Construction Machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Sep 17, 2015
app pub date -
Mar 16, 2015
filing date -
Mar 17, 2014
priority date (Note) -
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Abstract
In a NOx selective catalytic reduction device that purifies NOx in exhaust gas exhausted from an engine, a urea water supply system is constructed of a urea water injection valve, a urea water tank, urea water supply piping and a urea water supply device, a connection frame member is provided on a revolving superstructure to extend in a longitudinal direction in a center in a width direction to reinforce the revolving superstructure and to be located between a pair of main frame members that connects a working device so that a rear side faces the engine, the urea water tank is placed on the revolving superstructure on a front side from a center of revolution of the revolving superstructure, the engine is placed on the revolving superstructure on a rear side from the center of revolution of the revolving superstructure, and the urea water supply device is installed on the connection frame member to face the engine.
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