Patent ID: 8888079

Claim:
A vibration isolator, comprising: an upper housing defining an upper fluid chamber; a lower housing defining a lower fluid chamber; a piston resiliently disposed within the upper housing and the lower housing; a tuning passage defined by the piston for providing fluid communication between the upper fluid chamber and the lower fluid chamber; a tuning fluid disposed within the tuning passage, the upper fluid chamber, and the lower fluid chamber; an accumulator assembly integrally extending from the upper housing, the accumulator assembly comprising: a reservoir defined by the interior volume of the accumulator assembly, the reservoir comprising: a lower region containing a gas and the tuning fluid; an expanded accumulator region providing supplemental volume for the gas; and a partition at least partially defining the lower region, the expanded accumulator, and an accumulator passage; wherein the accumulator passage provides fluid communication between the lower region and the expanded accumulator region, and wherein the expanded accumulator is separated from the upper fluid chamber by the partition and the lower region; and an external valve configured for facilitating the introduction of the gas into the reservoir, the external valve being at least partially surrounded by the expanded accumulator region; and a passage for providing fluid communication between the lower region of the reservoir and the upper fluid chamber.