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    • 1. 发明授权
    • Oil pump
    • 油泵
    • US08920148B2
    • 2014-12-30
    • US13014034
    • 2011-01-26
    • Masateru NakagawaNobukazu IkeTakuro IwaseTomohiro UmemuraNoriyasu ArigaKatsunori IshikawaMasashi Narita
    • Masateru NakagawaNobukazu IkeTakuro IwaseTomohiro UmemuraNoriyasu ArigaKatsunori IshikawaMasashi Narita
    • F01C1/00F01C1/08F04C15/00F04C2/08F04C2/10
    • F04C15/0042F04C2/088F04C2/102F04C2210/14F04C2250/10
    • An oil pump having an inner rotor with of external teeth; an outer rotor that is eccentrically provided and has internal teeth that mesh with the inner rotor external teeth, and an oil pump body that accommodates the outer and inner rotors. By rotationally driving the inner rotor to increase and decrease a space between the internal and the external teeth, an intake stroke suctions hydraulic oil from the oil pump body and a discharge stroke discharges the suctioned hydraulic oil to a discharge port formed in the oil pump body. Between the intake and discharge strokes, a confinement stroke cuts off the suctioned hydraulic oil and confines the suctioned hydraulic oil in the space, and a compression stroke reduces the space and compresses the confined hydraulic oil. Further, an interval is set between a finish end portion of the intake port of the oil pump body and a start end portion of the discharge port such that a rotation angle of the inner rotor during the compression stroke is 21 to 27 degrees.
    • 一种具有外齿的内转子的油泵; 外转子,其偏心地设置并具有与内转子外齿啮合的内齿,以及容纳外转子和内转子的油泵体。 通过旋转地驱动内转子来增加和减少内齿与外齿之间的空间,进气冲程吸入来自油泵体的液压油,排出冲程将抽吸的液压油排出到形成在油泵体内的排出口 。 在进气和排气冲程之间,限制冲程切断吸入的液压油并将吸入的液压油限制在空间中,并且压缩冲程减小了空间并压缩了限制的液压油。 此外,在油泵主体的进气口的最终端部与排出口的起始端部之间设定间隔,使得内侧转子在压缩冲程中的旋转角度为21〜27度。
    • 4. 发明申请
    • OIL PUMP
    • 油泵
    • US20110194968A1
    • 2011-08-11
    • US13014034
    • 2011-01-26
    • Masateru NAKAGAWANobukazu IKETakuro IWASETomohiro UMEMURANoriyasu ARIGAKatsunori ISHIKAWAMasashi NARITA
    • Masateru NAKAGAWANobukazu IKETakuro IWASETomohiro UMEMURANoriyasu ARIGAKatsunori ISHIKAWAMasashi NARITA
    • F01C1/10
    • F04C15/0042F04C2/088F04C2/102F04C2210/14F04C2250/10
    • An oil pump having an inner rotor with of external teeth; an outer rotor that is eccentrically provided and has internal teeth that mesh with the inner rotor external teeth, and an oil pump body that accommodates the outer and inner rotors. By rotationally driving the inner rotor to increase and decrease a space between the internal and the external teeth, an intake stroke suctions hydraulic oil from the oil pump body and a discharge stroke discharges the suctioned hydraulic oil to a discharge port formed in the oil pump body. Between the intake and discharge strokes, a confinement stroke cuts off the suctioned hydraulic oil and confines the suctioned hydraulic oil in the space, and a compression stroke reduces the space and compresses the confined hydraulic oil. Further, an interval is set between a finish end portion of the intake port of the oil pump body and a start end portion of the discharge port such that a rotation angle of the inner rotor during the compression stroke is 21 to 27 degrees.
    • 一种具有外齿的内转子的油泵; 外转子,其偏心地设置并具有与内转子外齿啮合的内齿,以及容纳外转子和内转子的油泵体。 通过旋转地驱动内转子来增加和减少内齿与外齿之间的空间,进气冲程吸入来自油泵体的液压油,排出冲程将抽吸的液压油排出到形成在油泵体内的排出口 。 在进气和排气冲程之间,限制冲程切断吸入的液压油并将吸入的液压油限制在空间中,并且压缩冲程减小了空间并压缩了限制的液压油。 此外,在油泵主体的进气口的最终端部与排出口的起始端部之间设定间隔,使得内侧转子在压缩冲程中的旋转角度为21〜27度。