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:
Sep. 04, 2001
Filed:
Apr. 20, 2000
Tadahiko Kato, Shizuoka, JP;
Kazuhisa Shimada, Shizuoka, JP;
Hiroyuki Nakano, Shizuoka, JP;
Kiyonori Hirao, Shizuoka, JP;
Yoshiaki Tajima, Shizuoka, JP;
Toshiharu Takasaki, Kanagawa, JP;
Hirotaka Kusukawa, Machida, JP;
Shigeo Murata, Kanagawa, JP;
Other;
Abstract
A torque characteristic shifting mechanism is provided in an accommodation hole of a rotary valve. The torque characteristic shifting mechanism changes over the torque characteristics in a multi-step manner with an increase of the vehicle velocity by setting the distances so as to meet the relationships R3≈R2>R1 or R2>R3>R1 where R1, R2 and R3 are the distance from a center of rotation of a weight member accommodated rockably around the center of rotation to a center of the ball blocking the drain hole, the distance from the center of rotation to a center of gravity of the weight member and the distance from the center of rotation to a center of a spring, respectively.