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公开(公告)号：US08684702B2
公开(公告)日：2014-04-01
申请号：US12719147
申请日：2010-03-08
IPC分类号： F04B49/00
CPC分类号： F04C14/223 , F04C2/3442 , F04C14/226 , F04C2210/14
摘要： A variable displacement oil pump for an automotive engine. The oil pump includes a cam ring accommodating thereinside a pump element having a rotor. The cam ring is swingingly movably accommodated in a housing and biased in a direction to increase an eccentricity amount of the cam ring relative to the axis of the rotor by a biasing member. First and second pressure chambers are defined inside the housing by the outer peripheral section of the cam ring. The first pressure chamber is supplied with a discharge pressure to be applied to the cam ring to oppose to a biasing force of the biasing member. The second pressure chamber is supplied with the discharge pressure to be applied to the cam ring to assist the biasing force of the biasing member. Additionally, a control device is provided for controlling supply of the discharge pressure to the second pressure chamber.
摘要翻译： 一种用于汽车发动机的可变排量油泵。 油泵包括容纳在具有转子的泵元件的内部的凸轮环。 凸轮环可旋转地容纳在壳体中并且通过偏置构件沿着相对于转子的轴线增加凸轮环的偏心量的方向偏置。 第一和第二压力室通过凸轮环的外周部分限定在壳体的内部。 第一压力室被供给施加到凸轮环的排出压力，以抵抗偏置构件的偏置力。 第二压力室被供给要施加到凸轮环的排出压力以帮助偏置构件的偏置力。 另外，提供控制装置用于控制对第二压力室的排出压力的供给。
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公开(公告)号：US08545200B2
公开(公告)日：2013-10-01
申请号：US12719170
申请日：2010-03-08
CPC分类号： F04C14/226 , F04C2/3442 , F04C2210/14
摘要： Variable displacement oil pump includes a: rotor; vanes; cam ring; housing; biasing member biasing the cam ring in a direction enlarging an eccentricity between centers of the rotor and inner circumferential surface of the cam ring; a contact surface to contact with a cam ring outer circumferential surface via a biasing force applied to the cam ring by the biasing member; a control chamber separately formed by the contact surface and a swing fulcrum of the cam ring on a cam ring outer circumference when the contact surface contacts the cam ring outer circumferential surface, and causing the cam ring to swing against the biasing force of the biasing member by a pressure from a discharge portion to the control chamber; and a choking portion formed on the outer circumferential surface of the cam ring to maintain a pressure of the control chamber even when the cam ring swings.
摘要翻译： 变排量油泵包括：转子; 叶片 凸轮环 住房; 偏压构件沿着增大转子的中心和凸轮环的内周面之间的偏心的方向偏置凸轮环; 接触表面，其经由偏压构件施加到所述凸轮环的偏压力与凸轮环外周表面接触; 所述控制室在所述接触面与所述凸轮环的外周面接触时由所述接触面和所述凸轮环的摆动支点分别形成在所述凸轮环外周上，并且使所述凸轮环抵抗所述偏置构件的偏置力而摆动 通过从排出部分到控制室的压力; 以及形成在凸轮环的外周面上的阻塞部分，以便即使当凸轮环摆动时也保持控制室的压力。
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公开(公告)号：US20100232989A1
公开(公告)日：2010-09-16
申请号：US12719170
申请日：2010-03-08
IPC分类号： F04C14/22
CPC分类号： F04C14/226 , F04C2/3442 , F04C2210/14
摘要： A variable displacement oil pump includes a rotor; a plurality of vanes; a cam ring; a housing; a biasing member configured to biases the cam ring in a direction that enlarges an eccentricity between a rotation center of the rotor and a center of inner circumferential surface of the cam ring; a contact surface configured to become in contact with an outer circumferential surface of the cam ring by means of a biasing force applied to the cam ring by the biasing member; a control chamber separately formed by the contact surface and a swing fulcrum of the cam ring on an outer circumference of the cam ring when the contact surface is in contact with the outer circumferential surface of the cam ring, and configured to cause the cam ring to swing against the biasing force of the biasing member by a pressure introduced from a discharge portion to the control chamber; and a choking portion formed on the outer circumferential surface of the cam ring so as to maintain a pressure of the control chamber even when the cam ring swings.
