公开(公告)号：US20170167450A1

公开(公告)日：2017-06-15

申请号：US14963757

申请日：2015-12-09

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： JOSEPH G. SPAKOWSKI ,  TIMOTHY D. SPEGAR

IPC: F02M31/20 ,  F02M37/00 ,  F02M55/02 ,  F02M63/02 ,  F02M37/04 ,  F02M37/08

CPC classification number: F02M31/20 ,  F02M37/0047 ,  F02M37/043 ,  F02M37/08 ,  F02M55/025 ,  F02M55/04 ,  F02M63/0265 ,  F02M63/0285 ,  F02M63/029 ,  Y02T10/126

Abstract: A fuel system includes a low-pressure fuel delivery unit; a high-pressure fuel delivery unit which has a drive region and a delivery region such that the drive region supplies fuel to the delivery region and such that the delivery region supplies fuel to a high-pressure fuel injector; a low-pressure fuel supply passage which supplies fuel from the low-pressure fuel delivery unit to the drive region of the high-pressure fuel delivery unit; a cooling passage which receives fuel from the drive region of the high-pressure fuel delivery unit; and a low-pressure fuel injector supply passage which is in direct fluid communication with the low-pressure fuel supply passage and which supplies fuel to a low-pressure fuel injector from the cooling passage.