Patent ID: 9303388
Filing Date: 2016-04-05
CPC Classification: B60K,B60Y,E02F,F01N,F01P,Y02A,Y02T

Claim Text:
1. A work vehicle, comprising: an engine; an exhaust gas purification apparatus for purifying a nitrogen oxide in an exhaust gas emitted from said engine; a reducing agent tank for storing a reducing agent to be supplied to said exhaust gas purification apparatus; an engine coolant circuit including a water pump for circulating an engine coolant for cooling of said engine through a circulation path as said engine is driven; a branch path provided for heat exchange between said engine coolant and said reducing agent in said reducing agent tank; a valve for controlling supply of said engine coolant into said branch path; an accepting portion for accepting an operation instruction, given by an operator, for an air release mode in which air is released from said branch path; and a valve control unit for giving an instruction for an opening operation of said valve in response to said operation instruction given by said operator.