Invention Grant
- Patent Title: Fluid filled type cylindrical vibration damping device
- Patent Title (中): 流体填充型圆柱形减震装置
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Application No.: US12292246Application Date: 2008-11-14
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Publication No.: US08087647B2Publication Date: 2012-01-03
- Inventor: Masami Endo
- Applicant: Masami Endo
- Applicant Address: JP Aichi
- Assignee: Tokai Rubber Industries, Ltd.
- Current Assignee: Tokai Rubber Industries, Ltd.
- Current Assignee Address: JP Aichi
- Agency: Oliff & Berridge, PLC
- Priority: JP2008-017230 20080129
- Main IPC: F16F5/00
- IPC: F16F5/00 ; F16F13/00

Abstract:
A fluid filled type cylindrical vibration damping device, wherein a circumferential end of a stopper member is formed as a mating element smaller in diameter than a circumferentially center section of the stopper member, and is juxtaposed against and supported on a bottom face of a mating groove in a communication passage, to form the communication passage along an entire area between diametrically opposed faces of the mating element and an outer tubular member. A cutout portion is formed extending in a circumferential direction from a circumferential end in a widthwise medial section of the mating element, with the communication passage opening into and communicating with a first fluid chamber at a distal end section of the cutout portion, and at two widthwise side sections of the mating element, respectively, thereby defining an orifice passage connecting the first fluid chamber with a second fluid chamber.
Public/Granted literature
- US20090189323A1 Fluid filled type cylindrical vibration damping device Public/Granted day:2009-07-30
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