Patent ID: 6036183
Filing Date: 2000-03-14
Classification: F16F

Abstract:
A hydraulic mount comprising:a first mounting element associated with an elastomeric wall;a partition engaging the elastomeric wall and together with the elastomeric wall defining a working chamber wherein the size of the working chamber varies as the elastomeric wall is compressed and expanded by operation of the first mounting element and the partition moving closer together and farther apart;a reservoir defined on an opposite side of the partition from the working chamber substantially by a relatively flexible diaphragm, wherein the diaphragm includes an outside surface that is exposed to atmospheric pressure;a value body positioned at the partition providing a normally open fluid path extending through the partition and opening between the working chamber and the reservoir wherein a fluid is contained in the working chamber, the reservoir and the fluid path, wherein the valve body and the partition together define a control chamber in the fluid path wherein the control chamber is open to the reservoir through a lateral opening in the valve body so that a first fluid pressure in the control chamber is continuously approximately equal to a second fluid pressure in the reservoir that is approximately at atmospheric pressure; andan actuator engaging the valve body wherein the valve body includes an arm that extends through the diaphragm.