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1. (WO1991007603) AUTOMATIC TRANSMISSION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007603 International Application No.: PCT/JP1990/001480
Publication Date: 30.05.1991 International Filing Date: 15.11.1990
IPC:
F16D 25/10 (2006.01) ,F16H 57/08 (2006.01) ,F16H 63/30 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
25
Fluid-actuated clutches
10
Clutch systems with a plurality of fluid-actuated clutches
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
57
General details of gearing
08
of gearings with members having orbital motion
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
63
Control outputs to change-speed- or reversing-gearings for conveying rotary motion
02
Final output mechanisms therefor; Actuating means for the final output mechanisms
30
Constructional features of the final output mechanisms
Applicants:
AISIN-AW KABUSHIKI KAISHA [JP/JP]; 10, Takane Fujii-cho Anjo-shi Aichi 444-11, JP (AllExceptUS)
NISHIDA, Masaaki [JP/JP]; JP (UsOnly)
HOSONO, Chihiro [JP/JP]; JP (UsOnly)
HAYAKAWA, Yoichi [JP/JP]; JP (UsOnly)
Inventors:
NISHIDA, Masaaki; JP
HOSONO, Chihiro; JP
HAYAKAWA, Yoichi; JP
Priority Data:
1/29482515.11.1989JP
Title (EN) AUTOMATIC TRANSMISSION
(FR) TRANSMISSION AUTOMATIQUE
Abstract:
(EN) This invention relates to an automatic transmission for a motor vehicle. A plurality of brakes and clutches have heretofore been independently provided in the axial direction and engaging or disengaging has been made independently when a gear stage for each range is selected, so that the size in the axial direction could not be shortened. The present invention intends to resolve the above-described problem and provides an automatic transmission in which the size in the axial direction is shortened, so that two multi-disc clutches (C3, CO) indenpendently engageable with or disengageable from an outer cylinder (108) are provided in series in the axial direction, and grooves (125), through which penetrate upline tubes (126) extending between a first piston (110) and the clutch (CO), are provided at a plurality of positions in the clutch (C3). When a second piston (112) is operated, the clutch (C3) is engaged or disengaged. Furthermore, when the first piston (110) is operated, the upline tube (126) extending between the first piston (110) and the clutch (CO) is operated together with the first piston (110), whereby the clutch (CO) is engaged or disengaged. For this reason, according to the present invention, no interference takes place between the both clutches (CO, C3) when one clutch (CO) is released in a state where the other clutch (C3) is engaged.
(FR) Transmission automatique pour véhicules à moteur. Dans l'état antérieur de la technique, une pluralité de freins et d'embrayages indépendants axiaux sont utilisés et leur embrayage ou débrayage sont effectués indépendamment lorsqu'une vitesse de chaque plage est sélectionnée, de sorte que les dimensions axiales ne peuvent pas être réduites. Afin de résoudre ce problème et d'obtenir une transmission automatique à dimensions axiales réduites, deux embrayages (C3, CO) à disques multiples indépendamment embrayables ou débrayables par rapport à un cylindre extérieur (108) sont agencés en série dans le sens axial. L'embrayage (C3) est pourvu de rainures (125) agencées dans différentes positions dans lesquelles pénètreent des tubes montants (126) qui s'étendent entre un premier piston (110) et l'embrayage (CO). Lorsqu'un deuxième piston (112) est actionné, l'embrayage (C3) mis en prise ou désaccouplé. En outre, lorsque le premier piston (110) est actionné, le tube montant (126) qui s'étend entre le premier piston (110) et l'embrayage (CO) est actionné en même temps que le premier piston (110), ce qui met en prise ou désaccouple l'embrayage (CO). Par conséquent, aucune interférence ne se produit entre les deux embrayages (CO, C3) lorsqu'un embrayage (CO) est désaccouplé alors que l'autre embrayage (C3) est en prise.
Designated States: US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP0454866US5230411