Coaxial flow through fuel rail with a damper for a recirculating

Details Coaxial flow through fuel rail with a damper for a recirculating Coaxial flow through fuel rail with a damper for a recirculating

1999-10-01

2000-11-21

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123456, 123468, F02M 4100

Patent

active

061487988

ABSTRACT:
A fuel rail has a high pressure inlet and a low pressure outlet. The high pressure inlet feeds pressurized fuel to a plurality of injectors along the fuel rail. A fuel return line, which is connected with the low pressure outlet, is positioned substantially centrally of and coaxial with the fuel rail. The fuel return line is non-circular in configuration having a width to height ratio greater than one. The configuration of the return fuel line and the flexibility of the walls thereof provide a damper that reduces the pressure pulsations in the high pressure fuel.

REFERENCES:
patent: 4474160 (1984-10-01), Gartner
patent: 4660524 (1987-04-01), Bertsch et al.
patent: 5233963 (1993-08-01), Gregorius et al.
patent: 5333587 (1994-08-01), DiSilvestro et al.
patent: 5575262 (1996-11-01), Rohde
patent: 5617827 (1997-04-01), Eshleman et al.
patent: 5752486 (1998-05-01), Nakashima et al.
patent: 5845621 (1998-12-01), Robinson et al.
patent: 5896843 (1999-04-01), Lorraine

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