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    • 141. 发明申请
    • Pneumatic tire
    • 气动轮胎
    • US20060207709A1
    • 2006-09-21
    • US10556791
    • 2004-06-16
    • Katsunori TanakaNaoya AminoAtsushi Tanno
    • Katsunori TanakaNaoya AminoAtsushi Tanno
    • B60C15/06
    • B60C15/0036B60C9/14B60C13/04B60C15/0607Y02T10/862Y10T152/10846Y10T152/10864
    • A pneumatic tire reducing road noise without deteriorating durability and rolling resistance. In this pneumatic tire, the bead filler includes a triangle portion abutting a bead core and having a substantially triangular cross-sectional shape, and a uniform-thickness portion extending from a top of the triangle portion in a radially outward direction of the tire and having a substantially uniform thickness. An upper-end position of the uniform-thickness portion is outward, in a radial direction of the tire, from a position 1.6 times as high as the height of the triangle portion, and is at least 5 mm apart from the belt layers. A thickness of the uniform-thickness portion is thicker than 0.1 mm and thinner than 0.5 times a lower-end width of the triangle portion. The bead filler includes a plurality of rubber layers formed of mutually different rubber compositions. The rubber compositions forming these rubber layers have loss tangents (tan δ) gradually decreasing from the outermost-periphery rubber layer toward the innermost-periphery rubber layer, are harder than other rubber compositions neighboring the bead filler, and have breaking elongations whose mutual differences are 50% points or less.
    • 一种充气轮胎降低道路噪音,不会劣化耐久性和滚动阻力。 在该充气轮胎中,胎圈填料包括邻接胎圈芯并且具有大致三角形横截面形状的三角形部分和从三角形部分的顶部沿轮胎的径向向外延伸的均匀厚度部分,并且具有 基本均匀的厚度。 均匀厚度部分的上端位置在轮胎的径向方向上从三角形部分的高度的1.6倍的位置向外,并且距离带束层至少5mm。 均匀厚度部分的厚度比0.1mm厚,比三角形部分的下端宽度的0.5倍薄。 珠填料包括由相互不同的橡胶组合物形成的多个橡胶层。 形成这些橡胶层的橡胶组合物从最外周橡胶层朝向最内周橡胶层逐渐减少的损耗正切(tanδ)比与珠填料相邻的其它橡胶组合物更硬,并且具有相互不同的断裂伸长率 50%以下。
    • 148. 发明授权
    • AC generator
    • 交流发电机
    • US06815864B2
    • 2004-11-09
    • US09839209
    • 2001-04-23
    • Katsunori TanakaYoshihito Asao
    • Katsunori TanakaYoshihito Asao
    • H02K1922
    • H02K21/044
    • An ac generator comprising a rotor coil for generating a magnetic flux, a pole core disposed to cover the rotor coil and having pawl-shaped magnetic poles projecting in staggered and alternating relationship, permanent magnets disposed on both side surfaces of the pawl-shaped magnetic poles for reducing the leakage of the magnetic flux, and a fan for cooling. The permanent magnets are samarium-iron alloy magnets containing Ti and B, or plastic magnets made of magnet powder bonded together by a resin, bonded magnets of Sm8.2—Fe75.6—Ti2.3—B0.9—N13. One portion of the side opposing to the pawl-shaped magnetic pole side surfaces of the permanent magnet may be resin-coated. A restricting means for restricting the displacement of the magnetic pole in the radial direction may be disposed in the vicinity of the tips of the magnetic poles.
    • 一种交流发电机,包括用于产生磁通量的转子线圈,设置成覆盖转子线圈并具有以交错和交替关系突出的棘爪状磁极的磁极铁芯,设置在棘爪状磁极的两侧表面上的永磁体 用于减少磁通量的泄漏和用于冷却的风扇。 永久磁铁是含有Ti和B的钐 - 铁合金磁体,或由用树脂粘合在一起的磁粉制成的塑料磁体,Sm8.2-Fe75.6-Ti2.3-B0.9-N13的粘结磁体。 与永磁体的棘爪状磁极侧面相对的一侧的一部分可以被树脂涂覆。 用于限制磁极在径向上的位移的限制装置可以设置在磁极的尖端附近。