The present invention has an object to provide an exhaust gas purifying apparatus for an internal combustion engine capable of obtaining accurate temperature information relating to a catalyst placed in an exhaust passage of the internal combustion engine....

An exhaust gas purifying system of an engine (1) in a marine vessel comprising: an engine (1); a water generating machine (21) for changing a sea water to a real water; a water tank (22) for reserving the real water produced by the water generating machine...

A marine vessel is loaded with a general fuel (a C heavy oil) tank (3) and a low sulfur fuel (an A heavy oil) tank (4). Further, an SCR catalyst (10) of a urea water spray type is arranged in an exhaust system of an engine (1), and a bypass exhaust gas pip...

Device for producing hydrogen comprises a reformer for converting an educt gas, a catalyst stage , and a heat exchanger. The heat exchanger is connected to a water feeding unit which is placed under high pressure to guarantee a liquid aggregate state of th...