Partitioning device for connecting pipes

A technology of connecting pipes and connecting shafts, which is applied to machines/engines, internal combustion piston engines, mechanical equipment, etc., can solve the problems of complex structure of the supercharging system, and achieve the effect of simple structure and reasonable design.

CN102767420AInactive Publication Date: 2012-11-07SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-11-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a partitioning device for connecting pipes in the technical field of internal combustion engines. The device comprises air compressors, an admission pipe, an engine, an exhaust pipe, turbines, a volume cavity, the connecting pipes, a moving body, a spring and a through pipe, wherein the moving body is arranged in the volume cavity, and contacts the inner wall surface of the volume cavity in a sealed way; the through pipe penetrates through the left and right wall surfaces of the moving body; and the lower wall surface of the moving body is connected with the lower wall surface of the volume cavity through the spring. When the engine is under a low speed working condition, the moving body moves downwards, only the first air compressor and the first turbine work, pulse energy is fully utilized, the admission pressure of the engine is high, and the overall performance of the engine is high; and when the engine is under a high speed working condition, the moving body moves upwards, the first and second air compressors and the first and second turbines work at the same time, the pumping loss of the engine is low, and the overall performance of the engine is high. The device is rational in design, simple in structure and applicable to a turbocharging system with two turbochargers.
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Description

technical field

[0001] The invention relates to a turbocharging system in the field of internal combustion engines, in particular to a connecting pipe isolating device. 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 a large-volume exhaust pipe, the structure of the exhaust pipe system is relatively simple, the equivalent flow area of ​​the turbine is relatively large, the pressure in the exhaust pipe is basically kept constant, and the pressure is only related to the load of the engine It is related to the rotati...

Examples

Embodiment

[0014] Such as figure 1 and figure 2 As shown, the present invention includes: a first air intake pipe 1, a first compressor 2, an engine intake pipe 3, an engine 4, an engine exhaust pipe 5, a first turbine 6, a first air outlet pipe 7, and a first connecting shaft 8 , volume cavity 9, volume cavity upper wall 10, volume cavity lower wall 11, volume cavity left wall 12, volume cavity right wall 13, volume cavity front wall 14, volume cavity rear wall 15, spring 16, first connecting pipe 17, The second connecting pipe 18, the third connecting pipe 19, the fourth connecting pipe 20, the through pipe 21, the moving body 22, the second compressor 23, the second turbine 24, the second suction pipe 25, the second air outlet pipe 26 and The second connection shaft 27, the air inlet and outlet of the first compressor 2 are connected with the air outlet of the first air intake pipe 1 and the air inlet of the engine intake pipe 3 respectively, and the air inlet and outlet of the engi...