Regenerative fuel pump flow chamber

    公开(公告)号:US06527505B2

    公开(公告)日:2003-03-04

    申请号:US09734986

    申请日:2000-12-11

    IPC分类号: F04D500

    摘要: A fuel pump for pumping fuel from an inlet port to an outlet port. In one embodiment, a housing made up of a body piece and a cover piece encloses an impeller. The impeller has a vaned periphery and an outer ring connected by spokes. An inlet hole is defined within the cover piece for fuel to enter the pump. An outlet hole is defined within the body piece for fuel to exit the pump into an internal chamber. A first main semicircular shaped channel is defined circumferentially into the cover piece and extends in an annular fashion around the cover piece. The body piece has a second main semicircular channel as well as at least one annular groove. In the preferred embodiment of the invention, there are two annular grooves, one connected directly to the second semicircular channel, and one around the peripheral edge of the body piece at the point where it contacts the cover piece.

    Regenerative fuel pump with leakage prevent grooves
    3.
    发明授权
    Regenerative fuel pump with leakage prevent grooves 有权
    再生燃油泵带防漏槽

    公开(公告)号:US06669437B2

    公开(公告)日:2003-12-30

    申请号:US09970604

    申请日:2001-10-04

    IPC分类号: F04D500

    摘要: An electric-operated fuel pump has a vaned impeller that is disposed within a pumping chamber for rotation about an axis. The pumping chamber has a main channel extending arcuately about the axis to one axial side of the impeller. The main channel has a radially outer margin that opens along at least a portion of the channel's arcuate extent to an adjoining contaminant collection channel which extends arcuately about the axis and which is effective, as the pumping element rotates, to collect certain fluid-entrained particulates expelled from the main channel and to convey such collected particulates toward the pump outlet. A sump is disposed at the end of the contaminant collection channel proximate the outlet. Several grooves in the seal surface between inlet and outlet, which is called “strip area.” The grooves are extended radially outward, the angles match the impeller vane angles and these grooves prevent leakage of the contaminations.

    摘要翻译: 电动燃料泵具有叶轮,叶轮设置在泵送室内,用于围绕轴线旋转。 泵送室具有主轴线,该主通道围绕轴线延伸至叶轮的一个轴向侧。 主通道具有径向外边缘,其沿着通道的弓形延伸部的至少一部分开口,邻近的污染物收集通道围绕轴线弧形延伸,并且当泵送元件旋转时其有效,以收集某些流体夹带的颗粒 从主通道排出并将这种收集的颗粒输送到泵出口。 在靠近出口的污染物收集通道的末端设置有贮槽。 入口和出口之间的密封表面有几个槽,称为“带区”。 凹槽径向向外延伸,角度与叶轮叶片角度相匹配,这些凹槽可防止污染物泄漏。

    Automotive fuel pump with pressure balanced impeller
    4.
    发明授权
    Automotive fuel pump with pressure balanced impeller 有权
    具有压力平衡叶轮的汽车燃油泵

    公开(公告)号:US07217084B2

    公开(公告)日:2007-05-15

    申请号:US11305901

    申请日:2005-12-19

    IPC分类号: F01D1/12

    CPC分类号: F04D5/002

    摘要: A rotary fuel pump employs pressure balancing features on the non-vaned side of the impeller to provide localized application of fluid forces so that the impeller is more precisely balanced within the pumping chamber. A generally disc-shaped impeller body has an impeller with a body-side surface and a cover-side surface. The cover-side surface defines an impeller flow channel extending circumferentially around the impeller. The impeller includes a plurality of vanes positioned at least partially within the impeller flow channel. The body-side surface has a plurality of discontinuous undercut regions each coaxially aligned with at least a portion of the impeller flow channel. The impeller has a plurality of apertures wherein each aperture connects the impeller flow channel with a respective undercut region, whereby pressure forces against the impeller from the fuel are substantially balanced in the axial direction.

    摘要翻译: 旋转燃料泵在叶轮的非叶片侧采用压力平衡特征,以提供流体力的局部应用,使得叶轮在泵送室内更精确地平衡。 大致圆盘状的叶轮本体具有带有主体侧表面和盖侧表面的叶轮。 盖侧表面限定了绕叶轮周向延伸的叶轮流动通道。 叶轮包括至少部分地位于叶轮流动通道内的多个叶片。 身体侧表面具有多个不连续的底切区域,其各自与叶轮流动通道的至少一部分同轴对准。 叶轮具有多个孔,其中每个孔将叶轮流动通道与相应的底切区域连接,由此来自燃料的来自叶轮的压力在轴向方向上基本平衡。

    Low deviation pressure relief valve for fuel pumps
    5.
    发明授权
    Low deviation pressure relief valve for fuel pumps 有权
    燃油泵低偏压减压阀

