Bi-state hydraulic mount with annular decoupler

A hydraulic mount comprising:

• first and second mounting elements;
• an elastomeric body connected to one of said mounting elements;
• a base plate connected to the other of said mounting elements and operably connected to said elastomeric body;
• a partition interposed between said elastomeric body and said base plate;
• a fluid reservoir chamber formed between said base plate and said partition and a fluid pumping chamber formed between said elastomeric body and said partition;
• a valve body and a valve closure member associated with said valve body and movable between a first position to allow relatively free flow of fluid between said chambers and a second position to substantially restrict fluid flow between said chambers;
• and
• a decoupler operable to isolate vibrations imposed on said mount comprising an annular member movable within a recess in said partition and in communication with one of said chambers through one or more orifices formed in said partition.

A hydraulic mount comprising:

• an elastomeric body;
• a base plate;
• a partition interposed between said elastomeric body and said base plate;
• a fluid reservoir chamber formed between said base plate and said partition and a fluid pumping chamber formed between said elastomeric body and said partition;
• a valve body connected to said partition;
• a valve closure member associated with said valve body and movable between a first position to allow relatively free flow of fluid between said chambers and a second position to substantially restrict fluid flow between said chambers;
• an actuator connected to said closure member for moving said closure member between said first and second positions;
• and
• an annular decoupler supported on said partition and operable to isolate vibrations imposed on said mount.