A brake disc rotor comprising: sliding plates on the inside and outside in parallel with and separated from each other in the axial direction of an axle; fins composed of a plurality of curved long partition walls provided between the sliding plates, radially extending from the internal portion to the external portion, and inclined with respect to the radial direction, and a plurality of curved short partition walls provided in parallel between the mutually adjacent long partition walls and extending from a large-diameter internal portion to the external portion; a plurality of ventilation holes radially divided by the fins and composed of the upper and lower ventilation holes with the short partition walls; and inlet and outlet openings opened inward and outward in the radial direction thereof.
申请公布号
US5427212(A)
申请公布日期
1995.06.27
申请号
US19940312077
申请日期
1994.09.26
申请人
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO;TOYOTA JIDOSHA KABUSHIKI KAISHA;AISIN TAKAOKA CO., LTD.