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    • 26. 发明授权
    • Cylinder head structure of engine
    • 发动机气缸盖结构
    • US07044089B2
    • 2006-05-16
    • US11054947
    • 2005-02-11
    • Takayuki Yamada
    • Takayuki Yamada
    • F02F1/36
    • F02F1/40F02F1/38F02F2001/245
    • In a cylinder head structure of a multi-cylinder engine, a head-side water jacket is provided in the cylinder head, a lateral rib extending in the engine width direction is provided at an upper face of the portion located between cylinders of bottom deck, the lateral rib bifurcates, getting around intake-side and exhaust-side connecting holes connecting the head-side water jacket with a water jacket in cylinder block, its both ends are connected with intake-port and exhaust-port walls, and its top portion is configured so as to become taller gradually from its central portion toward its outside portions.Accordingly, rigidity of the portion located between cylinders of the cylinder head can be increased in the cylinder-line direction as well as in the vertical direction, which can improve the sealing between the cylinder block and the cylinder head.
    • 在多缸发动机的气缸盖结构中,在气缸盖中设置有头侧水套,在位于底板的气缸之间的部分的上表面设置有沿发动机宽度方向延伸的横向肋, 侧肋分叉,在缸体中连接头侧水套与水套的进气侧和排气侧连接孔,其两端与进气口和排气口壁连接,其顶部 被构造成从其中心部朝向其外侧逐渐变高。 因此,可以在气缸线方向以及垂直方向上增加位于气缸盖的气缸之间的部分的刚性,这可以改善气缸体和气缸盖之间的密封。
    • 30. 发明授权
    • Bending device
    • 弯曲装置
    • US06820450B2
    • 2004-11-23
    • US10153194
    • 2002-05-21
    • Takayuki YamadaTeruaki Yogo
    • Takayuki YamadaTeruaki Yogo
    • B21D704
    • B21D7/12B21D7/025
    • The bending device comprises a hydraulic motor for moving a feeding table, and a hydraulic circuit including first and second switching valves which can be selectively switched between a speed control channel for supplying operating oil from a discharge-rate variable hydraulic pump to the hydraulic motor by way of a servo valve and a pressure control channel for supplying high pressure operating oil from the hydraulic pump to the hydraulic motor. When the feeding table provided with a chuck mechanism gripping a longitudinal material is moved to a bending mechanism to bend the material, control of the speed and application of axial compressive force can be conducted by switching of the first and second switching valves.
    • 弯曲装置包括用于移动供给台的液压马达和包括第一和第二切换阀的液压回路,该液压回路可以在用于从排出速率可变液压泵向液压马达供给工作油的速度控制通道之间选择性地切换, 伺服阀的方式和用于从液压泵向液压马达提供高压工作油的压力控制通道。 当设置有夹持纵向材料的卡盘机构的进给台移动到弯曲机构以弯曲材料时,可以通过切换第一和第二切换阀来控制速度和施加轴向压缩力。