Fluid and elastomer apparatus with discrete volume compensator and secondary compliance

A fluid and elastomer device (10) for isolating dynamic loading between members connected to the device, the fluid and elastomer device comprising: an inner member (12) that defines a compliance chamber (18); an outer member (24) that defines an outer housing chamber; an elastomeric element (20) flexibly interconnecting said inner member relative to said outer member; a passageway (46) located in the compliance chamber and flow connecting the compliance chamber with a primary working chamber (29); a secondary compliance member (40) joined to the passageway in the compliance chamber; a volume compensator (50) located in the housing chamber the volume compensator comprising spring means (52), piston member (54) at one spring end and a diaphragm member (58) that overlies the piston; a member (60) located between the compliance and housing chambers, the member being moveable with the outer housing, the moveable member in combination with the diaphragm defining a compensator chamber; and a volume of working fluid in said chambers and passageway.