公开(公告)号：US20170248111A1

公开(公告)日：2017-08-31

申请号：US15322811

申请日：2015-06-15

Applicant: Delphi International Operations Luxembourg S.A.R.L

Inventor： Michel Marechal ,  Frederic Sauvage ,  Alexis Menand ,  Alain Amand ,  Nicolas Cezon ,  Peter Voigt

IPC: F02M63/02 ,  F16K31/40 ,  F16K15/18

CPC classification number: F02M63/025 ,  F02M63/0052 ,  F02M2200/302 ,  F02M2200/304 ,  F02M2200/306 ,  F02M2200/315 ,  F16K15/183 ,  F16K15/185 ,  F16K31/402

Abstract: A solenoid valve which regulates the pressure in a pressurized fuel injection system includes a body containing a needle that is pressed by an electromagnet including a coil and a magnetic core. The core has a cavity that is in fluid communication via an internal channel with a counterbore in the body into which the needle protrudes and into which fuel flows during use. The core also has a restriction which restricts the fluid communication and which attenuates pressure waves propagating in the fuel to prevent the waves from moving the core.