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1. 发明授权

US08038420B2 Variable displacement vane pump 有权
标题翻译：可变排量叶片泵
公开(公告)号：US08038420B2
公开(公告)日：2011-10-18
申请号：US12373138
申请日：2007-09-25
申请人： Yukio Uchida , Norikatsu Hoshina , Michiya Hiramoto , Jun Soeda
发明人： Yukio Uchida , Norikatsu Hoshina , Michiya Hiramoto , Jun Soeda
IPC分类号： F04C2/00 , F04C14/18
CPC分类号： F01C21/108 , F04C2/3442 , F04C14/223 , F04C15/0088
摘要： A variable displacement vane pump that assuredly suppresses seizing of mutually contacting surfaces of a pressure plate and a rotor where the pressure plate is formed, at one side surface thereof that slidably contacts the rotor, with an annular lubricating groove. The lubricating groove is on a seal surface of the side surface at a position between arcuate back pressure grooves formed on the seal surface and a through opening which is formed in a center part of the pressure plate to receive the drive shaft. A radial width of the lubricating groove is set to a range from 10% to 25% of a radial width of the seal surface, and a distance from a center of the radial width of the lubricating groove to an inner cylindrical surface of the through opening is set to a range from 24% to 70% of the radial width of the seal surface.
摘要翻译：一种可变排量叶片泵，其可靠地抑制在形成有压板的压板和转子的相互接触的表面，在其与滑动接触转子的一个侧表面处的环形润滑槽。润滑槽位于形成在密封面上的弓形背压槽与形成在压板的中心部分以容纳驱动轴的通孔之间位于侧面的密封面上。润滑槽的径向宽度设定在密封面的径向宽度的10％〜25％的范围内，并且距离润滑槽的径向宽度的中心到通孔的内圆柱面的距离设定在密封面的径向宽度的24％〜70％的范围内。

2. 发明申请

US20090291008A1 VARIABLE DISPLACEMENT VANE PUMP 有权
标题翻译：可变位移帆泵
公开(公告)号：US20090291008A1
公开(公告)日：2009-11-26
申请号：US12373138
申请日：2007-09-25
申请人： Yukio Uchida , Norikatsu Hoshina , Michiya Hiramoto , Jun Soeda
发明人： Yukio Uchida , Norikatsu Hoshina , Michiya Hiramoto , Jun Soeda
IPC分类号： F04C14/22 , F04C2/344 , F04C15/00
CPC分类号： F01C21/108 , F04C2/3442 , F04C14/223 , F04C15/0088
摘要： [Task] To provide a variable displacement vane pump that assuredly suppresses seizing of mutually contacting surfaces of a pressure plate and a rotor.[Means for Achieving the Task] In this variable displacement vane pump, pump elements, such as a drive shaft 7, a rotor 8 and a pressure plate 11 are installed in a receiving space 2a of a front body 2, and an open side of the receiving space 2a is closed by a rear body 3. The pressure plate is formed, at one side surface thereof that slidably contacts the rotor, with an annular lubricating groove 44, the lubricating groove 44 being provided on a seal surface 43 of the side surface at a position between each of arcuate back pressure grooves 41 and 42 which are formed on the seal surface 43 and a through opening 26 which is formed in a center part of the pressure plate to receive the drive shaft. A radial width “W2” of the lubricating groove 44 is set to a range from 10% to 25% of a radial width “W1” of the seal surface, and a distance “L” from a center “P” of the radial width of the lubricating groove 44 to an inner cylindrical surface of the through opening is set to a range from 24% to 70% of the radial width of the seal surface.
摘要翻译： [任务]提供一种可靠地抑制压板和转子相互接触的表面卡住的可变排量叶片泵。 [实现任务的手段]在该可变排量叶片泵中，诸如驱动轴7，转子8和压力板11之类的泵元件安装在前主体2的容纳空间2a中，并且开口侧接收空间2a由后体3封闭。压板在其与滑动接触转子的一个侧表面处形成有环形润滑槽44，润滑槽44设置在侧面的密封表面43上在形成在密封面43上的弧形背压槽41和42之间的位置处的表面和形成在压力板的中心部分中以接收驱动轴的通孔26。润滑槽44的径向宽度“W2”设定为密封面的径向宽度“W1”的10％〜25％的范围，与径向宽度的中心“P”的距离“L” 润滑槽44相对于贯通孔的内筒面设定在密封面的径向宽度的24％〜70％的范围内。

