公开(公告)号：US5733111A

公开(公告)日：1998-03-31

申请号：US753815

申请日：1996-12-02

Applicant: Dequan Yu ,  Gerard Cronin ,  Ronald Engel

Inventor： Dequan Yu ,  Gerard Cronin ,  Ronald Engel

IPC: F04C2/08 ,  F04C15/00 ,  F04C2/10

CPC classification number: F04C2/088 ,  F04C15/0049

Abstract: A gerotor pump includes a pair of relief ports superimposed on and directly communicating with the pump's inlet and outlet channels, respectively. The relief ports simultaneously communicate with an open mesh pumping chamber so as to provide an intermittent controlled leak from the open mesh pumping chamber. Upon rotation of the gear members of the gerotor pump when the volume in the open mesh pumping chamber is increasing to a maximum volume, fluid in the open mesh pumping chamber vents into the relief port superimposed on and communicating with the outlet channel while continuing to communicate with the relief port superimposed on and communicating with the inlet channel. Upon further rotation of the gear member when the volume in the open mesh pumping is decreasing, fluid in the open mesh pumping chamber is prevented from venting into the relief port superimposed and communicating with the inlet channel while continuing to communicate with the relief port superimposed on and communicating with the outlet channel. Thus, fluid over-pressure in an excessive fluid leakage from the open mesh pumping chamber is limited.

Abstract translation: 齿轮泵包括分别叠加在泵的入口和出口通道上并与泵的入口和出口通道直接连通的一对卸压口。 排放口同时与开放的网状抽吸室连通，从而提供来自开式网状抽吸室的间歇控制的泄漏。 当打开的网状泵送室中的体积增加到最大体积时，当旋转泵的齿轮构件旋转时，开式网状抽吸室中的流体排出到叠加在出口通道上并与出口通道连通的同时继续通信 其中卸载口叠加在入口通道上并与入口通道连通。 当打开的网状抽吸中的体积减小时，齿轮构件进一步旋转时，防止打开的网状抽吸室中的流体排放到叠加并与入口通道连通的排放口中，同时与叠加在其上的排放口连通 并与出口通道进行通信。 因此，来自开式网状泵送室的过量流体泄漏的流体过压受到限制。

公开(公告)号：US5551835A

公开(公告)日：1996-09-03

申请号：US566210

申请日：1995-12-01

Applicant: Dequan Yu ,  Harold L. Castle

Inventor： Dequan Yu ,  Harold L. Castle

IPC: F04D5/00 ,  F04D29/66 ,  F04D9/00

CPC classification number: F04D29/669 ,  F04D5/002 ,  F04D5/007 ,  F05B2250/503

Abstract: An automotive fuel pump housing for a fuel pump encases a rotary pumping element. The housing has two portions, a cover and a bottom. The cover has an inlet port which defines a directional control surface having an inclined frustoconical portion and an inclined planar portion conjoined therewith and laterally extending therefrom such that fuel flowing over the inclined frustoconical portion accelerates primarily radially and combines with fuel flowing primarily axially over the inclined planar portion, whereby the combined flow is smoothly directed to an annular cover channel. The bottom has an annular bottom channel which, when the cover and bottom are assembled, the annular cover channel and annular bottom channel cooperate to form the inlet channel. A transition section is located at the beginning of the inlet channel and extends along a portion of the arc of the inlet channel. The transition section decreases in depth from a maximum depth at the beginning thereof to the depth of the remaining portion of the inlet channel. The annular cover channel has a two-step transition section depth whereas the annular bottom channel has a single-step transition section depth. In addition, the radius of the base circle of the inlet channel outside of the transition section is not less than the radius of the rotary pumping element near the vane grooves.

Abstract translation: 用于燃料泵的汽车燃料泵壳体包围旋转泵送元件。 外壳有两个部分，一个盖子和一个底部。 盖具有入口端口，该入口限定了具有倾斜的截头圆锥形部分的倾斜平面部分和与其结合并从其侧向延伸的倾斜平面部分的方向控制表面，使得流过倾斜截头圆锥形部分的燃料主要径向地加速，并与主要在轴向上倾斜在倾斜 平面部分，由此组合的流动平滑地引导到环形覆盖通道。 底部具有环形底部通道，当盖和底部组装时，环形盖通道和环形底部通道配合形成入口通道。 过渡部分位于入口通道的开始处并且沿着入口通道的弧的一部分延伸。 过渡部分从其开始处的最大深度到入口通道的剩余部分的深度的深度减小。 环形盖通道具有两级过渡段深度，而环形底部通道具有单步过渡段深度。 此外，过渡部分外侧的入口通道的基圆的半径不小于叶片槽附近的旋转泵送元件的半径。

公开(公告)号：US5549446A

公开(公告)日：1996-08-27

申请号：US521488

申请日：1995-08-30

Applicant: Robert D. Gaston ,  DeQuan Yu

Inventor： Robert D. Gaston ,  DeQuan Yu

IPC: F04D5/00 ,  F04D29/18 ,  F04D29/66

CPC classification number: F04D29/669 ,  F04D29/188 ,  F04D5/002

Abstract: A fuel pump for supplying diesel fuel to an engine includes a pump housing, a motor mounted within the housing, a shaft extending from the motor, an impeller slidably attached to the shaft which has a prime number of vanes spaced unevenly about its circumference, a chamber body, and a chamber cover with a bleed orifice. The chamber body and cover form a chamber for the impeller and are held together by the housing. The chamber body and cover have pump channels of constant depth and are made of phenolic with fiberglass fill. The impeller is made of phenolic with fiberglass fill and granular fill.

