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    • 31. 再颁专利
    • Shock absorbing arrangement for marine outboard drive
    • 海上舷外驱动器的减震装置
    • USRE38851E1
    • 2005-10-25
    • US10227439
    • 2002-08-22
    • Daisuke Nakamura
    • Daisuke Nakamura
    • B63H20/10F02B61/04F15B15/14F16J1/00
    • B63H20/10F05C2251/042F15B15/1447F15B15/149
    • A shock absorbing arrangement integrates in a compact manner into a fluid motor of a tilt cylinder, and consequently is particularly well suited for a small outboard drive that may only have a slimed tilt cylinder. The shock absorbing arrangement is provided in a piston for permitting flow from the first chamber to the second chamber upon the application of a predetermined force tending to cause the outboard drive to tilt-up. The shock-absorbing mechanism comprises a check valve assembly accommodated in a hollow space that is formed in the piston and is closed by a plug attached to the piston. A piston rod extends through the first chamber from the piston and is separately formed with the piston. The piston rod includes a passage that communicates with the hollow formed in the piston. A diameter of the passage provided in the piston rod is larger than the diameter of a valve seat for the check valve assembly in order to reduce fluid friction loss across the shock-absorbing valve assembly.
    • 减震装置以紧凑的方式集成到倾斜缸的流体马达中,因此特别适用于只能具有倾斜倾斜缸的小型外侧驱动器。 冲击吸收装置设置在活塞中,用于允许在施加预定的力以使外侧驱动器向上倾斜时从第一腔室流到第二腔室。 减震机构包括容纳在中空空间中的止回阀组件,其形成在活塞中并且由附接到活塞的塞子封闭。 活塞杆从活塞延伸穿过第一室,并与活塞分开形成。 活塞杆包括与形成在活塞中的中空连通的通道。 设置在活塞杆中的通道的直径大于用于止回阀组件的阀座的直径,以便减少穿过减震阀组件的流体摩擦损失。
    • 37. 发明授权
    • Method for catalytic gas phase oxidation
    • 催化气相氧化方法
    • US06613940B1
    • 2003-09-02
    • US09648950
    • 2000-08-25
    • Takeshi NishimuraMasakatsu MoriMasatsugu KitauraOsamu DodoDaisuke Nakamura
    • Takeshi NishimuraMasakatsu MoriMasatsugu KitauraOsamu DodoDaisuke Nakamura
    • C07C5116
    • B01J8/008B01J8/067B01J2208/00212B01J2208/00221B01J2208/00256C07C45/35C07C51/215C07C51/252C07C51/255C07C51/265C07C47/22C07C57/145C07C63/16C07C57/02
    • In the reaction of catalytic gas phase oxidation by means of a shell-and-tube type reactor adapted to circulate a heating medium to the shell of the reactor through the medium of a circulation device connecting an annular conduit connected thereto, a method for the catalytic gas phase oxidation characterized by subjecting a part of the heating medium extracted from the shell of the reactor to heat exchange, introducing the heating medium resulting from the heat exchange into the proximity of a heating medium circulation inlet on the inlet side of the circulation device or the annular conduit on the outlet side of the reactor. The flow rate of the heating medium after the heat exchange is preferred to be in the range of 2-40 vol. % based on the flow rate of the heating medium within the shell of the reactor and the temperature difference of the heating medium at the inlet and the outlet to be in the range of 15-150° C. According to this invention, it is made possible to reduce evenly the hot spots in the reaction tubes, improve the yield of the product aimed at, and implement a reaction of catalytic gas phase oxidation of propylene or isobutylene.
    • 在通过壳管式反应器进行催化气相氧化的反应中,该反应器适于通过连接连接其的环形导管的循环装置的介质将加热介质循环到反应器的壳体,催化剂的方法 气相氧化特征在于使从反应器壳体中提取的一部分加热介质进行热交换,将由热交换产生的加热介质引入循环装置入口侧的加热介质循环入口附近,或 反应器出口侧的环形导管。 热交换后的加热介质的流量优选为2-40体积%。 基于反应器壳体内的加热介质的流量,入口和出口处的加热介质的温度差在15-150℃的范围内。根据本发明,制成 可能均匀地减少反应管中的热点,提高目标产品的产率,并实现丙烯或异丁烯的催化气相氧化反应。
    • 39. 发明授权
    • Tiller lock for outboard motor
    • 舷外电机的舵锁
    • US06174211B1
    • 2001-01-16
    • US09368974
    • 1999-08-05
    • Daisuke Nakamura
    • Daisuke Nakamura
    • B63H2008
    • B63H21/265B63H25/34F02B61/045
    • An outboard motor has a tiller lock which retains the rotational orientation of the outboard motor relative to a watercraft. The tiller lock allows the motor to be pivoted about a substantially horizontal tilt and trim axis while the tiller lock is engaged. The tiller lock includes a friction track advantageously arranged rearward of the tilt and trim axis. The positioning of the friction track protects the it from damage due to inadvertent contact with other components of the outboard motor mounting assembly. In particular, the friction track is protected throughout a full range of motion of the outboard motor. In addition, a pair of opposing brake members are alternately engageable with the friction track to secure the motor in a desired orientation. A bi-directional actuator handle urges either of the brake members into the friction plate independent of the other brake member to create a locking drag force which accompanies a substantially normal compressive force.
    • 舷外马达具有舵锁,其保持舷外马达相对于船只的旋转定向。 耕耘机锁定允许电动机围绕大致水平的倾斜和调整轴线枢转,同时耕耘机锁定接合。 耕耘机锁包括有利地布置在倾斜和调整轴线后面的摩擦轨迹。 摩擦履带的定位可以防止由于与舷外马达安装组件的其他部件的意外接触而造成的损坏。 特别地,摩擦轨道在舷外马达的整个运动范围内被保护。 此外,一对相对的制动构件可以与摩擦轨迹交替地接合,以将电动机固定在期望的方位。 双向致动器手柄将任一个制动构件推到摩擦片中,与另一个制动构件无关,以产生伴随基本正常的压缩力的锁定牵引力。
    • 40. 发明授权
    • Hydraulic tilt and trim unit for marine drive
    • 用于船用驱动的液压倾斜和装饰单元
    • US6042434A
    • 2000-03-28
    • US999210
    • 1997-12-29
    • Daisuke Nakamura
    • Daisuke Nakamura
    • B63H20/08B63H20/10F02B61/04B63H5/125
    • B63H20/10
    • An improved hydraulic circuit for a tilt and trim adjustment system allows an associated marine drive to be trimmed up into a tilt range for running in shallow water. The circuit includes a tilt relief valve. The valve differentiates between the hydraulic pressures within the system caused by various running conditions, and opens the valve only when two conditions are met: (i) the associated pump is activated and (ii) high pressure exists at the valve's inlet side, which usually occurs when running at high speeds. The valve, however, remains closed at slower speeds. The marine drive thus can be raised up and operated within the tilt range, provided that the speed is slow enough.
    • 用于倾斜和调整调整系统的改进的液压回路允许将相关联的船用驱动器修剪成倾斜范围,以在浅水中运行。 电路包括倾斜安全阀。 阀门可以区分不同运行条件下系统内的液压压力,只有满足两个条件才打开阀门:(i)相关的泵被激活,(ii)阀门入口侧存在高压,通常 发生在高速运行时。 然而,阀门以较慢的速度保持关闭。 因此,只要速度足够慢,船舶驱动器可以在倾斜范围内升高和操作。