3. 发明授权

US07993116B2 Variable displacement vane pump 有权
标题翻译：可变排量叶片泵
公开(公告)号：US07993116B2
公开(公告)日：2011-08-09
申请号：US11802127
申请日：2007-05-21
申请人： Norikatsu Hoshina , Takao Muto , Yukio Uchida , Jun Soeda
发明人： Norikatsu Hoshina , Takao Muto , Yukio Uchida , Jun Soeda
IPC分类号： F03C4/00 , F04C14/18 , F04C2/00
CPC分类号： F04C2/3442 , F04C14/226 , F04C2240/54
摘要： A variable displacement vane pump includes a rotor, a cam ring; and a pump casing including first and second side walls disposed on both sides of the cam ring, and a circumferential wall surrounding the cam ring and defining first and second pressure chambers. A pressure introduction groove is formed in a sliding contact surface between the cam ring and one of the first and second side walls, and arranged so that a pressure lower than an outlet pressure is introduced.
摘要翻译：可变排量叶片泵包括转子，凸轮环; 以及泵壳体，其包括设置在所述凸轮环的两侧的第一和第二侧壁以及围绕所述凸轮环并限定第一和第二压力室的圆周壁。压力引入槽形成在凸轮环与第一和第二侧壁中的一个之间的滑动接触表面中，并且布置成使得低于出口压力的压力被引入。

4. 发明申请

US20080118372A1 Variable displacement vane pump 有权
标题翻译：可变排量叶片泵
公开(公告)号：US20080118372A1
公开(公告)日：2008-05-22
申请号：US11802127
申请日：2007-05-21
申请人： Norikatsu Hoshina , Takao Muto , Yukio Uchida , Jun Soeda
发明人： Norikatsu Hoshina , Takao Muto , Yukio Uchida , Jun Soeda
IPC分类号： F04C2/00
CPC分类号： F04C2/3442 , F04C14/226 , F04C2240/54
摘要： A variable displacement vane pump includes a rotor, a cam ring; and a pump casing including first and second side walls disposed on both sides of the cam ring, and a circumferential wall surrounding the cam ring and defining first and second pressure chambers. A pressure introduction groove is formed in a sliding contact surface between the cam ring and one of the first and second side walls, and arranged so that a pressure lower than an outlet pressure is introduced.
摘要翻译：可变排量叶片泵包括转子，凸轮环; 以及泵壳体，其包括设置在所述凸轮环的两侧的第一和第二侧壁以及围绕所述凸轮环并限定第一和第二压力室的圆周壁。压力引入槽形成在凸轮环与第一和第二侧壁中的一个之间的滑动接触表面中，并且布置成使得低于出口压力的压力被引入。

5. 发明授权

US08267671B2 Variable displacement pump 有权
标题翻译：可变排量泵
公开(公告)号：US08267671B2
公开(公告)日：2012-09-18
申请号：US12206903
申请日：2008-09-09
申请人： Jun Soeda , Yukio Uchida
发明人： Jun Soeda , Yukio Uchida
IPC分类号： F04B49/00
CPC分类号： F04C2/3442 , F04C14/10 , F04C14/226 , F04C14/24 , F04C15/0049 , F04C2220/24 , F04C2250/10
摘要： A variable displacement pump includes: a pump body; a rotor; a cam ring; inlet and outlet ports; first and second fluid pressure chambers; a metering orifice provided in a discharge passage connected with the outlet port; a pressure regulating section arranged to regulate the pressure introduced into the first or second fluid pressure chamber, and including a high pressure chamber, a middle pressure chamber, and a low pressure chamber; a relief valve; a pilot orifice provided in a passage connecting the metering orifice and the middle pressure chamber, and having a circular section with a diameter of a mm; and a damper orifice provided in a passage connecting the outlet port and the high pressure chamber, and having a circular section with a diameter of b mm. The pilot orifice and the damper orifice satisfy the following relationships: a+2b−2.1≧0, −4a+b−16.3≦0, and a≦1.8.
摘要翻译：可变排量泵包括：泵体; 转子凸轮环入口和出口; 第一和第二流体压力室; 设置在与出口连接的排出通道中的计量孔; 压力调节部，被配置为调节引入到第一或第二流体压力室的压力，并且包括高压室，中压室和低压室; 安全阀; 一个引导孔，设置在连接该计量孔和中间压力室的通道中，并具有直径为mm的圆形截面; 以及设置在连接出口和高压室的通道中的阻尼孔，并具有直径为bmm的圆形截面。导向孔和减震孔满足以下关系：a + 2b-2.1≧0，-4a + b-16.3＆nlE; 0和a＆nlE; 1.8。

