公开(公告)号：US20170298887A1

公开(公告)日：2017-10-19

申请号：US15097818

申请日：2016-04-13

Applicant: Cummins Inc.

Inventor： Lester L. Peters ,  Bradlee J. Stroia ,  Anthony Shaull ,  Rodney J. Hemmerlein ,  Richard Davis Thomas

IPC: F02M63/00 ,  F02M55/02

Abstract: Fueling systems and methods are disclosed. Various fueling systems may comprise a single fuel pump configured to supply fuel to a first fuel rail at a first fuel pressure along a first fuel circuit and configured to supply fuel to a second fuel rail at a second fuel pressure along a second fuel circuit, wherein the first fuel rail and second fuel rail are arranged in parallel, and the first fuel circuit is independent of the second fuel circuit.

公开(公告)号：US20170045023A1

公开(公告)日：2017-02-16

申请号：US15235189

申请日：2016-08-12

Applicant: Cummins Inc.

Inventor： Steven J. Kolhouse ,  Raymond V. Primus ,  Lester L. Peters ,  David L. Buchanan

IPC: F02M53/04 ,  F02M37/00 ,  F02D41/36 ,  F02M61/18

CPC classification number: F02M53/043 ,  F02D41/042 ,  F02D41/08 ,  F02D41/3854 ,  F02D2041/3881 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02M37/0052 ,  F02M61/18

Abstract: A fuel injector is provided comprising an outer housing, a nozzle housing disposed within the outer housing, a flow path between the outer housing and the nozzle housing, the flow path being coupled to a low pressure fuel source, and a circumferential gap in flow communication with the flow path and extending about a tip of the fuel injector between an outer surface of the nozzle housing and an inner surface of a combustion shield adjacent the injector tip. The circumferential gap is in flow communication with a drain gap between the outer housing and a bore for receiving the fuel injector, the drain gap routing the low pressure fuel away from the injector tip.

Abstract translation: 提供一种燃料喷射器，其包括外部壳体，设置在外部壳体内的喷嘴壳体，外部壳体和喷嘴壳体之间的流动路径，该流动路径联接到低压燃料源，以及流动连通的周向间隙 具有流动路径并且在喷嘴壳体的外表面和与喷射器尖端相邻的燃烧屏蔽的内表面之间围绕燃料喷射器的尖端延伸。 圆周间隙与外壳和用于接收燃料喷射器的孔之间的排水间隙流动连通，排出间隙使低压燃料远离喷射器尖端。