Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Impeller-turbine type fluid circuit in series with planetary...
Patent
1989-01-04
1990-02-27
Braun, Leslie A.
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Impeller-turbine type fluid circuit in series with planetary...
475146, 475148, 475281, F16H 4100, F16H 5700
Patent
active
049035487
ABSTRACT:
In an automatic transmission provided with an automatic transmission mechanism section with a planetary gear unit and a torque converter, a snap ring groove is defined by an annular flange section for a stator shaft and a pump cover, and the reaction from a return spring is borne in the annular flange section. A stator shaft, which bears the stator reaction of a torque converter, is engagingly secured in a center hole section of an oil pump assembly, an annular flange section projecting to the radially outer side is formed at one end of the stator shaft, the snap ring groove is defined from the annular flange section and an annular recessed section of the oil pump assembly to receive the snap ring, and a receiving member for the return spring of the hydraulic actuator is maintained by the snap ring installed in the snap ring groove. Consequently, the return spring, which applies the return force to the piston of the hydraulic actuator, has its reaction force borne at the annular flange section of the stator shaft through the receiving member and the snap ring.
REFERENCES:
patent: 3537553 (1970-11-01), Olsen
patent: 3554057 (1971-01-01), Midnay et al.
patent: 3564938 (1971-02-01), Hause
patent: 3929211 (1975-12-01), Maddock
Hayakawa Youichi
Hosono Chihiro
Nishida Masaaki
Aisin Aw Co. Ltd.
Braun Leslie A.
Ta Khoi Q.
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