Drawing-in type exhaust volume-controllable system

Abstract

The invention relates to a drawing-in type exhaust volume-controllable system and belongs to the technical field of internal combustion engines. The system comprises an engine gas inlet pipe, a supercharger, an engine, an engine exhaust pipe, a turbine, connecting tubes, adjusting cavities, rotating plates, a spring, fixed plates and a rotary shaft. The first adjusting cavity and the second adjusting cavity are coaxially connected through the rotary shaft. The spring is disposed on the clockwise rotation side of the second rotating plate and connected with the second rotating plate and the second fixed plate. One end of the second connecting tube is communicated with the second adjusting cavity. The other end of the second connecting tube is communicated with the engine gas inlet pipe between an intercooler and a throttle valve. The drawing-in type exhaust volume-controllable system has the advantages that when the engine operates at a high speed, the front exhaust volume of the turbine is large, pump gas loss is small, and oil consumption is low; when the engine operates at a low speed, the front exhaust volume of the turbine is small, pulse energy can be fully utilized, and oil consumption is low; the system is reasonable in design, simple in structure, and applicable to optimization design of the exhaust system of a turbocharged engine.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, and in particular relates to an introductory exhaust volume controllable system capable of realizing self-regulation of the exhaust pipe volume of a supercharged engine. Background technique [0002] The turbocharging system mainly includes a pulse supercharging system and a constant pressure supercharging system. In the constant-pressure supercharging system, each cylinder shares a large-volume exhaust pipe. The structure of the exhaust pipe system is relatively simple. The pressure in the exhaust pipe is basically kept constant, and the pressure is only related to the load and speed of the engine. The constant pressure supercharging system has less pumping loss, higher turbine efficiency and better performance under high-speed conditions; however, it cannot fully utilize the exhaust pulse energy under low-speed conditions. Pulse supercharging system, according to the firing...

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Problems solved by technology

[0003] After searching the existing literature, it is found that the patent application number is 200810203032.6, which is called the patented technology of the turbocharger device that uses the rotation of the partition to adjust the volume of the exhaust pipe. It provides a continuous variable volume of the exhaust pipe by using a rotating plate. technology, but its rotation needs to be done manually, and it cannot achieve self-rotation

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