摘要翻译： 可变排量油泵包括转子; 多个叶片; 凸轮环 房屋; 偏置构件，其构造成在所述转子的旋转中心与所述凸轮环的内周面的中心之间偏心的方向偏压所述凸轮环; 接触面，其被构造成通过由所述偏置构件施加到所述凸轮环的偏置力而与所述凸轮环的外周面接触; 所述控制室在所述接触面与所述凸轮环的外周面接触时，由所述接触面和所述凸轮环的摆动支点分别形成在所述凸轮环的外周上，并且构造成使所述凸轮环 通过从排出部分引导到控制室的压力来抵抗偏置构件的偏置力; 以及形成在凸轮环的外周面上的阻塞部，以便即使当凸轮环摆动时也保持控制室的压力。
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公开(公告)号：US08142173B2
公开(公告)日：2012-03-27
申请号：US12469318
申请日：2009-05-20
申请人： Koji Saga , Yasushi Watanabe , Hideaki Ohnishi
发明人： Koji Saga , Yasushi Watanabe , Hideaki Ohnishi
CPC分类号： F04C2/3564 , F04C2/3442 , F04C14/226
摘要： In a variable displacement vane pump employing a cam ring, a pump rotor, and a plurality of vanes, each slidably fitted into the rotor, a biasing member is provided to force the cam ring in a direction that a geometric center of an inner peripheral surface of the cam ring and a rotation center of the rotor are spaced apart from each other. A force, by which the cam ring can be oscillated against the biasing member in accordance with a buildup of a pressure in a pump discharge portion, acts on the inner peripheral surface of the cam ring.
摘要翻译： 在采用凸轮环的可变排量叶片泵，泵转子和多个叶片，每个叶片可滑动地装配到转子中，设置有偏压构件以迫使凸轮环沿着内周表面的几何中心 并且转子的旋转中心彼此间隔开。 根据泵排出部分中的压力的积聚，凸轮环能够抵靠偏置构件摆动的力作用在凸轮环的内周面上。
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公开(公告)号：US20130164163A1
公开(公告)日：2013-06-27
申请号：US13615709
申请日：2012-09-14
申请人： Hideaki Ohnishi , Koji Saga , Yasushi Watanabe
发明人： Hideaki Ohnishi , Koji Saga , Yasushi Watanabe
IPC分类号： F04C2/00
CPC分类号： F04C2/344 , F04C2/348 , F04C14/226
摘要： A variable displacement pump includes: a first control oil chamber which moves a cam ring toward a direction against a biasing force of a biasing member when a discharge pressure is introduced thereinto; a second control oil chamber which acts a hydraulic pressure upon the cam ring by cooperating with the biasing force of the biasing member when hydraulic oil is introduced thereinto; a switching mechanism which switches between one state in which hydraulic oil whose pressure is decreased than a discharge pressure is introduced to the second control oil chamber from the discharge section and another state in which hydraulic oil is discharged from the second control oil chamber; and a control mechanism operated before an eccentricity of the cam ring becomes a minimum and which discharges a greater amount of hydraulic oil within the second control oil chamber as the discharge pressure becomes larger.
摘要翻译： 可变排量泵包括：第一控制油室，当排出压力被引入时，使凸轮环朝向抵抗偏置构件的偏压力的方向移动; 第二控制油室，当液压油被引入时，通过与偏置构件的偏置力协调来对凸轮环施加液压; 切换机构，其切换在压力低于排出压力的液压油从排出部引入到第二控制油室的一个状态和从第二控制油室排出液压油的状态; 并且在凸轮环的偏心度变得最小之前操作的控制机构，并且随着排出压力变大，排出第二控制油室内的更大量的液压油。
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公开(公告)号：US20110189043A1
公开(公告)日：2011-08-04
申请号：US13011972
申请日：2011-01-24
申请人： Yasushi WATANABE , Koji Saga , Hideaki Ohnishi
发明人： Yasushi WATANABE , Koji Saga , Hideaki Ohnishi
IPC分类号： F01C19/08
CPC分类号： F04C2/3446 , F01C19/08 , F04C14/22 , F04C15/06
摘要： A vane pump in which oil is drawn from at least one side, in an axial direction, of a cam ring and is discharged from at least one side, in the axial direction, of the cam ring, has a portion defined by a groove formed on an inner circumference surface of the cam ring. The groove extends along a circumferential direction of the inner circumference surface of the cam ring and is arranged in a position including a middle of an axial direction width on the inner circumference surface. The groove is arranged in an oil suction section or an oil discharge section of the cam ring.
摘要翻译： 一种叶片泵，其中油从凸轮环的轴向方向的至少一侧被拉出并从凸轮环的轴向的至少一侧排出，具有由形成的槽形成的部分 在凸轮环的内圆周表面上。 所述槽沿着所述凸轮环的内周面的圆周方向延伸，并且在所述内周面上配置在包括轴向宽度的中间的位置。 凹槽布置在凸轮环的吸油部或排油部中。
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公开(公告)号：US07704061B2
公开(公告)日：2010-04-27
申请号：US10984927
申请日：2004-11-10
申请人： Hideaki Ohnishi , Yasushi Watanabe , Shoji Morita
发明人： Hideaki Ohnishi , Yasushi Watanabe , Shoji Morita
CPC分类号： F04C15/0049 , F04C2/086 , F04C2/102 , F04C2250/102
摘要： An oil pump includes pump chambers each having a volume varied by engine drive and for pressurizing oil inhaled through an inlet port and discharge it through an outlet port, and a branch passage connected between upstream and downstream sides of the outlet port at branch and confluent points, wherein the branch passage in the vicinity of the confluent point is shifted in pulse-pressure phase with respect to the outlet port.
