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    • 7. 发明授权
    • Valve timing adjusting apparatus
    • 气门正时调节装置
    • US08166936B2
    • 2012-05-01
    • US12702507
    • 2010-02-09
    • Toshiki Fujiyoshi
    • Toshiki Fujiyoshi
    • F01L1/34
    • F01L1/3442F01L2001/34453F01L2001/34483
    • A valve timing adjusting apparatus includes a housing, a vane rotor, and a spiral spring. The spiral spring has a most radially inward part engaged with a rotational shaft of the vane rotor in a state, where the most radially inward part is wound around the rotational shaft. The rotational phase has an intermediate position defined between a full retard position and a full advance position of the rotational phase. The spiral spring has a radially outward segment that is located radially outward of the most radially inward part. When the rotational phase is in a range on a retard side of the intermediate position or on an advance side of the intermediate position, the radially outward segment is engaged with the stopper such that the spiral spring urges the vane rotor in the advance direction or in the retard direction relative to the housing, respectively.
    • 气门正时调节装置包括壳体,叶片转子和螺旋弹簧。 螺旋弹簧具有最大径向向内的部分,该部分在叶片转子的旋转轴处以最大径向向内的部分缠绕在旋转轴上的状态。 旋转相位具有在旋转相位的完全延迟位置和完全提前位置之间限定的中间位置。 螺旋弹簧具有径向向外的部分,其位于最径向向内部分的径向外侧。 当旋转相位在中间位置的延迟侧或中间位置的前进侧的范围内时,径向向外的部分与止动件接合,使得螺旋弹簧沿前进方向推动叶片转子或者在 相对于壳体的延迟方向。
    • 8. 发明授权
    • Variable valve timing device
    • 可变气门正时装置
    • US08646424B2
    • 2014-02-11
    • US13309897
    • 2011-12-02
    • Toshiki FujiyoshiAkihiko Takenaka
    • Toshiki FujiyoshiAkihiko Takenaka
    • F01L1/34
    • F01L1/3442F01L2001/34433F01L2001/34456F01L2001/34469
    • A variable valve timing device includes a control valve for switching fluid communication among ports. The control valve includes a sleeve, a spool, a movable member, and resilient members. A first resilient member pushes the spool in both of the regions. A second resilient member acts on the spool via the movable member engaged with the spool in an advancing region. In a lock region, the movable member rests on the sleeve to enable the spool to move freely from the second resilient member. As a result, force acting on the spool can be restricted in the lock region. The movable member is supported from a radial inside by the spool and is radially distanced from the sleeve. As a result, it is possible to reduce a sliding resistance acting on the movable member.
    • 可变气门正时装置包括用于在端口之间切换流体连通的控制阀。 控制阀包括一个套筒,一个卷轴,一个活动件和弹性件。 第一弹性构件在两个区域中推动线轴。 第二弹性构件通过在前进区域中与线轴接合的可动构件作用在线轴上。 在锁定区域中,可动构件位于套筒上,以使线轴能够从第二弹性构件自由移动。 结果,作用在线轴上的力可以限制在锁定区域中。 可动构件通过线轴由径向内侧支撑并且与套筒径向间隔开。 结果,可以减小作用在可动构件上的滑动阻力。
    • 10. 发明授权
    • Valve timing control apparatus
    • 气门正时控制装置
    • US07987827B2
    • 2011-08-02
    • US12325008
    • 2008-11-28
    • Toshiki FujiyoshiOsamu Sato
    • Toshiki FujiyoshiOsamu Sato
    • F01L1/34
    • F01L1/3442F01L1/022F01L1/34409F01L2001/34426F01L2001/3443F01L2001/34469
    • A valve timing control apparatus for controlling valve timing includes a first rotor, a second rotor, and a controller. The second rotor and the first rotor defines therebetween an advance chamber and a retard chamber. The controller includes a supply passage, at least one drain passage, a spool valve, at least one connection passage, and at least one check valve. The at least one connection passage connects the supply passage to the at least one drain passage when a spool of the spool valve is moved to one of the advance and retard positions. The at least one check valve is respectively provided in the at least one connection passage. The check valve allows working fluid to flow in a direction from the at least one drain passage toward the supply passage and limits working fluid from flowing in an opposite direction.
    • 用于控制气门正时的气门正时控制装置包括第一转子,第二转子和控制器。 第二转子和第一转子在其间限定了前进室和延迟室。 控制器包括供给通道,至少一个排放通道,滑阀,至少一个连接通道和至少一个止回阀。 当滑阀的滑阀移动到提前位置和延迟位置中的一个时,至少一个连接通道将供给通道连接到至少一个排水通道。 所述至少一个止回阀分别设置在所述至少一个连接通道中。 止回阀允许工作流体沿着从至少一个排水通道朝向供给通道的方向流动,并限制工作流体沿相反方向流动。