GB906693A - Improvements in or relating to variable speed power transmissions - Google Patents
Improvements in or relating to variable speed power transmissionsInfo
- Publication number
- GB906693A GB906693A GB253458A GB253458A GB906693A GB 906693 A GB906693 A GB 906693A GB 253458 A GB253458 A GB 253458A GB 253458 A GB253458 A GB 253458A GB 906693 A GB906693 A GB 906693A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- speed
- shaft
- booster
- input shaft
- 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
-
- 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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/48—Control of exclusively fluid gearing hydrodynamic
- F16H61/50—Control of exclusively fluid gearing hydrodynamic controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit
- F16H61/58—Control of exclusively fluid gearing hydrodynamic controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit by change of the mechanical connection of, or between, the runners
- F16H61/62—Control of exclusively fluid gearing hydrodynamic controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit by change of the mechanical connection of, or between, the runners involving use of a speed-changing gearing or of a clutch in the connection between runners
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
906,693. Pneumatic transmission of power. PERKINS Ltd., F. Jan. 15, 1959 [Jan. 24, 1958], No. 2534/58. Class 8(2). [Also in Groups XXIX and XXXI]. A variable speed power transmission comprises a torque converter having an input shaft 13 driven from a prime mover, such as a combustion engine and an output shaft 24 connected to a mechanism to be driven, and a booster for the prime mover driven through a differential gear 29, 30, 32, 36 from the input and output shafts so that when under load the output shaft speed falls to a percentage of the input shaft then the booster rotary speed increases relative to the input shaft speed by a higher percentage. In the preferred embodiment, the torque converter, which may be hydrostatic, pneumatic or electro-magnetic, is of the hydro-kinetic type having an impeller 16 secured to a casing 14 connected to the input shaft 13, a turbine 22 splined to the output shaft 24, and a reactor 20 connected to a one-way free-wheel device 20 to a stationary stub shaft 18 secured to a fixed outer casing 10. The impeller, and hence the input shaft, is connected to a gear 27 meshing with a gear 29 of the differential, and a gear 28 on the output shaft meshes with a further gear 30 of the differential. The gear 29 is rotatably mounted on a shaft 35 and secured to a planet carrier 31 carrying gears 32 in mesh with an internallytoothed ring gear 7 which is secured to the gear 30 and engages a gear 36 formed on the shaft 35 rotatably mounted in bearings 6 in the fixed casing and connected to the booster (not shown). When starting a vehicle from rest with full throttle, the output shaft is stationary and the input shaft rotated at high speed. The differential gear, depending on its ratio, drives the booster, which may be a supercharger, turbo-blower or Roots blower, at a correspondingly higher speed. As the vehicle accelerates and the difference in speeds of the input and output shafts decreases, the speed of the booster will decrease until when both shafts rotate at substantially the same speed, the speed of the booster will be directly related to the engine speed. If the speed of the output shaft decreases, the relative increase in speed of the input shaft to that of the output shaft will increase the speed of the booster. The gear 27 on the input shaft also engages a gear 37 driving gear pumps 38, 39, the former pumping drained oil from a sump 43 to an external tank, filter and cooler, and the latter supplying oil under pressure to the converter and for lubrication purposes. Oil from the pump is also passed, under the control of a valve actuated manually or by a device sensitive to speed, torque or engine boost pressure, through a sleeve on the shaft 24 and passages 5 to an annular piston 41 to operate a clutch 40 and connect the turbine 22 to the impeller casing 14 for direct drive. A forward-andreverse gear may be incorporated in the transmission.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB253458A GB906693A (en) | 1958-01-24 | 1958-01-24 | Improvements in or relating to variable speed power transmissions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB253458A GB906693A (en) | 1958-01-24 | 1958-01-24 | Improvements in or relating to variable speed power transmissions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB906693A true GB906693A (en) | 1962-09-26 |
Family
ID=9741259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB253458A Expired GB906693A (en) | 1958-01-24 | 1958-01-24 | Improvements in or relating to variable speed power transmissions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB906693A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114033817A (en) * | 2021-11-12 | 2022-02-11 | 北京科技大学 | Self-cooling hydraulic retarder for heavy vehicle |
-
1958
- 1958-01-24 GB GB253458A patent/GB906693A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114033817A (en) * | 2021-11-12 | 2022-02-11 | 北京科技大学 | Self-cooling hydraulic retarder for heavy vehicle |
CN114033817B (en) * | 2021-11-12 | 2022-09-20 | 北京科技大学 | Self-cooling hydraulic retarder for heavy vehicle |
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