公开(公告)号：US11946438B2

公开(公告)日：2024-04-02

申请号：US17206723

申请日：2021-03-19

Applicant: Eaton Intelligent Power Limited

Inventor： Harshad Pawale ,  Pradeep Biradar ,  Abhijit Borawake

IPC: F16K17/04 ,  B64D37/32 ,  F02M37/00 ,  F16K17/10 ,  F16K17/196 ,  F16K17/30 ,  F16K31/126 ,  F16K41/10

CPC classification number: F02M37/0029 ,  B64D37/32 ,  F16K17/048 ,  F16K17/10 ,  F16K17/196 ,  F16K17/30 ,  F16K31/1262 ,  F16K41/10

Abstract: A pilot valve assembly, for operating a pressure reducing valve disposed within a fuel tank, can include a housing including a first chamber and a second chamber, a first port in fluid communication with the first and second chambers, the first port being configured to receive an atmospheric pressure, a second port in fluid communication with the first and second chambers, the second port being configured to receive a fuel tank pressure, a first pilot valve arranged within the first chamber and configured to open only when a predetermined positive pressure differential exists between the first and second ports, and a second pilot valve arranged within the second chamber and configured to open only when a predetermined negative pressure differential exists between the first and second ports.