Rotary Exhaust Manifold Throat Area Variable Booster System

Abstract

The invention provides a supercharging system with the variable area for a throat of a rotary type exhaust header pipe, and belongs to the technical field of machinery design. The supercharging system comprises a volumetric cavity, an elastic component, a rotator, a partition, a rotating shaft, a rotating plate and a chain, wherein the longitudinal section of the volumetric cavity is ring-shaped; the longitudinal section of a fixator and the longitudinal section of the rotator are arc-shaped; an exhaust pipe is a round pipe with the uniform section; both a first penetration pipe and a second penetration pipe are arranged in the fixator; and upper wall surfaces of the second penetration pipe are connected with each other through the elastic component and the partition. When the pressure of an air inlet pipe of an engine is high, the rotator drives the rotating plate to rotate anticlockwise, the area of the throat of the exhaust pipe is high, and the pumping loss of the engine is low; and when the pressure of the air inlet pipe of the engine is low, the rotator drives the rotating plate to rotate clockwise, the area of the throat of the exhaust pipe is low, the pulse energy can be sufficiently used, and the available energy of the front of a turbine is high. The supercharging system is reasonable in design and simple in structure, and is applicable to a turbocharger system with a turbine inlet and a side turbine.

Description

technical field [0001] The invention relates to a turbocharging system in the technical field of mechanical design, in particular to a turbocharging system with variable throat area of ​​a rotary exhaust manifold. Background technique [0002] With the development of society and the improvement of environmental protection requirements, the application of engine supercharging technology is becoming more and more extensive. Most of the engines with medium and high power adopt turbocharging technology to improve power and reduce fuel consumption. The two basic types of turbocharging systems are constant pressure supercharging system and pulse supercharging system. Constant pressure supercharging system, each cylinder shares an exhaust pipe with a large volume, the structure of the exhaust pipe system is relatively simple, the pressure in the exhaust pipe is basically kept constant, the pressure is only related to the load and speed of the engine, different cylinder numbers The...

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Problems solved by technology

[0003] After searching the existing technical literature, it is found that Chinese patent number ZL201020532937.0, patent name: turbocharger device with variable exhaust pipe outlet area, this patent technology provides a device with continuously variable exhaust pipe outlet area , can better take into account the high and low speed conditions of the engine; but the change of the outlet area of ​​the exhaust pipe is realized by the rotation of the rotary handle, which requires adding a special control mechanism to control the rotation of the rotary handle, so that Make the supercharging system structure more complicated

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