公开(公告)号：US20120164018A1

公开(公告)日：2012-06-28

申请号：US13384423

申请日：2010-08-02

Applicant: Yang Lu ,  Hua Lei

Inventor： Yang Lu ,  Hua Lei

IPC: F04C2/344

CPC classification number: F04C2/3441 ,  F01C21/0845 ,  F01C21/106 ,  F04C15/0049 ,  F04C2220/24 ,  F04C2250/301

Abstract: The invention discloses a metering pump with a special-shaped cavity, which comprises a housing, a rotor and two cover plates. The housing is a cylinder with a special-shaped surface inner cavity, an inlet and an outlet, and the special-shaped surface inner cavity is formed by combining a circular arc surface with a non-circular arc surface. The rotor comprises a rotor body and two pairs of combined sliding plates, wherein the rotor body is a column body processed with a transmission shaft, a centering shaft and crisscross guide grooves, and the combined sliding plates are mounted in the guide grooves. The cover plates are flat plates processed with bearing holes. The two end surfaces of the housing are matched with the cover plates for constituting a sealed cavity. In the sealed cavity, the rotor is matched with the bearing holes on the cover plates through the transmission shaft and the centering shaft. External driving force couple is acted on the transmission shaft so as to enable the rotor to rotate. When the rotor rotates, the non-circular arc surface of the special-shaped surface inner cavity can enable the two pairs of the combined sliding plates to slide in a cross manner so as to suck in fluid from the inlet and press out the fluid from the outlet. When the rotor rotates one cycle, four standard volumes are formed in a cavity body and the equal quantity of the fluid flows by the cavity body when the rotor rotates every one cycle. The flow rate of the fluid is metered by counting the number of rotation cycles of the rotor.

Abstract translation: 本发明公开了一种具有特殊型腔的计量泵，包括壳体，转子和两个盖板。 壳体是具有特殊形状的表面内腔，入口和出口的圆柱体，并且通过将圆弧表面与非圆弧表面组合而形成特殊表面内腔。 转子包括转子体和两对组合的滑动板，其中转子体是用传动轴，定心轴和十字形导向槽加工的柱体，并且组合的滑板安装在引导槽中。 盖板是用轴承孔加工的平板。 壳体的两个端面与用于构成密封腔的盖板相匹配。 在密封腔中，转子通过传动轴和定心轴与盖板上的轴承孔匹配。 外部驱动力对作用在传动轴上，以使转子能够旋转。 当转子旋转时，特殊形状的表面内腔的非圆弧表面能够使两对组合的滑板以交叉的方式滑动，从而从入口吸入流体并将流体从 出口。 当转子旋转一个周期时，空腔体中形成四个标准体积，当转子每一个循环旋转时，等量的流体由空腔体流动。 通过对转子的旋转次数进行计数来计量流体的流量。

公开(公告)号：US20120076683A1

公开(公告)日：2012-03-29

申请号：US12947113

申请日：2010-11-16

Applicant: Jaepil LIM

Inventor： Jaepil LIM

IPC: F01C1/00

CPC classification number: F04C2/3441 ,  F04C2/086 ,  F04C14/226 ,  F04C15/0049

Abstract: A variable oil pump includes an inlet connected to supply oil into the housing of the variable oil pump an arc-shaped intake space formed in the housing to be connected to a pumping space between veins mounted on a rotor in the variable oil pump; and a buffer space having a large cross-sectional area than inlet and connected with inlet and intake space, such that it is possible to reduce pulse noise generated in the variable oil pump by reducing intake resistance and vortex which are generated in sucking oil at the intake side of the variable oil pump.

