Engine system for working machine configured to contain noise reduction equipment

An engine system for a working machine, the engine system comprising:

• an engine disposed in a main body of the working machine;
• an exhaust manifold coupled to the engine;
• a tail pipe;
• an exhaust-gas purification device disposed in the main body and comprising:
• an exhaust-gas inlet-side housing comprising an exhaust-gas inlet coupled to the exhaust manifold and a first opening, wherein the exhaust-gas inlet-side housing defines a first through channel between the exhaust-gas inlet and the first opening,
• an exhaust-gas outlet-side housing coupled to the exhaust-gas inlet-side housing, the exhaust-gas outlet-side housing comprising an exhaust-gas outlet coupled to the tail pipe and a second opening, wherein the exhaust-gas outlet-side housing defines a second through channel between the second opening and the exhaust-gas outlet, and
• an exhaust-gas outlet cover in contact and removably coupled to the exhaust-gas outlet-side housing,
• the exhaust-gas purification device containing equipment to purify exhaust gas discharged from the engine, and wherein the exhaust-gas purification device is configured to cause the purified exhaust gas to be discharged from the tail pipe to an outside of the engine system;
• and
• wherein the exhaust-gas purification device is configured such that the equipment to purify the exhaust gas from the engine is removable from the first through channel, the second through channel, or both, to accommodate at least a portion of a silencer device to be positioned within the first through channel, the second through channel, or both, at a location previously occupied by a portion of the equipment to purify the exhaust gas that is removed,
• wherein the exhaust-gas outlet cover configured to be:
• removed from being coupled in direct contact with the exhaust-gas outlet-side housing to enable the portion of the silencer device to be inserted into the second through channel via the exhaust-gas outlet, and
• coupled to the exhaust-gas outlet-side housing via a flange of the silencer device when the portion of the silencer device is positioned within the second through channel, and
• wherein the silencer device is configured to attenuate exhaust sound of the engine.