Overdrive device for automatic transmission

Details Overdrive device for automatic transmission Overdrive device for automatic transmission

1977-08-02

1979-04-10

Scott, Samuel

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74467, 184 612, F16H 128

Patent

active

041482298

ABSTRACT:
An overdrive device including an input shaft coupled to a fluid-coupling type torque converter, an output shaft coupled to a plurality of auxiliary transmissions each having one or more reduction gear ratios, and planet pinions which are supported by pinion shafts through the medium of two or more needle bearings positioned in a side-by-side relationship in the axial direction of the pinion shafts thereon, and maintained in mesh with a sun gear and a ring gear. The pinion shafts include lubricating oil passages running therethrough, respectively, thereby feeding lubricating oil to the needle bearings at a given pressure. The overdrive device is positioned between the fluid-coupling type torque converter and the auxiliary transmission, so that the size of the automatic transmission is reduced.

REFERENCES:
patent: 2408336 (1946-09-01), Orr
patent: 2599215 (1952-06-01), Wemp
patent: 3583526 (1971-06-01), Mulleder et al.
patent: 3821908 (1974-07-01), Marsch et al.
patent: 4043223 (1977-08-01), Ohnuma et al.

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