发明名称 |
UREA-WATER SOLUTION HEATING AND COOLING DEVICES FOR CONSTRUCTION EQUIPMENT |
摘要 |
Disclosed are urea-water solution heating and cooling devices for construction equipment for reducing nitrogen oxides in an exhaust gas discharged from an engine. The urea-water solution heating device, according to the present invention, comprises: an SCR mounted on an exhaust pipe of an engine to perform a reduction process on nitrogen oxides in an exhaust gas discharged along the exhaust pipe; an urea-water solution tank that stores an urea-water solution; an injector mounted on the exhaust pipe on the upstream side of the SCR to inject the urea-water solution supplied from the urea-water solution tank into the exhaust pipe; a valve installed on a conduit between a cooling water pump and the urea-water solution tank to supply engine cooling water introduced from the cooling water pump to the urea-water solution tank when being opened in order to increase the temperature of the urea-water solution in the urea-water solution tank to a set value; and a controller that opens the valve in order to supply the engine cooling water to the urea-water solution tank and controls to drive an urea-water solution pump in order to supply the urea-water solution in the urea-water solution tank to the injector. |
申请公布号 |
WO2016178444(A1) |
申请公布日期 |
2016.11.10 |
申请号 |
WO2015KR04560 |
申请日期 |
2015.05.07 |
申请人 |
VOLVO CONSTRUCTION EQUIPMENT AB;PARK, Cheol-Hyun |
发明人 |
PARK, Cheol-Hyun |
分类号 |
F01N3/20;E02F9/00;F01N3/28;F01P7/14 |
主分类号 |
F01N3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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