Abstract translation: 用于向发动机供应柴油的燃料泵包括泵壳体，安装在壳体内的电动机，从电动机延伸的轴;可滑动地附接到轴的叶轮，其具有围绕其圆周不均匀间隔的数量的叶片， 腔体，以及具有放气孔的腔室盖。 腔体和盖形成用于叶轮的腔室并且由壳体保持在一起。 腔室主体和盖板具有恒定深度的泵通道，并且由具有玻璃纤维填充物的酚醛树脂制成。 叶轮由酚醛树脂制成，玻璃纤维填充和颗粒填充。

公开(公告)号：US5375975A

公开(公告)日：1994-12-27

申请号：US173228

申请日：1993-12-27

Applicant: Dequan Yu ,  Robert D. Gaston

Inventor： Dequan Yu ,  Robert D. Gaston

IPC: F02M37/08 ,  F02M37/20 ,  F04D3/02 ,  F04D29/42 ,  F04D29/40

CPC classification number: F04D29/4273 ,  F04D3/02

Abstract: A fuel pump has a motor mounted within a housing with a shaft extending therefrom to which a helically shaped impeller is fitted for pumping fuel from a fuel tank to an automotive engine. An end section of the housing has an inlet leading from the fuel tank to a pre-swirl fuel channel or trough located at the radially outermost perimeter of an impeller mating face on the end section. The trough has an inlet ramp which routes fuel to an inclined section with an axial grade to force the fuel to flow in the direction of impeller rotation. A trough termination ramp between the inclined section and the inlet ramps fuel toward the impeller at a steeper grade than the inclined section such that the fuel trough becomes flush with the impeller mating face. Fuel can thus be picked-up by the impeller throughout at least 340.degree. of rotation.

Abstract translation: 燃料泵具有安装在壳体内的电动机，其中从其延伸的轴安装螺旋形叶轮以将燃料从燃料箱泵送到汽车发动机。 壳体的端部具有从燃料箱引导到位于端部上的叶轮配合面的径向最外周边处的预旋燃料通道或槽的入口。 槽具有入口斜坡，其将燃料路向具有轴向等级的倾斜部分，以迫使燃料沿叶轮旋转方向流动。 倾斜部分和入口坡道之间的槽终止斜坡以比倾斜部分更陡的级别向叶轮燃料燃料，使得燃料槽与叶轮配合面平齐。 因此，燃油可以在至少340°的旋转中由叶轮拾取。

公开(公告)号：US5330319A

公开(公告)日：1994-07-19

申请号：US115079

申请日：1993-09-02

Applicant: Dequan Yu ,  Henry W. Brockner

Inventor： Dequan Yu ,  Henry W. Brockner

IPC: F02M37/08 ,  F02M37/20 ,  F04D5/00 ,  F04D9/00

CPC classification number: F04D5/002 ,  F04D9/003 ,  F05B2260/96

Abstract: A fuel pump of the regenerative turbine type has an impeller enclosed between a pump cover and a pump bottom, with a pumping chamber formed between the cover and bottom along the periphery of the impeller. A vapor purge orifice, having a chamfered inlet, a plurality of different diameter sections, and a chamfered outlet, leads to a vapor purge channel which runs radially along an outside portion of the pump cover. The purge channel has baffles through which the fuel vapor flows before exiting through at least one outlet into the fuel tank. Fuel vapor is more effectively removed from the pumping chamber by the smoother sections and chamfers of the purge orifice and its energy is effectively dissipated by the purge channel baffles, thus reducing pump noise and increasing pump efficiency.

Abstract translation: 再生涡轮机类型的燃料泵具有封闭在泵盖和泵底部之间的叶轮，其中沿着叶轮的周边形成在盖和底部之间的泵送室。 具有倒角入口，多个不同直径部分和倒角出口的蒸汽吹扫孔导向沿泵壳外部径向延伸的蒸气吹扫通道。 净化通道具有挡板，燃料蒸汽在通过至少一个出口进入燃料箱之前流过该挡板。 通过清洗孔的更平滑的部分和倒角更有效地从泵送室除去燃料蒸汽，并且其能量被净化通道挡板有效地消散，从而降低泵噪声并提高泵的效率。

公开(公告)号：US5284417A

公开(公告)日：1994-02-08

申请号：US72018

申请日：1993-06-07

Applicant: Dequan Yu

Inventor： Dequan Yu

IPC: F02M37/10 ,  F04D5/00 ,  F04D7/02 ,  F04D9/00

CPC classification number: F04D9/002 ,  F04D5/002 ,  F04D5/007 ,  F05B2250/503 ,  F05B2250/71

Abstract: A pump for supplying gasoline to the fuel injectors of an automotive engine includes a pump case, and upper and lower pump housings mounted within the case and forming an annular pumping channel. The pumping channel includes a vapor channel extending along an axially enlarged section of the bottom portion of the pumping channel from the pump's inlet to a purge orifice which extends axially through the lower pump housing from a radially inward portion of the pumping channel.

Abstract translation: 用于向汽车发动机的燃料喷射器供应汽油的泵包括泵壳体，以及安装在壳体内并形成环形泵送通道的上下泵壳体。 泵送通道包括沿泵送通道的底部的轴向扩大部分从泵的入口延伸到吹扫孔的蒸气通道，其从泵送通道的径向向内部分轴向延伸穿过下泵壳体。