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    • 2. 发明授权
    • Oil pump for a vehicle
    • 车用油泵
    • US08684712B2
    • 2014-04-01
    • US12776456
    • 2010-05-10
    • Hiroyasu HondaHideki MiyataNobuyuki Kato
    • Hiroyasu HondaHideki MiyataNobuyuki Kato
    • F01C1/02F03C2/00
    • F04C2/102F04C2/084F04C2240/50F05C2225/00
    • A plurality of convex portions that protrude radially outward from a plurality of positions separated in the circumferential direction are provided on the outer peripheral surface of a driven gear. Each convex portion has, in the circumferential direction of the driven gear, a rising surface that rises from a minimum diameter position to a maximum diameter position in the direction opposite the rotational direction of the driven gear, and a falling surface that falls from that maximum diameter position to a minimum diameter position that is adjacent to and in back of that maximum diameter position with respect to the rotational direction of the driven gear. The circumferential length of the falling surface is greater than the circumferential length of the rising surface.
    • 在从动齿轮的外周面设置有从圆周方向分离的多个位置向径向外侧突出的多个凸部。 每个凸部在从动齿轮的圆周方向上具有从与从动齿轮的旋转方向相反的方向从最小直径位置升高到最大直径位置的上升面,以及从该最大直径位置落下的下降面 直径位置相对于从动齿轮的旋转方向相邻于该最大直径位置的最小直径位置。 落下面的圆周长度大于上升面的圆周长度。
    • 5. 发明申请
    • OIL PUMP FOR A VEHICLE
    • 油泵油
    • US20100290941A1
    • 2010-11-18
    • US12776456
    • 2010-05-10
    • Hiroyasu HONDAHideki MiyataNobuyuki Kato
    • Hiroyasu HONDAHideki MiyataNobuyuki Kato
    • F01C1/18
    • F04C2/102F04C2/084F04C2240/50F05C2225/00
    • A plurality of convex portions that protrude radially outward from a plurality of positions separated in the circumferential direction are provided on the outer peripheral surface of a driven gear. Each convex portion has, in the circumferential direction of the driven gear, a rising surface that rises from a minimum diameter position to a maximum diameter position in the direction opposite the rotational direction of the driven gear, and a falling surface that falls from that maximum diameter position to a minimum diameter position that is adjacent to and in back of that maximum diameter position with respect to the rotational direction of the driven gear. The circumferential length of the falling surface is greater than the circumferential length of the rising surface.
    • 在从动齿轮的外周面设置有从圆周方向分离的多个位置向径向外侧突出的多个凸部。 每个凸部在从动齿轮的圆周方向上具有从与从动齿轮的旋转方向相反的方向从最小直径位置升高到最大直径位置的上升面,以及从该最大直径位置落下的下降面 直径位置相对于从动齿轮的旋转方向相邻于该最大直径位置的最小直径位置。 落下面的圆周长度大于上升面的圆周长度。