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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：US08075284B2
公开(公告)日：2011-12-13
申请号：US11287320
申请日：2005-11-28
申请人： Shoji Morita , Iwao Kondo , Hideaki Ohnishi , Yasushi Watanabe
发明人： Shoji Morita , Iwao Kondo , Hideaki Ohnishi , Yasushi Watanabe
CPC分类号： F04C15/0088 , F16N13/20
摘要： An oil pump includes a shaft bearing bore, a drive shaft supported by the shaft bearing bore, an annular space between an inner peripheral surface of the shaft bearing bore and an outer peripheral surface of the drive shaft, a communication passage portion formed on the side of a pumping chamber inside the shaft bearing bore, and a communication groove formed opposite to the communication passage portion inside the shaft bearing bore. The communication passage portion is communicated between a discharge port and the annular space, and the communication groove is communicated with the annular space. Oil is stored in the annular space from the discharge port via the communication passage portion, and the oil flows into sliding clearance spaces of first and second journal portions via the annular space and the communication passage portion and the communication groove.
摘要翻译： 油泵包括轴承孔，由轴承孔支撑的驱动轴，轴承孔的内周面与驱动轴的外周面之间的环状空间，形成在侧面的连通通路部 泵轴室内部的泵送室，以及与轴承孔内部的连通通道部分相对的连通槽。 连通通道部分在排出口和环形空间之间连通，并且连通槽与环形空间连通。 油通过连通通道部分从排出口存储在环形空间中，并且油经由环形空间和连通通道部分和连通槽流入第一和第二轴颈部分的滑动间隙空间。
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公开(公告)号：US20050106044A1
公开(公告)日：2005-05-19
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：US07361002B2
公开(公告)日：2008-04-22
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
IPC分类号： F01C21/16
CPC分类号： F04C15/0049 , F04C2/086 , F04C2/102
摘要： An oil pump to be insatalled 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： 一个油泵，被称为汽车发动机。 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：US20060120896A1
公开(公告)日：2006-06-08
申请号：US11287320
申请日：2005-11-28
申请人： Shoji Morita , Iwao Kondo , Hideaki Ohnishi , Yasushi Watanabe
发明人： Shoji Morita , Iwao Kondo , Hideaki Ohnishi , Yasushi Watanabe
CPC分类号： F04C15/0088 , F16N13/20
摘要： An oil pump includes a shaft bearing bore, a drive shaft supported by the shaft bearing bore, an annular space between an inner peripheral surface of the shaft bearing bore and an outer peripheral surface of the drive shaft, a communication passage portion formed on the side of a pumping chamber inside the shaft bearing bore, and a communication groove formed opposite to the communication passage portion inside the shaft bearing bore. The communication passage portion is communicated between a discharge port and the annular space, and the communication groove is communicated with the annular space. Oil is stored in the annular space from the discharge port via the communication passage portion, and the oil flows into sliding clearance spaces of first and second journal portions via the annular space and the communication passage portion and the communication groove.
摘要翻译： 油泵包括轴承孔，由轴承孔支撑的驱动轴，轴承孔的内周面与驱动轴的外周面之间的环状空间，形成在侧面的连通通路部 泵轴室内部的泵送室，以及与轴承孔内部的连通通道部分相对的连通槽。 连通通道部分在排出口和环形空间之间连通，并且连通槽与环形空间连通。 油通过连通通道部分从排出口存储在环形空间中，并且油经由环形空间和连通通道部分和连通槽流入第一和第二轴颈部分的滑动间隙空间。
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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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9.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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