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    • 3. 发明申请
    • Pressure-limiting device in a hydraulic path for clutch actuation
    • 用于离合器致动的液压路径中的限压装置
    • US20050252209A1
    • 2005-11-17
    • US11129863
    • 2005-05-16
    • Jan Grabenstaetter
    • Jan Grabenstaetter
    • F16K17/04F16D48/02F16D35/00
    • F16D48/02F16D48/04F16D2048/0212F16D2048/0224F16D2500/1026F16D2500/70406F16D2500/7041
    • A pressure-limiting device in the hydraulic path for a clutch that includes at least one restrictor member having a central restrictor bore for pressure reduction and a cup-shaped retaining ring to which pressure is applied by a spring and the bottom of which has a central bore and, radially spaced therefrom, a plurality of radially spaced openings arranged on a reference circle. At least one of the restrictor member and the central restrictor bore is activatable when a predetermined volumetric flow rate of the fluid is exceeded during clutch engagement and the plurality of radially spaced openings is closable when a predetermined pressure drop is exceeded. The central restrictor bore is capable of being activated independently of the temperature because the surface area acting on the cup-shaped retaining ring is smaller in the unshifted state than during the shifting phase, as a result of which the temperature-dependent pressure losses caused by leakage between the retaining ring and the housing are compensated for.
    • 用于离合器的液压路径中的压力限制装置,其包括具有用于减压的中心限制器孔的至少一个限制器构件和通过弹簧施加压力的杯形保持环,并且其底部具有中心 并且与其径向间隔开多个设置在参考圆上的径向隔开的开口。 当在离合器接合期间超过流体的预定体积流量时,节流器构件和中心限制器孔中的至少一个是可激活的,并且当超过预定压降时,多个径向隔开的开口可关闭。 中心节流孔能够独立于温度而被激活,因为作用在杯状保持环上的表面积在无移动状态下比在移动阶段期间更小,结果导致由温度导致的温度依赖的压力损失 保护环和外壳之间的泄漏得到补偿。
    • 4. 发明授权
    • Pressure-limiting device in a hydraulic path for clutch actuation
    • 用于离合器致动的液压路径中的限压装置
    • US07219496B2
    • 2007-05-22
    • US11129863
    • 2005-05-16
    • Jan Grabenstaetter
    • Jan Grabenstaetter
    • F15B7/00
    • F16D48/02F16D48/04F16D2048/0212F16D2048/0224F16D2500/1026F16D2500/70406F16D2500/7041
    • A pressure-limiting device in the hydraulic path for a clutch including at least one restrictor member having a central restrictor bore for pressure reduction and a cup-shaped retaining ring to which pressure is applied by a spring and the bottom of which has a central bore and, radially spaced therefrom, a plurality of radially spaced openings arranged on a reference circle. At least one of the restrictor member and the central restrictor bore is activatable when a predetermined volumetric flow rate of the fluid is exceeded during clutch engagement and the plurality of radially spaced openings is closable when a predetermined pressure drop is exceeded. The central restrictor bore can be activated independently of temperature because the surface area acting on the retaining ring is smaller in the unshifted state than during shifting, resulting with the temperature-dependent pressure losses caused by leakage between the retaining ring and housing being compensated for.
    • 用于离合器的液压路径中的压力限制装置,包括至少一个具有用于减压的中心限制器孔的限流器构件和一个杯形保持环,其中压力通过弹簧施加在其上,并且其底部具有中心孔 并且与其径向间隔开多个设置在参考圆上的径向隔开的开口。 当在离合器接合期间超过流体的预定体积流量时,节流器构件和中心限制器孔中的至少一个是可激活的,并且当超过预定压降时,多个径向隔开的开口可关闭。 中心限流孔可以独立于温度启动,因为作用在保持环上的表面积在无移位状态下比在移位期间更小,导致由保持环和外壳之间的泄漏引起的由温度导致的压力损失被补偿。