Hydroelastic fluids for fluid filled elastomeric damping devices
AssigneePullman Incorporated
InventorsJoshua R. Goossens, Zoren E. Gaspar
Life of this patent
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Abstract
A vibration damping device has a first support member and a second support member. A first component and a second component are disposed between the first support member and the second support member to define a first fluid chamber and a second fluid chamber. A channel extends between the first and second chambers. During compression and extension of the vibration damping device, fluid transfers between the first and second chamber to provide a damping force for the vibration damping device. The fluid within the chambers of the vibration damping device has a fluid density in the range of 1.25 g/cm3 to 2.2 g/cm3, a fluid viscosity below 10 cSt @ 20° C. and a fluid surface tension below 40 dynes @ 20° C.
Claims20
A vibration damping device comprising:
- a first support member;
- a second support member;
- a first component disposed between the first support member and the second support member;
- a second component disposed between the first support member and the second support member;
- a first chamber defined by said first component;
- a second chamber defined by said second component;
- a channel extending between the first chamber and the second chamber;
- and
- a hydroelastic fluid disposed within said first chamber, said second chamber and said channel, wherein the hydroelastic fluid includes at least one of aqueous brine, a fluorine based fluid and a cesium formate fluid;
- and wherein
- said fluid has a fluid density of 1.25 g/cm3 to 2.2 g/cm3.
A vibration damping device comprising:
- a first support member;
- a second support member;
- a first component disposed between the first support member and the second support member;
- a second component disposed between the first support member and the second support member;
- a first chamber defined by said first component;
- a second chamber defined by said second component;
- a channel extending between the first chamber and the second chamber;
- and
- a hydroelastic fluid disposed within said first chamber, said second chamber and said channel, and wherein the hydroelastic fluid includes at least one of aqueous brine, a fluorine based fluid, and a cesium formate fluid.
Dependencies are inferred from the claim text.