AQUEOUS UREA SOLUTION SUPPLY DEVICE - VOLVO CONSTR EQUIP AB

Title:

AQUEOUS UREA SOLUTION SUPPLY DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/074624

Kind Code:

A1

Abstract:

The present invention relates to an aqueous urea solution supply device and, more particularly, to an aqueous urea solution supply device capable of cooling an aqueous urea solution that has been overheated to a preset temperature or higher such that the same is cooled to the preset temperature or lower, even during an operation of a construction machine, thereby increasing the operation time of the construction machine. To this end, the present invention provides an aqueous urea solution supply device comprising: an aqueous urea solution tank in which an aqueous urea solution is stored; a nozzle connected to the aqueous urea solution tank so as to eject the aqueous urea solution, which is supplied from the aqueous urea solution tank, to exhaust gas discharged from a vehicle; an aqueous urea solution supply hose line connecting the aqueous urea solution tank and the nozzle so as to provide a passage of movement of the aqueous urea solution supplied from the aqueous urea solution tank to the nozzle; an aqueous urea solution recovery hose line connecting the aqueous urea solution tank and the nozzle so as to provide a passage of movement of the aqueous urea solution that has been supplied from the aqueous urea solution tank to the nozzle but is recovered and sent to the aqueous urea solution tank without being ejected; and an aqueous urea solution cooling portion connected to the aqueous urea solution recovery hose line so as to cool the aqueous urea solution, which is recovered and sent to the aqueous urea solution tank, in the recovery process.

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Inventors:

CHOI DONGMYOUNG (KR)
LEE YUHEE (KR)
CHOI MINSU (KR)

Application Number:

PCT/KR2016/011769

Publication Date:

April 26, 2018

Filing Date:

October 19, 2016

Export Citation:

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Assignee:

VOLVO CONSTR EQUIP AB (SE)
CHOI DONGMYOUNG (KR)
LEE YUHEE (KR)
CHOI MINSU (KR)

International Classes:

F01N3/20

Foreign References:

JP2008261247A	2008-10-30
KR20130014233A	2013-02-07
KR101294031B1	2013-08-08
JP2004293494A	2004-10-21
JP2009002261A	2009-01-08

Attorney, Agent or Firm:

KIM, Seon-Min (KR)

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