Invention Grant
- Patent Title: Fluid-filled cylindrical vibration-damping device
- Patent Title (中): 流体填充圆柱形减振装置
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Application No.: US13609814Application Date: 2012-09-11
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Publication No.: US09279473B2Publication Date: 2016-03-08
- Inventor: Toru Matsushita
- Applicant: Toru Matsushita
- Applicant Address: JP Aichi
- Assignee: SUMITOMO RIKO COMPANY LIMITED
- Current Assignee: SUMITOMO RIKO COMPANY LIMITED
- Current Assignee Address: JP Aichi
- Agency: Greenblum & Bernstein, PLLC
- Priority: JP2011-200539 20110914
- Main IPC: F16F7/00
- IPC: F16F7/00 ; F16F13/14 ; F16M1/00 ; F16F15/16 ; F16F9/32 ; F16F9/58 ; F16F9/49

Abstract:
A fluid-filled cylindrical vibration-damping device including at least one orifice member attached to an inside of an outer cylindrical member so as to straddle openings of pocket portions and extend in a circumferential direction. An orifice passage is defined by covering an orifice forming groove of the orifice member with the outer cylindrical member. A stopper mechanism is constituted by contact between an inner shaft member and the outer cylindrical member via the orifice member. A reinforcing rib is formed in the orifice member so as to project from a bottom face of the orifice forming groove and extend in the circumferential direction while a projecting distal end face thereof is in contact with the outer cylindrical member. The reinforcing rib partitions at least a portion of a circumference of the orifice passage into a plurality of passages that have same fluid flow characteristics.
Public/Granted literature
- US20130062822A1 FLUID-FILLED CYLINDRICAL VIBRATION-DAMPING DEVICE Public/Granted day:2013-03-14
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