Compact change speed transmission
A change speed transmission is described comprising: a stationary part; an input member; an output member; first and second planetary gear sets; clutch and brake means for selectively controlling the first and second planetary gear sets to provide a plurality of forward speed rations and a reverse speed ratio between the input and output member; the clutch and brake means including a first clutch, a first one-way clutch, and a second one-way clutch which, when the first clutch is engaged, provide a path of transmission of reaction to the stationary part thereby establishing a path of transmission of torque through at least a part of the first and second planetary gear sets to achieve a predetermined one speed ratio of the forward speed ratios; the clutch and brake means including also a brake and a second slutch which, when both of the brake and the second clutch are engaged, hinder the action of the second one-way clutch and that of the first one-way clutch, respectively, thereby providing engine braking during running with the predetermined one speed ratio; the first clutch including means forming a drum-shaped member disposed radially outwardly of and receiving at least one of the first and second planetary gear sets, and an actuating piston of the first clutch; and the second clutch including an actuating piston slidably disposed within the actuating piston of the first clutch.
- Assignee:
- Nissan Motor Co., Ltd., Yokohama
- Patent Number(s):
- US 4836052
- OSTI ID:
- 5527175
- Resource Relation:
- Patent File Date: 23 Mar 1987
- Country of Publication:
- United States
- Language:
- English
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