6. 发明申请

US20060070792A1 Power steering system 失效
标题翻译：动力转向系统
公开(公告)号：US20060070792A1
公开(公告)日：2006-04-06
申请号：US11220544
申请日：2005-09-08
申请人： Jun Soeda
发明人： Jun Soeda
IPC分类号： B62D5/06
CPC分类号： B62D5/065 , B62D5/062 , B62D5/30
摘要： A power steering system includes first and second communication passages for providing communication between a first oil passage and a second oil passage, a third communication passage for providing communication between the first and second communication passages, a directional control valve disposed in the third communication passage, a first check valve disposed in the first communication passage for allowing flow from the first oil passage to a first connection portion only, a second check valve disposed in the first communication passage for allowing flow from second oil passage to the first connection portion only, a third check valve disposed in the second communication passage for allowing flow from a second connection portion to the first oil passage only, and a fourth check valve disposed in the second communication passage for allowing flow from the second connection portion to the second oil passage only.
摘要翻译：动力转向系统包括用于提供第一油路和第二油路之间的连通的第一和第二连通通道，用于在第一和第二连通通道之间提供连通的第三连通通道，设置在第三连通通道中的方向控制阀，第一止回阀，设置在第一连通通道中，用于仅允许从第一油通道流到仅第一连接部分;第二止回阀，设置在第一连通通道中，用于允许仅从第二油通道流到第一连接部分; 第三止回阀设置在第二连通通道中，用于仅允许从第二连接部分流到第一油路;以及第四止回阀，设置在第二连通通道中，用于仅允许从第二连接部分流到第二油通道。

7. 发明授权

US08506270B2 Variable displacement vane pump 有权
标题翻译：可变排量叶片泵
公开(公告)号：US08506270B2
公开(公告)日：2013-08-13
申请号：US12955580
申请日：2010-11-29
申请人： Jun Soeda
发明人： Jun Soeda
IPC分类号： F03C2/00 , F16K15/00
CPC分类号： F04C2/3442 , F04C14/226 , F04C14/28 , Y10T137/7927
摘要： A variable displacement vane pump including a relief valve which includes a valve bore, a spherical valve element in the valve bore, a valve seat fixed onto one axial side of the valve bore and having a through hole and an annular seat surface on which the valve element is seated when the relief valve is in a closed position, a coil spring disposed on the other axial side of the valve bore, and a valve element retainer disposed between the valve element and the coil spring, wherein the seat surface is configured such that when the relief valve is in the closed position, a center of the valve element is located offset from a central axis of one winding seating portion of the coil spring which is disposed on an opposite side of the seat surface, in a radial direction of the valve bore.
摘要翻译：一种包括安全阀的可变排量叶片泵，包括阀孔，阀孔中的球形阀元件，固定在阀孔的一个轴向侧上并具有通孔和环形座表面的阀座，阀座当安全阀处于关闭位置时，元件就位，设置在阀孔的另一轴向侧的螺旋弹簧和设置在阀元件和螺旋弹簧之间的阀元件保持器，其中座表面构造成使得当安全阀处于关闭位置时，阀元件的中心位于与设置在座表面的相对侧上的螺旋弹簧的一个缠绕支座部分的中心轴线的偏心处，阀孔。

