A High-Pressure Visible Window Applicable to Optical Measurement of Injector with Wide Nozzle Angle

Abstract

The present invention proposes a high-pressure-resistant visual window suitable for optical measurement of injectors with wide nozzle angles. The stepped surface is matched with the quartz glass window, the axis of the quartz glass window is not perpendicular to the axis of the constant volume bomb body, the centering O-ring is used to radially position the quartz glass window, a bypass hole is provided in the sleeve, and the quartz glass window The entire side of the shell is communicated with the cavity of the constant volume bomb body through the bypass hole opened on the sleeve to balance the air pressure on the bottom and side of the quartz glass. Several short bolts lock the quartz glass window tightly between the sleeve and the end cover. between. When using PLIF method to study the spray combustion characteristics of multi-hole injectors, it is difficult to measure the spray of wide nozzle angle injectors due to the limited window area of ​​constant volume bombs, and it is difficult to obtain the window intensity if the window area is too large Guaranteed technical issues, improve service life and safety factor.

Description

A high-pressure visualization window suitable for optical measurement of wide nozzle angle injectors technical field The present invention relates to a kind of high pressure-resistant visual window that is applicable to the optical measurement of wide nozzle angle fuel injector, belongs to thermal Power engine technology. Background technique The current energy crisis and environmental pollution problems are increasingly prominent, and the development of the internal combustion engine industry is facing unprecedented test. However, due to its good economy, convenience and reliability, the internal combustion engine cannot find a perfect substitute in a short period of time. Still the main force in the power industry. In order to further improve the performance of the internal combustion engine and make it more suitable for the current development trend, the internal The analysis and improvement of the spray combustion process of gas turbines play a crucial role, an...

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Problems solved by technology

[0010] The present invention is in order to solve the problem that when using the PLIF method to study the spray combustion characteristics of porous fuel injectors, it is difficult to measure the spray of wide nozzle hole angle fuel injectors due to the limited window area of ​​constant volume bombs, and the window area is too large and the window strength is too large. Technical problems that are difficult to be guaranteed, to adapt to the research work of different fuel injection strategies under higher temperature and pressure indicators

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