Vehicle power transmitting device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorShingo Kato
Life of this patent
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Abstract
In a planetary gear unit 12 of a power transmitting device 10, a sun gear S1 is connected to an electric motor 20, a carrier CA1 is non-rotatably fixed to a case 40, and a ring gear R1 is connected to an output gear 13 and an oil pump 30. As a result, a structure of carrier being fixed/output power being taken out via ring gear is obtained. Therefore, for example, a structure can be employed in which the ring gear and the output gear are integrated. Accordingly, as compared with a structure in which a ring gear is fixed/output power is taken out via carrier and the output gear has to be axially offset and connected to a carrier, an axial space can be omitted, to allow the power transmitting device to be downsized.
Claims5
A vehicle power transmitting device for transmitting power from a power source through a planetary gear unit to an output side,
- the planetary gear unit comprising a sun gear that is connected to the power source, a carrier that is non-rotatably fixed, and a ring gear that is directly connected to an output rotary member, and serving as a reduction mechanism that, with reducing a rotational speed of the power source, transmits a rotation to the output rotary member, wherein
- an oil pump is directly connected to the ring gear, and
- the oil pump is positioned coaxial with the planetary gear unit and at least a part of a structural element of the oil pump is placed on an inner periphery side of an integral rotary member that rotates integrally with the ring gear.
Dependencies are inferred from the claim text.