Cylindrical fluid-filled elastic mount

Details Cylindrical fluid-filled elastic mount Cylindrical fluid-filled elastic mount

2007-03-08

2010-12-07

Siconolfi, Robert A (Department: 3657)

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

C267S219000

Reexamination Certificate

active

07845624

ABSTRACT:
A cylindrical fluid-filled elastic mount which has a structure that avoids or mitigates a deterioration of damping effect, when an outer cylindrical member is subjected to a diameter-reducing operation. A cylindrical fluid-filled elastic mount including; a communication groove connecting a pair of pockets in the circumferential direction formed in an elastic body; fluid chambers provided by the corresponding pockets; an orifice member having a trough-form protrusion in which both-side wall portions provided at an end of the orifice groove are formed by an elastic material. The trough-form protrusion is inserted in the communication groove. At least one hollow groove is provided along the communication groove where the trough-form protrusion is inserted, and the hollow groove is formed longer in the circumferential direction than a length of a protrusion part of the trough-form protrusion.

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