摘要翻译： 油泵包括泵室，每个泵室具有通过发动机驱动而变化的体积，并且用于对通过入口端口吸入的油进行加压，并通过出口排出;以及分支通道，其在分支和汇合点处连接在出口的上游侧和下游侧之间 其中，汇合点附近的分支通道相对于出口以脉冲压力相位移位。
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公开(公告)号：US20050106053A1
公开(公告)日：2005-05-19
申请号：US10985898
申请日：2004-11-12
申请人： Hideaki Ohnishi , Yasushi Watanabe , Shoji Morita
发明人： Hideaki Ohnishi , Yasushi Watanabe , Shoji Morita
CPC分类号： F04C15/0049 , F04C2/086 , F04C2/102
摘要： An oil pump to be installed to an engine of an automotive vehicle. The oil pump includes a section defining a suction port and a section defining a discharge port. A main unit of the oil pump has a section defining a plurality of pump chambers. Volume of each pump chamber continuously changes to increase and decrease under driving of the engine so as to pressurize oil sucked through the suction port and discharge the oil through the discharge port. A section defining an oil chamber to which the oil flows is provided such that the oil chamber has a vertically upper side which is communicated with the discharge port through a communicating hole.
摘要翻译： 一种安装在汽车发动机上的油泵。 油泵包括限定吸入口和限定排出口的部分的部分。 油泵的主单元具有限定多个泵室的部分。 每个泵室的容积在发动机驱动下连续地变化，以增加通过吸入口吸入的油并通过排出口排出油。 设置油流动的油室的部分设置成使得油室具有通过连通孔与排出口连通的竖直上侧。
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公开(公告)号：US6086337A
公开(公告)日：2000-07-11
申请号：US121119
申请日：1998-07-23
申请人： Yasushi Watanabe , Hideaki Ohnishi
发明人： Yasushi Watanabe , Hideaki Ohnishi
摘要： An oil pump effects a pumping action to deliver oil from an inlet port to a first outlet port and also to a second outlet port. An oil supply passage is connected to the second outlet port. A regulator valve has a bore, a spool disposed in the bore, a pressure chamber, and a pressure admission port connected to the oil supply passage and communicating with the pressure chamber. A branch passage connected to the oil supply passage opens to the bore. The regulator valve also has relief port connected to the inlet port and opening to the bore, and a transfer port connected to the first outlet port. The spool disposed in the bore is moveable responsive to pressure within the pressure chamber between a first position in which the transfer port is connected to the branch passage and a second position in which the transfer port is connected to the relief port.
摘要翻译： 油泵实现泵送动作，以将油从入口输送到第一出口以及第二出口。 供油通道连接到第二出口。 调节阀具有孔，设置在孔中的卷轴，压力室和连接到供油通道并与压力室连通的压力入口。 连接到供油通道的支路通向孔。 调节阀还具有连接到入口并且通向孔的释放口，以及连接到第一出口的输送口。 设置在孔中的阀芯可响应于压力室内的压力在第一位置和第二位置之间移动，第一位置和第二位置之间位于传送口连接到分支通道的第二位置。
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10.发明授权
公开(公告)号：US5797732A
公开(公告)日：1998-08-25
申请号：US797638
申请日：1997-02-07
申请人： Yasushi Watanabe , Hideaki Ohnishi
发明人： Yasushi Watanabe , Hideaki Ohnishi
CPC分类号： F04C14/12 , F04C14/26 , F04C15/06 , F04C2/102 , Y10T137/2605
摘要： An oil pump effects a pumping action to deliver oil from an inlet port to a first outlet port and also to a second outlet port. An oil supply passage is connected to the second outlet port. A regulator value has a bore, a spool disposed in the bore, a pressure chamber, and a pressure admission port connected to the oil supply passage and communicating with the pressure chamber. A branch passage connected to the oil supply passage opens to the bore. The regulator valve also has relief port connected to the inlet port and opening to the bore, and a transfer port connected to the first outlet port. The spool disposed in the bore is moveable responsive to pressure within the pressure chamber between a first position in which the transfer port is connected to the branch passage and a second position in which the transfer port is connected to the relief port.
摘要翻译： 油泵实现泵送动作，以将油从入口输送到第一出口以及第二出口。 供油通道连接到第二出口。 调节器值具有孔，设置在孔中的卷轴，压力室和连接到供油通道并与压力室连通的压力入口。 连接到供油通道的支路通向孔。 调节阀还具有连接到入口并且通向孔的释放口，以及连接到第一出口的输送口。 设置在孔中的阀芯可响应于压力室内的压力在第一位置和第二位置之间移动，第一位置和第二位置之间位于传送口连接到分支通道的第二位置。
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