METHOD FOR HEATING A DELIVERY DEVICE FOR A REDUCING AGENT
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United States of America Patent
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app pub date -
Mar 12, 2012
filing date -
Sep 11, 2009
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Abandoned
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Abstract
A method for heating a delivery device for a reducing agent includes providing the delivery device with a return valve which is in an open position when an opening current is supplied to the return valve and which is in a closed position and operates as a heater when a heating current that is smaller than the opening current is supplied to the return valve. The return valve is preferably in heat-conducting contact with a metallic base plate of the delivery device.
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