Drive device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsEiji Ito, Koichi Okuda, Atsushi Tabata
Life of this patent
Estimating the term…
Abstract
A drive device mounted on a vehicle, the drive device comprising: an electric motor housed in the electric motor chamber; a first shaft arranged parallel to or coaxial with a rotor shaft of the electric motor; a counter gear for transmitting rotation of the rotor shaft to the first shaft; a second shaft for rotating wheels of the vehicle; a hypoid gear for transmitting rotation of the first shaft to the second shaft; an oil seal for sealing a gap between the first shaft and the case; a first lubricating oil housed in the electric motor chamber and the counter gear chamber; and a second lubricating oil housed in the hypoid gear chamber.
Claims6
A drive device mounted on a vehicle, the drive device comprising:
- a case including an electric motor chamber, a counter gear chamber, and a hypoid gear chamber, the counter gear chamber and the hypoid gear chamber being separated by a partition wall, and the partition wall having a through-hole;
- an electric motor housed in the electric motor chamber;
- a first shaft that is disposed parallel to or coaxial with a rotor shaft of the electric motor and extends from the counter gear chamber to the hypoid gear chamber;
- a counter gear that is housed in the counter gear chamber and transmits rotation of the rotor shaft to the first shaft;
- a second shaft that extends from the hypoid gear chamber to an outside of the case and rotates a wheel of the vehicle;
- a hypoid gear that is housed in the hypoid gear chamber and transmits rotation of the first shaft to the second shaft;
- an oil seal that seals a gap between an outer peripheral surface of the first shaft and an inner peripheral surface of the through-hole;
- a first lubricating oil stored in the electric motor chamber and the counter gear chamber;
- and
- a second lubricating oil stored in the hypoid gear chamber.
Dependencies are inferred from the claim text.