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US 11,143,076 B2Granted
Urea water spraying device
AssigneeIsuzu Motors Limited
InventorRyusuke Fujino
Life of this patent
Estimating the term…
Abstract
A urea water spraying device 20 is provided with: a urea water spraying nozzle 22 for spraying urea water into an exhaust passageway 3 of an engine 2; an assist gas spraying nozzle 23 for spraying an assist gas for promoting atomization of the urea water that has been sprayed by suctioning the urea water sprayed from the urea water spraying nozzle 22 and blowing the urea water into the exhaust passageway 3; and an assist gas supply passageway 27 for supplying the assist gas spraying nozzle 23 with exhaust passing through the exhaust passageway 3 as the assist gas.
Claims4
A urea water spraying device comprising:
- a urea water spraying nozzle that is configured to spray urea water into an exhaust passage of an engine;
- an assist gas spraying nozzle that is configured to spray, an assist gas for promoting atomization of the urea water sprayed from the urea water spraying nozzle by sucking the sprayed urea water and blowing the urea water into the exhaust passage;
- and
- an assist gas supply passage that is configured to supply the assist gas spraying nozzle with an exhaust gas passing through the exhaust passage as the assist gas,
- wherein the assist gas spraying nozzle includes a first portion disposed coaxially with the urea water spraying nozzle so as to surround a periphery of the urea water spraying nozzle, and
- wherein a distal end portion of the assist nozzle extends further to the exhaust passage than a distal end portion of the urea water spraying nozzle.
3 more elements
Dependencies are inferred from the claim text.