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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：US09004882B2
公开(公告)日：2015-04-14
申请号：US13441037
申请日：2012-04-06
申请人： Hideaki Ohnishi , Koji Saga , Yasushi Watanabe
发明人： Hideaki Ohnishi , Koji Saga , Yasushi Watanabe
CPC分类号： F04C2/3442 , F04C14/223 , F04C14/226 , F04C14/24 , F04C2270/58 , F04C2270/80
摘要： A variable displacement pump includes: a first urging member arranged to urge the cam ring in a direction to increase the eccentric amount; a second urging member arranged to urge the cam ring in a direction to decrease the eccentric amount; a control hydraulic chamber arranged to receive a discharge pressure, and thereby to move the cam ring against the urging force of the first urging member; and a hydraulic pressure introduction section configured to introduce the discharge pressure to the control hydraulic chamber when the discharge pressure becomes greater than a predetermined pressure which is in a range where the cam ring is movable against a resultant force of the urging forces of the first and second urging members, and where the cam ring is not movable only against the urging force of the first urging member.
摘要翻译： 可变排量泵包括：第一推动构件，其布置成沿着增大偏心量的方向推动凸轮环; 第二推动构件，其布置成沿着减小偏心量的方向推动所述凸轮环; 控制液压室，布置成接收排出压力，从而抵抗第一推动构件的推动力移动凸轮环; 以及液压引入部，其构成为，当所述排出压力变得大于所述凸轮环能够相对于所述第一和第二作用力的合力而移动的范围内的预定压力时，将排出压力引入所述控制液压室， 第二推动构件，并且其中凸轮环不能仅抵抗第一推动构件的推动力移动。
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公开(公告)号：US20110123379A1
公开(公告)日：2011-05-26
申请号：US12947084
申请日：2010-11-16
申请人： Koji Saga , Hideaki Ohnishi , Yasushi Watanabe
发明人： Koji Saga , Hideaki Ohnishi , Yasushi Watanabe
IPC分类号： F01C20/18
CPC分类号： F04C2/3442 , F04C14/226 , F04C15/0049 , F04C2270/12 , F04C2270/14
摘要： A variable displacement pump includes a pump structural member configured to change volumes of a plurality of working chambers by rotation of a rotor, so as to introduce oil through an inlet port into the working chambers and to discharge the oil through a discharge port, and further configured to oscillate a cam ring by a discharge pressure introduced into a control oil chamber. A first coil spring is provided to force the cam ring in a direction for increasing of a rate of change of the working-chamber volume. A second coil spring is provided to force the cam ring in a direction for decreasing of the rate of change of the working-chamber volume. The first and second coil springs are laid out on both sides of an arm portion of the cam ring in a manner so as to be opposed to each other.
摘要翻译： 可变排量泵包括泵结构构件，其构造成通过转子的旋转来改变多个工作室的体积，以便通过入口将油引入到工作室中并且通过排出口排出油，并且进一步 构造成通过引入到控制油室中的排出压力来摆动凸轮环。 设置第一螺旋弹簧以迫使凸轮环沿着增加工作室容积的变化率的方向。 提供第二螺旋弹簧以迫使凸轮环沿着减小工作室容积的变化率的方向。 第一和第二螺旋弹簧以彼此相对的方式布置在凸轮环的臂部的两侧。
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5.发明申请公开(公告)号：US20110085921A1
公开(公告)日：2011-04-14
申请号：US12876351
申请日：2010-09-07
IPC分类号： F04B49/00
CPC分类号： F01L1/3442 , F01L2001/3443 , F01L2001/34453 , F01L2001/34469 , F01M1/12 , F01M1/16 , F01M9/10 , F01M2001/0238 , F01M2001/0246 , F04C2/3442 , F04C14/22 , F04C14/24
摘要： In a hydraulic pressure circuit including an introduction section through which oil is introduced, a main passage section installed at a downstream side of the introduction section to be communicated with a supply section through which oil is supplied to each of slide sections of an internal combustion engine, a branch passage branched from the main passage section to supply oil to a hydraulic pressure actuator, and a control valve having a valve body which is moved in accordance with a pressure of an upstream side thereof, and a variable capacitance pump configured to drain oil to the introduction section, the variable capacitance pump is configured to vary a drained flow quantity in accordance with the drained pressure of oil and a pressure under which the oil drained flow quantity is started to be varied is higher than a pressure under which the valve body is started to move.
