公开(公告)号：US09777879B2

公开(公告)日：2017-10-03

申请号：US14803362

申请日：2015-07-20

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： Mahoro M. Fujita ,  Kenneth J. Dauer ,  Daniel F. Kabasin ,  Ravish S. Masti ,  Youssef Kazour

IPC: F16L55/04 ,  F02M37/00 ,  F02M55/04 ,  F04B39/00 ,  F04B53/00 ,  F16L55/053

CPC classification number: F16L55/04 ,  F02M37/0041 ,  F02M55/04 ,  F02M2200/31 ,  F02M2200/8053 ,  F04B39/0033 ,  F04B53/002 ,  F16L55/053

Abstract: A pulsation damper is disposed within a fluid volume defined by a fluid volume wall such that the pulsation damper is exposed to pressure pulsations within the fluid volume. The pulsation damper includes a pulsation damper first half having a first damper wall which is flexible in response to the pressure pulsations; a pulsation damper second half having a second damper wall which is flexible in response to the pressure pulsations; and a damping volume defined between the pulsation damper first half and the pulsation damper second half such that the damping volume is fluidly segregated from the fluid volume. One of the pulsation damper first half and the pulsation damper second half defines a spacing member which maintains separation between the fluid volume wall and one of the first damper wall and the second damper wall.

公开(公告)号：US09593656B2

公开(公告)日：2017-03-14

申请号：US14104120

申请日：2013-12-12

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： Mahoro M. Fujita

IPC: F02M61/16 ,  F02M51/06 ,  F02M61/06 ,  F02M65/00

CPC classification number: F02M65/001 ,  F02M51/0678 ,  F02M61/168 ,  F02M2200/505 ,  F02M2200/8061 ,  F02M2200/8092 ,  Y10T29/49314

Abstract: A fuel injector includes a valve member for selectively preventing and permitting flow of fuel through a valve seat by selectively engaging and disengaging the valve seat, an actuator for selectively applying a force to the valve member in order to unseat the valve member from the valve seat, and a return spring which biases the valve member into contact with the valve seat when the actuator is not applying the force to the valve member. A calibration tube is positioned within the fuel tube and holds the return spring in compression so as to set a force on the return spring to achieve a desired dynamic flow of fuel through the fuel injector. The calibration tube includes at least one protrusion extending outward therefrom such that the protrusion engages the fuel tube, thereby creating a spring fit between the calibration tube and the fuel tube.

Abstract translation: 燃料喷射器包括阀构件，用于通过选择性地接合和分离阀座来选择性地防止和允许燃料流过阀座;致动器，用于选择性地向阀构件施加力以使阀构件从阀座 以及当致动器不向阀构件施加力时偏压阀构件与阀座接触的复位弹簧。 校准管定位在燃料管内并且将复位弹簧保持在压缩状态，以便在复位弹簧上施加力以实现燃料通过燃料喷射器所需的动态流动。 校准管包括从其向外延伸的至少一个突起，使得突出部接合燃料管，从而在校准管和燃料管之间形成弹簧配合。