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    • 4. 发明授权
    • SBR composition for torsional damper, and torsional damper
    • US10309476B2
    • 2019-06-04
    • US15523772
    • 2015-10-27
    • NOK Corporation
    • Tetsuro Negami
    • F16F15/36F16F1/36C08K3/04C08K3/06C08K5/14C08K5/36C08L9/06F16F15/136C08K13/02F16F15/124
    • An object of the present invention is to provide an SBR composition for a torsional damper in which the SBR composition has a good physical property balance of high load-bearing properties, low CS properties, and the kneadability and roll processability of a rubber material, and to provide a torsional damper. The object is achieved in such a manner that the SBR composition for the torsional damper comprises at least: (a) an SBR polymer having a combined styrene content of 10 wt % to 50 wt %; (b) carbon black comprising FEF grade carbon black and HAF grade carbon black blended at a ratio of FEF:HAF=1:3 to 3:1; (c) a crosslinking system including sulfur, a sulfur-donating compound, and an organic peroxide compound; and (d) a co-crosslinking agent, wherein 60 parts by weight to 100 parts by weight of the carbon black as total parts by weight of the FEF grade carbon black and the HAF grade carbon black is blended based on 100 parts by weight of the SBR polymer, 0.4 part by weight to 2.5 parts by weight of the sulfur is blended based on 100 parts by weight of the SBR polymer, the sulfur-donating compound is blended at 0.625 time to 12.5 times the blending amount of the sulfur, the organic peroxide compound is blended at 1.25 times to 12.5 times the blending amount of the sulfur, and 4 parts by weight to 16 parts by weight of the co-crosslinking agent is blended based on 100 parts by weight of the SBR polymer.
    • 5. 发明授权
    • Balancer
    • US09989120B2
    • 2018-06-05
    • US14928616
    • 2015-10-30
    • Hiroaki Yamamoto
    • Hiroaki Yamamoto
    • F16F15/36
    • F16F15/36Y10T74/2128
    • A balancer, attachable via its attaching portion to a rotatable body, and rotatable together therewith about its rotation axis, includes: weights of same mass and shape; and a weight holder with storage chambers for housing the weights, respectively, such that the weights can oscillate in arbitrary directions. The weight is shaped similar to and smaller than the chamber. The chamber is a cylindrical space extending alongside its central axis; and has concave curved ends perpendicular to the central axis. Midpoints of the central axes of the chambers are contact points on a circumference of a circle having the rotation axis as its center and being on an arbitrary plane perpendicular to the rotation axis; and are positioned so that they create a rotational symmetry around the rotation axis. The balancer can correct dynamic imbalance in rotatable bodies, such as machine tools, at both low-speeds and high-speeds of rotation.
    • 10. 发明授权
    • Vibration damper for rotating parts
    • 旋转零件用振动阻尼器
    • US09334740B2
    • 2016-05-10
    • US13598954
    • 2012-08-30
    • Rudolf KellererHerbert Brandl
    • Rudolf KellererHerbert Brandl
    • F01D5/16F01D5/18F16F15/36
    • F01D5/16F01D5/181F16F15/363
    • A rotating element for a rotating machine, in particular for a turbine machine, is provided with a vibration damper for vibrations of the rotating element during operation of the machine. The vibration damper includes a closed cavity in the body of the rotating element. In the closed cavity there is located a movable solid damping body as well as a damping medium. The damping medium is based on a metal which is in liquid state at the operation temperature where damping is desired. It furthermore relates to turbo machines equipped with such rotating elements as well as to uses of liquid metal for such vibration dampers.
    • 用于旋转机器的旋转元件,特别是用于涡轮机器的旋转元件设置有用于机器操作期间旋转元件的振动的减振器。 振动阻尼器包括在旋转元件的主体中的闭合腔。 在闭合的腔体中,设置有可移动的固体阻尼体以及阻尼介质。 阻尼介质基于在需要阻尼的操作温度下处于液态的金属。 此外,还涉及配备有这种旋转元件的涡轮机以及用于这种振动阻尼器的液体金属的使用。