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    • 66. 发明公开
    • Starter having two planetary speed reducers with different speed reduction ratios
    • An en wei wei wei en en en en en en en en en en en en en en en en en en en en en en en en en en en en en en
    • EP2067984A2
    • 2009-06-10
    • EP08020899.4
    • 2008-12-02
    • DENSO CORPORATION
    • Nimi, Masami
    • F02N15/06F02N11/00
    • F02N15/046F02N11/00F02N15/063
    • A starter (1) is disclosed which includes a speed reducer assembly and a speed reduction ratio shifter (34, 36, 37). The speed reducer assembly includes first and second planetary speed reducers respectively having first and second speed reduction ratios. The speed reduction ratio shifter shifts the speed reduction ratio of the speed reducer assembly between the first and second speed reduction ratios. The speed reduction ratio shifter includes a gear engaging member (34) and a driver. The driver includes a first spring (36) made of a shape memory alloy and a second spring (37) made of an ordinary spring material, which are respectively disposed on opposite sides of the gear engaging member in the axial direction of an armature shaft (2b). The driver drives the gear engaging member to move in the axial direction by using the difference between restoring forces of the first and second springs.
    • 公开了一种起动器(1),其包括减速器组件和减速比移位器(34,36,37)。 减速器组件包括分别具有第一和第二减速比的第一和第二行星减速器。 减速比变速器使减速器组件的减速比在第一和第二减速比之间移动。 减速比变速器包括齿轮接合构件(34)和驾驶员。 驱动器包括由形状记忆合金制成的第一弹簧(36)和由普通弹簧材料制成的第二弹簧(37),它们分别设置在电枢轴的轴向方向上在齿轮接合构件的相对侧上 图2b)。 驾驶员通过使用第一和第二弹簧的恢复力之间的差异来驱动齿轮接合构件沿轴向移动。