Automotive construction machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 29, 2012
Grant Date -
Feb 18, 2010
app pub date -
Mar 6, 2008
filing date -
Jun 26, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ureal water tank (28), a storage of an aqueous urea solution, is located within a utility room (6G) in a right front section of a revolving frame (6), which is readily accessible from outside. In this instance, among a plurality of operating oil conduits (18), a working mechanism operating conduit (21) which supplies operating oil to a boom cylinder (5D) of a working mechanism (5) is arranged to run along exterior surfaces of the ureal water tank (28). Therefore, even if the ureal water tank (28) is located in a place with no heat source, the aqueous urea solution in the ureal water tank (28) can be stably kept in a heated state by utilization of heat of operating oil in circulation through the working mechanism operating conduit (21).
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