Exhaust pipe pressure control device with chain

Abstract

The invention relates to an exhaust pipe pressure control device with a chain in the technical field of mechanical design. The exhaust pipe pressure control device comprises a volume cavity, an elastic component, a rotating body, a separating plate, a rotating shaft, a rotating plate and a chain, wherein the longitudinal section of the volume cavity is in a circular ring shape, the longitudinal sections of a fixing body and the rotating body are respectively in a circular arc shape, an exhaust pipe is a uniform-section round pipe, a first penetrating pipe and a second penetrating pipe are respectively arranged in the fixing body, and the upper wall surface of the second penetrating pipe is connected with the separating plate through the elastic component. When the pressure in an exhaust pipe of an engine is higher, the rotating body drives the rotating plate to anticlockwise rotate, the throat opening area of the exhaust pipe is relatively larger, and the pumping loss of the engine is less; and when the pressure of the exhaust pipe of the engine is lower, the rotating body drives the rotating plate to clockwise rotate, the throat opening area of the exhaust pipe is relatively smaller, the pulse energy can be fully utilized, and the available energy in front of a turbine is more. The exhaust pipe pressure control device has the advantages that the design is reasonable, the structure is simple, and the engine system is applied to a turbocharging system with one turbine inlet and lateral turbine arrangement.

Description

technical field [0001] The invention relates to a turbocharging system in the technical field of mechanical design, in particular to an exhaust pipe pressure control device with a chain. 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 supercharging system of th...

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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 t

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