Machine element or mechanism – Elements – Flywheel – motion smoothing-type
Reexamination Certificate
2003-05-30
2008-11-11
Luong, Vinh T. (Department: 3682)
Machine element or mechanism
Elements
Flywheel, motion smoothing-type
C074S572200, C074S604000
Reexamination Certificate
active
07448298
ABSTRACT:
A viscous damper having an annular inertial mass body received in a case together with a damping liquid, and a hub for fixing the case on the rotary shaft of an internal combustion engine. The case including a case main body of substantially U-shaped cross section, and a cover for liquid-tightly closing an opening directed to one axial side of the main body, and defining a sealed chamber in the inside. The inertial mass body is made by superposing and joining a plurality of annular plates. By thrust bearings attached in holes in the annular plate on body axial sides of the inertial mass body and by a journal bearing attached in a recessed groove in the inner periphery of the inertial mass body, the inertial mass body is supported both axial sides and radially and disposed for peripheral rotation in the sealed chamber.
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Isono Masakazu
Ohki Kazumi
Watanabe Hideaki
Yoshida Takashi
Arent & Fox LLP
Fukoku Co., Ltd.
Luong Vinh T.
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