Abstract translation: 可变油泵包括连接到可变油泵壳体中的油的入口，形成在壳体中的弧形进气空间，以连接到可变油泵中安装在转子上的静脉之间的泵送空间; 以及具有比入口大的截面面积并与入口和进气空间连接的缓冲空间，从而可以通过减少在可变油泵中吸入油中产生的进气阻力和涡流来减少在可变油泵中产生的脉冲噪声 可变油泵的进气侧。

公开(公告)号：US20120020807A1

公开(公告)日：2012-01-26

申请号：US12841145

申请日：2010-07-21

Applicant: CHRISTIAN FERNHOLZ ,  TIMOTHY OFFERLE ,  DANIEL TUTTLE ,  JEFF WILLIAMS

Inventor： CHRISTIAN FERNHOLZ ,  TIMOTHY OFFERLE ,  DANIEL TUTTLE ,  JEFF WILLIAMS

IPC: F04B49/06

CPC classification number: F04C15/0049 ,  F04C2/344 ,  F04C14/08 ,  F04C2270/13 ,  F04C2270/86

Abstract: A method for attenuating hydraulic pump flow pulses is described. The method includes pumping a fluid at a first hydraulic flow rate to an operating device via the pump, the flow being in the form of discrete fluid pulses. Further, the method includes obtaining values of plurality of parameters related to the pulses produced by the pump and attenuating the pulses by modifying the first hydraulic flow rate to a second hydraulic flow rate based on the obtained values.

Abstract translation: 描述了一种用于衰减液压泵流量脉冲的方法。 该方法包括以第一液压流速将流体经由泵泵送到操作装置，该流动是离散流体脉冲的形式。 此外，该方法包括获得与泵产生的脉冲相关的多个参数的值，并且基于获得的值将第一液压流速修正为第二液压流量来衰减脉冲。

公开(公告)号：US20110123379A1

公开(公告)日：2011-05-26

申请号：US12947084

申请日：2010-11-16

Applicant: Koji Saga ,  Hideaki Ohnishi ,  Yasushi Watanabe

Inventor： Koji Saga ,  Hideaki Ohnishi ,  Yasushi Watanabe

IPC: F01C20/18

CPC classification number: F04C2/3442 ,  F04C14/226 ,  F04C15/0049 ,  F04C2270/12 ,  F04C2270/14

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100247362A1

公开(公告)日：2010-09-30

申请号：US12651790

申请日：2010-01-04

Applicant: Toshihiro KOIZUMI ,  Masaki Misunou ,  Chiharu Nakazawa

Inventor： Toshihiro KOIZUMI ,  Masaki Misunou ,  Chiharu Nakazawa

IPC: F04C15/00 ,  F04C2/14

CPC classification number: F04C2/18 ,  B60T8/368 ,  B60T8/4031 ,  F01C19/005 ,  F04C2/086 ,  F04C2/102 ,  F04C11/001 ,  F04C14/02 ,  F04C15/0015 ,  F04C15/0026 ,  F04C15/0049 ,  F04C15/0073 ,  F04C15/06 ,  F04C2240/60

Abstract: A gear pump includes: a pump chamber formed in the housing; a gear disposed in the pump chamber; a side plate disposed between a wall of the pump chamber and the gear, and arranged to seal a side surface of the gear, the side plate including an annular receiving portion formed between the wall of the pump chamber and the side plate, the receiving portion having a bottom portion and a side wall portion; a seal member disposed in the receiving portion of the side plate, and arranged to liquid-tightly separate the low pressure chamber and the high pressure chamber of the pump chamber; a pressure introducing section arranged to introduce a pressure generated by the pump operation, to a space between the bottom portion of the receiving portion and the seal member, and thereby to separate the seal member away from the bottom portion of the receiving portion.

Abstract translation: 齿轮泵包括：形成在壳体中的泵室; 设置在泵室中的齿轮; 设置在所述泵室的壁和所述齿轮之间并且被布置成密封所述齿轮的侧表面的侧板，所述侧板包括形成在所述泵室的壁和所述侧板之间的环形容纳部，所述接收部 具有底部和侧壁部分; 密封构件，其设置在所述侧板的所述容纳部中，并且配置成将所述低压室与所述泵室的高压室液密地分离; 压力引导部分，其被布置成将由泵操作产生的压力引入到容纳部分的底部和密封构件之间的空间中，从而将密封构件分离成远离接收部分的底部。

