GB758516A - Improved change ratio power transmission mechanism - Google Patents
Improved change ratio power transmission mechanismInfo
- Publication number
- GB758516A GB758516A GB300453A GB300453A GB758516A GB 758516 A GB758516 A GB 758516A GB 300453 A GB300453 A GB 300453A GB 300453 A GB300453 A GB 300453A GB 758516 A GB758516 A GB 758516A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- torque converter
- change
- speed
- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
- F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/08—Transmission systems in or for locomotives or motor railcars with IC reciprocating piston engines
- B61C9/10—Transmission systems in or for locomotives or motor railcars with IC reciprocating piston engines mechanical
- B61C9/12—Transmission systems in or for locomotives or motor railcars with IC reciprocating piston engines mechanical with change-speed gearing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Friction Gearing (AREA)
- Transmission Devices (AREA)
Abstract
758,516. Change-speed gearing. HINDMARCH, T. Jan. 27, 1954 [Feb. 3, 1953], No. 3004/53. Class 80(2) Change-speed gearing for locomotives, railcars, road vehicles, rolling mills, machine tools, &c., comprises a continuously variable torque converter, Fig. 2, driving a shaft A, Fig. 1, carrying pinions B<SP>1</SP>, B<SP>2</SP>, B<SP>3</SP> clutchable thereto by fluid pressure operated friction clutches mounted within them and pinions C', C', C<SP>3</SP> on an output shaft D. The pinions C<SP>1</SP>, C<SP>2</SP> are mounted on the shaft D by means of freewheels and the pinion C<SP>3</SP> is fast thereon. The output shaft D forms the input shaft of a second, similar change-speed gear having an output shaft G which may either drive directly or through a reverse gear (not shown). The second change-speed gear has a fixed pinion E<SP>1</SP> and a freewheel in the smallest output pinion F<SP>3</SP>, so that overrunning is permitted, e.g. when the gear is used in a road vehicle. The two change-speed gears in series shown give nine ratios, but other combinations, e.g. of a two ratio gear in series with a two ratio gear to give four ratios &c., may be employed. Automatic speed or torque responsive means may be used to control the gear. The torque converter consists of an input shaft 1 carrying planet gears 3 meshing a sun gear 6 and a driven annulus 4 on an output shaft 5, the sun gear 6 driving a three or more element hydrokinetic torque converter 9 through a gear train 7, 8, the hydrokinetic torque converter itself driving the annulus and output shaft through a gear train 10, 11. By arranging for the torque converter to have a speed range slightly greater than the change in ratio between successive stages in the changespeed gear, the torque variations from ratio to ratio are smoothed out. According to the Provisional Specification, the torque converter can be used without the changespeed gear and, vice versa, the changespeed gear can be used without the torque converter. In the latter case, a separate isolating clutch is used, instead of the friction clutch provided within the pinion B'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB300453A GB758516A (en) | 1953-02-03 | 1953-02-03 | Improved change ratio power transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB300453A GB758516A (en) | 1953-02-03 | 1953-02-03 | Improved change ratio power transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB758516A true GB758516A (en) | 1956-10-03 |
Family
ID=9750128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB300453A Expired GB758516A (en) | 1953-02-03 | 1953-02-03 | Improved change ratio power transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB758516A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3055233A (en) * | 1959-03-17 | 1962-09-25 | Motor Industry Res Ass | Variable ratio transmission mechanism |
| FR3108958A1 (en) | 2020-04-07 | 2021-10-08 | Franck Guigan | Gearbox |
| DE102014116412B4 (en) | 2014-11-11 | 2022-06-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | transmission |
-
1953
- 1953-02-03 GB GB300453A patent/GB758516A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3055233A (en) * | 1959-03-17 | 1962-09-25 | Motor Industry Res Ass | Variable ratio transmission mechanism |
| DE102014116412B4 (en) | 2014-11-11 | 2022-06-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | transmission |
| FR3108958A1 (en) | 2020-04-07 | 2021-10-08 | Franck Guigan | Gearbox |
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