Urea injection device for selective catalyst reduction device
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United States of America Patent
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Jan 23, 2018
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N/A
app pub date -
Jul 10, 2014
filing date -
Dec 5, 2013
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Abstract
Disclosed is a urea injection device for a selective catalyst reduction device. The urea injection device for a selective catalyst reduction device serves to inject urea into a urea tank through a urea injection port and a urea injection line that connects the urea injection port and the urea tank. The urea injection device may include: i) a leveling pipe which is connected with the urea tank, ii) a separator which is installed to be connected with the leveling pipe, and connected to the urea injection port through a gas recirculation line, iii) a gas vent line which is connected with the separator, and iv) a check valve which is installed in the gas vent line.
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