A partition member (17) of an anti-vibration device (1, 2, 3, 4) comprises a membrane (31) and an orifice passage (21). The orifice passage comprises a main-fluid-chamber-side passage (21a) and an auxiliary-fluid-chamber-side passage (21b). The main-fluid-chamber-side passage and the auxiliary-fluid-chamber-side passage extend in the circumferential direction, and are arranged in mutually differing positions in the radial direction. The circulation direction in the main-fluid-chamber-side passage and the circulation direction in the auxiliary-fluid-chamber-side passage are opposite directions when fluid flows in the orifice passage. The flow path cross-sectional shape in at least one passage from among the main-fluid-chamber-side passage and the auxiliary-fluid-chamber-side passage is short in the axial direction along a center axis line (O) of a first attachment member, and has a shape that is long in the radial direction and flat in the width direction. The ratio of the radial-direction size to the axial-direction size of the one passage is greater than the ratio of the other passage.
隔振装置(1、2、3、4)的分隔构件(17)包括隔板(31)和节流通路(21),节流通路包括主液室侧通路(21a)和副液室侧通路(21b),主液室侧通路和副液室侧通路沿着周向延伸,并且使径向的位置彼此不同地配置,当液体在节流通路中流动时,主液室侧通路中的流通方向和副液室侧通路中的流通方向成为相反方向,主液室侧通路和副液室侧通路中的至少一通路的流路截面形状设为在沿着第1安装构件的中心轴线(O)的轴向上较短、在径向上较长的横长的扁平形状,所述一通路的径向的大小相对于轴向的大小的比例大于主液室侧通路和副液室侧通路中的另一通路的所述比例。
ANTI-VIBRATION DEVICE
隔振装置
2021-11-30
Patent
Electronic Resource
Chinese