WO1994013980A1 - Transmission a convertisseur de couple et a train planetaire - Google Patents
Transmission a convertisseur de couple et a train planetaire Download PDFInfo
- Publication number
- WO1994013980A1 WO1994013980A1 PCT/CA1993/000534 CA9300534W WO9413980A1 WO 1994013980 A1 WO1994013980 A1 WO 1994013980A1 CA 9300534 W CA9300534 W CA 9300534W WO 9413980 A1 WO9413980 A1 WO 9413980A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sun gear
- teeth
- planetary
- gear
- combination
- Prior art date
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
- F16H47/085—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 with at least two mechanical connections between the hydraulic device and the mechanical transmissions
Definitions
- This invention relates to automatic transmissions and more particularly to an automatic transmission having a torque converter and a planetary gear train.
- Known automatic transmissions use torque-converter couplings with planetary gear trains.
- the gear trains can supply one or more gear reductions and reverse, depending upon the design, by simultaneously engaging or locking various elements of the planetary systems.
- the combination comprises a first sun gear fixedly mounted to the output shaft; a first planetary gear meshing with the sun gear; a carrier to which the planetary gear is mounted for rotation and which is rotated by the input shaft; a second planetary gear rotated by the first planetary gear; and a drive shaft in co-axial alignment with the output shaft and having a second sun gear which is fixedly mounted thereon and which meshes with the second planetary gear.
- Figure 1 is a perspective view of the combination shown in conjunction with a fly wheel, clutch and throw-out gear of a conventional power train;
- Figure 2 is a plan view of the components illustrated in Figure 1 , shown partly cut away, together with a conventional reversing mechanism;
- Figure 3 is an elevation of a portion of the planetary gear train
- Figure 4 is another elevation of the planetary gear train.
- a torque converter indicated generally 10 and a planetary gear train, generally 12 are shown in conjunction with a flywheel 14, a clutch 16 and a throw-out bearing unit 18.
- the flywheel, clutch and bearing unit are of conventional construction.
- the torque converter may be any device which changes the torque speed or mechanical advantage, between an input shaft and an output shaft.
- the illustrated torque converter is of conventional construction where the input shaft 20 drives the pump impeller and energy is transferred from the impeller to the fluid within the converter as the pump builds up speed.
- the fluid flows from the inlet radius to the outlet radius and discharges from the impeller. From the impeller, the fluid enters the turbine runner and causes the runner to rotate with resulting rotation of the output shaft 22.
- the outer shell or body 24 of the turbine is connected to the input shaft 20 so that as the shaft rotates so too does the body.
- the planetary gear train includes a first sun gear 26 which is keyed to output shaft 22.
- the sun gear meshes with a pair of first planetary gears 28a,b. As illustrated the latter gears are disposed on diametrically opposite sides of the sun gear.
- Each planetary gear is keyed to a separate planetary axle or shaft 30a, b and the shafts are mounted in bearings in a carrier plate 32.
- the carrier plate is integral with the body 24 of the turbine so that as the body rotates so too does the carrier.
- the carrier will be in the form of a hollow cylinder within which the torque converter and gears 26 and 28 are located.
- the cylinder contains oil to lubricate the gears.
- each planetary shaft on the side of the carrier opposite the first planetary gear is a second planetary gear 34a, b.
- the latter gears mesh with a second sun gear 36.
- the sun gear is keyed to a drive shaft 38 and that shaft drives a conventional reversing mechanism 40.
- Drive shaft 38 and output shaft 22 are in co-axial alignment but are not connected to each other.
- Sun gear 26 and second planetary gears 34 have outer diameters of equal length and have an equal number of teeth.
- sun gear 36 and the first planetary gears 28 have outer diameters of equal length and have the same number of teeth.
- the sun gear 26 has 24 teeth and the first planetary gears 28 have 36 teeth.
- the planetary gears 28 rotate 24/36 or 2/ 3rds of a revolution.
- the second planetary gears will likewise rotate 2/3rds of a revolution thereby causing the sun gear 36 to rotate 2/3 x 24/36 or 4/9ths of a revolution.
- the drive shaft 38 rotates once.
- Gears of such dimensions are appropriate in motor vehicles that have small to medium sized engines of no more than about 100 horsepower. In vehicles having larger engines gears of different dimensions may be more appropriate.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
La transmission automatique comporte un convertisseur de couple (10) et un train planétaire (12). Ce dernier comprend une première roue solaire (26) qui est clavetée sur l'arbre de sortie (22) du convertisseur de couple (10). Un premier pignon planétaire (28) s'engrène avec la roue solaire (26) et ce pignon (28) est claveté sur un axe (30). Ce dernier est monté en rotation sur un support (32) mis en rotation par l'arbre d'entrée (20) du convertisseur de couple (10) de sorte que lorsque le support (32) tourne, l'axe (30) tourne également. Un deuxième pignon planétaire (34) est également claveté sur l'axe (30) et ce pignon (34) s'engrène avec une deuxième roue solaire (36), laquelle fait tourner un arbre de commande (38).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU56214/94A AU5621494A (en) | 1992-12-10 | 1993-12-10 | Transmission having torque converter and planetary gear train |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002085022A CA2085022C (fr) | 1992-12-10 | 1992-12-10 | Transmission presentant un convertisseur de couple et un train planetaire |
CA2,085,022 | 1992-12-10 | ||
US08/111,861 | 1993-08-26 | ||
US08/111,861 US6210297B1 (en) | 1992-12-10 | 1993-08-26 | Transmission having torque converter and planetary gear train |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994013980A1 true WO1994013980A1 (fr) | 1994-06-23 |
Family
ID=25675728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1993/000534 WO1994013980A1 (fr) | 1992-12-10 | 1993-12-10 | Transmission a convertisseur de couple et a train planetaire |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU5621494A (fr) |
WO (1) | WO1994013980A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1142070C (zh) * | 2000-12-20 | 2004-03-17 | 李定州 | 液力机械无级变速器 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1209435A (fr) * | 1958-08-06 | 1960-03-01 | Perfectionnements aux transmissions à variation continue de vitesse | |
US3163056A (en) * | 1961-11-10 | 1964-12-29 | William J Clarke | Torque and speed control units |
GB1554182A (en) * | 1976-05-04 | 1979-10-17 | Read R | Gearboxes |
-
1993
- 1993-12-10 WO PCT/CA1993/000534 patent/WO1994013980A1/fr active Application Filing
- 1993-12-10 AU AU56214/94A patent/AU5621494A/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1209435A (fr) * | 1958-08-06 | 1960-03-01 | Perfectionnements aux transmissions à variation continue de vitesse | |
US3163056A (en) * | 1961-11-10 | 1964-12-29 | William J Clarke | Torque and speed control units |
GB1554182A (en) * | 1976-05-04 | 1979-10-17 | Read R | Gearboxes |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1142070C (zh) * | 2000-12-20 | 2004-03-17 | 李定州 | 液力机械无级变速器 |
Also Published As
Publication number | Publication date |
---|---|
AU5621494A (en) | 1994-07-04 |
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