Exhaust treatment apparatus

An exhaust treatment apparatus for treating exhaust discharged from an exhaust port of an internal combustion engine when testing the internal combustion engine, comprising:

• a test bed equipped with a clamp mechanism to clamp the internal combustion engine;
• an arm supported on the test bed in such a way as to be able to rotate around a predetermined rotational axis;
• an arm actuator for rotating the arm and moving the arm between a test position close to the internal combustion engine and a standby position distant from the internal combustion engine;
• a masking section provided on the arm and having an inlet port to permit inlet of exhaust discharged from the exhaust port;
• and
• a masking-section actuator which couples the masking section to the arm in a movable manner and presses the masking section toward the internal combustion engine with the arm placed at the test position, thereby connecting the inlet port to the exhaust port.

An exhaust treatment apparatus for treating exhaust discharged from an exhaust port of an internal combustion engine when testing the internal combustion engine, comprising:

• a test bed equipped with a clamp mechanism to clamp the internal combustion engine;
• a slide mechanism provided upright on the test bed;
• an arm which is supported in such a manner as to be liftable up and down with respect to the slide mechanism and is lifted up and down by the slide mechanism in such a manner that the slide mechanism moves the arm between a test position close to the internal combustion engine and a standby position distant from the internal combustion engine;
• a masking section provided on the arm and having an inlet port to permit inlet of exhaust discharged from the exhaust port;
• and
• a masking-section actuator which couples the masking section to the arm in a movable manner and presses the masking section toward the internal combustion engine with the arm placed at the test position, thereby connecting the inlet port to the exhaust port.