Automatic transmission for vehicles
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 13, 1990
Issued Date -
N/A
app pub date -
Feb 6, 1989
filing date -
Aug 3, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic transmission for motor vehicles, including a first shaft rotatably supported by the automatic transmission case and consisting of an input shaft coupled with the engine output shaft through a joint like a fluid joint or a friction clutch and an output shaft disposed in series and coaxially with the input shaft and mounting an output gear; a second shaft consisting of a long shaft rotatably supported by the transmission case parallel with the first shaft and a short shaft rotatably mounted on the long shaft, one of the long and short shafts having an input gear connected to the output gear of the first shaft by direct meshing engagement therewith or through a chain or an idler gear while the other one having an output gear mounted thereon; a differential having a large drive gear connected to the output gear of the second shaft by direct meshing engagement therewith or through a chain or an idler gear; a first speed-changing planetary gear mechanism provided between the input and output shafts of the first shaft; and a second speed-changing planetary gear mechanism provided between the input and output shafts of the second shaft.
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