A placing table includes a measuring-unit that measures a vertical position of an orifice member placed on the placing table, a position-regulating-portion that engages with a part of the orifice member of a type corresponding to the table, and an orifice-member-determination-unit that determines a placed state and type of the orifice member based on a measurement result obtained by the measuring-unit. When the corresponding type of the orifice member is placed in a correct posture, the position-regulating-portion engages with the orifice member and seats the orifice member on the table over the entire circumference of the lower end portion thereof. When a different type of orifice member is placed or when the corresponding type of orifice member is placed in an incorrect posture, the position-regulating-portion does not engage with the orifice member and lifts at least a part of the orifice member from the table.

A vibration-damping device (10) of the invention includes a tubular first attachment member (11) and a second attachment member (12); an elastic body (13); a partitioning member (17) that forms a main liquid chamber (14), a first auxiliary liquid chamber (15), and a second auxiliary liquid chamber (16); a first diaphragm (18) that constitutes a portion of the wall surface of the first auxiliary liquid chamber (15); and a second diaphragm (19) that constitutes a portion of the wall surface of the second auxiliary liquid chamber (16) and that has a smaller deformation resistance than the deformation resistance of the first diaphragm (18). The partitioning member (17) is provided with an idle orifice (31) that allows the main liquid chamber (14) and the first auxiliary liquid chamber (15) to communicate with each other and that produces resonance with respect to the input of an idle vibration, and a shake orifice (32) that allows the main liquid chamber (14) and the second auxiliary liquid chamber (16) to communicate with each other and that produces resonance with respect to the input of a shake vibration. An adjustment chamber (24) having an interior capable of being decompressed or compressed with respect to standard pressure or being open so as to be capable of being blocked with respect to the outside, is provided adjacent to the second auxiliary liquid chamber (16) with the second diaphragm (19) interposed therebetween. By including the configuration as described above, damping characteristics against vibrations are exhibited over a wide range of frequencies.

A vibration-damping device (10) of the invention includes a tubular first attachment member (11) and a second attachment member (12); an elastic body (13); a partitioning member (17) that forms a main liquid chamber (14), a first auxiliary liquid chamber (15), and a second auxiliary liquid chamber (16); a first diaphragm (18) that constitutes a portion of the wall surface of the first auxiliary liquid chamber (15); and a second diaphragm (19) that constitutes a portion of the wall surface of the second auxiliary liquid chamber (16) and that has a smaller deformation resistance than the deformation resistance of the first diaphragm (18). The partitioning member (17) is provided with an idle orifice (31) that allows the main liquid chamber (14) and the first auxiliary liquid chamber (15) to communicate with each other and that produces resonance with respect to the input of an idle vibration, and a shake orifice (32) that allows the main liquid chamber (14) and the second auxiliary liquid chamber (16) to communicate with each other and that produces resonance with respect to the input of a shake vibration. An adjustment chamber (24) having an interior capable of being decompressed or compressed with respect to standard pressure or being open so as to be capable of being blocked with respect to the outside, is provided adjacent to the second auxiliary liquid chamber (16) with the second diaphragm (19) interposed therebetween. By including the configuration as described above, damping characteristics against vibrations are exhibited over a wide range of frequencies.

A liquid sealed mount is to be disposed between a vibration source and a support of the vibration source. The liquid sealed mount includes an elastic portion configured to absorb a vibration from the vibration source, a first liquid chamber and a second liquid chamber from/to which a hydraulic liquid sealed in the elastic portion is to move in response to an expansion and contraction operation of the elastic portion, and a damping passage through which the hydraulic liquid is to move. The damping passage allows the first and second liquid chambers to communicate with each other. A partition member and a valve body are provided in the damping passage. The partition member separates a first passage and a second passage adjacent to each other. The valve body is configured to block the second passage in an openable and closeable manner by using a pressure from the hydraulic liquid.

A liquid sealed mount is to be disposed between a vibration source and a support of the vibration source. The liquid sealed mount includes an elastic portion configured to absorb a vibration from the vibration source, a first liquid chamber and a second liquid chamber from/to which a hydraulic liquid sealed in the elastic portion is to move in response to an expansion and contraction operation of the elastic portion, and a damping passage through which the hydraulic liquid is to move. The damping passage allows the first and second liquid chambers to communicate with each other. A partition member and a valve body are provided in the damping passage. The partition member separates a first passage and a second passage adjacent to each other. The valve body is configured to block the second passage in an openable and closeable manner by using a pressure from the hydraulic liquid.

A separation device for separating a working chamber and a compensation chamber of a hydraulically damping mount includes a first nozzle disc and a second nozzle disc made of a first material and forming a damping channel interconnecting the working chamber and the compensation chamber. The first nozzle disc may include a sealing member made of a second material and abut the second nozzle disc to seal the damping channel. A hydraulically damping mount for mounting a motor vehicle unit may having a separating device.

A separation device for separating a working chamber and a compensation chamber of a hydraulically damping mount includes a first nozzle disc and a second nozzle disc made of a first material and forming a damping channel interconnecting the working chamber and the compensation chamber. The first nozzle disc may include a sealing member made of a second material and abut the second nozzle disc to seal the damping channel. A hydraulically damping mount for mounting a motor vehicle unit may having a separating device.

A method for sealing a liquid composite spring, includes the steps of: placing a sleeve-shaped outer wall around an upper portion of a core shaft, and forming an upper liquid chamber and a lower liquid chamber inside the outer wall; and arranging a sealing member at a bottom of the outer wall to seal the lower liquid chamber, wherein the sealing member is made of flexible material. The liquid composite spring is provided with the rigid outer wall and the flexible sealing member. The volume and shape of the lower liquid chamber can be changed through the flexible sealing member, so that the chamber is formed as a flexible chamber.

A vehicle unit fastening subassembly for vibratory fastening of a vehicle unit, in particular of a motor and/or transmission, to a vehicle structure of a motor vehicle, has at least one first carrier element on the unit side and a second carrier element on the vehicle side. The first carrier element and the second carrier element are connected to each other by a vibration damper, which is arranged at least in part in the first carrier element or in the second carrier element. The vibration damper is fluidically connected to a hydraulic unit by a flow channel, which is arranged adjacent to the vibration damper in a plan view of the vibration damper. A modular system is provided having a vibration damper and a hydraulic unit, wherein the vibration damper is usable either together with the hydraulic unit as a hydraulic vibration damper or without the hydraulic unit as a conventional bearing.

A vehicle unit fastening subassembly for vibratory fastening of a vehicle unit, in particular of a motor and/or transmission, to a vehicle structure of a motor vehicle, has at least one first carrier element on the unit side and a second carrier element on the vehicle side. The first carrier element and the second carrier element are connected to each other by a vibration damper, which is arranged at least in part in the first carrier element or in the second carrier element. The vibration damper is fluidically connected to a hydraulic unit by a flow channel, which is arranged adjacent to the vibration damper in a plan view of the vibration damper. A modular system is provided having a vibration damper and a hydraulic unit, wherein the vibration damper is usable either together with the hydraulic unit as a hydraulic vibration damper or without the hydraulic unit as a conventional bearing.