Engine system with airway switching device

An engine system and switching device technology, which is applied to combustion engines, machines/engines, internal combustion piston engines, etc., can solve the problems of complex structure of the supercharging system, and achieve the effect of simple structure and reasonable design.

CN102817702AInactive Publication Date: 2012-12-12SHANGHAI JIAO TONG UNIV
5 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-12-12
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention provides an engine system with an airway switching device in the technical field of an internal combustion engine, comprising air compressors, an air inlet pipe, an engine, an air exhaust pipe, turbos, a volume chamber, connection pipes, a moving body, a spring and penetration pipes, wherein the moving body is installed in the volume chamber and further contacts with the inner wall face of the volume chamber in a sealing way; the first penetration pipe and the second penetration pipe penetrate through the left wall face and the right wall face of the moving body; and the upper wall face of the moving body is connected with the upper wall face of the volume chamber through the spring. When the engine is located under the low speed working condition, the moving body moves upward; only the first air compressor and the first turbo work; the pulse energy is fully utilized; the air inlet pressure of the engine is higher; and the overall performance of the engine is better. When the engine is located in the high speed working condition, the moving body moves downward; the first air compressor, the second air compressor, the first turbo and the second turbo simultaneously work; the pumping loss of the engine is less; and the overall performance of the engine is better. The engine system with the airway switching device is rational in design, simple in structure and applicable for a turbo charging system with two turbo superchargers.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a turbocharging system in the field of internal combustion engines, in particular to an engine system with a gas path switching 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 relate...

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, Second connecting pipe 18, third connecting pipe 19, fourth connecting pipe 20, fifth connecting pipe 21, first through pipe 22, second through pipe 23, moving body 24, second compressor 25, second turbine 26 , the second air intake pipe 27, the second air outlet pipe 28 and the second connecting shaft 29, 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 air intake pipe 3 respectively , th...