VIBRATION DAMPING DEVICE OF INVERTED STRUCTURE
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United States of America
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Issued Date -
Jan 16, 2020
app pub date -
Jul 9, 2019
filing date -
Jul 9, 2019
priority date (Note) -
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Abstract
A vibration damping device of an inverted structure includes a cylinder, a rod capable of protruding and retracting in the cylinder, an outer cylinder coupled to the rod and inserted over the outer periphery of the cylinder, and a bush slidably inserted between the outer cylinder and the cylinder. A gap between the outer cylinder and the cylinder is filled with lubricating oil. The bush contains polytetrafluoroethylene and perfluoro alkoxy alkane. The lubricating oil contains an organic molybdenum additive.
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