An optical engine with variable field of view

Abstract

The invention discloses an optical engine with variable view field. The optical engine comprises a cylinder body of the engine, a cylinder cover and a lengthened piston, wherein the middle part of the lengthened piston has hollowed structure, a reflector is placed in the space of the hollowed structure, and a piece of circular planar quartz glass is arranged at the top of the lengthened piston; aguide base is fixed at the upper part of the cylinder body, and cylinder sleeves are fixed between the guide base and the cylinder cover; the number of the cylinder sleeves is three, the heights of the three cylinder sleeves are consistent, and the connecting mode between each cylinder sleeve and the cylinder cover at the upper part of the cylinder sleeve and between the cylinder sleeve and the guide base at the lower part of the cylinder sleeve and the geometric dimension of the cylinder sleeves are the same to ensure interchangeability of the three cylinder sleeves; and the three cylinder sleeves are respectively a metal lengthened cylinder sleeve, an annular quartz glass cylinder sleeve and a planar mosaic glass cylinder sleeve, and variable view field of the optical engine is realizedby alternately using the three cylinder sleeves. The problem that a conventional optical engine cannot meet multiple measurement requirements at the same time is solved, and various measurement requirements are met by integrated design and adaptive design of the cylinder sleeves.

Description

technical field [0001] The invention relates to the combustion diagnosis of an automobile engine, in particular to an optical engine. Background technique [0002] Optical engines can use optical visualization technology to diagnose and analyze the state of the cylinder, and provide guidance for engine combustion design and combustion optimization. At present, many internal combustion engine research institutions at home and abroad have established corresponding optical engine visualization measurement platforms, which have played an important role in engine combustion theory and engine design. [0003] The main purpose of the optical engine is to open a visualization window on the engine under conditions as close as possible to the actual engine operation to obtain the information in the cylinder when the engine is running. After decades of development, the extended piston engine has become a typical optical engine mode. [0004] Anders Hultqvist, Magnus Christensen, Lund...

AI Technical Summary

Problems solved by technology

To solve the problem that one optical engine cannot meet multiple measurement requirements at the same time, through the integrated design and adaptive design of the cylinder liner, the configurability of various measurement requirements can be realized

Images