Exhaust leading-out equipment for rear engine of catalytic converter

The invention provides exhaust leading-out equipment for a rear engine of a catalytic converter, and belongs to the technical field of internal combustion engines. The exhaust leading-out equipment for the rear engine of the catalytic converter comprises an engine air feeding tube, a supercharger, the engine, an engine exhaust tube, a turbine, connecting tubes, an adjusting cavity, a rotating shaft, a rotating plate, a control cavity, internal tubes, a spring, a rotating body and a stress plate, wherein the adjusting cavity is coaxially connected with the control cavity through the rotating shaft; the stress plate is connected with a left wall surface of a fixed body through the spring; one end of the second connecting tube penetrates in the fixed body and is connected with the first internal tube; and the other end of the second connecting tube is connected with the engine exhaust tube between the catalytic converter and a silencer. In the exhaust leading-out equipment for the rear engine of the catalytic converter, when the engine runs under the condition of high speed, the front exhaust volume of the turbine is large, pumping loss is low, and oil consumption is low; and when the engine runs under the working condition of low speed, the front exhaust volume of the turbine is small, pulse energy can be utilized sufficiently, and the oil consumption is low. The exhaust leading-out equipment for the rear engine of the catalytic converter is reasonable in design and simple in structure and is suitable for the optimization design of an exhaust system of a turbocharged engine.