    公开(公告)号:US06840270B2

    公开(公告)日:2005-01-11

    申请号:US10267479

    申请日:2002-10-09

    IPC分类号: F16K15/04 F16K27/02

    摘要: A low deviation pressure relief valve for a fuel pump consisting of a housing having an elongated bore having a continuous wall, an axis, shoulders arranged on the wall so as to extend toward the axis. A ball in the housing has a diameter at least less than the diameter of the bore and a ball retainer located in the bore upstream from the shoulders forms a ball seat by pre-coining process. The ball is smaller than the retainer seat in diameter to ensure an edge seal with the ball. A spring coaxial with the axis located down stream from the ball retainer and supported on the shoulders, and the ball is located between the spring and the ball seat wherein low flow restriction is created and reduced pressure variation is created as fluid flows past the ball and less buckling in the spring is created by guide ribs.

    摘要翻译: 一种用于燃料泵的低偏压减压阀,其由具有细长孔的壳体组成,所述细长孔具有连续壁,轴线,肩部布置在所述壁上以朝向所述轴线延伸。 壳体中的球具有至少小于孔径的直径,并且位于肩部上方的孔中的球保持器通过预压制过程形成球座。 球的直径小于保持座,以确保与球的边缘密封。 一个弹簧与轴线同轴,该轴线位于从球保持器的下游并支撑在肩部上,并且球位于弹簧和球座之间,其中产生低流量限制,并且随着流体流过球而产生减小的压力变化, 通过引导肋产生较少的弹簧屈曲。

    Jet pump assembly
    6.
    发明授权
    Jet pump assembly 有权
    喷气泵总成

    公开(公告)号:US08459960B2

    公开(公告)日:2013-06-11

    申请号:US12700038

    申请日:2010-02-04

    IPC分类号: F04B23/04

    摘要: A jet pump assembly includes a fuel supply conduit, a first jet pump integrally formed as a single piece with the fuel supply conduit and in fluid communication with the fuel supply conduit, a second jet pump integrally formed as a single piece with the fuel supply conduit and in fluid communication with the fuel supply conduit, and an inlet conduit integrally formed as a single piece with the second jet pump.

    摘要翻译: 喷射泵组件包括燃料供应管道,与燃料供应导管整体成形为一体并与燃料供应管道流体连通的第一喷射泵,与燃料供应管道一体形成为单件的第二喷射泵 并且与燃料供应管道流体连通,以及与第二喷射泵一体形成为一体的入口导管。

    Method and apparatus for controlling a processing system
    7.
    发明授权
    Method and apparatus for controlling a processing system 有权
    用于控制处理系统的方法和装置

    公开(公告)号:US09080576B2

    公开(公告)日:2015-07-14

    申请号:US13359899

    申请日:2012-01-27

    摘要: Methods and apparatus for controlling a processing system are provided herein. In some embodiments, a method of controlling a processing system may include operating a vacuum pump coupled to a process chamber at a first baseline pump idle speed selected to maintain the process chamber at a pressure equal to a first baseline pump idle pressure; monitoring the pressure in the process chamber while operating the vacuum pump at the first baseline pump idle speed; and determining whether the first baseline pump idle pressure can be maintained in the process chamber when the vacuum pump is operating at the first baseline pump idle speed.

    摘要翻译: 本文提供了用于控制处理系统的方法和装置。 在一些实施例中,一种控制处理系统的方法可以包括以选择为将处理室维持在等于第一基准泵空闲压力的压力的第一基准泵空转速度下操作联接到处理室的真空泵; 在第一基准泵怠速下操作真空泵时监测处理室中的压力; 以及当所述真空泵以所述第一基准泵怠速运转时,确定所述处理室中是否能够维持所述第一基准泵怠速压力。

    JET PUMP ASSEMBLY
    8.
    发明申请
    JET PUMP ASSEMBLY 有权
    喷射泵组件

    公开(公告)号:US20100202898A1

    公开(公告)日:2010-08-12

    申请号:US12700038

    申请日:2010-02-04

    IPC分类号: F04F5/00

    摘要: A jet pump assembly includes a fuel supply conduit, a first jet pump integrally formed as a single piece with the fuel supply conduit and in fluid communication with the fuel supply conduit, a second jet pump integrally formed as a single piece with the fuel supply conduit and in fluid communication with the fuel supply conduit, and an inlet conduit integrally formed as a single piece with the second jet pump.

    摘要翻译: 喷射泵组件包括燃料供应管道,与燃料供应导管整体成形为一体并与燃料供应管道流体连通的第一喷射泵,与燃料供应管道一体形成为单件的第二喷射泵 并且与燃料供应管道流体连通,以及与第二喷射泵一体形成为一体的入口导管。