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:
Oct. 17, 1995
Filed:
Jul. 16, 1993
Masao Teraoka, Tochigi, JP;
Satoshi Aiba, Tochigi, JP;
Kenji Hiraishi, Tochigi, JP;
Shuhei Ono, Tochigi, JP;
Tochigifujisangyo Kabushiki Kaisha, Tochigi, JP;
Abstract
A differential apparatus comprises: a differential casing; a first side gear rotatably arranged within the differential casing and connected to the first shaft; a second side gear rotatably arranged within the differential casing in parallel to the first side gear and connected to the second shaft; at least one short pinion gear housed in a bore formed in the differential casing so as to be rotated within the bore and around the first and second side gears together with the differential casing; at least one long pinion gear housed in another bore formed in the differential casing in parallel to and in mesh with the short pinion gear so as to be rotated within the bore and around the first and second side gears together with the differential casing; and a viscous coupling. The first and second side gears are geared to each other through the short and long pinion gears so as to be rotated differentially relative to each other, when the short and long pinion gears are driven by the differential casing. The differential apparatus can generate a torque sensitive differential limiting force uniform both when a torque is transmitted to the first shaft under the condition that the second shaft is being idled and when a torque is transmitted to the second shaft under the condition that the first shaft is being idled; and a speed sensitive differential limiting force generated by the viscous coupling.