Passive chain transmission system

Abstract

The invention discloses a passive chain transmission system in the technical field of mechanical design. The passive chain transmission system comprises regulation bodies, a rotating shaft, a rotating body, a stretching body, centrifugal bodies, balls, a pull rod, springs, a chain and a regulation pipe. The rotating shaft and the rotating body are fixedly connected together. The stretching body and the centrifugal bodies are all arranged in the rotating body. The balls are embedded in the stretching body. One side wall of each centrifugal body is in contact with the stretching body through the corresponding ball, and the other side wall of each centrifugal body is connected with the inner wall face of the rotating body through the corresponding first spring. The top of the stretching body is connected with the inner wall face of the rotating body through the second spring. In the passive chain transmission system, when the rotating speed of an engine is high, regulation plates rotate anticlockwise, the total front exhaust volume of a turbine is large, and the pumping loss is low; and when the rotating speed of the engine is low, the regulation plates rotate clockwise, the total front exhaust volume of the turbine is small, and exhaust pulse energy can be fully utilized. The passive chain transmission system is reasonable in design, simple in structure and suitable for optimization design of the volume of an exhaust pipe of a turbocharging system.

Description

technical field [0001] The invention relates to a passive chain transmission system in the technical field of mechanical design, in particular to a passive chain transmission system suitable for a supercharged engine exhaust system. 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 sequence of each cylinder, connects ...

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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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