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:
Dec. 20, 2005
Filed:
Feb. 12, 2004
Hisanao Kitabayashi, Chitose, JP;
Hisanao Kitabayashi, Chitose, JP;
Dynax Corporation, Chitose, JP;
Abstract
A wet-type friction engaging apparatuscomprises a friction diskwhich is fitted by spline with a huband a mating platewhich is fitted by spline with a drum D. The friction diskand the mating plateare arranged alternately, and torque is transmitted when the friction diskand the mating plateare engaged with each other. The inner surface of the hubis in a stepped taper shape in order to let lubricating oil B leak from an opening endof the hub, and an oil boreis provided in each step in a radial direction of the hub. A periphery of an inlet of each oil boreis in a concave shape. During low-speed rotation when centrifugal force is relatively small, the lubricating oil B leaks from the opening endof the huband drag torque is reduced, and during high-speed rotation when centrifugal force is relatively large, lubricating oil which splashes from a shaft is securely concentrated and then be drained through the oil bore