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:
Apr. 27, 2004
Filed:
Jul. 15, 2002
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The four-wheel drive system for vehicles has a center differential mechanism that divides the rotational driving force from the engine E between the front and rear wheels, and a front wheel side axle differential mechanism that divides this divided rotational driving force between the left and right front wheels. The center differential mechanism is constructed from a single pinion type first planetary gear device which has a first carrier that receives the rotational driving force from the engine E, a first sun gear , and a first ring gear that is connected to the rear wheel side, and the axle differential mechanism is constructed from a double pinion type second planetary gear device which has a second ring gear that is connected to the first sun gear , a second sun gear that is connected to the right front wheel, and a second carrier that is connected to the left front wheel. The first and second planetary gear devices are disposed adjacent to each other in a coaxial configuration.