公开(公告)号：US20220082071A1

公开(公告)日：2022-03-17

申请号：US17405166

申请日：2021-08-18

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Timothy D. SPEGAR ,  Joseph G. SPAKOWSKI

IPC: F02M59/20 ,  F02M55/02 ,  F02M37/00

Abstract: A fuel system includes a low-pressure fuel delivery unit and a high-pressure fuel delivery unit which has a low-pressure region and a high-pressure region such that the low-pressure region supplies fuel to the high-pressure region which supplies the fuel to a plurality of high-pressure fuel injectors. A low-pressure fuel rail supplies fuel to low-pressure fuel injectors. A low-pressure fuel injector line is connected at a first end directly to the high-pressure fuel delivery unit and receives fuel from the low-pressure region and is connected at a second end directly to the low-pressure fuel rail, thereby providing fluid communication from the low-pressure region to the low-pressure fuel rail. A device is located between the low-pressure region and the low-pressure fuel rail and reduces fuel pressure pulsations.