| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a supply device for solid urea grains capable of omitting the transport supported by pressure air and performing the quantity regulation of the urea grains so as to suit the requisite ammonia amount. <P>SOLUTION: The supply device 7 for supplying solid urea grains into an ammonia generator 6 installed inside or outside of an exhaust gas pipeline is structured as generating NOx reduction when the exhaust gas of an internal combustion engine is purified with a catalyst, in this case urea grains are stored in a reserve tank 5, and is equipped with a casing 15 furnished with an influx part 24 for supplying the urea grains, a rotary disc 26 having at least one accelerative passage(s) 28, 29 formed spirally and located internally being driven by a motor, and an outflow passage 30 led to the outside, wherein to the outflow passage a pipe 15 leading to the ammonia generator 6 is connected. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
