Other

Nissan Motor Company Limited

Jatco Corporation

Masayuki Nagai

Masao Teraoka

Masaki Nakano

Haruhito Mori

Yasuhiko Ishikawa

A power transmission system which includes a transmission device and a power transfer system. The transmission device includes an input shaft to which a drive force from a motor is inputted, a transmission mechanism arranged coaxially with the input shaft, and a countershaft parallel to the input shaft. The power transfer system distributes the drive force transmitted to the countershaft to front and rear wheels, and includes a sub transmission mechanism coaxially arranged in an end of the countershaft.

Power transmission system with sub transmission mechanism

A power transmission system includes an input shaft, a toroidal CVT arranged on the input shaft, a countershaft arranged parallel with the input shaft for transferring power output from the CVT to wheels, a power distributing device for distributing power from the countershaft to the front and rear wheels, a first casing for defining a first compartment accommodating the CVT, a second casing disposed adjacent to the first casing and for defining a second compartment accommodating the power distributing device, a separation wall arranged between the first compartment and the second compartment and for sealing the compartments in a fluid-tight manner, and first and second oils charged in the first and second compartments and having different characteristics.

Power transmission system

A transmission apparatus ( ) outputs drive power of a motor, from a speed changing mechanism ( ), via a sub-shaft ( ), a power distribution apparatus ( ) transmits rotation of an input end member ( ) linked to the sub-shaft ( ), via output shafts ( ), to the front-wheel end and the rear-wheel end, and the sub-shaft ( ) and the power distribution apparatus ( ) are disposed in an axially overlapping relationship.

Drive power transmission apparatus

A lubricating structure comprises an output gear 22 rotating as a unit with an output shaft 3 of a transmission mechanism, a gear 25 rotating as a unit with a counter shaft 27 and engaged with the gear 22, a gear 60 rotating as a unit with the shaft 27 and disposed spaced from the gear 25 in an axial direction, a bearing 26 and bearing 28b for rotatably supporting the shaft 27 respectively at a gear 25 side and a gear 60 side, a driving gear 65 disposed above the gear 60 and engaged with the gear 60 through an intermediate gear, a case 1a for individually accommodating through a separating wall the bearing 28b, a bearing at an intermediate gear side, and a bearing 67 at a gear 65 side, and feed paths 62,64 formed within the shaft 27 for introducing oil moved into an accommodating portion 70 of the gear 28b in the case 1a to a gear 25 side thereby to supply the oil to a predetermined portion. Furthermore, a void groove 76 is formed in the separating wall 69 between the accommodating portion 70 and an accommodating portion at an intermediate gear side.

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Fuji, Japan

Masayuki Nagai