 parallel to the axis of the shafts and passing through the centre of the roller 8, the axis 18 of the pin 14 being inclined at an angle # to the axis 19. To vary the gear ratio, the support 7 is turned about its axis 19 so as to tilt the roller 8 about its contact diameter, the roller then precessing about the pin 14.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT665237X | 1948-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB665237A true GB665237A (en) | 1952-01-16 |
Family
ID=11298529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19324/49A Expired GB665237A (en) | 1948-08-11 | 1949-07-22 | Continuous speed variator with a small stress of control and a high ratio variation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB665237A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004090382A1 (en) * | 2003-04-09 | 2004-10-21 | Torotrak (Development) Ltd. | Transmission of the toroidal race rolling traction type |
| WO2005121602A1 (en) * | 2004-06-07 | 2005-12-22 | Torotrak (Development) Limited | Variator |
| CN101365894B (en) * | 2005-12-05 | 2010-12-08 | 托罗特拉克(开发)有限公司 | Variator |
| US9897205B2 (en) * | 2012-04-19 | 2018-02-20 | Transmission Cvtcorp Inc. | Roller position control in a Toric-drive CVT |
| US10221926B2 (en) | 2012-01-10 | 2019-03-05 | Allison Transmission, Inc. | Continuously variable toroidal transmission |
-
1949
- 1949-07-22 GB GB19324/49A patent/GB665237A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004090382A1 (en) * | 2003-04-09 | 2004-10-21 | Torotrak (Development) Ltd. | Transmission of the toroidal race rolling traction type |
| US9175758B2 (en) | 2003-04-09 | 2015-11-03 | Torotrak (Development) Limited | Transmission of the toroidal race rolling traction type |
| WO2005121602A1 (en) * | 2004-06-07 | 2005-12-22 | Torotrak (Development) Limited | Variator |
| CN100451388C (en) * | 2004-06-07 | 2009-01-14 | 托罗特拉克(开发)有限公司 | Variator |
| US7951041B2 (en) | 2004-06-07 | 2011-05-31 | Torotrak (Development) Limited | Variator |
| CN101365894B (en) * | 2005-12-05 | 2010-12-08 | 托罗特拉克(开发)有限公司 | Variator |
| US10221926B2 (en) | 2012-01-10 | 2019-03-05 | Allison Transmission, Inc. | Continuously variable toroidal transmission |
| US9897205B2 (en) * | 2012-04-19 | 2018-02-20 | Transmission Cvtcorp Inc. | Roller position control in a Toric-drive CVT |
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