Vibration dampening device
AssigneeBridgestone Corporation
InventorsAkira UEKI, Yasuyuki NAGASHIMA, Yuki SATAKE
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AssigneeBridgestone Corporation
InventorsAkira UEKI, Yasuyuki NAGASHIMA, Yuki SATAKE
Estimating the term…
In a vibration dampening device (10, 110) in an embodiment, a restriction passage (24) includes a first communication portion (26) that is open to a main liquid chamber (14), a second communication portion (27) that is open to an auxiliary liquid chamber (15), and a main body flow path (25) that causes the communication portions to communicate with each other, the first communication portion (26) includes a plurality of pores (31) penetrating a first barrier (28) having a surface (28a) facing the main liquid chamber (14), and a protrusion (40, 140) which protrudes toward the main liquid chamber (14) or the auxiliary liquid chamber (15) is formed over an entire circumference of an opening circumferential edge portion of the pore (31) in the surface (28a).
A liquid-sealed type vibration dampening device comprising:
Dependencies are inferred from the claim text.