3/2-way valve

Details 3/2-way valve 3/2-way valve

2005-04-05

2005-04-05

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S447000

Reexamination Certificate

active

06874476

ABSTRACT:
The invention relates to a 3/2-way valve for controlling the injection of fuel in a common rail injection system of an internal combustion engine, having a first switching position, in which an injection nozzle is in communication with a fuel return, and a second switching position, in which the injection nozzle is in communication with a common rail. To improve the function and quality of the injection, the 3/2-way valve includes two force-balanced control pistons, which are guided separately from one another, and on each of which a respective valve seat edge is embodied.

REFERENCES:
patent: 4211202 (1980-07-01), Hafner
patent: 5526791 (1996-06-01), Timmer et al.
patent: 5651346 (1997-07-01), Remmels et al.
patent: 5979410 (1999-11-01), Grieshaber
patent: 6067955 (2000-05-01), Boecking
patent: 6129332 (2000-10-01), Dusterhoft

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