Optical experiment platform based on spray combustion visualization of rapid compressor

A technology of spray combustion and experimental platform, which is applied in the direction of engine testing, machine/structural component testing, internal combustion engine testing, etc., and can solve problems such as complex engine structure, poor effect, and great difficulty

A technology of spray combustion and experimental platform, which is applied in the direction of engine testing, machine/structural component testing, internal combustion engine testing, etc., and can solve problems such as complex engine structure, poor effect, and great difficulty

CN112557046APending Publication Date: 2021-03-26XI AN JIAOTONG UNIV
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  • Optical experiment platform based on spray combustion visualization of rapid compressor
  • Optical experiment platform based on spray combustion visualization of rapid compressor
  • Optical experiment platform based on spray combustion visualization of rapid compressor

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] see Figure 1 to Figure 5 , an optical experiment platform based on the visualization of rapid compressor spray combustion provided by the present invention, including a visual combustion chamber 1, a compression cylinder 2, a hydraulic section 3, a connecting rod 4, a driving section 5, an electric butterfly valve 6, a metal hose 7, The high-pressure air storage tank 8, the air compressor 9, the hydraulic oil tank 10 with the hydraulic oil pump 11 and the piston 28 are composed. The combustion chamber 1 is composed of a window end cover 18 , a rubber gasket 19 , a quartz glass window 20 , a high temperature sealing ring 21 , an injector end cover 22 , and a combustion chamber main body 24 . The Schlieren optical system is composed of LED light source 33 , optical slit 32 , convex lens 31 , knife edge 30 , and high-speed camera 29 . The fuel supply system cons...

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Abstract

The invention discloses an optical experiment platform based on spray combustion visualization of a rapid compressor. The optical experiment platform is used for simulating the compression stroke of an engine and the spray development and combustion process. The platform comprises a rapid compressor system, a visual combustion chamber, a fuel supply system, a data acquisition system, a schlieren method optical system and the like. The rapid compressor and the visual combustion chamber can provide in-cylinder thermal conditions similar to those of an actual engine. The fuel injector and the fuel supply system can realize injection conditions of different pressures and pulse widths; in-cylinder pressure signals can be collected through the data acquisition system, and experiment images of the spraying development and combustion process are obtained through a schlieren method. The invention provides an experimental platform and method for researching spray development and combustion underthe in-cylinder thermal condition similar to that of an actual engine, provides a technical scheme for in-cylinder spray visualization research, and is beneficial to development of spray combustion mechanism research under high-temperature and high-pressure conditions.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, and in particular relates to an optical experiment platform based on fast compressor spray combustion visualization. Background technique [0002] As an important power device, the engine is widely used in the transportation and industrial production of human society, but the increasingly severe energy situation and stricter emission regulations put forward higher requirements for the development of the engine. The fuel injection, evaporation and combustion process in the engine cylinder directly affect the perfection of engine combustion, and then affect the power, economy and emission characteristics of the engine. Therefore, it is necessary to conduct more in-depth research on the in-cylinder spray development process and spray combustion process. However, due to the complex and compact structure of the engine, it is difficult to use non-contact measurement optical methods...

Claims

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Application Information

Patent Timeline
26 Mar 2021
Publication
CN112557046A
IPC
G01M15/10; G01M15/04; G01M15/02
CPC
G01M15/02; G01M15/04; G01M15/10
Inventors
汤成龙; 麦棹铭