Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Patent
1994-12-27
1996-04-02
Marmor, Charles A.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
475281, 475292, F16H 362
Patent
active
055036040
ABSTRACT:
A multiple-speed automatic transmission for automotive vehicles able to produce three underdrive speed ratios, a near direct ratio, and two overdrive ratios. A kinematic arrangement includes three simple planetary gear units (48, 50, 52). One of these produces an underdrive output drivably connected to components of the other gear units, three friction clutches (118, 120, 122) to friction brakes (124, 126), an overrunning coupling (82), a final drive gearset (94), a differential mechanism (102), a chain drive mechanism (30) for transmitting power from the turbine (16) of a torque converter (10) to the input shaft, which drives elements of the planetary gear units.
REFERENCES:
patent: 5039305 (1991-08-01), Pierce
patent: 5069656 (1991-12-01), Sherman
patent: 5106352 (1992-04-01), Lepelletier
patent: 5230671 (1993-07-01), Michioka et al.
patent: 5250011 (1993-10-01), Pierce
patent: 5267913 (1993-12-01), Biem et al.
patent: 5267916 (1993-12-01), Biem et al.
USSN 08/103,373, filed Aug. 9, 1993, "Multiple Speed Automatic Transmission for Automotive Vehicles", to Pierce.
Justice Clinton F.
Pierce Stanley L.
Estremsky Sherry
Ford Motor Company
Marmor Charles A.
May Roger L.
McKenzie Frank G.
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