Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Impeller-turbine type fluid circuit and mechanical path in...
Patent
1998-07-27
1999-09-28
Wright, Dirk
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Impeller-turbine type fluid circuit and mechanical path in...
F16H 6138
Patent
active
059577991
ABSTRACT:
An automatic transmission comprises a torque converter, a torque converter case for accommodating the torque converter, a transmission, an input shaft for connecting the torque converter with the transmission, a forward and reverse changeover apparatus including a planetary gear, a planetary carrier and a reverse brake, comprising, a forward clutch drum connected with the input shaft, a forward clutch plate provided between the forward clutch drum and the planetary carrier, a lock-up clutch drum connected with the torque converter case, a lock-up clutch plate provided between the forward clutch drum and the lock-up clutch drum, a lock-up clutch piston slidably fitted to the input shaft for engaging and releasing the lock-up clutch plate and provided inside of said forward clutch drum between the forward clutch drum and the forward and reverse changeover apparatus, a forward clutch piston slidably fitted to the input shaft for engaging and releasing the forward clutch plate and provided inside of the forward clutch drum between the lock-up clutch piston and the forward and reverse changeover apparatus, a first pressure chamber provided between the forward clutch piston and the lock-up clutch piston for operating the forward clutch piston, and a second pressure chamber provided between the lock-up clutch piston and the forward clutch drum for operating the lock-up clutch piston.
REFERENCES:
patent: 4018106 (1977-04-01), Uozumi et al.
patent: 4382393 (1983-05-01), Bowen
patent: 5334112 (1994-08-01), Nogle et al.
patent: 5700219 (1997-12-01), Ohkubo
Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
Wright Dirk
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