F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
F16F 13/00 (2006.01) F16F 13/24 (2006.01)
Patent
CA 2125186
A vibration isolator (10) has four fluid-filled variable volume toad-bearing chambers (32a-d), with two arranged on one side of a core (20) and the ether two on the other side. The core (20) and chambers (32a-d) are contained within a frame (12), with the chambers (32a-d) extending between the core (20) and the frame (12), so that vibrating the core (20) axially compresses or ex- tends the chambers (32a-d). Diagonally opposite pairs (32a-d, 32b-c) of chambers (32a-d) are each connected with a separate fluid track (70, 72), and the two fluid tracks (70, 72) may be tuned to have different resonant frequencies or the same resonant fre- quency. The chambers (32a-d) are defined by elastomeric bodies (24a-d) which may be reinforced using a tubular shaped reinfor- cing element (26a-d) adjacent to the chamber (32a-d), to help contain the pressures within the chamber (32a-d) without materially increasing the compression strength of the elastormeric bodies (24a-d). A fluid expansion chamber (50) communicates with the fluid envelope of the chambers (32a-d) and tracks (70, 72) through porous flow restriction elements (64) which allow flow to or from the expansion chamber (50) in response to temperature changes of the fluid but snub significant flow to or from the expand- sion chamber (50) which may otherwise be caused by subjecting the isolator (10) to vibrations.
Banks Edwin L.
Smith Gary T.
Applied Power Inc.
Barry Wright Corporation
Goudreau Gage Dubuc
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