Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2005-09-16
2010-02-02
Tran, Binh Q. (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S295000, C060S301000, C060S303000, C239S410000, C239S411000, C239S533130
Reexamination Certificate
active
07654080
ABSTRACT:
The invention relates to a dosing system comprising a dosing means for metering a liquid, especially an aqueous urea solution used for the after treatment of exhaust gases generated by combustion engines. The liquid can be conveyed from a reservoir into an exhaust manifold through the dosing means in a normally operating conveying device. According to the invention, at least one area that is located between a dosing point and the reservoir and is impinged upon by the liquid can be emptied counter to a normal transport direction of the liquid.
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Buerglin Markus
Heilig Dirk
Mayer Thorsten
Offenhuber Michael
Ripper Wolfgang
Greigg Ronald E.
Robert & Bosch GmbH
Tran Binh Q.
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