公开(公告)号：US09670890B2

公开(公告)日：2017-06-06

申请号：US14371260

申请日：2013-01-14

Applicant: DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.a.r.l.

Inventor： Andrew J. Limmer ,  Christopher S. Hardy ,  Joseph M. Luck

IPC: F02M69/04 ,  F02M61/10 ,  F02M63/00 ,  F02M47/02

CPC classification number: F02M69/048 ,  F02M47/027 ,  F02M63/0035 ,  F02M63/0047 ,  F02M2200/28

Abstract: A fuel injector comprises a supply means for high pressure fuel, an injection nozzle including a valve needle engageable with a valve needle seating to control fuel delivery from the injector, a first filling flow path providing flow from the supply means into a control chamber, and a control valve for controlling fuel pressure within the control chamber. The control valve comprises a control valve member slidable within a guide bore of a valve housing. The injector further comprises a drain flow path including a drain restriction and permitting flow from the control chamber to a second valve chamber when the control valve member is in a second state, and a second filling flow path permitting flow from a first valve chamber into the control chamber when the control valve member is in a first state, wherein the second filling flow path bypasses the drain restriction.

公开(公告)号：US20150000637A1

公开(公告)日：2015-01-01

申请号：US14371260

申请日：2013-01-14

Applicant: DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.a.r.l

Inventor： Andrew J. Limmer ,  Christopher S. Hardy ,  Joseph M. Luck

IPC: F02M69/04

CPC classification number: F02M69/048 ,  F02M47/027 ,  F02M63/0035 ,  F02M63/0047 ,  F02M2200/28

Abstract: A fuel injector comprises a supply means for high pressure fuel, an injection nozzle including a valve needle engageable with a valve needle seating to control fuel delivery from the injector, a first filling flow path providing flow from the supply means into a control chamber, and a control valve for controlling fuel pressure within the control chamber. The control valve comprises a control valve member slidable within a guide bore of a valve housing. The injector further comprises a drain flow path including a drain restriction and permitting flow from the control chamber to a second valve chamber when the control valve member is in a second state, and a second filling flow path permitting flow from a first valve chamber into the control chamber when the control valve member is in a first state, wherein the second filling flow path bypasses the drain restriction.

Abstract translation: 燃料喷射器包括用于高压燃料的供给装置，喷射喷嘴，其包括可与阀针座接合的阀针，以控制从喷射器输送燃料的输送;提供从供给装置流入控制室的第一填充流路;以及 用于控制所述控制室内的燃料压力的控制阀。 控制阀包括可在阀壳体的导向孔内滑动的控制阀构件。 喷射器还包括排水流路，其包括排水限制并且当控制阀构件处于第二状态时允许从控制室流向第二阀室，以及允许从第一阀室流入第二阀室的第二填充流动路径 控制室，当所述控制阀构件处于第一状态时，其中所述第二填充流动路径绕过所述排水限制。