公开(公告)号：US06840270B2

公开(公告)日：2005-01-11

申请号：US10267479

申请日：2002-10-09

Applicant: DeQuan Yu ,  Stephen T. Kempfer ,  Christopher C. Lobombarbe ,  David J. Rink ,  David M. Dokas ,  Paul E. Fisher ,  Jeff Moll

Inventor： DeQuan Yu ,  Stephen T. Kempfer ,  Christopher C. Lobombarbe ,  David J. Rink ,  David M. Dokas ,  Paul E. Fisher ,  Jeff Moll

IPC: F16K15/04 ,  F16K27/02

CPC classification number: F16K15/044 ,  F16K27/0245 ,  Y10T137/7914 ,  Y10T137/7925 ,  Y10T137/7927 ,  Y10T137/7937

Abstract: 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.

Abstract translation: 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。

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。