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Apparatus simulating the motion of particles in engine cylinders

A technology of engine cylinders and inner particles, which is applied in the testing of engines, measuring devices, and testing of machine/structural components, etc. It can solve the problems of difficult particle observation and research and difficult moving particle research.

Active Publication Date: 2015-08-12
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the current research, it is difficult to observe and study the particles in motion, and the research on moving particles has always been a difficult problem in the industry

Method used

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  • Apparatus simulating the motion of particles in engine cylinders
  • Apparatus simulating the motion of particles in engine cylinders

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Embodiment Construction

[0021] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] like figure 1 and figure 2 As shown, a device and method for simulating particle movement in an engine cylinder includes an axial vortex vane 10, an adjustable speed motor 8, a filter screen 11, a simulated piston 4, a simulated piston adjustment rod 5, a height adjustment nut 6 and an image An acquisition system, wherein the image acquisition system includes a top CCD high-speed photographic camera 12-1, a side CCD high-speed photographic camera 12-2, an image collector 12-3 and an adjustment bracket 12-4. The lower end of the simulation cylinder 3 is fixed on the bracket 13 by bolts, the upper end is connected with the upper cover plate 9 by bolts, the adjustable speed motor 8 is fixed in the middle of the circular upper cover plate 9, and the adjustable speed motor 8 drives the axial eddy current through the connecting shaft 1 T...

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PUM

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Abstract

The invention discloses an apparatus simulating the motion of particles in engine cylinders. The apparatus comprises an axial eddy blade, an adjustable-speed motor, a filter screen, a simulated piston, a height adjusting rod, a height adjusting nut, and an image acquiring system. The adjustable-speed motor is fixed to a top cover plate through a fixing bolt and transfers power to the axial eddy blade through a coupling shaft. Axial eddy is generated in a simulated cylinder made of a transparent material. The top of the simulated cylinder is connected with the top cover plate through a bolt. The bottom of the simulated cylinder is connected with a support through a bolt. The position of the simulated piston is changed by the adjustment of the height adjusting nut. The apparatus may approximately simulate the motion of particles in a simulated cylinder, simulates the motion states between single particles in different strokes of an engine, reveals a rule of particle growth, provides a reference for inhibiting particle generation, and achieves a purpose of reducing particle discharge.

Description

technical field [0001] The invention relates to a device for simulating particle movement in an engine cylinder, belonging to the technical field of engine testing. Background technique [0002] The particulate matter emitted by diesel engines is one of the main causes of smog. The particulate matter emitted is produced inside the engine cylinder. The automobile emission standards have been implemented more and more strictly. In order to meet more stringent standards, it is necessary to study the growth and movement path of particles in the engine cylinder, and to study the formation mechanism of particles. [0003] The particle size is on the order of nanometers, and the static particles can be analyzed and studied by effective means such as electron microscope and scanning microscope. In the current research, it is difficult to observe and study the particles in motion, and the research on moving particles has always been a difficult problem in the industry. [0004] Acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/00G01N15/00
Inventor 王忠赵洋孙波刘帅杨芳玲李晓晓
Owner JIANGSU UNIV
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