Invention Grant
- Patent Title: Fluid filled type vibration damping device
- Patent Title (中): 流体填充式减震装置
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Application No.: US11878464Application Date: 2007-07-24
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Publication No.: US08132796B2Publication Date: 2012-03-13
- Inventor: Mutsumi Muraoka
- Applicant: Mutsumi Muraoka
- Applicant Address: JP Komaki-shi
- Assignee: Tokai Rubber Industries, Ltd.
- Current Assignee: Tokai Rubber Industries, Ltd.
- Current Assignee Address: JP Komaki-shi
- Agency: Oliff & Berridge, PLC
- Priority: JP2006-203668 20060726
- Main IPC: F16F13/00
- IPC: F16F13/00

Abstract:
A fluid filled type vibration damping device wherein an elastic rubber film is disposed to partially define a primary fluid chamber disposed on one side thereof, and a pressure operating chamber is disposed on an opposite side from the primary fluid chamber with the elastic rubber film interposed therebetween. The elastic rubber film has a dome shape and an attraction face of the pressure operating chamber has an inverted dome shape, and has a negative pressure suction groove including an outer circumferential groove extending in a circumferential direction at an outer peripheral portion of the attraction face and opening to the pressure operating chamber, and a negative pressure suction bore for introducing a negative pressure to the pressure operating chamber is connected to the negative pressure suction groove.
Public/Granted literature
- US20080023897A1 Fluid filled type vibration damping device Public/Granted day:2008-01-31
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