公开(公告)号：US20100158739A1

公开(公告)日：2010-06-24

申请号：US12337868

申请日：2008-12-18

Applicant: Weishun Ni ,  Steven A. Heitz ,  Joseph Wetch ,  Christian L. Griffiths

Inventor： Weishun Ni ,  Steven A. Heitz ,  Joseph Wetch ,  Christian L. Griffiths

IPC: F01C1/18

CPC classification number: F04C2/088 ,  F04C2/084 ,  F04C2/18 ,  F04C15/0049

Abstract: A gear pump comprises a drive gear being mounted for rotation about a first axis and having a plurality of gear teeth at a radially outer location. A driven gear is mounted for rotation about a second axis, and having a plurality of teeth at a radially outer location. The drive gear teeth engage the driven gear teeth at a contact face to cause the driven gear to rotate. Slots are formed in the contact face of one of the drive and driven gear teeth.

Abstract translation: 齿轮泵包括驱动齿轮，其被安装成围绕第一轴线旋转并且在径向外部位置具有多个齿轮齿。 从动齿轮安装成围绕第二轴线旋转，并且在径向外部位置具有多个齿。 驱动齿轮齿在接触面处与从动齿轮齿接合，以使从动齿轮旋转。 狭槽形成在驱动齿轮齿和从动齿轮齿之一的接触面中。

公开(公告)号：US20090129950A1

公开(公告)日：2009-05-21

申请号：US12289708

申请日：2008-10-31

Applicant: Masashi Sadatomi ,  Takatoshi Watanabe

Inventor： Masashi Sadatomi ,  Takatoshi Watanabe

IPC: F04B39/00

CPC classification number: F04C2/10 ,  F04C15/0049

Abstract: The invention provides an oil pump resonator in which various vibrations caused by pulsations that change in response to changes in oil pressure on a discharge port side can be attenuated by a resonator that comprises only one chamber, whereby the volume occupied by the resonator can be minimized. An oil pump in an engine, for feeding oil from a suction port to a discharge port through rotation of a rotor fitted in a pump housing, includes: a discharge flow channel communicating with the discharge port; a resonator comprising an introduction channel formed in the discharge flow channel and a chamber communicating with the introduction channel; and a piston having a leading end face section that makes up an inner wall face of the chamber, and reciprocating in response to pulsation changes. The piston slides so as to reduce the volume of the chamber as the frequency distribution of the pulsations becomes higher.

Abstract translation: 本发明提供一种油泵谐振器，其中响应于排出口侧的油压变化而变化的脉动引起的各种振动可以由仅包括一个室的共振器衰减，由此谐振器占据的体积可以最小化 。 发动机中的油泵，用于通过旋转安装在泵壳体中的转子将油从吸入口输送到排出口，包括：与排出口连通的排出流路; 包括形成在所述排出流动通道中的引入通道和与所述引入通道连通的室的谐振器; 以及活塞，其具有构成所述室的内壁面的前端面部，并且响应于脉动变化而往复运动。 当脉动的频率分布变得更高时，活塞滑动以减小腔室的体积。

公开(公告)号：US20090060728A1

公开(公告)日：2009-03-05

申请号：US12201983

申请日：2008-08-29

Applicant: David J. Grimes ,  Keith J. Wardle

Inventor： David J. Grimes ,  Keith J. Wardle

IPC: F04D29/40

CPC classification number: F04C15/0049 ,  F01C5/04 ,  F04B7/06 ,  F04B11/0008 ,  F04C15/0069 ,  F04C18/18 ,  F04C2240/802 ,  F04C2270/18

Abstract: An exemplary pump includes a pump housing defining a pump cavity, a movable pumping member situated in the pump cavity, and at least one pressure-absorbing member located inside the pump housing. The housing also has an inlet and an outlet, and includes at least one interior non-wearing location that contacts liquid in the pump housing when the pump housing is primed with the liquid. The movable pumping member, when driven to move, urges flow of the liquid from the inlet through the pump cavity to the outlet. The at least one pressure-absorbing member is located inside the pump housing at the non-wearing location and contacts the liquid. The pressure-absorbing member has a compliant property to exhibit a volumetric compression when subjected to a pressure increase in the liquid contacting the pressure-absorbing member, the volumetric compression being sufficient to alleviate at least a portion of the pressure increase.

