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公开(公告)号:EP2735737A1
公开(公告)日:2014-05-28
申请号:EP13193587.6
申请日:2013-11-20
发明人: Yasuda, Toshifumi , Mochizuki, Yasuhisa , Syokita, Hideaki , Harada, Hidemi , Watanabe, Masaki , Sakata, Koji
IPC分类号: F04B1/20
CPC分类号: F04B1/2085 , F01B3/0073 , F04B1/322 , F04B1/324 , F04B27/0865 , F16C2360/00
摘要: Variable displacement axial piston device having a rotating cylinder block (120)comprises a trunnion type movable swash plate (150) supported in a rotatably sliding manner by a bearing portion (205). With the aim of reducing the rotating frictional resistance in said bearing portion (205) two embodiments of swash plate (150) are presented. In a first embodiment an outer circumferential surface of a trunnion shaft (160) includes at least one suction groove (162) that forms a pocket portion (162a) between the suction groove (162) and the inner surface of the bearing portion (205). The pocket portion (162a) is opened to an inner space of housing on at least one side in an axis line direction of the trunnion shaft (160). In a second embodiment an outer circumferential surface of the trunnion shaft (160) includes a large diameter portion (165) at a middle part, an outer side small diameter portion (166a) and an inner side small diameter portion (166b).
摘要翻译: 具有旋转缸体(120)的可变排量轴向活塞装置包括由轴承部分(205)以可旋转滑动的方式支撑的耳轴型可移动斜盘(150)。 为了减小所述轴承部分(205)中的旋转摩擦阻力,提供了旋转斜盘(150)的两个实施例。 在第一实施例中,耳轴160的外周表面包括在吸入槽162与轴承部分205的内表面之间形成袋部162a的至少一个吸入槽162, 。 袋部(162a)在耳轴(160)的轴线方向的至少一侧向壳体的内部空间开口。 在第二实施例中,耳轴的外圆周表面包括在中部的大直径部分,外侧小直径部分和内侧小直径部分。
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公开(公告)号:EP2735737B1
公开(公告)日:2015-01-14
申请号:EP13193587.6
申请日:2013-11-20
发明人: Yasuda, Toshifumi , Mochizuki, Yasuhisa , Syokita, Hideaki , Harada, Hidemi , Watanabe, Masaki , Sakata, Koji
CPC分类号: F04B1/2085 , F01B3/0073 , F04B1/322 , F04B1/324 , F04B27/0865 , F16C2360/00
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公开(公告)号:EP2567850B1
公开(公告)日:2015-03-04
申请号:EP11180224.5
申请日:2011-09-06
IPC分类号: B60K17/10 , B60K17/356 , F16H61/44 , F16H61/4043 , F16H61/444
CPC分类号: B60K17/356 , B60Y2200/223 , F16H61/4043 , F16H61/44 , F16H61/444
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4.
公开(公告)号:EP2567850A1
公开(公告)日:2013-03-13
申请号:EP11180224.5
申请日:2011-09-06
IPC分类号: B60K17/10 , B60K17/356 , F16H61/44
CPC分类号: B60K17/356 , B60Y2200/223 , F16H61/4043 , F16H61/44 , F16H61/444
摘要: A hydraulic four-wheel-drive working vehicle 1 includes a hydraulic pump 420, a first hydraulic motor unit 50 having a first hydraulic motor main body 120 and a second hydraulic motor unit 100E having a second hydraulic motor main body 620. A closed circuit a first hydraulic line for sending pressurized fluid discharged from the hydraulic pump 420 to the first hydraulic motor main body 120 at a forward movement of the vehicle, a second hydraulic line for sending pressurized fluid discharged from the first hydraulic motor main body to the second hydraulic motor main body at the forward movement of the vehicle, and a third hydraulic line for sending pressurized fluid discharged from the second hydraulic motor main body 620 to the hydraulic pump 420 at the forward movement of the vehicle. The closed circuit includes a first bypass line 810 that causes at least a part of pressurized fluid in the first hydraulic line to bypass the first hydraulic motor main body to be supplied to the second hydraulic line. The first bypass line 810 has an orifice 820 inserted therein, and preferably has also a check valve 830 inserted therein, the check valve preventing pressurized fluid from being flown from the second hydraulic line to the first hydraulic line.
摘要翻译: 液压四轮驱动作业车1包括液压泵420,具有第一液压马达主体120的第一液压马达单元50和具有第二液压马达主体620的第二液压马达单元100E。闭合回路 用于在车辆向前移动时将从液压泵420排出的加压流体送到第一液压马达主体120的第一液压管路,用于将从第一液压马达主体排出的加压流体送到第二液压马达的第二液压管路 主体在车辆向前移动时,第三液压线路用于在车辆向前运动时将从第二液压马达主体620排出的加压流体送到液压泵420。 封闭回路包括使第一液压管路中的加压流体的至少一部分绕过第一液压马达主体以供给到第二液压管路的第一旁通管线810。 第一旁通管810具有插入其中的孔820,并且优选还具有插入其中的止回阀830,止回阀防止加压流体从第二液压管线流向第一液压管线。
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