Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Reexamination Certificate
2007-04-10
2007-04-10
Moulis, Thomas (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
C123S1960AB, C210S136000
Reexamination Certificate
active
10905165
ABSTRACT:
Method and arrangement for providing a fuel system for an internal combustion engine (10) that includes a fuel tank (13), a fuel pump (12) and a fuel filter (19) located in a flow duct (14) between the fuel pump and the fuel consumers (11) of the engine. The flow duct (14) includes a valve chamber (20), located downstream of the fuel filter, and having a valve cone (24) movably arranged in the chamber between an upper valve seat (20b) and a lower valve seat (27). The upper part of the valve chamber (20) has an outlet (22) for bleeding to the fuel tank (13). The valve cone (24) is provided with an inner passage (25) with a valve seat (25a) which, under normal fuel pressure, interacts with a bleed cone (26) that is movable in the passage (25).
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Moulis Thomas
Novak Druce & Quigg LLP
Volvo Lastvagnar AB
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