Constant volume combustion bomb device capable of turbulence movement simulation, and control system for constant volume combustion bomb device

Abstract

The invention discloses a constant volume combustion bomb device capable of turbulence movement simulation, and a control system for the constant volume combustion bomb device. The device comprises acylindrical hollow bomb body, wherein the two ends of the bomb body are sealed through a front flange, a rear flange, and a spark plug mounting seat; observation windows are distributed on the side wall of the bomb body; a pneumatic driving device and a porous plate are assembled in the bomb body; the spark plug mounting seat is fixed on the front flange; the pneumatic driving device is fixed on the rear flange; and the porous plate is arranged on the pneumatic driving device and carries out translational movements along the inner wall of the bomb body. The device and the system disclosed by the invention have the advantages that the pneumatic driving device mounted in a constant volume combustion bomb is used as a power source to drive the porous plate to move, so that turbulences can beproduced due to throttling effects after gas flows pass through the porous plate; the problem of high difficulty in sealing is radically avoided through the device, and better isotropic turbulences can be generated in the constant volume combustion bomb; and the device achieves a high response speed and is easy to implement.

Description

technical field [0001] The invention relates to the technical field of internal combustion engine experiments, in particular to a constant-volume incendiary bomb capable of simulating turbulent flow motion and a control system thereof. Background technique [0002] In-cylinder spray combustion of internal combustion engine fundamentally determines the power performance and emission performance of internal combustion engine, so it is of great significance to study internal combustion engine spray combustion. At present, scholars at home and abroad are mostly conducting basic research on the spray combustion characteristics of internal combustion engines in spray combustion simulation devices, especially with constant volume incendiary bombs. [0003] What the constant volume incendiary bomb simulates is the constant volume combustion process in the cylinder when the engine piston moves to near the top dead center. Under the premise of ensuring airtightness, it is very conven...

AI Technical Summary

Problems solved by technology

This design requires the coordinated operation of the fan group, and each fan must be driven by its own independent motor, thus making the structure of the entire constant volume incendiary bomb device system quite complicated

In addition, there is a rotary motion between the connecting shaft between the motor and the fan and the constant volume incendiary bomb, and there is also a sealing problem

The compound turbulent constant volume incendiary bomb has a more complicated structure

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