Continuously variable automatic transmission
OwnerChristopher F. Mayraneninventor
Life of this patent
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Abstract
A gear-type continuously variable automatic transmission that adjusts ratio in response to load. A pair of planetary gear systems with different static ratio properties combined to produce a dynamic, load responsive rotary transmission utilizing the rings or planet carriers of each planetary system as input and output respectively.
Claims13
An automatic continuously variable transmission using an all-gear configuration, said transmission comprising:
- a drive planetary gear system comprising an input ring gear in meshing relation to a plurality of input drive planet gears, said input drive planet gears are in meshing engagement to a dual-sun gear;
- a driven planetary gear system comprising a dual-sun gear in meshing engagement to a plurality of output drive planet gears, said output drive planet gears in meshing engagement to an output ring gear;
- and
- wherein said drive planetary gear system, and said driven planetary gear system are each connected to said dual-sun gear, said dual sun gear having a drive side, and a driven side, said drive side being in meshing relation to said drive planetary gear system, said driven side being in meshing engagement to said driven planetary gear system.
An automatic continuously variable transmission using an all-gear configuration, said transmission comprising:
- a drive planetary gear system comprising an input ring gear in meshing relation to a plurality of input drive planet gears, said input drive planet are in meshing engagement to a drive sun gear;
- and
- a driven planetary gear system comprising a driven sun gear in meshing engagement to a plurality of output drive planet gears, said output drive planet gears in meshing engagement to an output ring gear,
- wherein said drive sun gear and said driven sun gear are fixedly attached to a common axle forming a dual-sun gear, and wherein said drive planetary gear system, and said driven planetary gear system are connected through said dual-sun gear.
An automatic continuously variable transmission using an all-gear configuration, said transmission comprising:
- a drive planetary gear system comprising a drive carrier in meshing relation to a plurality of input drive planet gears, said input drive planet gears are in meshing engagement to a dual-sun gear and a ring gear;
- a driven planetary gear system comprising a dual-sun gear in meshing engagement to a plurality of output drive planet gears, said output drive planet gears in meshing engagement with a driven carrier and said ring gear;
- and
- wherein said drive planetary gear system, and said driven planetary gear system are each connected to said dual-sun gear, said dual sun gear having a drive side, and a driven side, said drive side being in meshing relation to said drive planetary gear system, said driven side being in meshing engagement to said driven planetary gear system, and wherein said drive planetary gear system, and said driven planetary gear system are in meshing engagement with said ring gear.
Dependencies are inferred from the claim text.