Abstract translation: 示例性泵包括限定泵腔的泵壳体，位于泵腔中的可移动泵送构件以及位于泵壳体内部的至少一个压力吸收构件。 壳体还具有入口和出口，并且当泵壳体被液体注入时，该入口和出口包括至少一个内部非易磨损位置，该位置接触泵壳体中的液体。 可移动泵送构件当被驱动移动时，促使液体从入口通过泵腔流到出口。 所述至少一个压力吸收构件位于所述泵壳体内的所述非磨损位置处并接触所述液体。 压力吸收构件具有柔软性，以在与压力吸收构件接触的液体中受到压力升高时呈现体积压缩，体积压缩足以减轻至少一部分压力增加。

公开(公告)号：US07488160B2

公开(公告)日：2009-02-10

申请号：US11206247

申请日：2005-08-17

Applicant: Martin Jordan ,  Guido Liesenfeld ,  Tim Lloyd ,  Michael Scholand ,  Keith Alan Jones ,  Jochen Gessat ,  Georg Brinkert

Inventor： Martin Jordan ,  Guido Liesenfeld ,  Tim Lloyd ,  Michael Scholand ,  Keith Alan Jones ,  Jochen Gessat ,  Georg Brinkert

IPC: F04B17/00 ,  F04B35/04

CPC classification number: F04C11/008 ,  B62D5/064 ,  F04C2/082 ,  F04C2/14 ,  F04C2/18 ,  F04C11/00 ,  F04C15/0049 ,  F04C2230/21 ,  F04C2230/60 ,  F04C2240/70

Abstract: A motor-pump unit, in particular for a power steering system of a motor vehicle, comprises a housing, a pump, and a drive motor. The pump is constructed as a prefabricated pump module. Both the pump module and the motor are received directly in the housing.

Abstract translation: 特别是用于机动车辆的动力转向系统的电动泵单元包括壳体，泵和驱动电动机。 泵被构造为预制泵模块。 泵模块和电机都直接接收在外壳中。

公开(公告)号：US20090010791A1

公开(公告)日：2009-01-08

申请号：US12216483

申请日：2008-07-07

Applicant: Kenichi Fujiki ,  Takatoshi Watanabe ,  Masashi Sadatomi

Inventor： Kenichi Fujiki ,  Takatoshi Watanabe ,  Masashi Sadatomi

IPC: F01C1/10

CPC classification number: F04C2/084 ,  F04C2/101 ,  F04C15/0049

Abstract: An internal gear pump which has a crescent disposed between an outer rotor and an inner rotor having a trochoidal tooth profile, and which reduces vibrations caused by pulsations generated when the fluid is discharged. The internal gear pump has an outer rotor having internal teeth formed therein, an inner rotor disposed on the inner peripheral side of the outer rotor and having formed therein external teeth that mesh with the internal teeth, and a crescent disposed in a clearance between the outer rotor and the inner rotor. Pitch spacings of the external teeth of the inner rotor are formed as non-equal spacings, and pitch spacings of the internal teeth of the outer rotor correspond to the pitch spacings of the external teeth of the inner rotor.

Abstract translation: 一种内齿轮泵，其具有设置在外转子和具有摆动齿形的内转子之间的新月形，并且减少当流体排出时产生的脉动引起的振动。 内齿轮泵具有形成有内齿的外转子，内转子，其设置在外转子的内周侧，并且在其中形成有与内齿啮合的外齿，以及设置在外齿之间的间隙中的新月形 转子和内转子。 内转子的外齿的间距形成为不等间隔，外转子的内齿的间距对应于内转子的外齿的间距。