8. 发明授权

US07155906B2 Power steering system 失效
标题翻译：动力转向系统
公开(公告)号：US07155906B2
公开(公告)日：2007-01-02
申请号：US11073525
申请日：2005-03-08
申请人： Tadaharu Yokota , Jun Soeda
发明人： Tadaharu Yokota , Jun Soeda
IPC分类号： B62D5/06 , B62D5/30
CPC分类号： B62D5/30 , B62D5/065
摘要： In a hydraulic power steering system employing a power cylinder accommodating therein a piston connected to a steering mechanism for steering assistance, and having first and second hydraulic chambers defined on both sides of the piston, hydraulic pressure is supplied through first and second fluid lines to the respective hydraulic chambers. A communicating circuit is provided to intercommunicate the first and second fluid lines therevia. A directional control valve, disposed in the communicating circuit, has a poppet valve mechanism, which is switched to a valve-open position in presence of a hydraulic power steering system failure, to intercommunicate the first and second fluid lines with the poppet valve mechanism opened.
摘要翻译：在采用动力缸的液压动力转向系统中，其中容纳有连接到用于转向辅助的转向机构的活塞，并且具有限定在活塞的两侧的第一和第二液压室，液压通过第一和第二流体管路供应到相应的液压室。提供通信电路以使第一和第二流体管线相互通信。设置在连通回路中的方向控制阀具有提升阀机构，其在存在液压动力转向系统故障的情况下切换到阀打开位置，以使第一和第二流体管路与提升阀机构打开。

9. 发明授权

US07434655B2 Power steering system 失效
标题翻译：动力转向系统
公开(公告)号：US07434655B2
公开(公告)日：2008-10-14
申请号：US11220544
申请日：2005-09-08
申请人： Jun Soeda
发明人： Jun Soeda
IPC分类号： B62D5/06
CPC分类号： B62D5/065 , B62D5/062 , B62D5/30
摘要： A power steering system includes first and second communication passages for providing communication between a first oil passage and a second oil passage, a third communication passage for providing communication between the first and second communication passages, a directional control valve disposed in the third communication passage, a first check valve disposed in the first communication passage for allowing flow from the first oil passage to a first connection portion only, a second check valve disposed in the first communication passage for allowing flow from second oil passage to the first connection portion only, a third check valve disposed in the second communication passage for allowing flow from a second connection portion to the first oil passage only, and a fourth check valve disposed in the second communication passage for allowing flow from the second connection portion to the second oil passage only.
摘要翻译：动力转向系统包括用于提供第一油路和第二油路之间的连通的第一和第二连通通道，用于在第一和第二连通通道之间提供连通的第三连通通道，设置在第三连通通道中的方向控制阀，第一止回阀，设置在第一连通通道中，用于仅允许从第一油通道流到仅第一连接部分;第二止回阀，设置在第一连通通道中，用于允许仅从第二油通道流到第一连接部分; 第三止回阀设置在第二连通通道中，用于仅允许从第二连接部分流到第一油路;以及第四止回阀，设置在第二连通通道中，用于仅允许从第二连接部分流到第二油通道。

10. 发明授权

US07213676B2 Power steering system 失效
标题翻译：动力转向系统
公开(公告)号：US07213676B2
公开(公告)日：2007-05-08
申请号：US11073528
申请日：2005-03-08
申请人： Jun Soeda , Tadaharu Yokota
发明人： Jun Soeda , Tadaharu Yokota
IPC分类号： B62D5/06
CPC分类号： B62D5/065
摘要： In a power steering system employing a power cylinder for steering assistance, hydraulic pressure is supplied through a pair of fluid lines to respective hydraulic chambers of the power cylinder. Check valves are provided to charge a hydraulic pressure in a communicating circuit intercommunicating the two fluid lines. Also provided is a solenoid-actuated directional control valve for relieving the hydraulic pressure charged in presence of a power steering system failure. An opening of the directional control valve varies depending on a solenoid attracting force and a pressure differential between the hydraulic pressure in the communicating circuit and hydraulic pressure in a reservoir. A relatively low exciting current is applied to the solenoid when the hydraulic pressure charged exceeds a predetermined pressure value. A relatively high exciting current is applied to the solenoid when the hydraulic pressure charged is less than or equal to the predetermined pressure value.
摘要翻译：在使用动力缸用于转向辅助的动力转向系统中，液压通过一对流体管线供应到动力缸的相应液压室。提供止回阀以对连通两条流体管线的连通回路中的液压进行充电。还提供了一种用于减轻在存在动力转向系统故障的情况下充入的液压压力的电磁致动方向控制阀。方向控制阀的开口根据螺线管吸引力和连通回路中的液压与储液器中的液压之间的压力差而变化。当液压压力超过预定压力值时，相当低的励磁电流施加到螺线管。当液压压力小于或等于预定压力值时，螺线管施加相当高的励磁电流。

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