Variable displacement vane pump having multiple dampening springs
    1.
    发明授权
    Variable displacement vane pump having multiple dampening springs 有权
    具有多个润滑弹簧的可变排量叶片泵

    公开(公告)号:US09004882B2

    公开(公告)日:2015-04-14

    申请号:US13441037

    申请日:2012-04-06

    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。

    VARIABLE DISPLACEMENT PUMP, OIL JET AND LUBLICATING SYSTEM USING VARIABLE DISPLACEMENT PUMP
    2.
    发明申请
    VARIABLE DISPLACEMENT PUMP, OIL JET AND LUBLICATING SYSTEM USING VARIABLE DISPLACEMENT PUMP 审中-公开
    可变位移泵,油喷射和使用可变位移泵的泄漏系统

    公开(公告)号:US20110194967A1

    公开(公告)日:2011-08-11

    申请号:US13011986

    申请日:2011-01-24

    IPC分类号: F04C15/00

    CPC分类号: F04C2/3441 F04C14/226

    摘要: A variable displacement pump arranged to supply a hydraulic fluid to an oil jet arranged to inject the hydraulic fluid to a piston of an internal combustion engine, the variable displacement pump includes: a pump constituting section arranged to be driven and rotated by the internal combustion engine, and thereby to discharge the hydraulic fluid; a movable member arranged to decrease the flow rate discharged from the discharge portion by moving in one direction; a control section configured to move the movable member in the one direction by a predetermined amount when the discharge pressure becomes a first discharge pressure, and to further move the movable member in the one direction when the discharge pressure becomes a second discharge pressure larger than the first discharge pressure, the first discharge pressure being set smaller than the predetermined pressure at which the oil jet starts to inject the hydraulic fluid.

    摘要翻译: 一种可变排量泵,其设置为将液压流体供应到喷射液压流体到内燃机的活塞上的喷油器,所述可变排量泵包括:泵构成部,其被所述内燃机驱动和旋转 从而排出液压流体; 可动构件,其设置成通过沿一个方向移动来减小从排出部排出的流量; 控制部,被配置为当所述排出压力变为第一排出压力时将所述可动构件沿所述一个方向移动预定量,并且当所述排出压力变为比所述第二排出压力大的第二排出压力时,使所述可动构件沿所述一个方向进一步移动; 第一排出压力,第一排出压力被设定为小于油喷射开始注入液压流体的预定压力。

    VARIABLE DISPLACEMENT PUMP
    3.
    发明申请
    VARIABLE DISPLACEMENT PUMP 有权
    可变位移泵

    公开(公告)号:US20110123379A1

    公开(公告)日:2011-05-26

    申请号:US12947084

    申请日:2010-11-16

    IPC分类号: F01C20/18

    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。

    VARIABLE DISPLACEMENT VANE PUMP
    5.
    发明申请
    VARIABLE DISPLACEMENT VANE PUMP 失效
    可变位移帆泵

    公开(公告)号:US20090291000A1

    公开(公告)日:2009-11-26

    申请号:US12469318

    申请日:2009-05-20

    IPC分类号: F04B17/05 F04C2/344

    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。

    Tandem type trochoid pump and method of assembling the same
    6.
    发明授权
    Tandem type trochoid pump and method of assembling the same 失效
    串联式次摆线泵及其组装方法

    公开(公告)号:US07290995B2

    公开(公告)日:2007-11-06

    申请号:US11287459

    申请日:2005-11-28

    IPC分类号: F04C2/10 F04C11/00 B23P15/00

    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。

    Variable displacement vane pump
    7.
    发明授权
    Variable displacement vane pump 失效
    可变排量叶片泵

    公开(公告)号:US08142173B2

    公开(公告)日:2012-03-27

    申请号:US12469318

    申请日:2009-05-20

    IPC分类号: F04B35/00 F01C1/30

    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。

    "> Method of producing a high-melting powder of
2,2-bis�4'-(2
    8.
    发明授权
    Method of producing a high-melting powder of 2,2-bis�4'-(2",3"-dibromopropoxy)-3',5'-dibromophenyl!-propane 失效
    制备2,2-双[4' - (2“,3” - 二溴丙氧基)-3',5'-二溴苯基]丙烷的高熔点粉末的方法

    公开(公告)号:US5710347A

    公开(公告)日:1998-01-20

    申请号:US533822

    申请日:1995-09-26

    CPC分类号: C07C41/40

    摘要: This invention relates to a method of producing a high-melting powder of 2,2-bis�4'-(2",3"-dibromopropoxy)-3',5'-dibromophenyl!propane characterized by comprising a step of adding water to a solution of 2,2-bis�4'-(2",3"-dibromopropoxy)-3',5'-dibromophenyl!-propane in an organic solvent in the presence of a surfactant to give a water-in-oil emulsion and a step of removing the organic solvent from the emulsion in the presence of a crystal nucleus to induce crystallization to give an aqueous dispersion of 2,2-bis�4'-(2",3"-dibromopropoxy)-3',5'-dibromophenyl!propane. In accordance with this invention, crystallization is carried out in the state of an emulsion under assistance of a surfactant so that an ordinary stirrer can be used in production without resort to any special high-shear stirring equipment. Moreover, since a high-melting grade of 2,2-bis�4'-(2",3"-dibromopropoxy)-3',5'-dibromophenyl!propane is obtained as an aqueous dispersion, workability and safety in the subsequent processing are improved.

    摘要翻译: 本发明涉及2,2-双[4' - (2“,3” - 二溴丙氧基)-3',5'-二溴苯基]丙烷的高熔点粉末的制造方法,其特征在于, 在有机溶剂中,在表面活性剂存在下,向2,2-双[4' - (2“,3” - 二溴丙氧基)-3',5'-二溴苯基] - 丙烷的溶液中加入水,得到 油包水乳液和在晶核存在下从乳液中除去有机溶剂以诱导结晶以得到2,2-双[4' - (2“,”3“)的水分散体的步骤 - 二溴丙氧基)-3',5'-二溴苯基]丙烷。 根据本发明,在表面活性剂的辅助下,在乳液状态下进行结晶,使得普通搅拌器可以用于生产而不用任何特殊的高剪切搅拌设备。 此外,由于获得作为水分散体的2,2-双[4' - (2“,3” - 二溴丙氧基)-3',5'-二溴苯基]丙烷的高熔点等级,可加工性和安全性 后续处理得到改善。

    Variable displacement pump
    9.
    发明授权
    Variable displacement pump 有权
    可变排量泵

    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

    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。

    Variable displacement pump
    10.
    发明授权
    Variable displacement pump 有权
    可变排量泵

    公开(公告)号:US08613610B2

    公开(公告)日:2013-12-24

    申请号:US12947084

    申请日:2010-11-16

    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。