Importance

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Abstract

A work vehicle includes an engine, an exhaust treatment device configured to treat the exhaust of the engine, a reducing agent injection device configured to inject a reducing agent into the exhaust treatment device, a reducing agent tank for storing the reducing agent, an operator compartment, an engine cooling circuit, a reducing agent injection device cooling circuit, a reducing agent tank antifreezing circuit, and a heating circuit for the operator compartment. The reducing agent injection device cooling circuit, the reducing agent tank antifreezing circuit, and the heating circuit are arranged to communicate with the engine cooling circuit. One of the reducing agent injection device cooling circuit, the reducing agent tank antifreezing circuit, and the heating circuit is arranged in series with the other circuits.

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First Claim