The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2002
Filed:
Jun. 22, 2000
Noboru Hattori, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
Provided is a power train system for a vehicle, for transmitting power from a motor to a differential gear unit. The motor and the differential gear unit are disposed so that the output shaft of the motor and an axis of rotation of an output portion of the differential gear unit are parallely offset in the longitudinal direction of the vehicle. The power train system comprises a planetary reduction gear unit connected to the motor to be driven thereby and a parallel reduction gear unit drivingly connecting between the planetary reduction gear unit and the differential gear unit. The planetary reduction gear unit and the parallel reduction gear unit are disposed within a stationary casing. The planetary reduction gear unit includes a sun gear disposed coaxially with and connected to an output shaft of the motor so as to be driven thereby, a ring gear fixedly attached to the casing, at least one pinion gear disposed between the sun gear and the ring gear and a carrier carrying thereon the pinion gear and having an output portion. The parallel reduction gear unit includes a smaller gear and larger gear meshing with each other. The smaller gear has a rotation shaft connected coaxially with the output portion of the carrier. The larger gear is disposed coaxially with an output portion of the differential gear unit. Opposite ends of the rotation shaft of the smaller gear are supported rotatably and directly upon the casing by way of a pair of bearings, respectively.