Method for starting the operation of a device for providing a liquid additive
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United States of America Patent
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Jan 30, 2018
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app pub date -
Feb 25, 2014
filing date -
Mar 4, 2013
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Abstract
A method for starting operation of a device for providing a liquid additive, the device having at least one preheating element and at least one PTC heating element, includes: a) heating by the at least one preheating element; b) conducting heat from the at least one preheating element to the at least one PTC heating element such that a temperature of the at least one PTC heating element is raised; and c) heating by the at least one PTC heating element when the temperature of the PTC heating element has been raised.
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