摘要翻译： 在包括引入油的导入部的液压回路中，主通路部安装在导入部的下游侧，与供给部连通，供给部通过该供给部供给到内燃机的各滑动部 ，从主通路部分分支以向液压致动器供油的分支通道，以及具有根据其上游侧的压力移动的阀体的控制阀以及构造成排出油的可变电容泵 引入部分，可变电容泵被配置为根据油的排出压力改变排出的流量，并且开始排油流量的变化的压力高于阀体的压力 开始动起来了
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公开(公告)号：US20090291000A1
公开(公告)日：2009-11-26
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：US07290995B2
公开(公告)日：2007-11-06
申请号：US11287459
申请日：2005-11-28
申请人： Hideaki Ohnishi , Yasushi Watanabe
发明人： Hideaki Ohnishi , Yasushi Watanabe
CPC分类号： F04C15/0073 , F04C2/102 , F04C11/001 , F04C2230/60 , Y10T29/49236
摘要： A tandem type trochoid pump is comprised of a drive shaft having a non-circular end portion, a spacer positioned between a first trochoid pump and a second trochoid pump in a housing body, a first fixing portion for fixing a first inner rotor of the first trochoid pump to the drive shaft in a rotational direction, and a second fixing portion for fixing a second inner rotor of the second trochoid pump to the drive shaft in the rotational direction.
摘要翻译： 串联式次摆线泵由具有非圆形端部的驱动轴，位于壳体内的第一次摆线泵和第二次摆线泵之间的间隔件构成，第一固定部分用于固定第一内侧转子 次摆线泵沿旋转方向到驱动轴，以及第二固定部分，用于将第二次摆线泵的第二内转子沿旋转方向固定到驱动轴上。
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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：US09109596B2
公开(公告)日：2015-08-18
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
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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10.发明授权公开(公告)号：US08834132B2
公开(公告)日：2014-09-16
申请号：US12876351
申请日：2010-09-07
IPC分类号： F04B49/00 , F01C1/00 , F03C2/00 , F03C4/00 , F04C2/00 , F04C18/00 , F04C14/18 , F04C28/18 , F01C20/18 , F15B11/00 , F15B13/00 , F01M1/02 , F01M9/10 , F01M1/16 , F01M1/12 , F04C2/344 , F04C14/22 , F04C14/24 , F01L1/344
CPC分类号： F01L1/3442 , F01L2001/3443 , F01L2001/34453 , F01L2001/34469 , F01M1/12 , F01M1/16 , F01M9/10 , F01M2001/0238 , F01M2001/0246 , F04C2/3442 , F04C14/22 , F04C14/24
摘要： In a hydraulic pressure circuit including an introduction section through which oil is introduced, a main passage section installed at a downstream side of the introduction section to be communicated with a supply section through which oil is supplied to each of slide sections of an internal combustion engine, a branch passage branched from the main passage section to supply oil to a hydraulic pressure actuator, and a control valve having a valve body which is moved in accordance with a pressure of an upstream side thereof, and a variable capacitance pump configured to drain oil to the introduction section, the variable capacitance pump is configured to vary a drained flow quantity in accordance with the drained pressure of oil and a pressure under which the oil drained flow quantity is started to be varied is higher than a pressure under which the valve body is started to move.
摘要翻译： 在包括引入油的导入部的液压回路中，主通路部安装在导入部的下游侧，与供给部连通，供给部通过该供给部供给到内燃机的各滑动部 ，从主通路部分分支以向液压致动器供油的分支通道，以及具有根据其上游侧的压力移动的阀体的控制阀以及构造成排出油的可变电容泵 引入部分，可变电容泵被配置为根据油的排出压力改变排出的流量，并且开始排油流量的变化的压力高于阀体的压力 开始动起来了
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