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1. 发明公开

EP3306094A1 PUMP DEVICE 审中-公开
标题翻译：泵装置
公开(公告)号：EP3306094A1
公开(公告)日：2018-04-11
申请号：EP16803367.8
申请日：2016-06-01
申请人： KYB Corporation
发明人： AKATSUKA, Koichiro , FUJITA, Tomoyuki , NAKAGAWA, Tomoyuki , KATOU, Fumiyasu , GOMI, Hiroki
IPC分类号： F04C11/00 , F04C2/344 , F04C14/26 , F04C15/06
CPC分类号： F04C2/344 , F01C21/0863 , F01C21/108 , F04C2/3446 , F04C11/00 , F04C11/001 , F04C14/02 , F04C14/26 , F04C15/0049 , F04C15/06 , F04C2270/12 , F04C2270/13
摘要： A pump device includes: a main pump (101) and a sub pump (102) that supply hydraulic oil to the hydraulic device (23); and a switching valve (40) that switches so as to supply the hydraulic oil discharged from the sub pump (102) to the hydraulic device (23), or to return the hydraulic oil discharged from the sub pump (102) to the suction side. The main pump (101) and the sub pump (102) each include: a rotor (2) connected to a common drive shaft (1), a discharge port (9) into which the hydraulic oil discharged from a pump chamber (7) is led, and a groove-shaped discharge-side notch formed from an opening edge of the discharge port (9) toward a direction opposite to a rotation direction of the rotor (2). The switching valve (40) switches according to a rotation speed of the drive shaft (1). At least one discharge-side notch (9b) of the sub pump (102) is formed so that a resistance applied to the flow of the hydraulic oil passing therethrough is greater than that of the discharge-side notch (9b) of the main pump (101).
摘要翻译：泵装置具有向液压装置（23）供给工作油的主泵（101）以及副泵（102）。和切换阀（40），其切换成将从副泵（102）排出的工作油向液压装置（23）供给，或者将从副泵（102）排出的工作油向吸入侧。主泵101和副泵102分别包括：连接到公共驱动轴（1）的转子（2）;从泵室（7）排出的液压油排出的排出口（9）以及从排出口（9）的开口边缘朝向与转子（2）的旋转方向相反的方向形成的槽状的排出侧切口。切换阀（40）根据驱动轴（1）的转速进行切换。副泵（102）的至少一个排出侧切口（9b）形成为使得通过其中的液压油的流动所施加的阻力大于主泵的排出侧切口（9b）的阻力（101）。

2. 发明公开

EP3290710A1 VARIABLE DISPLACEMENT VANE PUMP 审中-公开
标题翻译：可变排量的叶片泵
公开(公告)号：EP3290710A1
公开(公告)日：2018-03-07
申请号：EP16786367.9
申请日：2016-04-19
申请人： KYB Corporation
发明人： AKATSUKA, Koichiro , FUJITA, Tomoyuki , NAKAGAWA, Tomoyuki , KATOU, Fumiyasu , GOMI, Hiroki
IPC分类号： F04C14/24 , F04C2/344 , F04C14/22 , F04C14/26
CPC分类号： F04C14/26 , F04B2201/1213 , F04C2/344 , F04C14/22 , F04C14/223 , F04C14/24 , F04C2210/206 , F04C2270/20 , F04C2270/215 , F04C2270/585
摘要： A variable displacement vane pump includes: a control orifice 104 that imparts resistance to a flow of working oil discharged from pump chambers 6; a flow-amount control valve 102 that operates in accordance with an upstream-downstream differential pressure of the control orifice 104 and controls a flow amount of the working oil discharged from the pump chambers 6; a variable control valve 103 that is operated by the working oil that has passed through the control orifice 104 and controls an amount of eccentricity of a cam ring 4 with respect to a rotor 2 by controlling a pressure difference between a first fluid pressure chamber 15 and a second fluid pressure chamber 16; and a return passage 42 that is connected to the flow-amount control valve 102 and circulates a part of the working oil discharged from the pump chambers 6 through a suction passage 40.
摘要翻译：可变排量叶片泵包括：控制孔104，其对从泵室6排出的工作油的流动施加阻力; 流量控制阀102，其根据控制节流孔104的上游 - 下游差压进行操作并且控制从泵室6排出的工作油的流量; 可变控制阀103，其由通过控制节流孔104的工作油进行工作，并通过控制第一液压室15与第一液压室15之间的压力差来控制凸轮环4相对于转子2的偏心量; 第二流体压力室16; 以及返回通路42，其与流量控制阀102连接，使从泵室6排出的工作油的一部分通过吸入通路40而循环。

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