Fuel injection system for an internal combustion engine

Details Fuel injection system for an internal combustion engine Fuel injection system for an internal combustion engine

2005-05-10

2005-05-10

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C239S088000, C239S096000

Reexamination Certificate

active

06889661

ABSTRACT:
A fuel injection system having a high-pressure pump and a fuel injection valve for each cylinder of the engine in which the pump has a work chamber, and the injection valve has a valve member movable in an opening direction counter to the force of a closing spring braced between the injection valve member and a displaceable storage piston that is acted upon, on its side remote from the closing spring, by the pressure in the pump work chamber. The storage piston is movable into a storage chamber counter to the force of the closing spring, and the deflection stroke motion of the storage piston is limited by a stop. The storage piston has one shaft portion of smaller cross section, disposed in an outset position in a connecting bore, and one portion of larger cross section disposed outside the connecting bore toward the pump work chamber, and upon the deflection stroke motion of the storage piston into the storage chamber, its shaft portion of larger cross section dips into the connecting bore.

REFERENCES:
patent: 4750462 (1988-06-01), Egler et al.
patent: 5533481 (1996-07-01), Kronberger
patent: 6575140 (2003-06-01), Boecking
patent: 20040099250 (2004-05-01), Strahbenger et al.
patent: 3900763 (1990-07-01), None
patent: 19940558 (2000-03-01), None
patent: 2086473 (1982-05-01), None

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