Patent ID: 8132796
Filing Date: 2012-03-13
Classification: F16F

Abstract:
1. A fluid filled type vibration damping device comprising: a first mounting member; a second mounting member of tubular shape, the first mounting member being disposed on a side of one opening of the second mounting member; a main rubber elastic body elastically connecting the first mounting member and the second mounting member; a flexible film by which an other opening of the second mounting member is sealed off fluid-tightly, thereby forming between opposing faces of the main rubber elastic body and the flexible film a fluid chamber in which a non-compressible fluid is sealed; a partition member supported by the second mounting member, with the fluid chamber divided by the partition member into a primary fluid chamber whose wall is partially defined by the main rubber elastic body and an auxiliary fluid chamber whose wall is partially defined by the flexible film, and with an orifice passage connecting the primary fluid chamber and the auxiliary fluid chamber being formed; an elastic rubber film being disposed to partially define the primary fluid chamber disposed on one side thereof; and a pressure operating chamber having an attraction face being disposed on an opposite side from the primary fluid chamber with the elastic rubber film interposed therebetween, the pressure operating chamber being arranged to be applied with a negative pressure in order to deform and attract the elastic rubber film onto the attraction face of the pressure operating chamber, wherein: