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    • 2. 发明申请
    • VALVE TIMING CONTROLLER
    • 阀门时序控制器
    • US20090107433A1
    • 2009-04-30
    • US12257841
    • 2008-10-24
    • Takehiro TANAKA
    • Takehiro TANAKA
    • F01L1/34
    • F01L1/3442F01L2001/34426F01L2001/3443
    • A control valve is provided with a spool and a supply port through which an operating oil is supplied. The spool is provided with an advance check valve and a retard check valve. The advance check valve restricts an operating oil flow flowing from the advance chamber to the supply port and permits an operating oil flow flowing from the supply port to the advance chamber when the advance chamber communicates with the supply port. The retard check valve restricts the operating oil flow flowing from the retard chamber to the supply port and permits the operating oil flow flowing from the supply port to the retard chamber when the retard chamber communicates with the supply port. When a rotational phase of the camshaft is held at a target phase region, the advance chamber and the retard chamber communicate with the supply port respectively.
    • 控制阀设置有阀芯和供给口,通过该供给口供给工作油。 阀芯设有预先止回阀和延迟止回阀。 提前止回阀限制从提前室流向供给口的工作油流,并且当提前室与供给口连通时,允许工作油流从供给口流入提前室。 延迟止回阀限制从延迟室流到供给口的工作油流,并且当延迟室与供给口连通时,允许工作油流从供给口流向延迟室。 当凸轮轴的旋转相位保持在目标相位区域时,推进室和延迟室分别与供给口连通。
    • 5. 发明申请
    • VALVE CHARACTERISTICS CONTROL APPARATUS
    • 阀门特性控制装置
    • US20130000576A1
    • 2013-01-03
    • US13539663
    • 2012-07-02
    • Takehiro TANAKATakashi YAMAGUCHI
    • Takehiro TANAKATakashi YAMAGUCHI
    • F01L1/34
    • F01L1/34409F01L1/3442F01L2001/3443F01L2001/34489F01L2001/34493
    • A control valve part switches a flowing direction of working fluid between a first advance chamber and a first retard chamber in a timing adjustment mode, and restricts working fluid from flowing between the first advance chamber and the first retard chamber in a working angle adjustment mode. A check valve part allows working fluid to flow from a second retard chamber through a check passage to a second advance chamber, and restricts working fluid from flowing from the second advance chamber through the check passage to the second retard chamber. A switch valve part allows a communication between the second advance chamber and the second retard chamber through a switch passage in the working angle adjustment mode, and prohibits the communication between the second advance chamber and the second retard chamber through the switch passage in the timing adjustment mode.
    • 控制阀部件以定时调整模式在第一前进室和第一延迟室之间切换工作流体的流动方向,并且以工作角度调整模式限制工作流体在第一推进室和第一延迟室之间流动。 止回阀部件允许工作流体从第二延迟室流过检查通道到第二前进室,并且限制工作流体从第二前进室通过止回通道流到第二延迟室。 开关阀部件允许通过工作角度调节模式中的开关通道在第二提前室和第二延迟室之间的连通,并且在定时调整中禁止通过开关通道进行第二提前室与第二延迟室之间的连通 模式。