Fluid-filled vibration damping device

Details Fluid-filled vibration damping device Fluid-filled vibration damping device

2006-05-16

2006-05-16

McClellan, James (Department: 3683)

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

C267S140110, C267S140120

Reexamination Certificate

active

07044455

ABSTRACT:
A fluid-filled vibration-damping device including a first and a second mounting members elastically connected by an elastic body such that the first mounting member is located on the side of one open end of a cylindrical portion of the second mounting member. The elastic body partially defines a primary fluid chamber formed in the cylindrical portion of the second mounting member and held in fluid communication with an auxiliary fluid chamber through a first orifice passage, and includes a pair of working fluid chambers held in fluid communication through a second orifice passage. Each working fluid chamber is partially defined by an axially outer elastic wall portion and an axially inner elastic wall portion whose spring constant in a radial direction is larger than that of the axially outer wall portion.

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