Friction gear transmission systems or components – Fluid control – Of toroidal transmission
Patent
1994-12-12
1997-10-14
Marmor, Charles A.
Friction gear transmission systems or components
Fluid control
Of toroidal transmission
476 40, 476 46, F16H 1538
Patent
active
056766181
ABSTRACT:
A continuously variable transmission comprises a transmission unit and a casing. The transmission unit includes input and output disks on a main shaft and friction rollers arranged around axes of the disks and supported by trunnions. For controlling the speed ratio of the disks, the trunnions are urged by pistons and moved synchronously along own swinging axes perpendicular to the rotating axes of the friction rollers. Neighboring ends of the trunnions are mutually connected by linkage members and pivotally supported by the casing. The pistons can be fitted into the casing 1 from the outer side thereof, and can be detachably connected to the trunnions in the casing. The transmission is provided with a linkage support member, which can be inserted in the casing from an end opening thereof and fixed thereto perpendicular to an axis of the casing. When assembling the transmission, the main shaft is passed through a penetrating hole of the linkage support member, and the linkage members are pivotally supported by the linkage support member. Then, the disks are tightened in mutually closing directions, forming a sub-assembly of the transmission unit 5 without the pistons. Then, the subassembly is inserted in the casing from the end opening thereof and fixed to the casing perpendicularly thereto, while the pistons are fitted into the casing from the outer side thereof and connected to the trunnions of the subassembly in the casing respectively.
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patent: 5417620 (1995-05-01), Lohr et al.
Kobayashi Katsuya
Nakano Masaki
Fenstermacher David M.
Marmor Charles A.
Nissan Motor Co,. Ltd.
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