公开(公告)号：US10006429B2

公开(公告)日：2018-06-26

申请号：US15086968

申请日：2016-03-31

Applicant: GM Global Technology Operations LLC

Inventor： Paul A. Battiston ,  Robert D. Straub

IPC: F02M51/06 ,  F02M51/08 ,  F02M63/00 ,  F02M61/08

CPC classification number: F02M63/0056 ,  F02M51/06 ,  F02M61/08 ,  F02M63/0029 ,  F02M63/0035 ,  F02M2200/705 ,  F02M2200/706

Abstract: A fuel injector includes a housing defining a longitudinal bore having a proximal end and a distal end, a high pressure fuel duct in communication with the longitudinal bore and a valve seat including a valve seat surface and an aperture at the distal end of the longitudinal bore. A poppet valve is disposed in the longitudinal bore and includes a valve head that is engageable with the valve seat surface. An actuator device is disposed at the proximal end of the longitudinal bore and a hydraulic coupler is disposed between the actuator and the poppet valve within the longitudinal bore. The hydraulic coupler defines a chamber that receives low pressure fuel for providing a hydraulic lash adjuster between the actuator and the poppet valve.