公开(公告)号：US20150075498A1

公开(公告)日：2015-03-19

申请号：US14028595

申请日：2013-09-17

Applicant: Caterpillar Inc.

Inventor： John W. Unes ,  Eric Krause ,  Steven R. Meinhart ,  David C. Mack

IPC: F02M39/02

CPC classification number: F02M39/02

Abstract: A fuel pump is disclosed. The fuel pump includes a housing. Further, the fuel pump includes a rotatable pump shaft disposed within the housing. One end of the rotatable pump shaft is attachable to a gear. The housing also includes a retainer disposed within the housing and located about the pump shaft. The retainer includes a first rim and a second rim that are spaced apart from each other. The retainer also includes a side wall extending between the first and the second rims. Further, the side wall of the retainer defines a first volume and a second volume within the housing. The side wall of the retainer has a plurality of apertures configured to allow a fluid flow from the first volume to the second volume while retaining particulate contaminants larger than a size of the apertures within the first volume.

Abstract translation: 公开了一种燃油泵。 燃料泵包括壳体。 此外，燃料泵包括设置在壳体内的可旋转泵轴。 可旋转泵轴的一端可连接到齿轮上。 壳体还包括设置在壳体内并围绕泵轴定位的保持器。 保持器包括彼此间隔开的第一边缘和第二边缘。 保持器还包括在第一和第二边缘之间延伸的侧壁。 此外，保持器的侧壁限定了壳体内的第一容积和第二容积。 保持器的侧壁具有多个孔，其构造成允许流体从第一体积流到第二体积，同时保持大于第一体积内的孔的尺寸的颗粒污染物。

公开(公告)号：US09181909B2

公开(公告)日：2015-11-10

申请号：US14028595

申请日：2013-09-17

Applicant: Caterpillar Inc.

Inventor： John W. Unes ,  Eric Krause ,  Steven R. Meinhart ,  David C. Mack

IPC: F02M37/04 ,  F02M39/02

CPC classification number: F02M39/02

Abstract: A fuel pump is disclosed. The fuel pump includes a housing. Further, the fuel pump includes a rotatable pump shaft disposed within the housing. One end of the rotatable pump shaft is attachable to a gear. The housing also includes a retainer disposed within the housing and located about the pump shaft. The retainer includes a first rim and a second rim that are spaced apart from each other. The retainer also includes a side wall extending between the first and the second rims. Further, the side wall of the retainer defines a first volume and a second volume within the housing. The side wall of the retainer has a plurality of apertures configured to allow a fluid flow from the first volume to the second volume while retaining particulate contaminants larger than a size of the apertures within the first volume.

Abstract translation: 公开了一种燃油泵。 燃料泵包括壳体。 此外，燃料泵包括设置在壳体内的可旋转泵轴。 可旋转泵轴的一端可连接到齿轮上。 壳体还包括设置在壳体内并围绕泵轴定位的保持器。 保持器包括彼此间隔开的第一边缘和第二边缘。 保持器还包括在第一和第二边缘之间延伸的侧壁。 此外，保持器的侧壁限定了壳体内的第一容积和第二容积。 保持器的侧壁具有多个孔，其构造成允许流体从第一体积流到第二体积，同时保持大于第一体积内的孔的尺寸的颗粒污染物。